Patents by Inventor Shigeyuki Sasaki
Shigeyuki Sasaki 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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Publication number: 20060073584Abstract: A chemical analyzing apparatus accommodates therein a structure for retaining a sample and reagents. A detecting mechanism detects the sample after reaction with a reagent. After or during extraction of a biological substance from the sample in the structure, a temperature of a fluid in a space around the structure is controlled to a value which is suitable for enzyme.Type: ApplicationFiled: September 30, 2005Publication date: April 6, 2006Inventors: Shigeyuki Sasaki, Yoshihiro Nagaoka, Hirotoshi Ishimaru, Nobuyuki Maki, Toshiaki Yokobayashi, Michihiro Saito, Taisaku Seino
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Publication number: 20050176880Abstract: Disclosed is a solvent-borne metallic base coating composition which comprises (A) an urea-contained acrylic resin, (B) a urethane-modified polyester resin, (C) a curing agent and (D) a luster pigment, wherein a solid weight ratio of the urea-contained acrylic resin (A)/the urethane-modified polyester resin (B) is within the range of from 60/40 to 95/5. The resin coating composition can form metallic coatings having high color phase difference between looking at high light position and looking at shade position, in particular those having high FF property, excellent appearance (surface texture) and transparency.Type: ApplicationFiled: February 9, 2005Publication date: August 11, 2005Inventors: Hiroaki Fujii, Norikuni Tabii, Shigeyuki Sasaki
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Publication number: 20040096590Abstract: The present invention provides an aqueous coating composition wherein the resulting coating film has good visual appearance and excellent flip-flop properties, and a method for formation of a multilayer coating film. The aqueous coating composition comprising: an aqueous resin dispersion which is obtained by solution-polymerizing a monomer mixed solution A having an acid value of 30 to 150 and a hydroxyl group value of 10 to 100 in an organic solvent, thereby to synthesize a copolymer solution, converting the copolymer solution into an aqueous solution, removing the organic solvent under reduced pressure to obtain an aqueous solution resin for emulsion polymerization, and then emulsion-polymerizing a monomer mixed solution B having an acid value of 20 as an upper limit and a hydroxyl group value of 100 as an upper limit using the aqueous solution resin for emulsion polymerization as a protective colloid, thereby to synthesize a core resin in the protective colloid; and a glitter material.Type: ApplicationFiled: September 8, 2003Publication date: May 20, 2004Inventors: Shigeyuki Sasaki, Hideaki Ogawa, Shinji Seo, Tadahiko Nishi
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Patent number: 6726961Abstract: It is an object of the present invention to provide a method of forming a composite coating film having high flip-flop properties by applying a water-based base coat coating to a substrate, then applying a clear top coat coating thereonto and curing both coatings simultaneously while controlling the interlayer imbibing or inversion of coating films under high humidity conditions. The present invention provides a method of forming a composite coating film by applying a water-based base coat coating to a substrate and then applying a clear top coat coating thereonto, wherein the water-based base coat coating comprises: a polyether polyol having at least 0.02 primary hydroxyl group, on average, per molecule, a number average molecular weight of 300 to 3,000 and a water tolerance of not less than 2.Type: GrantFiled: February 26, 2001Date of Patent: April 27, 2004Assignee: Nippon Paint Co., Ltd.Inventors: Manabu Yoshioka, Shigeyuki Sasaki, Hifumi Egusa, Atsuo Magoshi
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Publication number: 20030175435Abstract: The present invention provides a water-borne base coating composition for automobiles which can give a coating film excellent in luster and in coloration.Type: ApplicationFiled: February 11, 2003Publication date: September 18, 2003Inventors: Tsuyoshi Harakawa, Hideaki Ogawa, Shigeyuki Sasaki, Takashi Nakano, Hirofumi Oi
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Publication number: 20020009550Abstract: It is an object of the present invention to provide a method of forming a composite coating film having high flip-flop properties by applying a water-based base coat coating to a substrate, then applying a clear top coat coating thereonto and curing both coatings simultaneously while controlling the interlayer imbibing or inversion of coating films under high humidity conditions.Type: ApplicationFiled: February 26, 2001Publication date: January 24, 2002Applicant: Nippon Paint Co., Ltd.Inventors: Manabu Yoshioka, Shigeyuki Sasaki, Hifumi Egusa, Atsuo Magoshi
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Publication number: 20020007769Abstract: It is an object of the present invention to provide a water-based metallic coating composition capable of providing coatings having a better appearance, superior in luster, even under high humidity conditions, as compared with the prior art water-based coating compositions.Type: ApplicationFiled: February 26, 2001Publication date: January 24, 2002Applicant: Nippon Paint Co., Ltd.Inventors: Manabu Yoshioka, Shigeyuki Sasaki, Hifumi Egusa, Atsuo Magoshi
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Patent number: 5959351Abstract: There is disclosed a liquid-cooled electronic device. Semiconductor devices are mounted on a substrate of a semiconductor module immersed in a cooling liquid. A wire-like member is provided in the vicinity of a cooling medium ejection port of each cooling medium supply member which cools a respective one of the semiconductor devices by a jet of the cooling liquid. With this arrangement, the flow of the cooling liquid downstream of the wire-like member is disturbed to promote the boiling over the entire surface of the semiconductor device, and when the semiconductor device is to be cooled, a transient temperature rise is reduced at the time of starting the energization of the semiconductor device, thereby stabilizing the temperature of the semiconductor device.Type: GrantFiled: August 9, 1993Date of Patent: September 28, 1999Assignee: Hitachi, Ltd.Inventors: Shigeyuki Sasaki, Tadakatsu Nakajima, Noriyuki Ashiwake, Yasuo Ohsone, Toshio Hatada, Toshiki Iino, Akio Idei, Kenichi Kasai
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Patent number: 5932658Abstract: The present invention provides a curable resin composition having good curability and storage stability, which provides a cured film having excellent weather resistance, acid resistance and mar resistance. The curable resin composition comprises:(a) 20 to 80% by weight of a polycarboxylic acid having an acid value of 25 to 300 mg KOH/g based on solid and a number average molecular weight of 500 to 20000; and(b) 20 to 80% by weight of a polyepoxide having an epoxy equivalent of 100 to 800 and a number average molecular weight of 500 to 20000, prepared by copolymerizing: (1) 10 to 60% by weight of a long-chain epoxy monomer; and (2) 40 to 90% by weight of an ethylenically unsaturated monomer having no epoxy group. The present invention also provides a process for forming a cured film using the resin composition.Type: GrantFiled: June 24, 1996Date of Patent: August 3, 1999Assignee: Nippon Paint Co., Ltd.Inventors: Yasuo Tanaka, Takeshi Takagi, Shigeyuki Sasaki, Makoto Shimizu, Yoshitaka Okude
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Patent number: 5774334Abstract: Semiconductor devices are fixed on a substrate by solder and a semiconductor module having an enclosed structure is formed by the substrate, flanges and a housing. Two groups of heat conducting members, each having fins respectively in contract with the semiconductor devices and an inner wall of the housing are attached to the semiconductors. A fin thickness of each fin of the two groups of heat conducting members is comparatively thick, a fin height is low and the respective fins of the respective opposed heat conducting members have with very small clearances therebetween. A liquid as a heat conducting medium is enclosed in the semiconductor module. The liquid level of the semiconductor module is controlled such that it contacts a uppermost semiconductor device in the semiconductor module in a vertical arrangement. Further, valve mechanisms for introducing and removing a cooling fluid are provided at a top face and a bottom face of a space formed in the semiconductor module.Type: GrantFiled: August 28, 1995Date of Patent: June 30, 1998Assignee: Hitachi, Ltd.Inventors: Keizo Kawamura, Noriyuki Ashiwake, Takahiro Daikoku, Akio Idei, Kenichi Kasai, Hideyuki Kimura, Atsuo Nishihara, Toshio Hatada, Shigeyuki Sasaki
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Patent number: 5766767Abstract: The present invention provides a clear liquid coating composition comprising (a) a compound having at least 2 carboxyl groups, (b) a compound having at least 2 epoxy groups, (c) 0.01 to 3.0 parts by weight based on 100 parts by weight of the total resin solid of an onium salt, which is used as a top coating composition for a pre-coated surface.Type: GrantFiled: August 27, 1996Date of Patent: June 16, 1998Assignee: Nippon Paint Co., Ltd.Inventors: Tsuneyoshi Hisai, Shigeyuki Sasaki, Takeshi Takagi, Yoshitaka Okude, Akira Fushimi, Hiroto Yoneda
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Patent number: 5556669Abstract: The present invention provides a curable resin composition which provides cured film having not only excellent acid resistance but also good weather resistance, good mar resistance and seal cracking resistance because of its high extensibility. The curable resin composition comprises (a) 20 to 80% by weight of a polymer having carboxyl and carboxylate groups; and (b) 2% to 80% by weight of a polymer having hydroxyl and epoxy groups. The present invention also provides a process for forming a cured film using the resin composition.Type: GrantFiled: December 11, 1995Date of Patent: September 17, 1996Assignee: Nippon Paint Co., Ltd.Inventors: Shigeyuki Sasaki, Takeshi Takagi, Yoshitaka Okude
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Patent number: 5508352Abstract: The present invention provides, a curable resin composition and a process for forming a cured film therefrom wherein the cured film has not only excellent acid resistance but also good weather resistance, good mar resistance and sealer cracking resistance because of its high extensibility, The curable resin composition comprises (a) 20 to 80% by weight of a polymer having carboxyl and carboxylate groups; and (b) 20 to 80% by weight of a polymer having hydroxyl and epoxy groups.Type: GrantFiled: February 9, 1995Date of Patent: April 16, 1996Assignee: Nippon Paint Co., Ltd.Inventors: Shigeyuki Sasaki, Takeshi Takagi, Yoshitaka Okude
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Patent number: 5406807Abstract: An apparatus for cooling semiconductor devices includes a module for cooling semiconductor devices; a refrigerant cooling device for receiving via an outlet pipe the refrigerant discharged through an outlet port of the module to cool the refrigerant; a refrigerant circulation pump for receiving, via a suction pipe, the refrigerant cooled by the refrigerant cooling device and sending the refrigerant to the module via an inlet pipe; and a refrigerant-flow stabilizing mechanism for stabilizing a refrigerant circulation flow discharged from the refrigerant circulation pump to be returned to the refrigerant circulation pump via the module and the refrigerant cooling device. Since the refrigerant-flow stabilizing mechanism stabilize the refrigerant flow, the refrigerant flow can be stably circulated so that the semiconductor devices in the module are stably cooled.Type: GrantFiled: June 16, 1993Date of Patent: April 18, 1995Assignee: Hitachi, Ltd.Inventors: Noriyuki Ashiwake, Tadakatsu Nakajima, Shigeyuki Sasaki, Yasuo Ohsone, Toshio Hatada, Toshiki Iino, Kenichi Kasai, Akio Idei
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Patent number: 5310699Abstract: A method of manufacturing a semiconductor device with a bump-electrode of gold crystal is disclosed. The method includes providing a semiconductor substrate, an insulative layer, an electrode section, passivation layer on the edge portion of the electrode section, a multi-layer film, and a bump electrode of gold crystal. The method further includes heat treatment of the bump electrode to form an anticorrosive layer between the electrode section and the lower layer of the multi-layer film. Removing the unnecessary multi-layer film, the anticorrosive layer is used as a mask for etching to simplify the process of manufacturing the semiconductor device.Type: GrantFiled: June 29, 1992Date of Patent: May 10, 1994Assignee: Sharp Kabushiki KaishaInventors: Yasunori Chikawa, Shigeyuki Sasaki, Katsunobu Mori, Takamichi Maeda, Masao Hayakawa
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Patent number: 5270572Abstract: A semiconductor cooling unit for directly jetting a cooling medium against surfaces of semiconductor devices for use in a high-speed computer or the like to effectively remove heat from the semiconductor devices, in which partition members for partitioning a space into regions where semiconductor devices are placed. Each partitioned region has an opening at its ceiling side, and a pipe for supplying or discharging the cooling medium through the opening is disposed so as to project toward a central portion of the back surface of each semiconductor device. This pipe is utilized to also section a cooling medium supply header or a cooling medium return header so that bubbles generated from the semiconductor device surfaces can be smoothly removed, and so that the cooling medium can flow smoothly onto the semiconductor devices.Type: GrantFiled: June 24, 1992Date of Patent: December 14, 1993Assignee: Hitachi, Ltd.Inventors: Tadakatsu Nakajima, Shigeo Ohashi, Heikichi Kuwahara, Noriyuki Ashiwake, Motohiro Sato, Toshio Hatsuda, Takahiro Daikoku, Toshio Hatada, Shigeyuki Sasaki, Hiroshi Inouye, Atsuo Nishihara, Kenichi Kasai