Patents by Inventor Seiichi Matsushima
Seiichi Matsushima 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: 8203664Abstract: An electro-optical device includes an electro-optical panel, a backlight unit and a mounting case. The mounting case includes a sidewall and a support portion provided inside the sidewall. The support portion has a notch portion that faces to the side surface of the backlight unit.Type: GrantFiled: October 2, 2009Date of Patent: June 19, 2012Assignee: Seiko Epson CorporationInventor: Seiichi Matsushima
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Publication number: 20100123849Abstract: An electro-optical device includes an electro-optical panel, a backlight unit and a mounting case. The mounting case includes a sidewall and a support portion provided inside the sidewall. The support portion has a notch portion that faces to the side surface of the backlight unit.Type: ApplicationFiled: October 2, 2009Publication date: May 20, 2010Applicant: Seiko Epson CorporationInventor: Seiichi Matsushima
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Patent number: 7491580Abstract: There is provided a method of manufacturing an electro-optical device from a large substrate that is cut into a plurality of first substrates having a chip shape. In the electro-optical device, second substrates of a chip shape are bonded to the first substrates. The method includes adhering a large glass substrate to approximately an entire surface of the large substrate opposite to a surface to which the second substrates are bonded; and cutting both the large substrate and the large glass substrate into first substrate units.Type: GrantFiled: May 18, 2005Date of Patent: February 17, 2009Assignee: Seiko Epson CorporationInventors: Seiichi Matsushima, Kenji Murakami, Hiroki Maruyama
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Publication number: 20050266596Abstract: There is provided a method of manufacturing an electro-optical device from a large substrate that is cut into a plurality of first substrates having a chip shape. In the electro-optical device, second substrates of a chip shape are bonded to the first substrates. The method includes adhering a large glass substrate to approximately an entire surface of the large substrate opposite to a surface to which the second substrates are bonded; and cutting both the large substrate and the large glass substrate into first substrate units.Type: ApplicationFiled: May 18, 2005Publication date: December 1, 2005Applicant: SEIKO EPSON CORPORATIONInventors: Seiichi Matsushima, Kenji Murakami, Hiroki Maruyama
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Patent number: 5085910Abstract: Disclosed is an optical data recording medium provided with a glass substrate and a recording layer carried by the glass substrate, wherein the glass substrate is composed of a glass plate having a mixed layer of metallic tin or a tin compound formed on at least one surface thereof, a content of the metallic tin or tin compound on the surface of the glass substrate being regulated to 1.Type: GrantFiled: July 9, 1990Date of Patent: February 4, 1992Assignee: Hitachi Maxell, Ltd.Inventors: Seiichi Matsushima, Masahide Yagi, Masahiro Suzuki, Yasuyuki Mori
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Patent number: 5013594Abstract: There is disclosed an optical information recording medium comprising forming at least a recording or reflecting film on one surface of a substrate, wherein an plasma-polymerized film of a halogen-containing resin is formed on at least one of the surface of the substrate or the outer surface of the recording or reflecting film. The medium may further include an additional UV-curing film which is formed on any of the surface of the substrate or plasma-polymerized film of halogen-containing resin on the surface of the substrate, the recording or reflecting film, or the peripheries of the substrate and protective film.Type: GrantFiled: September 22, 1988Date of Patent: May 7, 1991Assignee: Hitachi Maxwell, Ltd.Inventors: Tetsuo Mizumura, Minoru Ichijo, Ken-ichirou Nakao, Seiichi Matsushima, Yoshitane Tuburaya
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Patent number: 4740948Abstract: A disc cartridge comprising a cartridge case, a magnetic recording disc rotatably mounted in the cartridge case, and head insertion openings formed extending to the side portions of the cartridge case, the openings being opened even at one edge of the cartridge case for facilitating insertion of the head mounted in a recording and play back device, the cartridge case being reinforced by at least one reinforcement member having a smaller diameter or a smaller thickness than the thickness of the cartridge case.Type: GrantFiled: May 9, 1986Date of Patent: April 26, 1988Assignees: Hitachi Maxwell, Ltd., Hitachi, Ltd.Inventors: Yoshiyuki Nakamori, Seiichi Matsushima, Yasunori Kanazawa, Mitsuyoshi Koyama, Shinichi Abe, Nobuyuki Fujimoto
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Patent number: 4710913Abstract: An optical recording disc comprises a first bonding recess formed near an outside surface of an optical recording disc in a bonding boundary portion between a cylindrical hub and a transparent disc substrate, a disc member bonded with said transparent disc substrate through said cylindrical hub, and a second bonding recess formed near the outside surface of said optical recording disc in a bonding boundary portion between said cylindrical hub and said disc member. Accordingly, said optical recording disc can prevent remainder of a bonding material for bonding a pair of said transparent disc substrates or said transparent disc substrate and said disc member together from pushing out of the outside surface of the optical recording disc, resulting in that focusing for reading and writing an information signal can be properly performed.Type: GrantFiled: June 24, 1986Date of Patent: December 1, 1987Assignee: Hitachi Maxell, Ltd.Inventors: Seiichi Matsushima, Toshio Higashihara, Mitsuru Shimizu, Ken Yoshizawa, Masahiro Suzuki, Toshinori Sugiyama
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Patent number: 4451542Abstract: A cell comprising a positive can and a negative collector fitted in the opening of the positive can, a gasket being set in the space between the positive can and the negative collector to prevent the leakage of liquid material from the cell, characterized in that the gasket is made of a synthetic resin composition comprising glass beads. The cell is much improved in its leak-proof properties.Type: GrantFiled: December 8, 1981Date of Patent: May 29, 1984Assignee: Hitachi Maxell, Ltd.Inventors: Osamu Ishida, Yoshio Uetani, Seiichi Matsushima
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Patent number: 4333995Abstract: A leak-proof cell comprising a positive can and a negative collector fitted in the opening of the positive can, a gasket made of a synthetic resin being set in the space between the positive can and the negative collector to prevent the leakage of any liquid material in the cell, characterized in that the degree of crystallinity of the gasket set in the cell is at least 10% higher than that of the gasket immediately after molding.Type: GrantFiled: June 27, 1980Date of Patent: June 8, 1982Assignee: Hitachi Maxell, Ltd.Inventors: Osamu Ishida, Yoshio Uetani, Seiichi Matsushima
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Patent number: 4238555Abstract: A leak-proof alkaline cell comprising a positive can, a negative cap having a turned-up portion, said cap being fitted at the open end of the positive can and a gasket provided between the positive can and the negative cap, the rim of the positive can being crimped inwardly so as to press the gasket to the negative cap, the negative cap being made of a metal plate laminated with a copper layer which is adapted to be contacted with a negative electrode active material mix and the copper layer also extending to the outer surface of the negative cap facing the gasket, characterized in that the copper layer is eliminated at the ultimate terminal edge of the turned-up portion.Type: GrantFiled: July 10, 1979Date of Patent: December 9, 1980Assignee: Hitachi Maxell, Ltd.Inventors: Yoshio Uetani, Yasuyoshi Taniguchi, Kenichi Yokoyama, Seiichi Matsushima, Sonae Kirihara
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Patent number: 4220694Abstract: A leak-proof alkaline cell comprising a negative electrode collector and a gasket, characterized in that the negative electrode collector is coated with a film comprising a triazole compound at least at the part faced to the gasket.Type: GrantFiled: May 31, 1979Date of Patent: September 2, 1980Assignee: Hitachi Maxell, Ltd.Inventors: Yoshio Uetani, Yasuyoshi Taniguchi, Kenichi Yokoyama, Seiichi Matsushima
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Patent number: 4220695Abstract: A leak-proof alkaline cell comprising a positive can and a negative electrode collector kept at the opening end of the positive can with intervention of a gasket so as to make the inside of the cell liquid-tight, characterized in that the gasket is made of an alkali resistant, elastic material and has a moisture content of not more than 0.3% by weight.Type: GrantFiled: June 13, 1979Date of Patent: September 2, 1980Assignee: Hitachi Maxell, Ltd.Inventors: Osamu Ishida, Yoshio Uetani, Seiichi Matsushima