EP1457445B1 - Sheet feeder in image reading apparatus - Google Patents
Sheet feeder in image reading apparatus Download PDFInfo
- Publication number
- EP1457445B1 EP1457445B1 EP04251424A EP04251424A EP1457445B1 EP 1457445 B1 EP1457445 B1 EP 1457445B1 EP 04251424 A EP04251424 A EP 04251424A EP 04251424 A EP04251424 A EP 04251424A EP 1457445 B1 EP1457445 B1 EP 1457445B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- driven roller
- segments
- roller
- fed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 239000011521 glass Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
- B65H29/14—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/133—Limited number of active elements on common axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/134—Axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/143—Roller pairs driving roller and idler roller arrangement
- B65H2404/1431—Roller pairs driving roller and idler roller arrangement idler roller details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/50—Surface of the elements in contact with the forwarded or guided material
- B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
- B65H2404/531—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties particular coefficient of friction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/06—Office-type machines, e.g. photocopiers
Definitions
- the invention relates to a sheet feeder that feeds a sheet, such as a document, in an image reading apparatus, and, more particularly, to a structure to prevent image reading failures caused by a sheet to be fed being instantaneously stopped at a reading part when a leading edge of the sheet collides with a roller disposed at a downstream position of the reading part.
- a facsimile, scanner or copier a plurality of documents are stacked at one place, and fed one by one by an auto sheet feeder to read images on the documents at a reading part where a line-type CCD image pickup device or a line-type contact image sensor (CIS) is disposed.
- a sheet feeder which comprises a roller pair, that is, a drive roller and a driven roller used in pair, is provided at a downstream side of the reading part.
- a nip portion between the drive roller and the driven roller extends in an axial direction of the rollers and is parallel to the direction perpendicular to the sheet feed direction.
- Japanese Laid-Open Patent Publication No. 2001-30857 (upon which the precharacterising portion of appended claim 1 is based) discloses a paper sheet discharging mechanism formed of pairs of rollers, which are driving rollers and driven rollers, that press against the driving rollers, for discharging the paper sheets from the inside of the device.
- Axes of the driven rollers that press the paper sheets to the driving rollers, that convey the paper sheets in the sheet discharging direction, are disposed on planes parallel to the axes of the driving rollers, and arranged symmetrically with respect to a centerline of the sheets to be discharged and inclined with respect to the axes of the driving rollers.
- the sheets to be discharged are deflected at a center of the width, the deflection continues in the direction of travel, which produces a shape based stiffness in the sheets, thereby making the sheets stiff.
- this prevents the sheets from drooping downstream of the roller feeding, and jamming during discharge.
- the deflection protruding substantially in the center of the document may continue up to the upstream side of the feeding.
- the deflection may be curved approaching or going away from the reading part, resulting in the distance from the document to the reading part may change between a part with the deflection and a part without the deflection.
- the degree of approach of the document to the reading part in its width direction varies greatly. As a result, image data of correct size cannot be obtained.
- EP 0 919 878A describes an image forming apparatus aimed at eliminating a possibility of causing deterioration in conveying and scratching off toners on a recording medium by smoothly rotating a driven roller corresponding to rotations of a driving roller.
- Rubber rings spaced away in an axial direction from the driving roller are fitted to a shaft of a driven roller brought into contact with the driving roller.
- a record sheet conveyed with rotations of the driving roller rotates the rubber rings, whereby the driven roller can be surely rotated.
- the invention provides a sheet feeder as defined in appended claim 1.
- FIG. 1 is a perspective view of a multifunction device including a document reader having an auto sheet feeder according to the invention
- FIG. 2 is perspective view where a cover of the document reader having the auto sheet feeder is open from a main body case;
- FIG. 3 is side sectional view showing essential parts of the document reader having the auto sheet feeder
- FIG. 4 is a top view of a pair of ejection rollers disposed on a downstream side from a document reading part with respect to a sheet feed direction;
- FIG. 5A is a top view of driven rollers except for drive rollers
- FIG. 5B is an enlarged perspective view of a guide groove for a support shaft of a driven roller
- FIG. 5C is an enlarged sectional view taken along line Vc-Vc of FIG. 5A ;
- FIG. 6 is a pictorial view showing an embodiment of the invention.
- the embodiment is applied to a document reader 2 with an auto sheet feeder 6 in a multifunction device 1 including a facsimile function, a scanner function, a copier function, and a printer function.
- a large-sized glass plate 4 for placing a document thereon is fixed in a horizontal state on a top surface of a main body case 3 of the multifunction device 1.
- An operation panel portion 5 is provided in a front part of the top surface of the main body case 3.
- the operation panel portion 5 includes a ten keypad for executing the facsimile function, the scanner function, and the copier function, buttons for issuing directives for various operations, and a liquid crystal display.
- the document reader 2 As shown in FIGS. 1 and 2 , the document reader 2, with the auto sheet feeder 6, is made up of a cover assembly 7, the auto sheet feeder 6, and a reading element 9.
- the cover assembly 7 is attached to a rear edge of the top surface of the main body case 3 via hinges 8 so as to swing up and down.
- the auto sheet feeder 6 is provided on one end of a top surface of the cover assembly 7, and the reading element 9 includes a line-type CCD image pickup device, which is arranged at one end of a lower surface of a side-edge 4a of the glass plate 4.
- the glass plate 4 is fixed to the upper surface of the main body case 3.
- the document reader 2 is structured such that a document is placed face down on the large-sized glass plate 4 and is held by a holding member 7a.
- the holding member 7a is, for example, a sponge pad provided on a lower surface of the cover assembly 7. Images on the document are read by the reading element 9 that moves on a guide rail 10 disposed along the lower surface of the large-sized glass plate 4 on the basis of an image reading instruction.
- a case portion 11 of the auto sheet feeder 6 is fixed on one end of the cover assembly 7, and a document tray 12 is disposed on one end of the case portion 11 at an inclined angle so that its free end extends upwardly.
- a discharge paper tray 13 is formed on the top surface of the cover assembly 7 where a document P is discharged.
- a beginning 14a of the upper path plate 14 is located in close proximity to the document tray 12.
- a separation roller 15 that feeds documents P, while separating them one by one, stacked on the document tray 12, a sheet sensor 16, with a detection lever 16a that pivots by contact with a leading edge of the document P, and a pair of paper feed rollers 17a, 17b are provided on the upper path plate 14.
- a downward curved end 14b of the upper path plate 14 and a beginning 18a of a lower path plate 18 partially overlap.
- An end 18b of the lower path plate 18 extends toward ejection rollers 19, 20 arranged proximate the discharge paper tray 13.
- a pair of conveying rollers 21a, 21b are disposed close to the beginning 18a of the lower path plate 18 at an upstream side of a reading point 23a.
- a rear sensor 22, with a detection lever 22a is provided in close proximity to the conveying rollers 21a, 21b.
- the detection lever 22a detects the leading and trailing edges of a document P to find its length and to determine the occurrence of a paper jam.
- the lower path plate 18 is curved downwardly in the middle portion with respect to a feed direction, and includes a reading window 23 at its lowest position.
- the reading window 23 has a rectangular shape, in plan view, and opens above the reading device 9 when at the stop position.
- the reading window 23 is formed such that a length Lo, in the sheet feed direction, is short and a length in a direction perpendicular to the sheet feed direction is long (with reference to FIGS. 1 and 3 ).
- a plurality of ribs 24 are arranged above the lower path plate 18 with such a narrow spacing that a document P can pass so that a lower surface (from which the image is read) of the document P can slide on a surface of the reading point 23a.
- a cover 26 is pivotable about a shaft 27 at its proximal end on one end of the case portion 11 (opposite from the document tray 12), and is structured so as to expose the upper portion of the upper path plate 14 when a paper jam occurs.
- the drive roller 19 and the driven roller 20 are disposed at a downstream side from the reading point 23a. Both the drive roller 19 and the driven roller 20 comprise a plurality of roller segments.
- the drive roller 19, disposed on an upper side, is fixed to a drive shaft 29 that is parallel to a direction perpendicular to the sheet feed direction (X-axis direction in FIG. 4 ).
- the drive shaft 29 is rotated by a drive motor and a transmission gear (not shown) in sheet feed direction.
- At least a peripheral layer of the drive roller 19 is made from rubber having a large coefficient of friction with respect to the document P. Pairs of segments of the drive roller 19 and the driven roller 20 are provided in a plurality of places on drive shaft 29 and support shafts 30, respectively (four places, or pairs in the embodiment), and symmetrically on each side of a centerline O of the document P with respect to its width (a sheet dimension in Y-axis direction in FIG. 4 ).
- each segment of the driven roller 20 is made from a synthetic material, such as polyacetal, having a lower coefficient of friction with respect to the document P than that of the segments of the drive roller 19.
- the driven roller 20 preferably has a minimal coefficient of friction. That is, the driven roller 20 must have a coefficient of friction lower than, at least, that of the drive roller 19.
- the segments of the driven roller 20 are fitted on a pair of support shafts 30 so as to press against the corresponding segments of drive roller 19.
- the segments of the driven roller 20 are arranged symmetrically with two segments on each side of the centerline O and axes 20a of the driven roller 20 segments (axes of the support shafts 30) are arranged so they are not perpendicular to the sheet feed direction (X-axis direction), i.e., not parallel to the Y-axis direction, but are inclined at an angle of q degrees (1 to 3 degrees in the embodiment, for example and exaggerated in Figure 5A for purposes of illustration) with respect to the Y-axis.
- the driven roller 20 segments are disposed on a slant such that the driven roller 20 segments close to the centerline O are on the downstream side of the sheet feed direction and the driven roller 20 segments far from the centerline O are on the upstream side (refer to FIG. 5A ).
- the support shafts 30 are supported in guide grooves 31, which are open upwardly in the case portion 11, so as to be movable vertically ( FIG. 5B ).
- the support shafts 30 are urged by urging members 33, such as coil springs, plate springs, and elastic members made from rubber, mounted in recessed receiving portions 32 formed adjacent each of the guide grooves 31 so that the driven roller 20 segments are pressed against the drive roller 19 segments ( FIG. 5C ).
- the guide grooves 31 that support the respective support shafts 30 are formed as pairs and at positions out of alignment such that the inner guide grooves 31 (disposed on a side close to the centerline O) are, with respect to the drive shaft 29, on the downstream side of the sheet feed direction and outer guide grooves 31 (disposed distant from the centerline O) are, with respect to the drive shaft 29, on the upstream side of the sheet feed direction.
- the support shafts 30 are inclined at the angle of q degrees.
- a leading edge P1 of the document P which is conveyed from the upstream side of the sheet feed direction, first collides against nip portions N1, N 1 between the drive roller 19 segments and the driven roller 20 segments.
- the nip portions N1, N 1 are closest to the upstream side in the sheet feed direction ( FIG. 6 ), of the driven roller 20 segments which are arranged on a slant, and contact the leading edge P1 of the document P substantially at points, so that impact is minute.
- the drive roller 19 segments may be combined into one or two roller segments that are continuously long in the Y-axis direction, and the plurality of segments of the driven roller 20 may be arranged to press the one or two rollers at intervals.
- the urging members 33 may be provided for each segment of the driven roller 20 to urge the segments individually.
- the axis 20a of one segment of the driven roller 20 only may be disposed on a slant toward the upstream or downstream side of the sheet feed direction in keeping with the concept of the embodiment.
- the urging members 33 that urge the driven roller 20 segments into contact with the drive roller 19, are provided on each axis 20a disposed symmetrically with respect to the center of the width of the document, the number of locations of the urging members 33 is decreased and, thus, costs can be reduced.
- the direction of the sheet (the document P) may be changed in a path from the reading point 23a to just before the nip portion between the ejection rollers 19, 20 such that the sheet can be substantially parallel to the glass plate 4, and then the leading edge P1 may be inserted into the nip portion.
- the impact at the nip portion can be reduced, thereby preventing the document P, being fed, from deflecting at the reading point 23a.
- the invention may be applied to not only an auto sheet feeder but also to a sheet ejection part located on a downstream side from a device that feeds sheets (documents P) one by one and executes reading while conveying.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Facsimiles In General (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003070679 | 2003-03-14 | ||
JP2003070679A JP3959638B2 (ja) | 2003-03-14 | 2003-03-14 | 画像読取り装置における用紙搬送装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1457445A2 EP1457445A2 (en) | 2004-09-15 |
EP1457445A3 EP1457445A3 (en) | 2007-11-28 |
EP1457445B1 true EP1457445B1 (en) | 2012-01-18 |
Family
ID=32767995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04251424A Expired - Fee Related EP1457445B1 (en) | 2003-03-14 | 2004-03-11 | Sheet feeder in image reading apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US20040178571A1 (zh) |
EP (1) | EP1457445B1 (zh) |
JP (1) | JP3959638B2 (zh) |
CN (2) | CN2795166Y (zh) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7401915B2 (en) | 2004-07-28 | 2008-07-22 | Brother Kogyo Kabushiki Kaisha | Image-recording apparatus |
JP4385941B2 (ja) * | 2004-12-22 | 2009-12-16 | ブラザー工業株式会社 | 画像記録装置 |
JP4393959B2 (ja) * | 2004-09-21 | 2010-01-06 | シャープ株式会社 | 画像読取装置 |
TWM303115U (en) * | 2006-05-05 | 2006-12-21 | Lite On Technology Corp | Idler roller mounting mechanism for paper feeding apparatus |
JP5063407B2 (ja) * | 2008-02-26 | 2012-10-31 | 株式会社リコー | 用紙搬送機構、画像読取装置、及び画像形成装置 |
JP2010052852A (ja) * | 2008-08-26 | 2010-03-11 | Kyocera Mita Corp | 原稿搬送装置および画像形成装置 |
WO2010087218A1 (ja) * | 2009-01-28 | 2010-08-05 | 富士電機ホールディングス株式会社 | 可撓性基板の位置制御装置 |
JP5765890B2 (ja) * | 2010-04-14 | 2015-08-19 | キヤノン株式会社 | シート搬送装置及び画像形成装置 |
US9144965B2 (en) * | 2010-04-29 | 2015-09-29 | Hewlett-Packard Industrial Printing Ltd. | Print arrangement |
JP2012076830A (ja) | 2010-09-30 | 2012-04-19 | Brother Industries Ltd | 画像読取装置 |
JP5677024B2 (ja) * | 2010-10-22 | 2015-02-25 | キヤノン株式会社 | シート搬送装置およびプリント装置 |
JP5372042B2 (ja) * | 2011-02-14 | 2013-12-18 | キヤノン株式会社 | シート搬送装置およびプリント装置 |
JP5796977B2 (ja) * | 2011-03-24 | 2015-10-21 | キヤノン株式会社 | シート搬送装置及び画像形成装置 |
KR101439186B1 (ko) * | 2011-11-09 | 2014-09-12 | 교세라 도큐멘트 솔루션즈 가부시키가이샤 | 원고 반송부를 구비한 화상 형성 장치 |
JP6323381B2 (ja) * | 2015-04-03 | 2018-05-16 | 京セラドキュメントソリューションズ株式会社 | シート搬送装置、及びシート搬送装置を備える画像形成装置 |
JP6682226B2 (ja) | 2015-10-02 | 2020-04-15 | キヤノン株式会社 | 画像形成装置 |
JP6531671B2 (ja) * | 2016-02-25 | 2019-06-19 | ブラザー工業株式会社 | シート搬送装置 |
CN114616200A (zh) * | 2019-10-25 | 2022-06-10 | 惠普发展公司,有限责任合伙企业 | 歪斜检测 |
JP2022018312A (ja) * | 2020-07-15 | 2022-01-27 | 富士フイルムビジネスイノベーション株式会社 | 記録材搬送装置および画像読取装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0919878A2 (en) * | 1997-11-27 | 1999-06-02 | Canon Kabushiki Kaisha | Image forming apparatus |
JP2001310857A (ja) * | 2000-04-28 | 2001-11-06 | Pfu Ltd | 用紙排出機構 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3666262A (en) * | 1970-09-28 | 1972-05-30 | Ibm | Magnetic card transport |
US4767114A (en) * | 1985-07-30 | 1988-08-30 | Kabushiki Kaisha Toshiba | Sheet feeder |
US4780767A (en) * | 1985-10-17 | 1988-10-25 | Fuji Photo Film Co., Ltd. | Sheet feed mechanism and method of controlling the same in light beam scanning apparatus |
JPS6464934A (en) * | 1987-09-02 | 1989-03-10 | Nec Corp | Automatic paper feed device |
JPH0351242A (ja) * | 1989-07-20 | 1991-03-05 | Fujitsu General Ltd | ファクシミリの紙送り装置 |
JP3051242B2 (ja) * | 1991-12-03 | 2000-06-12 | 古野電気株式会社 | 海底表示を行う水中状況探知装置 |
JP2694839B2 (ja) * | 1993-07-20 | 1997-12-24 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 用紙搬送ローラー |
JP3347858B2 (ja) * | 1994-01-26 | 2002-11-20 | 株式会社リコー | 原稿搬送装置およびそれを搭載した原稿読取装置 |
US5494271A (en) * | 1994-06-10 | 1996-02-27 | Umax Data Systems Inc. | Transmission system for a document feeder |
JP2563759B2 (ja) * | 1994-07-06 | 1996-12-18 | 松下電器産業株式会社 | シート部材送り装置 |
JP3278341B2 (ja) * | 1996-01-09 | 2002-04-30 | キヤノン株式会社 | ロ−ラ支持装置、シ−ト材給送装置及び原稿読取装置並びに画像記録装置 |
US6073927A (en) * | 1997-01-17 | 2000-06-13 | Mita Industrial Co., Ltd. | Automatic document feeder |
JP3710636B2 (ja) * | 1998-12-17 | 2005-10-26 | 株式会社リコー | 自動原稿送り装置 |
JP3742296B2 (ja) * | 2000-12-19 | 2006-02-01 | ニスカ株式会社 | シート給紙装置 |
JP2003160259A (ja) * | 2001-11-21 | 2003-06-03 | Fuji Xerox Co Ltd | シート搬送装置及びこれを用いた画像形成装置 |
JP3943942B2 (ja) * | 2002-01-31 | 2007-07-11 | キヤノン株式会社 | 原稿搬送装置及び画像読取装置及び画像形成装置 |
JP2005001827A (ja) * | 2003-06-12 | 2005-01-06 | Nisca Corp | シート搬送装置及びこれを備えた画像読取装置 |
-
2003
- 2003-03-14 JP JP2003070679A patent/JP3959638B2/ja not_active Expired - Fee Related
-
2004
- 2004-03-11 US US10/797,149 patent/US20040178571A1/en not_active Abandoned
- 2004-03-11 EP EP04251424A patent/EP1457445B1/en not_active Expired - Fee Related
- 2004-03-12 CN CNU2004200064043U patent/CN2795166Y/zh not_active Expired - Lifetime
- 2004-03-12 CN CNB2004100285002A patent/CN1325349C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0919878A2 (en) * | 1997-11-27 | 1999-06-02 | Canon Kabushiki Kaisha | Image forming apparatus |
JP2001310857A (ja) * | 2000-04-28 | 2001-11-06 | Pfu Ltd | 用紙排出機構 |
Also Published As
Publication number | Publication date |
---|---|
JP3959638B2 (ja) | 2007-08-15 |
CN1530306A (zh) | 2004-09-22 |
CN2795166Y (zh) | 2006-07-12 |
EP1457445A3 (en) | 2007-11-28 |
CN1325349C (zh) | 2007-07-11 |
US20040178571A1 (en) | 2004-09-16 |
EP1457445A2 (en) | 2004-09-15 |
JP2004277089A (ja) | 2004-10-07 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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