Patents by Inventor Shinji Ando
Shinji Ando 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: 6301443Abstract: A strobe device comprising a circuit substrate including a plurality of conductive elastic members. The plurality of conductive elastic members includes a first portion forming a predetermined electric circuitry. A second portion, if present, forms various electrical contacts external to the circuit substrate, e.g., a battery contact. A third portion, if present, elastically retains terminals of electronic elements and functions as an electrical contact. An insulation member having a first surface integrally internalizing the plurality of conductive elastic members in such a manner that the second portion and third portion are exposed. Further, the electronic elements and the optical elements are electrically and/or mechanically coupled to the circuit substrate via the plurality of conductive elastic members and the insulation member. The third portion is provided entirely within the insulation member when elastically retaining terminals of the electronic elements.Type: GrantFiled: July 28, 1997Date of Patent: October 9, 2001Assignee: West Electric Company, Ltd.Inventors: Hajime Mitsui, Wataru Imagawa, Isao Oe, Syuji Furukawa, Shinji Ando
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Patent number: 6273687Abstract: A micromachined pump apparatus 1 includes a substrate 2 having upper and lower surfaces and a plurality of lengthwise arranged apertures 2A-2E, each of which has an upper surface opening and a lower surface opening. A plurality of diaphragms 6A-6E close the upper surface openings of the apertures 2A-2E, respectively. A guide plate 3 is fixedly mounted on the upper surface of the substrate 2 and defines a passage 3a through which an object fluid is moved by cooperating with the diaphragms on the upper surface of the substrate 2. A base plate 4 is fixedly mounted at its upper surface on the lower surface of the substrate 2, thereby enclosing an operating fluid in each of the apertures 2A-2E. An electrically operated heater device 5 is provided on the upper surface of the base plate 4 for heating the fluids in the apertures 2A-2E, respectively, in such a manner that whenever the fluids are heated the resultant expansion of the respective operating fluid expands the diaphragms, respectively, toward the passage.Type: GrantFiled: November 23, 1999Date of Patent: August 14, 2001Assignee: Aisin Seiki Kabushiki KaishaInventors: Wataru Nogimori, Yoshihiro Naruse, Kouichi Irisa, Shinji Ando
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Patent number: 6115514Abstract: An optical waveplate includes a polyimide with a film thickness of 20 .mu.m or less.Type: GrantFiled: July 7, 1998Date of Patent: September 5, 2000Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Takashi Sawada, Yasuyuki Inoue
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Patent number: 6072920Abstract: An optical waveplate includes a polyimide with a film thickness of 20 .mu.m or less.Type: GrantFiled: July 29, 1999Date of Patent: June 6, 2000Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Takashi Sawada, Yasuyuki Inoue
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Patent number: 6048986Abstract: A method for preparing aromatic compounds including 1,4-difluoropyromellitic dianhydride represented by formula (12): ##STR1## and 1,4-difluoropyromellitic acid represented by formula (15): ##STR2## by dehydrating or hydrolyzing and dehydrating precursors.Type: GrantFiled: June 17, 1998Date of Patent: April 11, 2000Assignee: Nippon Telegraph and Telephone Corp.Inventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
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Patent number: 5901259Abstract: An optical waveplate includes a polyimide with a film thickness of 20 .mu.m or less.Type: GrantFiled: April 11, 1997Date of Patent: May 4, 1999Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Takashi Sawada, Yasuyuki Inoue
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Patent number: 5849934Abstract: A perfluorinated polyimide comprising a repeating unit represented by general formula (1): ##STR1## and a perfluorinated poly(amic acid) comprising a repeating unit represented by general formula (6): ##STR2## wherein R.sub.1 is a tetravalent organic group; and R.sub.2 is a divalent organic group, provided that chemical bonds between carbon atoms and monovalent elements contained in R.sub.1 and R.sub.2 are exclusively carbon-to-fluorine bonds; methods for preparing them; and optical material including the perfluorinated polyimide. 1,4-Bis(3,4-dicarboxytrifluorophenoxy)-tetrafluorobenzene dianhydride, 1,4-difluoropyromellitic anhydride, 1,4-bis(3,4-dicarboxytrifluorophenoxy)-tetrafluorobenzene, 1,4-difluoropyromellitic acid, and 1,4-bis(3,4-dicyanotrifluorophenoxy)-tetrafluorobenzene as well as methods preparing them. The perfluorinated polyimide has a thermal stability and has a low optical loss in an optical communication wavelength region (0.8 to 1.7 .mu.m).Type: GrantFiled: January 28, 1998Date of Patent: December 15, 1998Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
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Patent number: 5750731Abstract: A perfluorinated aromatic compound represented by general formula (7): ##STR1## wherein R.sub.3 is a tetravalent perfluorinated aromatic group represented by formula (8): ##STR2## wherein (R.sub.4)s are the same, each being a carboxyl group or a cyano group, or two adjacent (R.sub.4)s combine to form a divalent group represented by formula (10): ##STR3## provided that when R.sub.4 is a cyano group, R.sub.3 denotes said tetravalent perfluorinated aromatic group represented by formula (9).Type: GrantFiled: September 20, 1996Date of Patent: May 12, 1998Assignee: Nippon Telegraph & Telephone CorporationInventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
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Patent number: 5734934Abstract: An emission angle variable flash apparatus of the invention alters an angular aperture to be formed by side reflection plates disposed oppositely to both side surfaces of a reflector in linkage with a change of a distance between a Xe tube and a reflector on their optical axis, thereby enhancing the efficiency of utilization of flash from a light source and expanding a variable range of an emission angle in the horizontal direction. As a result, the emission angle variable flash apparatus of the invention is made smaller in size than in the prior art.Type: GrantFiled: September 16, 1996Date of Patent: March 31, 1998Assignee: West Electric Co., Ltd.Inventors: Katsumi Horinishi, Akira Iwamoto, Mitsuo Fuke, Katsunori Kawabata, Shinji Ando
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Patent number: 5694496Abstract: An optical waveplate includes a polyimide with a film thickness of 20 .mu.m or less.Type: GrantFiled: November 12, 1996Date of Patent: December 2, 1997Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Takashi Sawada, Yasuyuki Inoue
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Patent number: 5598501Abstract: A polyimide optical waveguide comprising a core made of polyimide whose refractive index is controlled to a predetermined value by electron beam irradiation, and a cladding set in contact with the core and having a refractive index lower than that of the core.Type: GrantFiled: April 18, 1995Date of Patent: January 28, 1997Assignee: Nippon Telegraph and Telephone CorporationInventors: Yasuko Maruo, Shigekuni Sasaki, Toshiaki Tamamura, Tohru Matsuura, Shinji Ando, Shinsuke Matsui, Fumio Yamamoto
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Patent number: 5572619Abstract: A polyimide optical waveguide comprising a core made of polyimide whose refractive index is controlled to a predetermined value by electron beam irradiation, and a cladding set in contact with the core and having a refractive index lower than that of the core.Type: GrantFiled: April 19, 1995Date of Patent: November 5, 1996Assignee: Nippon Telegraph and Telephone CorporationInventors: Yasuko Maruo, Shigekuni Sasaki, Toshiaki Tamamura, Tohru Matsuura, Shinji Ando, Shinsuke Matsui, Fumio Yamamoto
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Patent number: 5499909Abstract: A micro-pump is disclosed for pneumatically causing a bulging/retracting motion of a plurality of micro-diaphragms disposed in an array along a channel through which a fluid is being driven. The pump includes channel means (10) including a first port (11), a second port (12) and a flow-through space (13) providing a communication therebetween; a plurality of diaphragms (21a-21e) disposed in an array along the flow-through space (13); diaphragm support means (20) including a plurality of actuating gas spaces (22a-22e) which opposes the rear surfaces of the respective diaphragms; a plurality of reciprocatory motion means for individually imparting an oscillation of pneumatic pressure to the respective actuating gas spaces (22a-22e), and drive means for driving the reciprocatory motion means for driving motion with phase differences therebetween so that the upper dead center shifts in the direction of the array.Type: GrantFiled: November 17, 1994Date of Patent: March 19, 1996Assignees: Aisin Seiki Kabushiki Kaisha of Kariya, Kabushiki Kaisha ShinsangyokaihatsuInventors: Takahiro Yamada, Shinji Ando, Yoshihiro Naruse
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Patent number: 5449741Abstract: A polyimide optical material, composed of a perfluorinated polyimide having a perfluorinated repeating unit represented by general formula (1) ##STR1## wherein R.sub.1 is a tetravalent perfluorinated organic group; and R.sub.2 is a divalent perfluorinated organic group.Type: GrantFiled: October 25, 1993Date of Patent: September 12, 1995Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
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Patent number: 5319063Abstract: A phenolic resin can be obtained by a condensation reaction between a specific trifunctional aromatic compound and a phenolic compound. This resin can be reacted with a curing agent such as a hexamine to give cured articles having excellent heat resistance, electrical properties, wear resistance and chemical resistance, and the phenolic resin is also much more excellent in curing reactivity as compared with conventional techniques.Type: GrantFiled: January 15, 1993Date of Patent: June 7, 1994Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Shinji Ando, Yukio Fukui, Shigeru Iimuro
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Patent number: 5233018Abstract: A perfluorinated polyimide comprising a repeating unit represented by general formula (1): ##STR1## and a perfluorinated poly(amic acid) comprising a repeating unit represented by general formula (6): ##STR2## wherein R.sub.1 is a tetravalent organic group; and R.sub.2 is a divalent organic group, provided that chemical bonds between carbon atoms and monovalent elements contained in R.sub.1 and R.sub.2 are exclusively carbon-to-fluorine bonds; methods for preparing them; and optical material including the perfluorinated polyimide. 1,4-Bis(3,4-dicarboxytrifluorophenoxy)tetrafluorobenzene dianhydride, 1,4-difluoropyromellitic anhydride, 1,4-bis(3,4-dicarboxytrifluorophenoxy)tetrafluorobenzene, 1,4-difluoropyromellitic acid, and 1,4-bis(3,4-dicyanotrifluorophenoxy)tetrafluorobenzene as well as methods preparing them. The perfluorinated polyimide has a thermal stability and has a low optical loss in an optical communication wavelength region (0.8 to 1.7 .mu.m).Type: GrantFiled: September 26, 1991Date of Patent: August 3, 1993Assignee: Nippon Telegraph and Telephone CorporationInventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
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Patent number: 5216112Abstract: A phenolic resin can be obtained by a condensation reaction between a specific trifunctional aromatic compound and a phenolic compound. This resin can be reacted with a curing agent such as a hexamine to give cured articles having excellent heat resistance, electrical properties, wear resistance and chemical resistance, and the phenolic resin is also much more excellent in curing reactivity as compared with conventional techniques.Type: GrantFiled: August 15, 1991Date of Patent: June 1, 1993Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Shinji Ando, Yukio Fukui, Shigeru Iimuro
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Patent number: 5108201Abstract: An optical waveguide which has properties including low optical losses, facile fabrication, controllable core-cladding refractive index ratio, and a high heat resistance is provided. The optical waveguide for light transmission therethrough has a core made of a polyimide obtained from at least one tetracarboxylic acid dianhydride and at least one diamine. The polyimide is (a) a polyimide homopolymer derived from a diamine represented by formula [I] as follows: ##STR1## (b) a polyimide copolymer derived from at least one diamine including the diamine represented by the formula [I]; or (c) a mixture of the polyimide homopolymers.Type: GrantFiled: April 26, 1991Date of Patent: April 28, 1992Assignee: Nippon Telegraph and Telephone CorporationInventors: Toru Matsuura, Shiro Nishi, Shigekuni Sasaki, Toshihiro Ichino, Fumio Yamamoto, Shinji Ando, Fusao Shimokawa, Shinji Koike
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Patent number: 4937393Abstract: In the manufacturing method of ethylene glycol and/or propylene glycol, these glycols can be prepared with a highly selectivity and at a high yield by applying the catalyst comprising a carboxylic acid and a carboxylic acid salt or a metal salt of formic acid alone.Type: GrantFiled: May 17, 1988Date of Patent: June 26, 1990Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takayoshi Masuda, Katuyoshi Asano, Naomi Hori, Shinji Ando
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Patent number: 4713245Abstract: Disclosed herein is a granule containing physiologically-active substance which comprises at least(A): a physiologically-active substance;(B): a substance which is stable under neutral condition but disintegrates or dissolves at a pH of 3 or less; and(C): at least one substance selected from the group consisting of straight-chain or branched, saturated or unsaturated monocarboxylic acids having at least 14 carbon atoms and salts thereof, animal fats having a melting point of 40.degree. C. or higher, vegetable fats having a melting point of 40.degree. C. or higher and waxes having a melting point of 40.degree. C. or higher, and which granule further has a protective film comprising at least said substances (B) and (C) on the surface thereof. The protective film has a thickness of preferably at most 20% of the granular diameter and is preferably at least composed of at least 10% by weight of the substance (B) and at most 90% by weight of the substance (C).Type: GrantFiled: May 24, 1985Date of Patent: December 15, 1987Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Shinji Ando, Masami Ohtaguro, Takayoshi Masuda, Yoshimoto Watanabe