JPH02297902A - Resistance material for variable resistor - Google Patents
Resistance material for variable resistorInfo
- Publication number
- JPH02297902A JPH02297902A JP11832589A JP11832589A JPH02297902A JP H02297902 A JPH02297902 A JP H02297902A JP 11832589 A JP11832589 A JP 11832589A JP 11832589 A JP11832589 A JP 11832589A JP H02297902 A JPH02297902 A JP H02297902A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- contact
- electrode
- variable resistor
- overlapping portion
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 2
- 241000016649 Copaifera officinalis Species 0.000 description 1
- 239000004859 Copal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
Landscapes
- Adjustable Resistors (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は可変抵抗器の抵抗体に関する。更に詳説すれ
ば、抵抗体の電極パターンとのオーパーラ−、プ部分（
以下単に重合部分ともいう）の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a resistor of a variable resistor. To explain in more detail, the opening and closing portions of the resistor and the electrode pattern (
(hereinafter also simply referred to as a polymerization part).
（従来の技術）
従来例の可変抵抗器は、はぼ二種類に区分される。１つ
は単回転型といわれるもので、第５図（ａ）、第６図（
ａ）に図示され、他の１つは多回転型といわれるもので
第５図（ｂ）、第６図（ｂ）に図示されるものである。(Prior Art) Conventional variable resistors are classified into two types. One is the so-called single rotation type, as shown in Figures 5 (a) and 6 (
The other one is a so-called multi-rotation type and is shown in FIG. 5(b) and FIG. 6(b).
単回転型について説明すれば、ケース２４内にロータ２
５と共に収納された絶縁基板９の上面に馬蹄形抵抗体８
を印刷、焼成され、電極部１２ａ、１２ａは前記抵抗体
８とオーバーラツプ（重合）するように又電極部１２ｂ
は馬蹄形抵抗体８の中心にそれぞれ印刷焼成されている
。前記電極部１２ａ、１２ａ。To explain the single rotation type, there is a rotor 2 inside the case 24.
A horseshoe-shaped resistor 8 is mounted on the upper surface of an insulating substrate 9 housed together with 5.
is printed and fired, and the electrode portions 12a and 12a overlap (polymerize) with the resistor 8, and the electrode portion 12b is printed and fired.
are printed and fired at the center of the horseshoe-shaped resistor 8, respectively. The electrode parts 12a, 12a.
１２ｂに穿設した複数の孔部２７にはそれぞれピン端子
２６が接続される。又図示してないが、接点を具えたス
ライダが前記抵抗体８上を摺動することにより、いわゆ
る接触抵抗変化を取り出すことができる。A pin terminal 26 is connected to each of the plurality of holes 27 formed in the hole 12b. Also, although not shown, by sliding a slider equipped with a contact on the resistor 8, a so-called contact resistance change can be detected.
次に多回転型可変抵抗器について説明する。Next, the multi-rotation type variable resistor will be explained.
第５図（ｂ）、第６図（ｂ）において、ケース２８内に
シャフト２９を回転自在に収納し、シャフト２９の下方
に配設した絶縁基板１５の面に直線型抵抗体１６を印刷
焼成し、この抵抗体１６と端部がオーバーラツプ（重合
）１４するように電極部１８ａ、１８ａを、又抵抗体１
６と並列に、電極部１８ｂを絶縁基板１５にそれぞれ印
刷焼成する。5(b) and 6(b), a shaft 29 is rotatably housed in a case 28, and a linear resistor 16 is printed and fired on the surface of an insulating substrate 15 disposed below the shaft 29. Then, the electrode portions 18a, 18a are connected to the resistor 1 so that the ends thereof overlap (overlap) 14 with the resistor 16.
6, the electrode portions 18b are printed and fired on the insulating substrate 15, respectively.
電極部１８ａ、１８ａ、１８ｂにそれぞれ突設した孔３
２にはピン端子群３０をそれぞれ接続する。Holes 3 protruding from the electrode portions 18a, 18a, and 18b, respectively.
2 are connected to pin terminal groups 30, respectively.
この多回転型可変抵抗器においても、単回転型可変抵抗
器と同様スライダ２０の接点２２が抵抗体１６上誉摺動
する際の接触抵抗変化を取り出すものである（第４図）
。In this multi-rotation type variable resistor as well, the change in contact resistance when the contact 22 of the slider 20 slides on the resistor 16 is extracted as in the single-rotation type variable resistor (Fig. 4).
.
（発明が解決しようとする課題）
前記従来例の可変抵抗器の抵抗体においては、以下説明
する様な問題点があった。(Problems to be Solved by the Invention) The resistor of the conventional variable resistor has the following problems.
例えば第３図（ａ）に図示する単回転型可変抵抗器の馬
蹄形抵抗体８の場合には、抵抗体８の終端部と電極部１
２ａとの重合部分１０は、中心Ｏよりある一定の角度例
えば０３を形成するようにオーバーラツプしている。又
第３図（ｂ）においては、直線型抵抗体１６と電極部１
８とが重合部分１４で直角にオーバーラツプしている。For example, in the case of the horseshoe-shaped resistor 8 of the single-turn variable resistor shown in FIG. 3(a), the terminal end of the resistor 8 and the electrode part 1
The overlapping portion 10 with 2a overlaps so as to form a certain angle, for example 03, from the center O. In addition, in FIG. 3(b), the linear resistor 16 and the electrode part 1
8 overlap at right angles at an overlapping portion 14.
次に接点がこの直線抵抗体１６上を摺動している状態を
第４図に図示する。抵抗体１６と電極１８との重合部分
１４では、電極１８の厚膜の上に抵抗体１６がまたがっ
ているのでその膜厚の分布が極端に変化する。Next, FIG. 4 shows a state in which the contact is sliding on this linear resistor 16. At the overlapping portion 14 between the resistor 16 and the electrode 18, the resistor 16 straddles the thick film of the electrode 18, so the distribution of the film thickness changes drastically.
今、第３図（ａ）、（ｂ）、第４図において、抵抗体８
．１６の電極部１２ａ、１８とオーバーラツプしていな
い部分をＣとし、オーバーラツプ部の始点をＢ、終点を
Ａとして、可変抵抗器の接触抵抗値の変化について説明
する。Now, in FIGS. 3(a), (b) and 4, the resistor 8
．． The change in the contact resistance value of the variable resistor will be explained by assuming that the portion that does not overlap with the 16 electrode portions 12a and 18 is C, the starting point of the overlapping portion is B, and the ending point is A.
多回転型可変抵抗器の重合部分１４をスライダ２０の接
点２２が摺動した場合には、第８図に示す様に、接点２
２と電極１Ｂとの間の接触抵抗値が、抵抗体１６と電極
１Ｂとの重合部分１４の終端Ａ点において極端に増加し
てしまう現象が発生する。これは次の理由による。すな
わち、従来の抵抗体のＲｕＯ２系厚膜ペーストと電極部
Ａｇ系ペーストが重合した場合その重合部に於ては、抵
抗体中へ電極のＡｇ系ペーストが移行している現象が発
生する。When the contact 22 of the slider 20 slides on the overlapping portion 14 of the multi-rotation variable resistor, the contact 2
A phenomenon occurs in which the contact resistance value between the resistor 16 and the electrode 1B increases extremely at the terminal point A of the overlapping portion 14 of the resistor 16 and the electrode 1B. This is due to the following reason. That is, when the RuO2-based thick film paste of the conventional resistor and the electrode part Ag-based paste overlap, a phenomenon occurs in which the Ag-based paste of the electrode migrates into the resistor at the overlapping part.
従って電極体のガラス分が、抵抗体と電極部の重合部の
終端部例えば第３図（ａ）、（ｂ）のＡ点にて認められ
る。この部分がいわゆるガラスリッチの状態となり、ス
ライダの接点との電気的接触抵抗が増加し、その結果第
８図に図示の様な特性が発生するという問題があった。Therefore, the glass portion of the electrode body is observed at the terminal end of the overlapping portion of the resistor and the electrode portion, for example, at point A in FIGS. 3(a) and 3(b). This part becomes a so-called glass-rich state, and the electrical contact resistance with the contact point of the slider increases, resulting in the problem that the characteristics shown in FIG. 8 occur.
（課題を解決するための手段）
本発明は、前記問題点を改善して、これを解決すること
を目的とするもので、この目的を達成するため、可変抵
抗器の抵抗体の端部と電極板との重合部分において、抵
抗体の端部の形状を、接点の摺動方向と直角な方向に対
して、所定角度の傾きをもつ様に形成したものである。(Means for Solving the Problems) The present invention aims to improve and solve the above-mentioned problems, and in order to achieve this purpose, it is possible to In the overlapping portion with the electrode plate, the end portion of the resistor is formed to have an inclination at a predetermined angle with respect to a direction perpendicular to the sliding direction of the contact.
（作 用）
本発明によれば、抵抗体と電極との重合部分に於て、抵
抗体の終端をスライダ接点の摺動方向と直角な方向に対
して所定の傾きを形成したもので。(Function) According to the present invention, at the overlapping portion of the resistor and the electrode, the terminal end of the resistor is formed at a predetermined inclination with respect to the direction perpendicular to the sliding direction of the slider contact.
接点がこの重合部分を通過する場合には、接点と電極及
び抵抗体間との接触抵抗値を緩やかに変化させる事が出
来る。When the contact passes through this overlapping portion, the contact resistance value between the contact, the electrode, and the resistor can be gradually changed.
以下本発明の実施例の添付図面を用いて上記現象を説明
する。The above phenomenon will be explained below with reference to the accompanying drawings of embodiments of the present invention.
５４２図は、接点が抵抗体及び電極の重合部分を通過し
ている時の状態を図示するが、接点５がＸ′方向へ移動
する際には抵抗値が低い電極３の部分と、さらに抵抗体
４よりわずかに小さくかつ電極３より多少大きい抵抗値
を有する０重合部分との両方にまたがって接点５が当接
している。ところが、抵抗体４の終端を斜めに形成した
場合には接点５をＸ′方向へ移動させると徐々に抵抗体
４との接触面が減少しさらに電極３と接触面が増加する
ので、電極３と接点５間での接触抵抗値が緩やかな変化
をもたらすものである。Figure 542 illustrates the state when the contact passes through the overlapping part of the resistor and the electrode, but when the contact 5 moves in the The contact point 5 is in contact with the zero-overlapping portion, which is slightly smaller than the body 4 and has a resistance value slightly larger than the electrode 3. However, when the terminal end of the resistor 4 is formed obliquely, moving the contact 5 in the X' direction gradually reduces the contact surface with the resistor 4 and further increases the contact surface with the electrode 3. The contact resistance value between the contact point 5 and the contact point 5 changes gradually.
（実施例） 以下添付図面を参照して本発明の詳細な説明する。(Example) The present invention will be described in detail below with reference to the accompanying drawings.
第１図（ａ）、（ｂ）は本発明の第１及び第２実施例で
ある。（ａ）は、第１の実施例で、抵抗体が馬蹄形の場
合、（ｂ）は第２の実施例で抵抗体が直線形の場合を示
す、同図で符号１．４は抵抗体、２．３は電極、Ａ、Ｂ
、Ｃは接触抵抗値の測定ポイントを示す、以下実施例に
ついて述べる。FIGS. 1(a) and 1(b) show first and second embodiments of the present invention. (a) shows the first embodiment in which the resistor has a horseshoe shape, and (b) shows the second embodiment in which the resistor is linear. In the figure, reference numeral 1.4 indicates the resistor; 2.3 are electrodes, A, B
, C indicates the measurement point of the contact resistance value. Examples will be described below.
（１）第１の実施例：抵抗体ｌを馬蹄形とした単回転型
可変抵抗器である。この場合抵抗体１の内径の半径をＲ
２、外径の半径をＲ１とすると電極２との重合部分に於
て、抵抗体ｌの終端の形状を電極３と抵抗体１の外径Ｒ
１と角度θ０でオーバーラツプさせる。さらに抵抗体１
の外径の半径Ｒ１から角度θ１だけ角度が短くなる様に
抵抗体１の内径の半径Ｒ２を設定する。この第１の実施
例において抵抗体ｌの外径の半径Ｒ１が１．５５ ｍ
ｍ、内径の半径Ｒ２が１．０ｍｍの時、角度θ０．０１
の最適値はそれぞれθＧ＝１００、θ１＝５°であった
。(1) First embodiment: This is a single-rotation variable resistor in which the resistor l is shaped like a horseshoe. In this case, the radius of the inner diameter of resistor 1 is R
2. If the radius of the outer diameter is R1, the shape of the terminal end of the resistor l at the overlapped part with the electrode 2 is the outer diameter R of the electrode 3 and the resistor 1.
1 and the angle θ0. Furthermore, resistor 1
The radius R2 of the inner diameter of the resistor 1 is set so that the angle θ1 is shorter than the radius R1 of the outer diameter of the resistor 1. In this first embodiment, the radius R1 of the outer diameter of the resistor l is 1.55 m.
m, when the radius R2 of the inner diameter is 1.0 mm, the angle θ0.01
The optimum values of were θG=100 and θ1=5°, respectively.
（２）第２の実施例：第１図（ｂ）に示す様な抵抗体４
を直線形とした多回転型可変抵抗器である。(2) Second embodiment: resistor 4 as shown in FIG. 1(b)
This is a multi-rotation type variable resistor with a linear type.
この場合には、抵抗体４の終端と電極３との重合部分を
、抵抗体４の終端を抵抗体４の幅方向に対し角度θ２だ
け傾けた形状としたものである。この第２の実施例にお
いて、抵抗体４の幅寸法Ｗが０．８ｍｍの場合の抵抗体
４の終端の重合部分の角度θ２の最適値は約５〜１００
であった。In this case, the overlapping portion of the end of the resistor 4 and the electrode 3 is shaped such that the end of the resistor 4 is inclined by an angle θ2 with respect to the width direction of the resistor 4. In this second embodiment, when the width dimension W of the resistor 4 is 0.8 mm, the optimum value of the angle θ2 of the overlapping portion at the end of the resistor 4 is about 5 to 100.
Met.
以上の様に構成してなるものであるから、接点を摺動さ
せ、電極と接点間との接触抵抗値を測定すると、第７図
に示す様に重合部分の接触抵抗値が緩やかに変化する。Since it is constructed as described above, when the contact is slid and the contact resistance between the electrode and the contact is measured, the contact resistance of the overlapped portion changes gradually as shown in Figure 7. .
従来例の接触抵抗値を示す第８図の場合と比較すれば、
電極との重合部分Ａ点での接触抵抗値の急激な変化を防
止するものである。If we compare it with the case of Fig. 8 which shows the contact resistance value of the conventional example,
This prevents a sudden change in the contact resistance value at point A of the overlapped portion with the electrode.
（発明の効果）
以上詳細に説明した様に、本発明によれば、抵抗体と電
極との重合部分において抵抗体の終端を接点の摺動方向
と直角な方向にわずかに傾けた事により抵抗体と電極と
の重合部分をスライダの接点が摺動する際、接点と電極
間の接触抵抗値の急激な変化を防止する事ができる。(Effects of the Invention) As explained in detail above, according to the present invention, the terminal end of the resistor is slightly tilted in the direction perpendicular to the sliding direction of the contact at the overlapping part of the resistor and the electrode, so that the resistance is increased. When the contact of the slider slides on the overlapping portion of the body and the electrode, it is possible to prevent a sudden change in the contact resistance value between the contact and the electrode.
従って従来、可変抵抗器で問題となった終端付近での設
定性の問題が解消できる。更に低抵抗値を有する可変抵
抗器の場合には、特にこの重合部分の接触抵抗値の不連
続性が問題であったが１本発明の構成の抵抗体を採用す
ることにより、不連続性の技術的改善が可能となった。Therefore, the problem of setting properties near the terminal end, which has been a problem with conventional variable resistors, can be solved. Furthermore, in the case of a variable resistor having a low resistance value, discontinuity in the contact resistance value particularly at this overlapped portion has been a problem, but by adopting the resistor having the structure of the present invention, the discontinuity can be solved. Technical improvements became possible.
第１図及び第２図は、それぞれ本発明の第１、第２の実
施例を図示する。ｆＦＳｉ図（ａ）は、第１の実施例の
路線平面図、第１図（ｂ）は、第２の実施例の路線平面
図、第２図は本発明の第２実施例を説明するための拡大
平面図、第３図（ａ）。
（ｂ）は従来例の可変抵抗器の路線平面図、第４図は第
３図（ｂ）の側面図、第５図（ａ） 、 （ｂ）は
従来例の可変抵抗器の外観斜視図、第６図（ａ）。
（ｂ）はそれぞれ第５図（ａ）、（ｂ）の可変抵抗器に
収納した絶縁基板の平面図、第７図、第８図、第９図は
接触抵抗値変化を示すグラフで、第７図は理想的特性の
もの、第８図は従来例のもの第９図は本発明の実施例の
ものを示す。
Ａ・・・抵抗体の終端、１・・・抵抗体、２．３・・・
電極、４・・・抵抗体、５・・・接点。
出 願 人 コパル電子株式会社代理人 弁理士
小 林 榮第１図
第２図
第３図
第４図
１％５ 図
第６図
第７図
Ａ点記 ０点。
第 ８ 図
第９図
節、８点 Ｃ若・1 and 2 illustrate first and second embodiments of the invention, respectively. fFSi diagram (a) is a route plan view of the first embodiment, FIG. 1(b) is a route plan view of the second embodiment, and FIG. 2 is for explaining the second embodiment of the present invention. An enlarged plan view of FIG. 3(a). (b) is a line plan view of a conventional variable resistor, Fig. 4 is a side view of Fig. 3 (b), and Figs. 5 (a) and (b) are external perspective views of a conventional variable resistor. , FIG. 6(a). (b) is a plan view of the insulating substrate housed in the variable resistor of FIGS. 5(a) and (b), respectively; FIGS. 7, 8, and 9 are graphs showing changes in contact resistance; 7 shows ideal characteristics, FIG. 8 shows a conventional example, and FIG. 9 shows an example of the present invention. A... Termination of resistor, 1... Resistor, 2.3...
Electrode, 4...Resistor, 5...Contact. Applicant Copal Electronics Co., Ltd. Agent Patent Attorney Sakae Kobayashi Figure 1 Figure 2 Figure 3 Figure 4 Figure 4 1% 5 Figure 6 Figure 7 A marked 0 points. Figure 8 Figure 9 Section, 8 points C Young
Claims (3)
との重合部分において、抵抗体の端部の形状を、接点の
摺動方向と直角な方向に対し所定角度の傾斜を有するよ
うに形成してなる可変抵抗器の抵抗体。1. At the overlapping part of the linear resistor of the multi-rotation variable resistor and the electrode plate, the end of the resistor is shaped so that it has an inclination of a predetermined angle with respect to the direction perpendicular to the sliding direction of the contact. The resistance element of a variable resistor is formed by
との重合部分において、抵抗体端部の形状を、接点の摺
動方向と直角な方向に対し所定角度の傾斜を有するよう
に形成してなる可変抵抗器の抵抗体。2. At the overlapping portion of the horseshoe-shaped resistor of the single-rotation variable resistor and the electrode plate, the shape of the resistor end is formed to have an inclination of a predetermined angle with respect to a direction perpendicular to the sliding direction of the contact. The resistance element of a variable resistor.
の端部の形状を、馬蹄形抵抗体の中心を通る直線に対し
、所定角度の傾斜を有するように形成してなる請求項２
記載の可変抵抗器の抵抗体。3. Claim 2, wherein the shape of the end of the resistor at the overlapping portion of the horseshoe-shaped resistor and the electrode plate is formed to have an inclination of a predetermined angle with respect to a straight line passing through the center of the horseshoe-shaped resistor.
Resistor of the variable resistor described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1118325A JPH0624162B2 (en) | 1989-05-11 | 1989-05-11 | Variable resistor resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1118325A JPH0624162B2 (en) | 1989-05-11 | 1989-05-11 | Variable resistor resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02297902A true JPH02297902A (en) | 1990-12-10 |
| JPH0624162B2 JPH0624162B2 (en) | 1994-03-30 |
Family
ID=14733879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1118325A Expired - Lifetime JPH0624162B2 (en) | 1989-05-11 | 1989-05-11 | Variable resistor resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624162B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5486407A (en) * | 1993-06-08 | 1996-01-23 | General Electric Co. | High rubber backing multi-layer ABS system which exhibits improved chemical resistance to HCFC blowing agents |
| WO2006039850A1 (en) * | 2004-10-13 | 2006-04-20 | Yuejun Yan | Variable attenuator |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS41742Y1 (en) * | 1964-07-22 | 1966-01-26 | ||
| JPS4817730U (en) * | 1971-07-08 | 1973-02-28 | ||
| JPS50133449A (en) * | 1974-04-10 | 1975-10-22 | ||
| JPS5438846U (en) * | 1977-08-22 | 1979-03-14 | ||
| JPS56153702A (en) * | 1980-04-30 | 1981-11-27 | Matsushita Electric Ind Co Ltd | Glazed resistor |
| JPS5775705U (en) * | 1980-10-29 | 1982-05-11 | ||
| JPS58257U (en) * | 1981-06-25 | 1983-01-05 | 松下精工株式会社 | Inlet and outlet pipe structure of solar heat collector plate |
| JPS5814042A (en) * | 1981-07-17 | 1983-01-26 | Matsushita Electric Ind Co Ltd | Detector |
| JPS6035206U (en) * | 1983-08-19 | 1985-03-11 | 富士ゼロックス株式会社 | Original size detection device |
| JPS6113903U (en) * | 1984-06-29 | 1986-01-27 | アルプス電気株式会社 | variable resistor |
| JPS6242205U (en) * | 1985-08-31 | 1987-03-13 | ||
| JPS62250603A (en) * | 1986-04-23 | 1987-10-31 | 松下電器産業株式会社 | Manufacture of thick film resistor |
| JPS63137403A (en) * | 1986-11-25 | 1988-06-09 | ナバラ デ コンポネンテス エレクトロニコス ソシエテ アノニム （ナセサ） | Potentiometer |
-
1989
- 1989-05-11 JP JP1118325A patent/JPH0624162B2/en not_active Expired - Lifetime
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS41742Y1 (en) * | 1964-07-22 | 1966-01-26 | ||
| JPS4817730U (en) * | 1971-07-08 | 1973-02-28 | ||
| JPS50133449A (en) * | 1974-04-10 | 1975-10-22 | ||
| JPS5438846U (en) * | 1977-08-22 | 1979-03-14 | ||
| JPS56153702A (en) * | 1980-04-30 | 1981-11-27 | Matsushita Electric Ind Co Ltd | Glazed resistor |
| JPS5775705U (en) * | 1980-10-29 | 1982-05-11 | ||
| JPS58257U (en) * | 1981-06-25 | 1983-01-05 | 松下精工株式会社 | Inlet and outlet pipe structure of solar heat collector plate |
| JPS5814042A (en) * | 1981-07-17 | 1983-01-26 | Matsushita Electric Ind Co Ltd | Detector |
| JPS6035206U (en) * | 1983-08-19 | 1985-03-11 | 富士ゼロックス株式会社 | Original size detection device |
| JPS6113903U (en) * | 1984-06-29 | 1986-01-27 | アルプス電気株式会社 | variable resistor |
| JPS6242205U (en) * | 1985-08-31 | 1987-03-13 | ||
| JPS62250603A (en) * | 1986-04-23 | 1987-10-31 | 松下電器産業株式会社 | Manufacture of thick film resistor |
| JPS63137403A (en) * | 1986-11-25 | 1988-06-09 | ナバラ デ コンポネンテス エレクトロニコス ソシエテ アノニム （ナセサ） | Potentiometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5486407A (en) * | 1993-06-08 | 1996-01-23 | General Electric Co. | High rubber backing multi-layer ABS system which exhibits improved chemical resistance to HCFC blowing agents |
| WO2006039850A1 (en) * | 2004-10-13 | 2006-04-20 | Yuejun Yan | Variable attenuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624162B2 (en) | 1994-03-30 |
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