Patents by Inventor Seiji Omura
Seiji Omura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7248460Abstract: An electric double layer capacitor includes: a cell which includes a pair of polarizable electrodes impregnated with an electrolytic solution and disposed in opposed relation with a separator interposed therebetween; collector electrodes respectively attached to the polarizable electrodes; and a sealing member of a synthetic resin which seals a periphery of the cell. The collector electrodes extend outward of the sealing member through the sealing member in contact with the sealing member. The collector electrodes each have a rough surface portion which extends through the sealing member.Type: GrantFiled: May 27, 2004Date of Patent: July 24, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Seiji Omura, Yasuhiro Kishimoto, Mamoru Kimoto, Kikuko Kato, Hiroshi Nakajima
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Publication number: 20070103847Abstract: An electric double layer capacitor including a separator, a pair of polarizing electrodes disposed opposite to each other with the separator interposed therebetween, an electrolytic solution impregnated in a pair of the polarizing electrodes and the separator, an exterior cover and an exterior case for accommodating the separator, a pair of the polarizing electrodes, and the electrolytic solution, and a gasket disposed between the outer circumferential part of the exterior cover and the inner circumferential part of the exterior case, the storage space formed by the exterior case and the exterior cover being hermetically sealed by inwardly bending the opening tip portion of the exterior case, is characterized in that no folded-back part is provided at the outer circumferential part of the exterior cover, and the gasket is polyether ether ketone.Type: ApplicationFiled: January 21, 2005Publication date: May 10, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventors: Seiji Omura, Hiroshi Nakajima, Yobei Kawata, Mitsuru Shirasaka
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Publication number: 20070081298Abstract: In an electric double layer capacitor including two plate-like polarizable electrodes stacked in layers via a separator and constituted by housing these in an outer packaging member, a contact area between a first polarizable electrode and the separator is different from a contact area between a second polarizable electrode and the separator, and the polarizable electrode with a smaller contact area is formed thicker than the polarizable electrode with a larger contact area. In addition, it is preferable that the first polarizable electrode and the second polarizable electrode have a generally equal volume.Type: ApplicationFiled: September 27, 2004Publication date: April 12, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventors: Seiji Omura, Hiroshi Nakajima
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Publication number: 20070053138Abstract: An electric double layer capacitor has an electrode unit (10), an external lid (4), an external case, and a gasket (8) disposed between the external lid (4) and the external case (5). The external case (5) has an open end part that is bent inwardly with the external lid and the external case being disposed so that inner surfaces of the top wall and the bottom wall face each other, to hermetically close an accommodating space, formed by the external case and the external lid. The thickness of at least the circumferential wall of the external lid (4) is greater than the thickness of the external case (5). The circumferential wall of the external lid (4) extends substantially linearly toward the bottom wall of the external case (5), and the extending edge of the circumferential wall of the external lid (4) is buried in the gasket (8).Type: ApplicationFiled: August 28, 2006Publication date: March 8, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventors: Seiji Omura, Mitsuru Shirasaka
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Publication number: 20070014076Abstract: An electric double layer capacitor comprises: a cell which includes a pair of polarizable electrodes impregnated with an electrolytic solution and disposed in opposed relation with a separator interposed therebetween; collector electrodes respectively attached to the polarizable electrodes; and a sealing member of a synthetic resin which seals a periphery of the cell. The collector electrodes extend outward of the sealing member through the sealing member in contact with the sealing member. The collector electrodes each have a rough surface portion which extends through the sealing member.Type: ApplicationFiled: May 27, 2004Publication date: January 18, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventors: Seiji Omura, Yasuhiro Kishimoto, Mamoru Kimoto, Kikuko Kato, Hiroshi Nakajima
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Publication number: 20060244110Abstract: An upper connecting part of an electrode terminal connected to an upper side electrode in an electrode holding vessel of a power storage device is disposed below a lower connecting part of an electrode terminal connected to a lower side electrode in the electrode holding vessel. Additionally, the electrode holding vessel is disposed above a surface connecting the upper connecting part and the lower connecting part.Type: ApplicationFiled: April 26, 2006Publication date: November 2, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventor: Seiji Omura
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Patent number: 7079376Abstract: An electric double layer capacitor is provided with a cell, in which a pair of polarizable electrodes, which are impregnated with an electrolyte, are disposed in opposition on either side of a separator; wherein the polarizable electrodes are provided with collector electrodes, a peripheral portion of the cell is sealed by a sealing member composed of synthetic resin, and the sealing member is formed by abutting two case halves.Type: GrantFiled: March 21, 2005Date of Patent: July 18, 2006Assignees: Sanyo Electric Co., Ltd., Furukawa Precision Engineering Co., Ltd.Inventors: Fumio Tatezono, Seiji Omura, Kiyotaka Ito, Tsuyoshi Komatsu, Makoto Hashimoto
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Patent number: 7054138Abstract: An electric double layer capacitor is provided with a cell, in which a pair of polarizable electrodes, which are impregnated with an electrolyte, are disposed in opposition on either side of a separator; wherein the polarizable electrodes are provided with collector electrodes, and a peripheral portion of the cell is sealed by a sealing member composed of synthetic resin. The collector electrodes are composed of an alloy made of crystal grains of differing components and the collector electrodes pass through the sealing member while in intimate contact with the sealing member, extending to the outside of the sealing member. A metal plated layer made of crystal grains of a single component is formed on those locations on the collector electrodes that pass through the sealing member.Type: GrantFiled: March 21, 2005Date of Patent: May 30, 2006Assignees: Sanyo Electric Co., Ltd., Furukawa Precision Engineering Co., Inc.Inventors: Fumio Tatezono, Seiji Omura, Kiyotaka Ito, Tsuyoshi Komatsu, Makoto Hashimoto
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Publication number: 20060102110Abstract: A cylinder block (10) is such that a main body cylinder block (4; 404) and an outer cylinder block (6; 406) are molded separately. As a result, the portion of the die which is used to mold a water jacket (50; 450) does not need to be made thin, thereby increasing the life of the die. Further, cylinders (12; 412) are of a simple shape and the pressure in the axial direction of the cylinder (12; 412) is able to be dispersed substantially evenly between the cylinders (12; 412) and the outer cylinder block (6; 406), thus enabling the cylinders (12; 412) to be thin. Accordingly, there is an increased degree of freedom in design of the portion which forms the water jacket (50; 450). The water jacket (50; 450) and the cylinders (12; 412) can therefore both be made sufficiently thin, thereby contributing to a decrease in both the size and weight of the engine.Type: ApplicationFiled: December 30, 2003Publication date: May 18, 2006Inventors: Kazumari Takenaka, Seiji Omura, Toshihiro Takami, Kazuya Yoshijima
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Patent number: 7036479Abstract: A cylinder block for an engine has a cylinder assembly having a plurality of cylinders, each corresponding to one of a plurality of pistons. A block body has an outer wall accommodating the cylinder assembly, a crankcase accommodating the crankshaft, and a plurality of partitions. The partitions divide the space in the crankcase into a plurality of crank chambers. The number of the crank chambers corresponds to the number of the cylinders. The outer wall, the crankcase, and the partitions are formed integrally. A partition through portion is formed in a predetermined one of the partitions to connect an adjacent pair of the crank chambers. The partition through portion opens toward the cylinders.Type: GrantFiled: March 11, 2005Date of Patent: May 2, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazunari Takenaka, Seiji Omura
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Patent number: 7031140Abstract: The invention provides an electric double layer capacitor which has a container made from a resin in a substantially rectangular parallelepipedal form by joining a first container half segment and a second container half segment each in the form of a box. The second container segment is provided at one end thereof with an extension extending along an outer side surface of the first container segment to the bottom outer surface thereof. A first lead member has a portion closer to one end thereof, embedded in the first container segment, the first lead member portion, bent as embedded in the first container segment and led out of the container to outside thereof. A second lead member has a portion closer to one end thereof, embedded in the second container segment, bent as embedded in the second container segment and extending through the extension to outside of the container.Type: GrantFiled: November 30, 2004Date of Patent: April 18, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Seiji Omura, Kiyotaka Ito
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Patent number: 6982865Abstract: A solid electrolytic capacitor formed with a dielectric coating and a solid electrolyte layer successively formed on a surface of an anode body, wherein the solid electrolyte layer includes a conductive polymer containing at least a tetrahydronaphthalenesulfonate ion and a naphthalenesulfonate ion as dopants or a conductive polymer containing at least a tetrahydronaphthalenesulfonate ion and a benzenesulfonate ion as dopants. As a result, a solid electrolytic capacitor having a low ESR and a good heat resistance is provided.Type: GrantFiled: October 1, 2004Date of Patent: January 3, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Yohei Kawata, Fumio Tatezono, Seiji Omura, Kouhei Gotou
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Publication number: 20050217628Abstract: A cylinder block for an engine has a cylinder assembly having a plurality of cylinders, each corresponding to one of a plurality of pistons. A block body has an outer wall accommodating the cylinder assembly, a crankcase accommodating the crankshaft, and a plurality of partitions. The partitions divide the space in the crankcase into a plurality of crank chambers. The number of the crank chambers corresponds to the number of the cylinders. The outer wall, the crankcase, and the partitions are formed integrally. A partition through portion is formed in a predetermined one of the partitions to connect an adjacent pair of the crank chambers. The partition through portion opens toward the cylinders.Type: ApplicationFiled: March 11, 2005Publication date: October 6, 2005Inventors: Kazunari Takenaka, Seiji Omura
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Publication number: 20050213284Abstract: An electric double layer capacitor is provided with a cell, in which a pair of polarizable electrodes, which are impregnated with an electrolyte, are disposed in opposition on either side of a separator; wherein the polarizable electrodes are provided with collector electrodes, a peripheral portion of the cell is sealed by a sealing member composed of synthetic resin, and the sealing member is formed by abutting two case halves.Type: ApplicationFiled: March 21, 2005Publication date: September 29, 2005Applicants: SANYO ELECTRIC CO., LTD, FURUKAWA PRECISION ENGINEERING CO., LTD.Inventors: Fumio Tatezono, Seiji Omura, Kiyotaka Ito, Tsuyoshi Komatsu, Makoto Hashimoto
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Publication number: 20050213285Abstract: An electric double layer capacitor is provided with a cell, in which a pair of polarizable electrodes, which are impregnated with an electrolyte, are disposed in opposition on either side of a separator; wherein the polarizable electrodes are provided with collector electrodes, and a peripheral portion of the cell is sealed by a sealing member composed of synthetic resin. The collector electrodes are composed of an alloy made of crystal grains of differing components and the collector electrodes pass through the sealing member while in intimate contact with the sealing member, extending to the outside of the sealing member. A metal plated layer made of crystal grains of a single component is formed on those locations on the collector electrodes that pass through the sealing member.Type: ApplicationFiled: March 21, 2005Publication date: September 29, 2005Applicants: SANYO ELECTRIC CO., LTD, FURUKAWA PRECISION ENGINEERING CO., LTD.Inventors: Fumio Tatezono, Seiji Omura, Kiyotaka Ito, Tsuyoshi Komatsu, Makoto Hashimoto
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Publication number: 20050207095Abstract: The invention provides an electric double layer capacitor which has a container made from a resin in a substantially rectangular parallelepipedal form by joining a first container half segment and a second container half segment each in the form of a box. The second container segment is provided at one end thereof with an extension extending along an outer side surface of the first container segment to the bottom outer surface thereof. A first lead member has a portion closer to one end thereof, embedded in the first container segment, the first lead member portion, bent as embedded in the first container segment and led out of the container to outside thereof. A second lead member has a portion closer to one end thereof, embedded in the second container segment, bent as embedded in the second container segment and extending through the extension to outside of the container.Type: ApplicationFiled: November 30, 2004Publication date: September 22, 2005Applicant: SANYO ELECTRIC CO., LTD.Inventors: Seiji Omura, Kiyotaka Ito
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Patent number: 6912118Abstract: A solid electrolytic capacitor formed with a dielectric coating and a solid electrolyte layer successively formed on a surface of an anode body, wherein the solid electrolyte layer includes a conductive polymer containing at least a fluoroalkylnaphthalenesulfonate ion as a dopant. The conductive polymer can further contain a tetrahydronaphthalenesulfonate ion, a naphthalenesulfonate ion or a benzenesulfonate ion as the dopant. As a result, a solid electrolytic capacitor having a low ESR and a good heat resistance is provided.Type: GrantFiled: October 26, 2004Date of Patent: June 28, 2005Assignee: Sanyo Electric Co., Ltd.Inventors: Kenichiro Matsuzaki, Yohei Kawata, Seiji Omura, Fumio Tatezono, Yoshikazu Hirata
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Publication number: 20050127615Abstract: A cylinder head gasket for sealing between a cylinder block and a cylinder head, composed of a composite base plate, the composite base plate comprising a core material plate and a compound layer formed on the front and back surfaces of the core material plate, the compound layer being formed by coating compound materials which contain a rubber and a fiber material. The cylinder head gasket is comprised of an annular groove which is formed by pressing the corresponding region around the cylinder bore of the compound layer, and a bead projecting from the surface of the compound layer which is formed by inserting the rubber material into the annular groove.Type: ApplicationFiled: September 17, 2004Publication date: June 16, 2005Applicants: Uchiyama Manufacturing Corp., U-Sun Gasket Corporation, Toyota Jidosha Kabushiki KaishaInventors: Katsunori Matsuki, Masashi Himesaki, Shigeo Ogaki, Seiji Omura, Akira Yasuki
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Publication number: 20050088804Abstract: A solid electrolytic capacitor formed with a dielectric coating and a solid electrolyte layer successively formed on a surface of an anode body, wherein the solid electrolyte layer includes a conductive polymer containing at least a fluoroalkylnaphthalenesulfonate ion as a dopant. The conductive polymer can further contain a tetrahydronaphthalenesulfonate ion, a naphthalenesulfonate ion or a benzenesulfonate ion as the dopant. As a result, a solid electrolytic capacitor having a low ESR and a good heat resistance is provided.Type: ApplicationFiled: October 26, 2004Publication date: April 28, 2005Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kenichiro Matsuzaki, Yohei Kawata, Seiji Omura, Fumio Tatezono, Yoshikazu Hirata
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Publication number: 20050078435Abstract: A solid electrolytic capacitor formed with a dielectric coating and a solid electrolyte layer successively formed on a surface of an anode body, wherein the solid electrolyte layer includes a conductive polymer containing at least a tetrahydronaphthalenesulfonate ion and a naphthalenesulfonate ion as dopants or a conductive polymer containing at least a tetrahydronaphthalenesulfonate ion and a benzenesulfonate ion as dopants. As a result, a solid electrolytic capacitor having a low ESR and a good heat resistance is provided.Type: ApplicationFiled: October 1, 2004Publication date: April 14, 2005Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yohei Kawata, Fumio Tatezono, Seiji Omura, Kouhei Gotou