Patents Assigned to Elna Co., Ltd.
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Patent number: 12512261Abstract: In a chip type capacitor formed by attaching a seat plate to a capacitor, generation of voids or cracks due to flux gas generated at the time of soldering is suppressed. When providing auxiliary terminals for increasing the soldering strength on a seat plate for chipping, which enables a lead same direction type capacitor to be surface mounted, a gas release groove, preferably formed as a slit to release flux gas generated at the time of soldering, is formed on each of the auxiliary terminals.Type: GrantFiled: March 30, 2022Date of Patent: December 30, 2025Assignee: ELNA CO., LTD.Inventors: Tadahiro Nakamura, Kaori Matsumura, Naozumi Kimura
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Patent number: 9842703Abstract: An aluminum electrolytic capacitor includes a capacitor element having lead terminals; an armor case housing the capacitor element; and a rubber seal having a terminal passage hole for the lead terminals drilled therein and mounted on an opening section of the armor case. A hole diameter of a lead wire passage hole is smaller than an outside diameter of an outside lead wire, and a conical guide surface of progressively smaller diameter is formed between a round bar mating hole and the lead wire passage hole within a terminal passage hole. A passage guide part of progressively smaller diameter from a lead wire body is integrally furnished at an end of the outside lead wire so as to have a smaller diameter than the hole diameter of the lead wire passage hole, forming a conical sloped surface having a predetermined angle on a peripheral surface of the passage guide part.Type: GrantFiled: August 18, 2016Date of Patent: December 12, 2017Assignee: ELNA CO., LTD.Inventors: Hiroshi Yanaka, Naoto Iwano, Kaori Matsumura, Hikaru Santsuka, Naozumi Kimura, Hidekazu Mizushima
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Publication number: 20170004926Abstract: An aluminum electrolytic capacitor includes a capacitor element having lead terminals; an armor case housing the capacitor element; and a rubber seal having a terminal passage hole for the lead terminals drilled therein and mounted on an opening section of the armor case. A hole diameter of a lead wire passage hole is smaller than an outside diameter of an outside lead wire, and a conical guide surface of progressively smaller diameter is formed between a round bar mating hole and the lead wire passage hole within a terminal passage hole. A passage guide part of progressively smaller diameter from a lead wire body is integrally furnished at an end of the outside lead wire so as to have a smaller diameter than the hole diameter of the lead wire passage hole, forming a conical sloped surface having a predetermined angle on a peripheral surface of the passage guide part.Type: ApplicationFiled: August 18, 2016Publication date: January 5, 2017Applicant: ELNA CO., LTD.Inventors: Hiroshi YANAKA, Naoto IWANO, Kaori MATSUMURA, Hikaru SANTSUKA, Naozumi KIMURA, Hidekazu MIZUSHIMA
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Patent number: 9496091Abstract: An aluminum electrolytic capacitor includes a capacitor element having lead terminals; an armor case housing the capacitor element; and a rubber seal having a terminal passage hole for the lead terminals drilled therein and mounted on an opening section of the armor case. A hole diameter of a lead wire passage hole is smaller than an outside diameter of an outside lead wire, a conical guide surface of progressively smaller diameter is formed between a round bar mating hole and the lead wire passage hole within a terminal passage hole. A passage guide part of progressively smaller diameter from a lead wire body is integrally furnished at an end of the outside lead wire so as to have a smaller diameter than the hole diameter of the lead wire passage hole, forming a conical sloped surface having a predetermined angle on a peripheral surface of the passage guide part.Type: GrantFiled: April 27, 2012Date of Patent: November 15, 2016Assignee: ELNA CO., LTD.Inventors: Hiroshi Yanaka, Naoto Iwano, Kaori Matsumura, Hikaru Santsuka, Naozumi Kimura, Hidekazu Mizushima
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Publication number: 20150016025Abstract: A lead terminal is passed through a terminal passage hole of a rubber seal, without imposing an excessive burden such that the characteristics of the capacitor element would be degraded, and while maintaining a state of reliable isolation from the outside air. In an aluminum electrolytic capacitor in which the hole diameter f2 of a lead wire passage hole (52) is smaller than the outside diameter f1 of an outside lead wire (22), the outside lead wire (22) being forcibly passed to the outside through lead wire passage hole (52), a conical guide surface (53) of progressively smaller diameter is formed between a round bar mating hole (51) and the lead wire passage hole (52) within a terminal passage hole (5).Type: ApplicationFiled: April 27, 2012Publication date: January 15, 2015Applicant: ELNA CO., LTD.Inventors: Hiroshi Yanaka, Naoto Iwano, Kaori Matsumura, Hikaru Santsuka, Naozumi Kimura, Hidekazu Mizushima
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Patent number: 5942885Abstract: The power compensating device for battery by this invention comprises a battery 10, a cable 13 that connects this battery 10 to a load 11, a compensating capacitor 12 inserted into the input side of the load 11, a voltage detecting circuit 27 that detects the fluctuation of the input voltage to the load 11, a comparison circuit 28 that compares detected value with referential value, a switching circuit 25 to be controlled by a comparison output, and an auxiliary capacitor 26 connected in parallel, via the switching circuit 25, with the compensating capacitor 12 to sufficiently suppress voltage drop. To this power compensating device it is possible to add a display circuit 29 that displays multistagedly the voltage fluctuation to know visually the effects of voltage fluctuation suppression.Type: GrantFiled: September 14, 1998Date of Patent: August 24, 1999Assignee: Elna Co., Ltd.Inventors: Kunio Nemoto, Masaaki Imamura
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Patent number: D418812Type: GrantFiled: September 14, 1998Date of Patent: January 11, 2000Assignee: Elna Co., Ltd.Inventor: Masaaki Imamura