Patents by Inventor Kouji Shibata
Kouji Shibata 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: 6727613Abstract: A driving-side rotator of a clutch has a connecting hole, within which a connecting portion of a rotatable shaft is loosely fitted while providing a space between the connecting hole and the connection portion. The connecting hole of the driving-side rotator is engageable with the connecting portion of the rotatable shaft in a rotational direction to integrally rotate with connecting portion of the rotatable shaft. Two positioning holes are provided in a brush holder, and two positioning projections are provided in a gear housing to allow direct positioning of the brush holder and the gear housing relative to each other.Type: GrantFiled: April 12, 2002Date of Patent: April 27, 2004Assignee: Asmo Co., Ltd.Inventors: Takenobu Kawakami, Keijiro Suzuki, Toshihiro Saitou, Tadashi Adachi, Hiroaki Yamamoto, Toshiyuki Masuda, Kouji Shibata
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Patent number: 6645859Abstract: A manufacturing method of a semiconductor device allowing successful filling of an insulating film by HDP-CVD (High Density Plasma-Chemical Vapor Deposition) in a gap or valley between densely placed interconnections is provided. The method includes the steps of forming semiconductor elements on a semiconductor substrate, forming on the semiconductor elements a plurality of interconnections with top protective layers side by side to electrically connect the semiconductor elements, forming a protective insulating film by CVD other than HDP-CVD to cover top and side surfaces of the interconnections and a bottom surface of a gap between the interconnections, and forming an insulating film by HDP-CVD to cover the protective insulating film and to fill in the gap between the interconnections covered with the protective insulating film.Type: GrantFiled: June 14, 2002Date of Patent: November 11, 2003Assignees: Mitsubishi Denki Kabushiki Kaisha, Ryoden Semiconductor System Engineering CorporationInventors: Mahito Sawada, Hiroshi Tobimatsu, Kouji Oda, Yuuki Kamiura, Kouji Shibata, Hiroyuki Kawata
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Patent number: 6634800Abstract: In an optical connector ferrule comprising an insertion opening through which one end of a coated optical fiber with the coating removed is inserted. A guide groove is provided for guiding the bare fiber of the optical fiber. A fiber hole is provided for inserting therein the bare fibers guided by the guide groove. An injection port is provided for injecting therein adhesive for securing the coated optical fiber to the ferrule. Guide surfaces are provided for guiding the bare fiber to the guide grooves at sides of the guide groove. In the similar optical connector ferrule, there is provided an enlarged portion extending forwardly from a leading edge of the injection port in a fiber inserting direction and reaching a filling space into which the adhesive is filled. Further, a ceiling surface of the enlarged portion is inclined downwardly forwardly from the injection port.Type: GrantFiled: April 27, 2001Date of Patent: October 21, 2003Assignees: Furukawa Electric Co., Ltd., Nippon Telegraph and Telephone CorporationInventors: Katsuki Suematsu, Masato Shiino, Masao Shinoda, Koichi Maeno, Masaaki Takaya, Shinji Nagasawa, Kouji Shibata
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Publication number: 20020158527Abstract: A driving-side rotator of a clutch has a connecting hole, within which a connecting portion of a rotatable shaft is loosely fitted while providing a space between the connecting hole and the connection portion. The connecting hole of the driving-side rotator is engageable with the connecting portion of the rotatable shaft in a rotational direction to integrally rotate with connecting portion of the rotatable shaft. Two positioning holes are provided in a brush holder, and two positioning projections are provided in a gear housing to allow direct positioning of the brush holder and the gear housing relative to each other.Type: ApplicationFiled: April 12, 2002Publication date: October 31, 2002Inventors: Takenobu Kawakami, Keijiro Suzuki, Toshihiro Saitou, Tadashi Adachi, Hiroaki Yamamoto, Toshiyuki Masuda, Kouji Shibata
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Patent number: 6429603Abstract: The discharge lamp lighting apparatus includes: a direct current power supply E; switching elements Q1 and Q2 for switching a direct current supplied from the direct current power supply E so as to generate a high frequency current; a discharge lamp load circuit LAC1 which is constructed in a manner that a discharge lamp LA and a coupling capacitor C4 are connected in series, and the discharge lamp LA is lit by a high frequency current generated by the switching elements Q1 and Q2; a switching element control circuit IC1 for controlling the switching elements Q1 and Q2. The discharge lamp lighting apparatus is further provided with a protective circuit NP2 which distinguishes a fault of the discharge lamp LA by detecting a voltage generated in the coupling capacitor C4, and outputs a control signal to the switching element control circuit IC1.Type: GrantFiled: April 27, 2000Date of Patent: August 6, 2002Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Lighting CorporationInventors: Kazuhiko Tsugita, Kouji Shibata, Tetsuya Kobayashi, Isamu Ogawa, Kenji Hamazaki, Hiroaki Nishikawa, Naoki Wada, Osamu Ishikawa, Moriaki Okuda, Yasunori Ieki
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Publication number: 20010053266Abstract: In an optical connector ferrule comprising an insertion opening through a bare fiber, from which the coating is removed, of one end of a coated optical fiber is inserted, a guide groove for guiding the bare fiber inserted through the insertion opening, a fiber hole into which the bare fibers guided by the guide groove is inserted, and an injection port through which adhesive for securing the coated optical fiber to the ferrule is injected, guide surfaces for guiding the bare fiber to the guide grooves are formed at sides of the guide groove. In the similar optical connector ferrule, there is provided an enlarged portion extending forwardly from a leading edge of the injection port in a fiber inserting direction and communicated with a filling space into which the adhesive is filled. Further, a ceiling surface of the enlarged portion is inclined downwardly forwardly from the injection port.Type: ApplicationFiled: April 27, 2001Publication date: December 20, 2001Inventors: Katsuki Suematsu, Masato Shiino, Masao Shinoda, Koichi Maeno, Masaaki Takaya, Shinji Nagasawa, Kouji Shibata
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Patent number: 6026874Abstract: A pneumatic tire, which comprises a tread portion provided with a circumferential groove having a pair of side walls, in the axial direction of the tire the circumferential groove is disposed within the ground contacting width of the tread under a standard loaded state, the standard loaded state is such that the tire is mounted on its regular rim and inflated to 70% of its maximum air pressure and then loaded with 88% of its maximum load, the axial width of the circumferential groove is in the range of from 0.2 to 0.35 times the ground contacting width, and at least one of the side walls has a nonrectilinear configuration having a plurality of axially deviated parts, whereby the conditions of the resonance of the air in the circumferential groove are continuously changed during running to decrease air resonance noise thereby effectively reducing the tire noise.Type: GrantFiled: January 11, 1996Date of Patent: February 22, 2000Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kouji Shibata, Yoshiaki Uemura
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Patent number: 5830294Abstract: A pneumatic tire, which comprises a tread portion provided with a circumferential groove having a pair of side walls, in the axial direction of the tire the circumferential groove is disposed within the ground contacting width of the tread a standard loaded state, the standard loaded state is such that the tire is mounted on its regular rim and inflated to 70% of its maximum air pressure and then loaded with 88% of its maximum load, the axial width of the circumferential groove is in the range of from 0.2 to 0.35 times the ground contacting width, and at least one of the side walls has a nonrectilinear configuration having a plurality of axially deviated parts, whereby the conditions of the resonance of the air in the circumferential groove are continuously changed during running to decrease air resonance noise there by effectively reducing the tire noise.Type: GrantFiled: March 13, 1996Date of Patent: November 3, 1998Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kouji Shibata, Yoshiaki Uemura
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Patent number: 5803999Abstract: A pneumatic radial tire has a tread profile comprising a curved crown part having a radius of curvature R1, a pair of curbed middle parts having a radius of curvature R2 and a pair of curved shoulder parts having a radius of curvature R3 which extend continuously without forming any inflection point, wherein the radius R1 is in the range of from 2.0 to 3.5 times the tread width TW and is less than the radius R2 and more than the radius R3, and the camber quantity T1 which is the radial distance of the tread profile at the tread edges from the tread profile at the tire equator is 0.038 to 0.050 times the tread width TW.Type: GrantFiled: January 21, 1997Date of Patent: September 8, 1998Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kouji Shibata
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Patent number: 5472030Abstract: A pneumatic tire, which comprises a tread portion provided with a circumferential groove having a pair of side walls, in the axial direction of the tire the circumferential groove is disposed within the ground contacting width of the tread under a standard loaded state, the standard loaded state is such that the tire is mounted on its regular rim and inflated to 70% of its maximum air pressure and then loaded with 88% of its maximum load, the axial width of the circumferential groove is in the range of from 0.2 to 0.35 times the ground contacting width, and at least one of the side walls has a nonrectilinear configuration having a plurality of axially deviated parts, whereby the conditions of the resonance of the air in the circumferential groove are continously changed every moment during running to decrease air resonance noise thereby effectively reducing the tire noise.Type: GrantFiled: June 16, 1994Date of Patent: December 5, 1995Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kouji Shibata, Yoshiaki Uemura
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Patent number: 5178698Abstract: A pneumatic tire which has a tread portion (2) provided with a pair of circumferentially extending main grooves (G) one on each side of the tire equator (C) to define an axially outermost circumferential part (SH) between each main groove and each tread edge (E); each said axially outermost circumferential part (SH) provided with lateral grooves (gs) extending from the adjacent main groove to the adjacent tread edge to be divided into a row of circumferentially spaced shoulder blocks (BS); the shoulder blocks (BS) in each row having at least two different circumferential lengths; the first quotient (Lmax/Lmin) of the maximum (Lmax) of the circumferential lengths divided by the minimum (Lmin) thereof being in the range of 1.25 to 2.Type: GrantFiled: December 30, 1991Date of Patent: January 12, 1993Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kouji Shibata
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Patent number: 5099373Abstract: A head actuator for a disc drive and storage system having a plurality of discs and a plurality of read/write heads positioned on upper and lower surfaces of the discs. The head actuator includes a plurality of load springs. Each load spring has a plurality of through holes located at its inner end. A head is mounted to the outer end of each load spring for positioning the head on the upper or lower surface of a disc. The head actuator further includes an integrally formed head arm assembly. The head arm assembly has a plurality of parallel head arms integrally formed at their inner ends to a main head arm body member and extended in parallel therefrom such that they can be positioned between corresponding discs of the disc drive and storage system. Each head arm is formed with a plurality of through holes in its outer end for alignment with a plurality of corresponding through holes formed in each head load spring at its inner end.Type: GrantFiled: February 28, 1990Date of Patent: March 24, 1992Assignee: Fujitsu LimitedInventors: Kouji Shibata, Kojiro Mito, Kazuo Sakurai, Kohtoku Shishido
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Patent number: D349873Type: GrantFiled: April 1, 1993Date of Patent: August 23, 1994Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kouji Shibata, Atsuko Morita
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Patent number: D350091Type: GrantFiled: February 2, 1993Date of Patent: August 30, 1994Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kouji Shibata