JP2003338425A - Manufacturing method of capacitor, and capacitor - Google Patents
Manufacturing method of capacitor, and capacitorInfo
- Publication number
- JP2003338425A JP2003338425A JP2002147413A JP2002147413A JP2003338425A JP 2003338425 A JP2003338425 A JP 2003338425A JP 2002147413 A JP2002147413 A JP 2002147413A JP 2002147413 A JP2002147413 A JP 2002147413A JP 2003338425 A JP2003338425 A JP 2003338425A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- resin
- capacitor element
- electrode portion
- case
- 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
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は脚取り付けタイプの
コンデンサに関するものであり、特にモータ駆動のイン
バータ回路に使用されるコンデンサに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg mounting type capacitor, and more particularly to a capacitor used in a motor drive inverter circuit.
【０００２】[0002]
【従来の技術】従来より、コンデンサはモータ駆動用の
インバータ回路などの駆動系動力に対して平滑を目的と
して使用され、コンデンサ容量の増加とともにインダク
タンスを抑えることが求められている。2. Description of the Related Art Conventionally, a capacitor has been used for the purpose of smoothing drive system power such as an inverter circuit for driving a motor, and it has been required to suppress inductance as the capacitor capacity increases.
【０００３】図３は従来のコンデンサの構成を示す図で
あり、（ａ）は平面図を断面で示した図、（ｂ）は正面
図を断面で示した図である。図３に示すように、従来の
コンデンサは、コンデンサ素子２が単数の小容量タイプ
であり、コンデンサを取り付ける取り付け脚６も単にコ
ンデンサケース１の底面側に取り付けられていた。そし
て、コンデンサケース１上部は開口部（注型面７）にな
っており、コンデンサ素子２を固定させる充填樹脂４を
この開口部（注型面７）から注型し、コンデンサ素子２
を固定していた。また、コンデンサ素子２の電極部５と
を接続した接続金具３は、充填樹脂４を注型する面７か
ら外部に出して外部と接続させていた。3A and 3B are views showing the structure of a conventional capacitor, in which FIG. 3A is a sectional view of a plan view and FIG. 3B is a sectional view of a front view. As shown in FIG. 3, in the conventional capacitor, the capacitor element 2 is a single small-capacity type, and the mounting leg 6 for mounting the capacitor is simply mounted on the bottom surface side of the capacitor case 1. The upper part of the capacitor case 1 has an opening (casting surface 7), and the filling resin 4 for fixing the capacitor element 2 is cast from this opening (casting surface 7) to form the capacitor element 2
Was fixed. Further, the connecting metal fitting 3 connected to the electrode portion 5 of the capacitor element 2 was exposed to the outside from the surface 7 where the filling resin 4 was cast, and was connected to the outside.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記従来
のコンデンサでは、コンデンサケース１の開口部（注型
面７）が取り付け脚６と反対側になっており、接続のた
めに外部に出す必要がある接続金具３は、その開口部
（注型面７）から出されることとなっていた。そして、
外部に出た接続金具３は、使用状況に応じて外部との接
続箇所は変わり、接続箇所が注型面７と反対側の取り付
け脚６側である場合、経路を引き回す必要があるので、
電極部５と外部とを接続する接続金具３をコンデンサケ
ース１の下部まで延長する必要があった。そのためにイ
ンダクタンスが大きくなるという課題が生じていた。特
に、自動車を駆動するモータの駆動用として、大電圧の
インバータ回路の平滑コンデンサとして用いる場合、イ
ンダクタンスが大きいと、数百ヘルツから数十キロヘル
ツの高周波電流のリップルを平滑するのに支障をきたす
ことになった。However, in the above-mentioned conventional capacitor, the opening (casting surface 7) of the capacitor case 1 is on the opposite side of the mounting leg 6, and it is necessary to take it out for connection. The connection fitting 3 was to be taken out from the opening (casting surface 7). And
The connecting metal fitting 3 that has come out to the outside has a different connection position with the outside depending on the usage situation. When the connection position is on the side of the mounting leg 6 opposite to the casting surface 7, it is necessary to route the path.
It was necessary to extend the connection fitting 3 that connects the electrode portion 5 and the outside to the lower portion of the capacitor case 1. Therefore, there has been a problem that the inductance increases. In particular, when used as a smoothing capacitor of a high-voltage inverter circuit for driving a motor that drives an automobile, a large inductance will hinder smoothing of ripples of high-frequency current of several hundreds of hertz to several tens of kilohertz. Became.
【０００５】また、自動車を駆動するモータ駆動用イン
バータ回路に用いる場合のように、コンデンサを大容量
にする必要がある場合、複数個のコンデンサ素子をコン
デンサケースに内蔵する必要が生じることから、接続金
具３を外部接続箇所から遠くにあるコンデンサ素子（図
３（ｂ）で一番左のコンデンサ素子）はインダクタンス
が大きくなり、これを抑える必要があった。さらに、コ
ンデンサを自動車に搭載する場合、省スペースの要求か
ら取り付け高さを制限されることがある。このような場
合、コンデンサケースの取り付け脚と反対側から接続金
具を外部に出すことは、コンデンサ高さが全体として高
くなり、自動車への搭載ができなくなるという課題があ
った。Further, when it is necessary to increase the capacity of a capacitor as in the case of using it for an inverter circuit for driving a motor for driving an automobile, it is necessary to incorporate a plurality of capacitor elements in a capacitor case. The inductance of the capacitor element (the leftmost capacitor element in FIG. 3B) that is far from the external connection point of the metal fitting 3 becomes large, and it is necessary to suppress this. Further, when the capacitor is mounted on an automobile, the mounting height may be limited due to space saving requirements. In such a case, taking the connecting metal fitting out from the side opposite to the mounting leg of the capacitor case raises the height of the capacitor as a whole, which makes it impossible to mount the capacitor on an automobile.
【０００６】本発明は、このような課題を解決するもの
であり、コンデンサの全体高さを高くすることなく、イ
ンダクタンスを抑えるコンデンサを提供するものであ
る。The present invention solves such a problem and provides a capacitor that suppresses inductance without increasing the overall height of the capacitor.
【０００７】[0007]
【課題を解決するための手段】本発明のコンデンサは、
コンデンサ素子を内蔵して内部を樹脂充填し、取り付け
脚を備えるコンデンサケースを有するものであり、上記
課題を解決するために、充填樹脂を注型する面をコンデ
ンサケースの脚取り付け面と同じ側にすると共に、外部
とコンデンサ素子の電極部とを接続する接続金具を、充
填樹脂を注型する面から外部に出すようにしたものであ
る。The capacitor of the present invention comprises:
In order to solve the above-mentioned problems, in order to solve the above-mentioned problems, the surface where the filling resin is cast is on the same side as the leg mounting surface of the capacitor case. At the same time, the connection fitting for connecting the outside and the electrode portion of the capacitor element is brought out from the surface on which the filling resin is cast.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図１を用いて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
【０００９】（実施の形態１）図１において、１は樹脂
製のコンデンサケース、２はコンデンサ素子を示す。３
ａおよび３ｂは一体に連なる接続金具で、３ａはコンデ
ンサケース１に内蔵される部分、３ｂはコンデンサケー
スから外部に出ている部分を示す。４はコンデンサ素子
を固定するエポキシ樹脂などの充填樹脂、５は電極部、
６はコンデンサを外部に取り付けるための取り付け脚、
７は充填樹脂を注型する注型面を示す。(Embodiment 1) In FIG. 1, 1 is a resin capacitor case, and 2 is a capacitor element. Three
Reference numerals a and 3b are connecting metal fittings that are integrally connected, 3a is a portion built in the capacitor case 1, and 3b is a portion protruding from the capacitor case to the outside. 4 is a filling resin such as epoxy resin for fixing the capacitor element, 5 is an electrode portion,
6 is a mounting leg for mounting the capacitor to the outside,
Reference numeral 7 indicates a casting surface on which the filling resin is cast.
【００１０】そして、コンデンサ素子２は、図示しない
金属化フィルムを巻回または積層してなり、電極部５を
端面に設けている。そして接続金具３ａを電極部５に接
続し、この接続金具３ｂ（３ａと一体につながってい
る）を外部機器等と接続することで電極部５と外部機器
等とを電気的に接続している。また、コンデンサケース
１は、コンデンサ素子２全体と、接続金具３ａを内蔵
し、内部に充填樹脂４を充填させて固定している。な
お、図１において、コンデンサケース１の底部（注型面
７）は、樹脂充填する前は開口面であり、この面を、充
填樹脂４を注型する面としている。さらに、この注型面
７から接続金具３ｂがコンデンサケース１から外部に出
ている。The capacitor element 2 is formed by winding or laminating a metallized film (not shown), and the electrode portion 5 is provided on the end surface. The connection fitting 3a is connected to the electrode portion 5, and the connection fitting 3b (which is integrally connected to 3a) is connected to an external device or the like to electrically connect the electrode portion 5 to the external device or the like. . Further, the capacitor case 1 contains the entire capacitor element 2 and the connecting fitting 3a, and is filled with the filling resin 4 and fixed therein. In FIG. 1, the bottom portion (casting surface 7) of the capacitor case 1 is an opening surface before resin filling, and this surface is a surface on which the filling resin 4 is cast. Further, the connection fitting 3b is projected from the capacitor case 1 to the outside through the casting surface 7.
【００１１】また、コンデンサケース１は、図１に示す
様に、取り付け脚６を有しており、外部機器等にビス等
で取り付けできるようになっている。コンデンサケース
１は、コンデンサ素子２を複数個内蔵するためケース自
体が大きく、取り付け脚６はコンデンサ全体の重量およ
び衝撃時の耐用から４箇所設けられ、四方に伸びた形状
となっている。As shown in FIG. 1, the capacitor case 1 has mounting legs 6 so that it can be mounted on an external device or the like with screws or the like. The capacitor case 1 has a large case itself because a plurality of capacitor elements 2 are built therein, and the mounting legs 6 are provided in four positions in consideration of the weight of the entire capacitor and durability against impact, and have a shape extending in all directions.
【００１２】以上のようなコンデンサの製造方法につい
て説明する。A method of manufacturing the above capacitor will be described.
【００１３】まず、複数のコンデンサ素子２の各電極部
５と接続する接続金具３ａを、電極部５に溶接付けもし
くは半田付けして組み付ける。この時、接続金具３ａ
は、電極部５の中で、注型面７に近い箇所（図１（ｂ）
で電極部５の下部）に接続する。これは、電極部５と外
部接続箇所とを接続する接続金具３ａ、３ｂの長さを極
力短くするためである。ここで、接続金具３ａ、３ｂ
は、コンデンサ素子２と接続金具３との組み付け部品を
コンデンサケース１に挿入した時に、コンデンサケース
１の開口部（注型面７）から出るような形状にしてお
く。First, the connection fittings 3a to be connected to the respective electrode parts 5 of the plurality of capacitor elements 2 are assembled by welding or soldering to the electrode parts 5. At this time, the connection fitting 3a
Is a portion of the electrode portion 5 near the casting surface 7 (see FIG. 1 (b)).
To the lower part of the electrode part 5). This is to minimize the length of the connection fittings 3a and 3b that connect the electrode portion 5 and the external connection location. Here, the connection fittings 3a, 3b
Is shaped so as to come out of the opening (casting surface 7) of the capacitor case 1 when the assembled component of the capacitor element 2 and the connection fitting 3 is inserted into the capacitor case 1.
【００１４】さらに、コンデンサケース１に、コンデン
サケース１の開口部（注型面７）からコンデンサ素子２
と接続金具３ａ、３ｂとの組み付け部品を挿入し、コン
デンサケース１の内側に設けているリブで支えて保持し
た後、注型面７から充填樹脂４を注型して固定する。こ
の時、接続金具３ｂは、注型面７から外部に出た状態と
なっている。Further, in the capacitor case 1, the capacitor element 2 is opened from the opening (casting surface 7) of the capacitor case 1.
After the assembled parts of the connection metal fittings 3a and 3b are inserted and supported and held by the ribs provided inside the capacitor case 1, the filling resin 4 is cast from the casting surface 7 and fixed. At this time, the connection fitting 3b is in a state of being projected from the casting surface 7 to the outside.
【００１５】そして、このようにして製造したコンデン
サを、取り付け脚６の取り付け面を外部の取り付け面に
合わせ、図示しないネジ等で外部とを固定する。また、
外部に出た接続金具３ｂは、図に示すように、取り付け
脚６と同じ側で図示しない外部接続端子などと接続す
る。The mounting surface of the mounting leg 6 of the thus-produced capacitor is aligned with the mounting surface of the outside, and is fixed to the outside with a screw or the like not shown. Also,
As shown in the drawing, the connecting fitting 3b that is exposed to the outside is connected to an external connecting terminal (not shown) on the same side as the mounting leg 6.
【００１６】このように、コンデンサケースの脚を直接
取り付けるタイプのコンデンサで、接続金具と外部との
接続箇所を取り付け脚と同じ側にした場合において、コ
ンデンサ素子２をコンデンサケース１に固定するための
充填樹脂４を注型する注型面７を取り付け脚６と同じ側
にすると共に、接続金具３を注型面７から外部に出すよ
うにすることで、接続金具３ａ、３ｂの外部機器等と接
続するまでの距離を短くできる。これにより、接続金具
３ａ、３ｂのインダクタンスを抑えることができる。As described above, in the case of a capacitor of the type in which the legs of the capacitor case are directly attached, the capacitor element 2 is fixed to the capacitor case 1 when the connection between the fitting and the outside is on the same side as the attachment legs. By making the casting surface 7 for casting the filling resin 4 on the same side as the mounting leg 6 and letting the connection fitting 3 extend outside from the casting surface 7, the connection fittings 3a, 3b can be connected to an external device or the like. The distance to connect can be shortened. Thereby, the inductance of the connection fittings 3a and 3b can be suppressed.
【００１７】また、このようにする別の利点として、取
り付け脚６の取り付け面を上向き（図１（ｂ）で上下
逆）にして製造作業することにより、取り付け脚６のお
のおのの高さが異なっていても、コンデンサケース１の
平面状の面がベースとなり作業しやすくなる。Further, as another advantage of doing so, the height of each mounting leg 6 is different by manufacturing the mounting leg 6 with the mounting surface facing upward (upside down in FIG. 1B). However, the flat surface of the capacitor case 1 serves as a base to facilitate work.
【００１８】また、コンデンサ容量を変える必要があ
り、コンデンサ素子の高さが変わっても、取り付け脚６
の高さを調整することで、接続金具３ａ、３ｂの距離を
同じにすることができ、接続金具３ａ、３ｂによるイン
ダクタンスの変化をなくすことができる。Further, it is necessary to change the capacity of the capacitor, and even if the height of the capacitor element changes, the mounting leg 6
By adjusting the height of the connection fittings 3a and 3b, the distance between the connection fittings 3a and 3b can be made the same, and the change in the inductance due to the connection fittings 3a and 3b can be eliminated.
【００１９】また、図２は、本実施の形態のコンデンサ
を、車輌駆動用モータを駆動するインバータ回路の平滑
用として用いた例を示す図であり、２１は電池などの直
流電源、２２は本実施の形態のコンデンサ、２３はイン
バータ回路、２４はモータ、２５は自動車を示す。FIG. 2 is a diagram showing an example in which the capacitor of this embodiment is used for smoothing an inverter circuit for driving a vehicle driving motor, 21 is a DC power source such as a battery, and 22 is a book. The capacitor of the embodiment, 23 is an inverter circuit, 24 is a motor, and 25 is an automobile.
【００２０】本実施の形態で示したコンデンサは、イン
バータ回路を用いてモータ駆動する自動車で使用するよ
うな、大容量を必要とするコンデンサにおいて、上記で
示したように、インダクタンスを抑えることができるこ
とから、図３で示すように、車両駆動用モータ２４を駆
動するインバータ回路２３に接続し、数百ヘルツから数
十キロヘルツの高周波電流のリップル電流等を平滑する
平滑用として用い、自動車２５に搭載するのに適してい
る。The capacitor described in the present embodiment is a capacitor that requires a large capacity, such as used in an automobile that drives a motor using an inverter circuit, and the inductance can be suppressed as described above. As shown in FIG. 3, it is connected to an inverter circuit 23 that drives a vehicle drive motor 24 and is used for smoothing ripple currents of high frequency currents of several hundreds of hertz to several tens of kilohertz and mounted on a vehicle 25. Suitable to do.
【００２１】なお、本実施の形態では、大容量のコンデ
ンサに対応するために複数のコンデンサを用いる例を示
したが、単数のコンデンサにおいても本実施の形態は有
効である。In the present embodiment, an example in which a plurality of capacitors are used in order to cope with a large capacity capacitor is shown, but the present embodiment is also effective for a single capacitor.
【００２２】また、本発明のコンデンサが、金属化フィ
ルムを巻回または積層してなる金属化フィルムコンデン
サであれば、自動車用の急激な温度変化などの過酷な環
境条件に適しているので、さらにインダクタンスを抑え
る点で本発明による効果は大きい。If the capacitor of the present invention is a metallized film capacitor formed by winding or laminating a metallized film, it is suitable for severe environmental conditions such as rapid temperature changes for automobiles. The effect of the present invention is great in that the inductance is suppressed.
【００２３】[0023]
【発明の効果】以上のように、本発明は、脚取り付けす
るフィルムコンデンサでコンデンサ素子を複数個とし容
量を増加させ、かつインダクタンスを抑えることができ
る。As described above, according to the present invention, it is possible to increase the capacity and suppress the inductance by providing a plurality of capacitor elements in the film capacitor attached to the legs.
【図１】（ａ）本発明の実施の形態におけるコンデンサ
の平面図を断面で示した図
（ｂ）本発明の実施の形態におけるコンデンサの正面図
を断面で示した図1A is a cross-sectional view showing a plan view of a capacitor according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view showing a front view of a capacitor according to an embodiment of the present invention.
【図２】本実施の形態のコンデンサを車輌駆動用モータ
を駆動するインバータ回路の平滑用として用いた構成を
示す図FIG. 2 is a diagram showing a configuration in which the capacitor of this embodiment is used for smoothing an inverter circuit that drives a vehicle drive motor.
【図３】（ａ）従来のコンデンサの平面図を断面で示し
た図
（ｂ）従来のコンデンサの正面図を断面で示した図3A is a cross-sectional view of a plan view of a conventional capacitor, and FIG. 3B is a cross-sectional view of a front view of a conventional capacitor.
１ コンデンサケース ２ コンデンサ素子 ３ａ、３ｂ 接続金具 ４ 充填樹脂 ５ 電極部 ６ 取り付け脚 ７ 注型面 ２３ インバータ回路 ２４ モータ ２５ 自動車 1 capacitor case 2 Capacitor element 3a, 3b Connection fitting 4 Filling resin 5 electrode part 6 mounting legs 7 Casting surface 23 Inverter circuit 24 motor 25 cars
───────────────────────────────────────────────────── フロントページの続き (72)発明者 奥野 茂男 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 5E082 AA06 BC09 BC14 EE23 FF05 FG06 FG26 GG07 GG08 GG09 GG25 JJ15 JJ21 MM34 5H007 AA08 BB06 FA04 HA02 HA03 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Shigeo Okuno 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. F term (reference) 5E082 AA06 BC09 BC14 EE23 FF05 FG06 FG26 GG07 GG08 GG09 GG25 JJ15 JJ21 MM34 5H007 AA08 BB06 FA04 HA02 HA03
Claims (8)
の端部に設けた電極部と、前記電極部と接続した接続金
具と、前記コンデンサ素子を内蔵し、内部を樹脂充填す
るとともに、取り付け脚を設けたコンデンサケースとを
備えるコンデンサの製造方法であって、前記コンデンサ
ケースに充填する樹脂を、前記取り付け脚を取り付ける
面と同じ側から注型し、前記接続金具を、前記樹脂を注
型する面から外部に出すようにして取り付けて製造する
コンデンサの製造方法。1. A capacitor element, an electrode portion provided at an end portion of the capacitor element, a metal fitting connected to the electrode portion, the capacitor element is built in, the inside is filled with resin, and a mounting leg is provided. A method of manufacturing a capacitor including a capacitor case, wherein resin for filling the capacitor case is cast from the same side as the surface on which the mounting leg is mounted, and the connecting metal fitting is cast from the surface on which the resin is cast. A method of manufacturing a capacitor that is mounted so that it is exposed to the outside.
を製造する請求項１記載のコンデンサの製造方法。2. The method for manufacturing a capacitor according to claim 1, wherein a capacitor including a plurality of capacitor elements is manufactured.
の端部に設けた電極部と、前記電極部と接続した接続金
具と、前記コンデンサ素子を内蔵し、内部を樹脂充填す
るとともに、取り付け脚を設けたコンデンサケースとを
備えるコンデンサであって、前記コンデンサケースに充
填する樹脂の注型面は、前記取り付け脚を取り付ける面
と同じ側であるとともに、前記接続金具は前記樹脂注型
する面から外部に出すようにしているコンデンサ。3. A capacitor element, an electrode portion provided at an end portion of the capacitor element, a connecting fitting connected to the electrode portion, the capacitor element is built in, the inside is filled with resin, and a mounting leg is provided. And a casting surface of the resin with which the capacitor case is filled is on the same side as the surface to which the mounting leg is attached, and the connection metal fitting is external from the resin casting surface. The capacitor that I am trying to put out.
載のコンデンサ。4. The capacitor according to claim 3, comprising a plurality of capacitor elements.
の端部に設けた電極部と、前記電極部と接続した接続金
具と、前記コンデンサ素子を内蔵し、内部を樹脂充填す
るとともに、取り付け脚を設けたコンデンサケースとを
備え、前記コンデンサケースに充填する樹脂の注型面
は、前記取り付け脚を取り付ける面と同じ側であるとと
もに、前記接続金具は前記樹脂注型する面から外部に出
すようにしているコンデンサを平滑用として用いた自動
車駆動用モータを駆動するインバータ回路。5. A capacitor element, an electrode portion provided at an end portion of the capacitor element, a connection fitting connected to the electrode portion, the capacitor element is built in, the inside is filled with resin, and a mounting leg is provided. A capacitor case, and the casting surface of the resin with which the capacitor case is filled is on the same side as the surface to which the mounting leg is attached, and the connection metal fitting is to be exposed from the resin casting surface to the outside. An inverter circuit that drives an automobile drive motor that uses a smoothing capacitor for smoothing.
を平滑用として用いた請求項５記載のインバータ回路。6. The inverter circuit according to claim 5, wherein a capacitor having a plurality of capacitor elements is used for smoothing.
の端部に設けた電極部と、前記電極部と接続した接続金
具と、前記コンデンサ素子を内蔵し、内部を樹脂充填す
るとともに、取り付け脚を設けたコンデンサケースとを
備えるコンデンサであって、前記コンデンサケースに充
填する樹脂の注型面は、前記取り付け脚を取り付ける面
と同じ側であるとともに、前記接続金具は前記樹脂注型
する面から外部に出すようにしているコンデンサを平滑
用として用いた自動車駆動用モータを駆動するインバー
タ回路を搭載した自動車。7. A capacitor element, an electrode portion provided at an end portion of the capacitor element, a connecting fitting connected to the electrode portion, and the capacitor element are built in, the inside is filled with resin, and a mounting leg is provided. And a casting surface of the resin with which the capacitor case is filled is on the same side as the surface to which the mounting leg is attached, and the connection metal fitting is external from the resin casting surface. A car equipped with an inverter circuit that drives a motor for driving a car that uses a capacitor for smoothing.
を平滑用として用いたインバータ回路を搭載した請求項
７記載の自動車。8. The automobile according to claim 7, wherein an inverter circuit using a capacitor having a plurality of capacitor elements for smoothing is mounted.
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|---|---|---|---|
| JP2002147413A JP3780975B2 (en) | 2002-05-22 | 2002-05-22 | Capacitor manufacturing method and capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002147413A JP3780975B2 (en) | 2002-05-22 | 2002-05-22 | Capacitor manufacturing method and capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003338425A true JP2003338425A (en) | 2003-11-28 |
| JP3780975B2 JP3780975B2 (en) | 2006-05-31 |
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| JP2002147413A Expired - Fee Related JP3780975B2 (en) | 2002-05-22 | 2002-05-22 | Capacitor manufacturing method and capacitor |
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| JP (1) | JP3780975B2 (en) |
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