JP2628714B2 - Music control device - Google Patents
Music control deviceInfo
- Publication number
- JP2628714B2 JP2628714B2 JP63238587A JP23858788A JP2628714B2 JP 2628714 B2 JP2628714 B2 JP 2628714B2 JP 63238587 A JP63238587 A JP 63238587A JP 23858788 A JP23858788 A JP 23858788A JP 2628714 B2 JP2628714 B2 JP 2628714B2
- Authority
- JP
- Japan
- Prior art keywords
- pair
- coil spring
- torsion coil
- substrate
- operation rod
- 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
Landscapes
- Electrophonic Musical Instruments (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、楽音のピッチベンド等の効果を連続的に
変化させる楽音制御装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone control device that continuously changes the effect of a musical tone such as pitch bend.
近年、電子オルガン，電子キーボード等の電子楽器が
広く使用されており、音色の多様化はいうまでもなく、
発音した楽音に演奏効果を持たせる機能を付加させると
いう要求が強まってきている。2. Description of the Related Art In recent years, electronic musical instruments such as electronic organs and electronic keyboards have been widely used.
There is an increasing demand for adding a function of giving a performance effect to a pronounced musical tone.
従来、この発音した演奏効果を持たせる付加機能とし
て、一般にピッチベンダと呼ばれる楽音制御装置が用い
られている。このピッチベンダは、ホイールに回転型可
変抵抗器の軸を固定し、このホイールの回転に応じた抵
抗値の変化により、電子キーボード等の電子楽器から発
生した楽音の音程を上下に揺り動かして演奏効果を得る
ものである。Conventionally, a tone control device generally called a pitch bender has been used as an additional function for providing the generated performance effect. This pitch bender fixes the axis of a rotary type variable resistor to the wheel, and changes the resistance value according to the rotation of this wheel, causing the pitch of musical tones generated from an electronic musical instrument such as an electronic keyboard to fluctuate up and down, resulting in a performance effect. Is what you get.
従来この種の楽音制御装置としては、実開昭58−6990
5公報に開示された操作レバー装置がある。Conventionally, as this kind of musical tone control device,
There is an operation lever device disclosed in Japanese Patent Application Laid-Open No. H05-205139.
この操作レバー装置は、可変抵抗器を取り付けた可動
ベースと、この可変抵抗器に取り付けられ可変抵抗器を
回転制御するレバーと、このレバーを操作しレバーを放
したときに、レバーを操作する前の初期位置に戻す復帰
ばねとが設けられている。This operating lever device includes a movable base on which a variable resistor is mounted, a lever mounted on the variable resistor for controlling the rotation of the variable resistor, and when the lever is operated and released, before the lever is operated. And a return spring for returning to the initial position.
この従来例においては、可動ベースに復帰ばねを係止
するためのばね掛けやレバーの最大操作量を規制するた
めのガイドを設け、さらにレバーに可動ベースのガイド
を挿入する溝およびレバーを操作したときに復帰ばねを
弾性変形させるためのばね掛けを設けなければならず、
構造が複雑になり、組立作業に時間がかかるという問題
があった。In this conventional example, a spring hook for locking the return spring to the movable base and a guide for regulating the maximum operation amount of the lever are provided, and furthermore, the groove and the lever for inserting the guide of the movable base into the lever are operated. Sometimes a spring hook to elastically deform the return spring must be provided,
There is a problem that the structure becomes complicated and the assembling operation takes time.
さらに、この従来例は、可変抵抗器にリード線を半田
付けし、他の電子部品等へ配線を行わなければならず組
立作業が複雑であるという問題があった。また、装置が
大きくなるという問題があった。Further, this conventional example has a problem that the lead wire is soldered to the variable resistor and wiring is performed to other electronic components and the like, so that the assembling work is complicated. Further, there is a problem that the device becomes large.
したがって、この発明の目的は、簡単な構造で組立作
業を簡単にでき、しかも装置の小型化を図ることのでき
る楽音制御装置を提供することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a tone control device which can simplify the assembling work with a simple structure and can reduce the size of the device.
請求項（１）の楽音制御装置は、一対の開口とこの一
対の開口部を結ぶ線の片側に取付部を設けた基板と、回
転軸が前記基板に平行でかつ前記一対の開口の中間部ま
で延設されて前記基板の前記取付部に取り付けられた回
転検出器と、前記回転検出器の回転軸に取り付けられた
操作桿と、前記操作桿の回転中心部に取り付けられ一対
の作用腕部を前記基板の前記一対の開口に挿通したねじ
りコイルばねと、前記操作桿に設けられて前記ねじりコ
イルばねの前記一対の作用腕部の外側面に当接した一対
の当接部とを備えている。A musical sound control device according to claim 1, wherein the substrate has a pair of openings and a mounting portion provided on one side of a line connecting the pair of openings, and an intermediate portion having a rotation axis parallel to the substrate and the pair of openings. A rotation detector extending to and attached to the mounting portion of the substrate, an operation rod attached to a rotation shaft of the rotation detector, and a pair of operating arms attached to a rotation center portion of the operation rod. A torsion coil spring inserted through the pair of openings of the substrate, and a pair of abutting portions provided on the operation rod and abutting against outer surfaces of the pair of working arms of the torsion coil spring. I have.
請求項（２）の楽音制御装置は、前記基板をプリント
配線基板としたことを特徴としている。A tone control device according to claim 2 is characterized in that the substrate is a printed wiring board.
請求項（１）の楽音制御装置によれば、ねじりコイル
ばねの一対の作用腕部が基板の一対の開口のそれぞれの
縁部に当接し一定位置に係止され、さらに操作桿がねじ
りコイルばねにより一定姿勢に保持されて操作桿および
回転型検出器の初期位置が決定される。そして、操作桿
を操作したときに、回転型検出器が回転し、操作桿を放
したときに、ねじりコイルばねの付勢力により操作桿が
復帰することになる。また、操作桿を過度に回動操作し
たときは、ねじりコイルばねの作用腕部が開口の他方の
縁部に当り、操作桿の操作量が規制される。According to the tone control device of the present invention, the pair of working arms of the torsion coil spring abut on the respective edges of the pair of openings of the substrate and are locked at a fixed position, and the operating rod is further connected to the torsion coil spring. Thus, the initial positions of the operation rod and the rotary detector are determined while being maintained in a constant posture. Then, when the operation rod is operated, the rotary detector rotates, and when the operation rod is released, the operation rod is returned by the urging force of the torsion coil spring. When the operation rod is excessively rotated, the operating arm of the torsion coil spring hits the other edge of the opening, and the operation amount of the operation rod is restricted.
請求項（２）の楽音制御装置によれば、基板をプリン
ト配線基板としたので、回転型検出器と電子部品とを一
体化することができ、回転型検出器と電子部品との接続
をリード線を用いずに行うことができる。According to the musical sound control device of claim (2), since the substrate is a printed wiring board, the rotary detector and the electronic component can be integrated, and the connection between the rotary detector and the electronic component is lead. This can be done without wires.
〔実施例〕 この発明の楽音制御装置の実施例を第１図ないし第３
図に基づいて説明する。[Embodiment] FIGS. 1 to 3 show an embodiment of a tone control apparatus according to the present invention.
Description will be made based on the drawings.
この楽音制御装置は、第１図および第２図に示すよう
に、基板１と回転型検出器２と操作桿３とねじりコイル
ばね４とからなる。As shown in FIGS. 1 and 2, the tone control device comprises a board 1, a rotary detector 2, an operating rod 3, and a torsion coil spring 4.
基板１は、プリント配線基板からなり、一対の開口5
a,5bとこの開口5a,5bを結ぶ線の片側に取付部６が設け
られている。回転型検出器２は、可変抵抗器，ロータリ
・エンコーダまたはロータリ型多接点スイッチ等からな
り、回転軸2aが基板１に平行でかつ基板１の一対の開口
5a,5bの中間部まで延設され、基板１の取付部６に取り
付けられている。操作桿３は、操作桿３のボス部からな
る回転中心部3cを回転型検出器２の回転軸2aに圧入され
取り付けられている。ねじりコイルばね４は、操作桿の
回転中心部3cに取り付けられ、一対の作用腕部4a,4bを
基板１の一対の開口5a,5bにそれぞれ挿通している。さ
らに、ねじりコイルばね４の一対の作用腕部4a,4bの外
側面が操作桿３の当接部3a,3bと各々当接している。ま
た、操作桿３の回転中心部3cには、ねじりコイルばね４
の抜け止め防止用の爪3dが設けられている。3eはこの爪
3dを形成するための金型の抜き窓を示している。また、
一対の作用腕部4a,4bには、ゴムチューブ等からなる管
状の緩衝部材７がそれぞれ被装されている。8,9および1
0は、それぞれ基板１に装着された抵抗やコンデンサ等
からなる電子部品，配線用コネクタおよび差込ジャック
を示している。The board 1 is made of a printed wiring board and has a pair of openings 5.
A mounting portion 6 is provided on one side of a line connecting the openings 5a and 5b with the openings 5a and 5b. The rotary detector 2 includes a variable resistor, a rotary encoder, a rotary type multi-contact switch, or the like.
It extends to the middle part between 5a and 5b and is attached to the attachment part 6 of the substrate 1. The operation rod 3 is mounted by press-fitting a rotation center portion 3c formed of a boss portion of the operation rod 3 into a rotation shaft 2a of the rotary detector 2. The torsion coil spring 4 is attached to the rotation center 3c of the operation rod, and passes the pair of working arms 4a, 4b through the pair of openings 5a, 5b of the substrate 1, respectively. Further, the outer surfaces of the pair of working arms 4a, 4b of the torsion coil spring 4 are in contact with the contact portions 3a, 3b of the operating rod 3, respectively. A torsion coil spring 4 is provided at the rotation center 3 c of the operation rod 3.
Is provided with a claw 3d for preventing the falling off. 3e this nail
Fig. 7 shows a window of a mold for forming 3d. Also,
A tubular buffer member 7 made of a rubber tube or the like is mounted on each of the pair of working arms 4a and 4b. 8,9 and 1
Numeral 0 indicates electronic components, such as resistors and capacitors, mounted on the substrate 1, wiring connectors, and insertion jacks.
この楽音制御装置は、基板１の一対の開口5a,5bに挿
通されたねじりコイルばね４の一対の作用腕部4a,4bの
それぞれが開口5a,5bの縁部5a′,5b′に当接し、一定位
置に係止される。また、操作桿３の当接部3a,3bがそれ
ぞれねじりコイルばね４の作用腕部4a,4bに当接されて
いるため、操作桿３がねじりコイルばね４により一定姿
勢に保持されることになる。これにより、操作桿３およ
び回転型検出器２の初期位置が決定される。また、操作
桿３の回転中心部3cに取り付けられたねじりコイルばね
４の一対の作用腕部4a,4bがそれぞれ基板１の開口5a,5b
に係止されているため、操作桿３の回転型検出器２の回
転軸2aからの脱落を防止することができる。そして、第
３図に示すように、操作桿３を操作したときに、回転型
検出器２が回転し、ねじりコイルばね４の作用腕部4bが
操作桿３の操作方向に弾性変形する。このとき、ねじり
コイルばね４は、操作桿３の回転中心部3cを絞る方向に
弾性変形し、ねじりコイルばね４が回転中心部3cから抜
け難くなる。操作桿３を放したときに、ねじりコイルば
ね４の付勢力により操作桿３が復帰することになる。こ
のとき、他方の作用腕部4aが基板１の開口5aの縁部5a′
すなわち初期位置に係止されており、またねじりコイル
ばね４の付勢力により戻された作用腕部4bも開口5bの縁
部5b′により形成され、ねじりコイルばね４が初期位置
に戻る。その結果、操作桿３および回転型検出器２も初
期位置に復帰することになる。また操作桿３を過度に回
動操作したときには、作用腕部4bが基板１の開口5bの他
方の縁部5b″に当たり停止し、操作桿３の最大操作量が
規制される。また、操作桿３を逆方向に操作し、操作桿
３を放したときも同様に、操作桿３が初期位置に復帰
し、また操作桿３を過度に回動操作したときも、作用腕
部4aが開口5aの縁部5a″に当たり操作桿３の最大操作量
が規制される。In this tone control device, a pair of working arms 4a, 4b of a torsion coil spring 4 inserted into a pair of openings 5a, 5b of the substrate 1 abut against edges 5a ', 5b' of the openings 5a, 5b. , Locked in a fixed position. Since the contact portions 3a and 3b of the operation rod 3 are in contact with the working arms 4a and 4b of the torsion coil spring 4, respectively, the operation rod 3 is held in a fixed posture by the torsion coil spring 4. Become. Thereby, the initial positions of the operation stick 3 and the rotary detector 2 are determined. Further, a pair of working arms 4a, 4b of the torsion coil spring 4 attached to the rotation center portion 3c of the operation rod 3 are connected to the openings 5a, 5b of the substrate 1, respectively.
, The operating rod 3 can be prevented from falling off the rotary shaft 2a of the rotary detector 2. Then, as shown in FIG. 3, when the operation rod 3 is operated, the rotary detector 2 rotates, and the working arm 4b of the torsion coil spring 4 is elastically deformed in the operation direction of the operation rod 3. At this time, the torsion coil spring 4 is elastically deformed in the direction in which the rotation center 3c of the operation rod 3 is squeezed, so that the torsion coil spring 4 hardly comes off from the rotation center 3c. When the operating rod 3 is released, the operating rod 3 returns due to the urging force of the torsion coil spring 4. At this time, the other working arm 4a is connected to the edge 5a 'of the opening 5a of the substrate 1.
That is, the working arm 4b, which is locked at the initial position and is returned by the urging force of the torsion coil spring 4, is also formed by the edge 5b 'of the opening 5b, and the torsion coil spring 4 returns to the initial position. As a result, the operation stick 3 and the rotary detector 2 also return to the initial positions. When the operation rod 3 is excessively rotated, the operation arm 4b hits the other edge 5b ″ of the opening 5b of the substrate 1 and stops, so that the maximum operation amount of the operation rod 3 is regulated. Similarly, when the operating rod 3 is operated in the reverse direction and the operating rod 3 is released, the operating arm 3a returns to the initial position, and when the operating rod 3 is excessively rotated, the operating arm 4a is opened. And the maximum operation amount of the operation rod 3 is restricted.
このように、この楽音制御装置は、基板１に一対の開
口5a,5bと取付部６とを設け、この取付部６に回転軸2a
が基板１に平行でしかも一対の開口5a,5bの中間部まで
延設させて回転型検出器２を取り付け、この回転型検出
器２に取り付けられた操作桿３のねじりコイルばね４の
一対の作用腕部4a,4bを、基板１の開口5a,5bに挿通し係
止するとともに、操作桿３の一対の当接部3a,3bにそれ
ぞれ当接させるようにしたので、ねじりコイルばね４に
より操作桿３および回転型検出器２を初期位置に自動復
帰させることができ、しかも操作桿３の最大操作量を規
制することができる。したがって、基板１に開口5a,5b
を設けるだけで、ねじりコイルばね４を係止することが
でき、操作桿３の最大操作量を規制することができる。
また、操作桿３にねじりコイルばね４の一対の作用腕部
4a,4bをそれぞれ当接する一対の当接部3a,3bを設けるだ
けで、ねじりコイルばね４を弾性変形させることができ
る。この結果、簡単な構造で装置を完成することがき
る。しかも、操作桿３の回転中心部3cにねじりコイルば
ね４を取り付け、つぎにこの操作桿３の回転中心部3cを
回転型検出器２の回転軸2aに取り付け、そして操作桿３
に取り付けられたねじりコイルばね４の一対の作用腕部
4a,4bを基板１の一対の開口5a,5bにそれぞれ挿通して回
転型検出器２を基板１の取付部６に取り付けるだけで装
置を組み立てることができる。この結果、組立作業を容
易にすることができる。As described above, in the musical sound control device, the substrate 1 is provided with the pair of openings 5a and 5b and the mounting portion 6, and the mounting portion 6 has the rotating shaft 2a
Is parallel to the substrate 1 and extends to an intermediate portion between the pair of openings 5a and 5b, and the rotary detector 2 is attached. The pair of torsion coil springs 4 of the operating rod 3 attached to the rotary detector 2 The working arms 4a, 4b are inserted through the openings 5a, 5b of the board 1 and locked, and are brought into contact with the pair of contact portions 3a, 3b of the operation rod 3, respectively. The operation stick 3 and the rotary detector 2 can be automatically returned to the initial positions, and the maximum operation amount of the operation stick 3 can be restricted. Therefore, the openings 5a, 5b
Is provided, the torsion coil spring 4 can be locked, and the maximum operation amount of the operation rod 3 can be regulated.
A pair of operating arms of a torsion coil spring 4 is attached to the operating rod 3.
The torsion coil spring 4 can be elastically deformed only by providing a pair of abutting portions 3a and 3b respectively abutting the 4a and 4b. As a result, the device can be completed with a simple structure. In addition, the torsion coil spring 4 is attached to the rotation center 3c of the operation rod 3, and then the rotation center 3c of the operation rod 3 is attached to the rotation shaft 2a of the rotary detector 2.
Pair of working arms of the torsion coil spring 4 attached to the
The apparatus can be assembled simply by inserting the rotary detector 2 into the mounting portion 6 of the substrate 1 by inserting the rotary detector 2 into the pair of openings 5a and 5b of the substrate 1 respectively. As a result, the assembling work can be facilitated.
また、この実施例の楽音制御装置においては、基板１
をプリント配線基板としたので、電子部品と一体化する
ことができ、楽音制御装置だけの取付用基板が不要とな
り、配線材を使用せずに回転型検出器２と電子部品等と
の接続を行うことができる。さらに、コネクタ９や差込
ジャック10を併設することができ、他のプリント配線基
板との接続を簡単にすることができる。このように、基
板１をプリント配線基板とすることにより、使用する部
品を必要最少限にすることができ、さらに組立作業を容
易にすることができ、装置の小型化を図ることができ
る。In the tone control device of this embodiment, the substrate 1
Is a printed wiring board, so that it can be integrated with the electronic components, and a mounting board only for the tone control device is not required, and the connection between the rotary detector 2 and the electronic components can be made without using any wiring material. It can be carried out. Further, a connector 9 and a plug-in jack 10 can be provided together, so that connection with another printed wiring board can be simplified. As described above, by using the printed wiring board as the board 1, the number of components to be used can be minimized, the assembling work can be facilitated, and the apparatus can be downsized.
また、ねじりコイルばね４の一対の作用腕部4a,4bの
それぞれに緩衝材７を被装するようにしたので、操作桿
３の操作時に発生する動作音を小さくすることができ
る。しかも、緩衝部材７を管状としたので、作用腕部4
a,4bへの被装も簡単に行うことができる。Further, since the cushioning member 7 is provided on each of the pair of working arms 4a and 4b of the torsion coil spring 4, the operation sound generated when the operation rod 3 is operated can be reduced. Moreover, since the cushioning member 7 is tubular, the working arm 4
It can be easily mounted on a and 4b.
なお、この実施例の楽音制御装置においては、一枚の
基板１に１式の楽音制御装置を装着したが、一枚の基板
１に複数の楽音制御装置を装着することもできる。In the musical tone control device of this embodiment, one set of musical tone control devices is mounted on one substrate 1, but a plurality of musical tone control devices can be mounted on one substrate 1.
また、基板１をプリント配線基板として楽音制御装置
と電子部品とを一枚の基板１に装着するようにしたが、
基板１を組立用基板として楽音制御装置のみを装着する
ようにしてもよい。Further, the tone control device and the electronic components are mounted on one board 1 using the board 1 as a printed wiring board.
The board 1 may be used as an assembly board and only the tone control device may be mounted.
請求項（１）の楽音制御装置は、回転型検出器に取り
付けられた操作桿のねじりコイルばねの一対の作用腕部
を基板の一対の開口にそれぞれ挿通し係止するととも
に、操作桿の一対の当接部にねじりコイルばねの一対の
作用腕部をそれぞれ当接させるようにしたので、ねじり
コイルばねにより操作桿および回転型検出器を初期位置
に自動復帰させることができ、しかも操作桿の最大操作
量を規制することができる。したがって、簡単な構造
で、装置を完成することができ、組立作業を容易にする
ことができる。According to a first aspect of the present invention, a pair of operating arms of a torsion coil spring of an operation rod attached to a rotary detector are inserted into and locked by a pair of openings of a substrate, respectively. The pair of working arms of the torsion coil spring are brought into contact with the abutting portions of the torsion coil spring, respectively, so that the operation rod and the rotary detector can be automatically returned to the initial positions by the torsion coil spring. The maximum operation amount can be regulated. Therefore, the device can be completed with a simple structure, and the assembling work can be facilitated.
請求項（２）の楽音制御装置は、回転型検出器を装着
する基板をプリント配線基板としたので、構成部分をよ
り少なくすることができ、さらに組立作業を容易にし、
装置の小型化を図ることができる。According to the tone control device of the present invention, since the board on which the rotary detector is mounted is a printed circuit board, the number of components can be reduced, and the assembling work is further facilitated.
The size of the device can be reduced.
第１図はこの発明の正面断面図、第２図は第１図の側面
断面図、第３図は第１図の操作桿を操作したときの正面
図である。 １……基板、２……回転型検出器、2a……回転軸、３…
…操作桿、3a,3b……当接部、3c……回転中心部、４…
…ねじりコイルばね、4a,4b……作用腕部、5a,5b……開
口、６……取付部FIG. 1 is a front sectional view of the present invention, FIG. 2 is a side sectional view of FIG. 1, and FIG. 3 is a front view when the operating rod of FIG. 1 is operated. 1 ... substrate, 2 ... rotary detector, 2a ... rotary axis, 3 ...
… Operation rods, 3a, 3b… Abutment part, 3c …… Rotation center part, 4…
... torsion coil spring, 4a, 4b ... working arm, 5a, 5b ... opening, 6 ... mounting part
Claims (2)
側に取付部を設けた基板と、回転軸が前記基板に平行で
かつ前記一対の開口の中間部まで延設されて前記基板の
前記取付部に取り付けられた回転検出器と、前記回転検
出器の回転軸に取り付けられた操作桿と、前記操作桿の
回転中心部に取り付けられ一対の作用腕部を前記基板の
前記一対の開口に挿通したねじりコイルばねと、前記操
作桿に設けられて前記ねじりコイルばねの前記一対の作
用腕部の外側面に当接した一対の当接部とを備えた楽音
制御装置A substrate having a pair of openings and a mounting portion provided on one side of a line connecting the pair of openings; and a substrate having a rotation axis extending parallel to the substrate and extending to an intermediate portion between the pair of openings. A rotation detector attached to the attachment portion, an operation rod attached to a rotation shaft of the rotation detector, and a pair of operating arms attached to a rotation center portion of the operation rod, and A tone control device comprising: a torsion coil spring inserted through an opening; and a pair of abutting portions provided on the operation rod and abutting against outer surfaces of the pair of working arms of the torsion coil spring.
特徴とする請求項（１）記載の楽音制御装置。2. The tone control device according to claim 1, wherein said board is a printed wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63238587A JP2628714B2 (en) | 1988-09-22 | 1988-09-22 | Music control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63238587A JP2628714B2 (en) | 1988-09-22 | 1988-09-22 | Music control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0287196A JPH0287196A (en) | 1990-03-28 |
| JP2628714B2 true JP2628714B2 (en) | 1997-07-09 |
Family
ID=17032419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63238587A Expired - Fee Related JP2628714B2 (en) | 1988-09-22 | 1988-09-22 | Music control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2628714B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6179142B2 (en) * | 2013-03-14 | 2017-08-16 | ヤマハ株式会社 | Support structure for electronic pad for impact |
-
1988
- 1988-09-22 JP JP63238587A patent/JP2628714B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0287196A (en) | 1990-03-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |