Patents by Inventor Shunichi Hayashi
Shunichi Hayashi 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: 5914385Abstract: An addition type polyimide resin raw material composition having high heat resistance and high corrosion resistance comprising a tetracarboxylic anhydride and/or tetracarboxylic diester compound, diamine compound and exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride and/or exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic monoester compound; a composition containing a prepreg; a fiber-reinforced polyimide composite prepreg, coating material and paint using them; and a curing method thereof.Type: GrantFiled: December 4, 1996Date of Patent: June 22, 1999Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Noriya Hayashi, Naomoto Ishikawa, Yukihiro Sakaguchi, Shunichi Hayashi, Hitoshi Noda
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Patent number: 5692936Abstract: A moisture-permeable waterproof fabric comprising a textile fabric and, provided on at least one surface of said textile fabric, a resin film comprising a polyurethane resin produced by reacting an isocyanate with a polyol and a chain extender and having a glass transition temperature in the range of from -20.degree. to 20.degree. C. and an ethylene oxide unit content of at least 7.0 mol/kg. The moisture-permeable waterproof fabric is produced by coating at least one surface of a textile fabric with a solution of a resin in a polar organic solvent, the resin comprising a polyurethane resin, and subjecting the coating to wet solidification in a coagulation bath to form a film, or coating a release paper with a solution of a resin in a polar organic solvent, the resin comprising a polyurethane resin, to form a resin film and adhering the resin film on at least one surface of a textile fabric.Type: GrantFiled: April 22, 1996Date of Patent: December 2, 1997Assignees: Komatsu Seiven Co., Ltd., Mitsubishi Jokogyo Kabushiki KaishaInventors: Munehide Yamaguchi, Hideki Chatani, Shunichi Hayashi, Yukihiro Sakaguchi, Satoru Kondo
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Patent number: 5441489Abstract: A catheter consists of a torque transmitting portion which has rigidity sufficient for torque transmission and a flexible portion made of a material having a glass transition temperature for giving rigidity before insertion and flexibility after insertion. The torque transmitting portion maintains torque transmitting ability before, during and after insertion. The flexible portion maintains appropriate rigidity before and during insertion, which enables easy insertion, and gains flexibility after insertion by the body heat, which avoids hurting of the vulnerable insertion walls. Further, the torque transmitting portion may have a structure wherein a reinforcement of a coil or a braid of linear metal wires, specifically flat rectangular wires, is attached thereto to afford torque transmitting ability. Catheters having various functions and structures can be easily manufactured by extrusion-molding, or the like.Type: GrantFiled: February 14, 1991Date of Patent: August 15, 1995Assignees: Mitsubishi Cable Industries, Ltd., Mitsubishi Jukogyo Kabushiki KaishaInventors: Atsushi Utsumi, Yukio Morita, Tamotsu Kaide, Kazuo Onishi, Shunichi Hayashi
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Patent number: 5155199Abstract: Disclosed is a makeup material for human use containing a shape memory polymer shaped into fine spheres. The shape memory polymer used is a polyurethane that is obtained by polymerizing with the prepolymer method a composition of a bifunctional diisocyanate, a bifunctional polyol, and a bifunctional chain extender with active hydrogen groups in the mole ratio of diisocyanate:polyol:chain extender=2.00-1.10:1.00:1.00-0.10. The polyurethane is preferred to have approximately equal amounts of NCO groups and OH groups at its ends, and a glass transition point above the human body temperature, and a crystallinity value between 3 to 50 wt %.Type: GrantFiled: October 25, 1989Date of Patent: October 13, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventor: Shunichi Hayashi
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Patent number: 5145935Abstract: A shape memory polyurethane elastomer molded article formed from a polyurethane elastomer which has a degree of crystallinity of 3.about.50 wt %, contains approximately equal amounts of [NCO] groups and [OH] groups at the terminals of the polymer, and is polymerized by the prepolymer method from a difunctional diisocyanate, a difunctional polyol, and a difunctional chain extender containing active hydrogen groups, which are formulated in a molar ratio of diisocyanate: polyol: chain extender=2.00.about.1.10: 1.00: 1.00.about.0.10, preferably 1.80.about.1.20: 1.00: 0.80.about.0.20. It is capable of melt molding such as injection molding, extrusion molding, and blow molding, and can be manufactured freely without being restricted by the shape of the molded article.Type: GrantFiled: September 28, 1989Date of Patent: September 8, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventor: Shunichi Hayashi
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Patent number: 5139832Abstract: A shape memory film formed from a shape memory transparent polymer, said shape memory film being capable of remembering a basic shape such as plane configuration and dead folds, taking on a second shape when the basic shape is modified (by changing the plane configuration and adding dead folds, twists, three-dimensional configurations, etc.) at a temperature higher than the glass transition point of the polymer and lower than the molding temperature of the polymer, and having the second shape set when cooled to a temperature lower than the glass transition point while being kept in the second shape; and a method of using said shape memory film by setting the second shape and subsequently heating the film to a temperature higher than the glass transition point, thereby causing the film to restore its basic shape.Type: GrantFiled: October 12, 1989Date of Patent: August 18, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Shunichi Hayashi, Hiroshi Fujimura, Makoto Shimizu
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Patent number: 5135786Abstract: A shape memory transparent body formed from a shape memory transparent polymer having a glass transition point higher than the temperature at which the transparent body is used, said transparent body remembering a basic shape, taking on a second shape upon heating to a temperature higher than the glass transition point and subsequent cooling to a temperature lower than the glass transition point, with the transparent body kept deformed by an external force for the setting of the deformed shape, and restoring the basic shape upon heating to a temperature higher than the glass transition point; and a method of using the shape memory transparent body.Type: GrantFiled: March 18, 1991Date of Patent: August 4, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Shunichi Hayashi, Yoshiaki Wakita
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Patent number: 5128197Abstract: A woven fabric woven from fibers of a shape memory polymer alone or a blend of said fibers and ordinary natural or synthetic fibers.Type: GrantFiled: October 12, 1989Date of Patent: July 7, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Kazuyuki Kobayashi, Shunichi Hayashi
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Patent number: 5098776Abstract: A fibrous sheet having the shape memory property which comprises a sheet made of natural fiber and/or synthetic fiber and a layer formed by applying a powder of shape memory polymer; and a method of imparting the shape memory property which comprises applying a powder of shape memory polymer to a desired part of a product of a sheet made of natural fiber and/or synthetic fiber by the aid of a resin adhesive.Type: GrantFiled: October 25, 1989Date of Patent: March 24, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Kazuyuki Kobayashi, Shunichi Hayashi
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Patent number: 5093384Abstract: A heat insulator made of shape memory polymer foam which has good moldability and changes greatly in elastic modulus above and below its glass transition point, and a heat insulator as mentioned above in which the polymer foam is polyurethane produced by prepolymer process from a composition containing a blowing agent, said composition being composed of a difunctional diisocyanate, a difunctional polyol, and a difunctional chain extender containing active hydrogen in a molar ratio of 2.00-1.10:1.00:1.00-0.10, said polyurethane containing approximately equal amounts of NCO groups and OH groups at the terminals of the molecular chains and having a glass transition point of -50.degree. to 60.degree. C. and crystallinity of 3 to 50 wt %.Type: GrantFiled: October 18, 1989Date of Patent: March 3, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Shunichi Hayashi, Akira Ishibashi, Tetsuyoshi Ikenoue
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Patent number: 5049591Abstract: A shape memory polymer foam which takes on a deformed shape and an as-molded shaped, said deformed shape being produced when the polymer foam is compressed at a temperature higher than the glass transition point (Tg) of the polymer and then kept compressed at a temperature lower than the Tg until compression sets, said as-molded shape being produced when the compressed polymer foam is heated again to a temperature higher than the Tg until it recovers its original shape.Type: GrantFiled: September 28, 1989Date of Patent: September 17, 1991Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Shunichi Hayashi, Hiroshi Fujimura
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Patent number: 4961409Abstract: An improved control apparatus includes an auto-choke for an engine provided by interlocking a choke lever and a throttle lever of a carburetor by way of a temperature-sensitive interlocking rod. The choke lever of the carburetor is provided with a spring for resiliently biasing the choke valve toward its open position. The interlocking rod is made of high molecular material such as high molecular urethane elastomer or the like and has a buckling threshold which varies in dependence upon the temperature. Upon fully opening the throttle valve when the engine is cold, the interlocking rod acts so as to close the choke. Whereas, when the throttle valve is opened when the engine is hot the interlocking rod acts to open the choke under the biasing force of the spring. A speed regulating device is connected to the throttle lever.Type: GrantFiled: June 8, 1989Date of Patent: October 9, 1990Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Kazuyuki Kobayashi, Shunichi Hayashi
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Patent number: 4677020Abstract: A moulded product of a fiber reinforced plastic comprises a core consisting of a plastic matrix admixed with relatively short fibers and an outer circumferential section or a specific local section consisting of a plastic matrix admixed with relatively long fibers. This invention also provides a blank of fiber reinforced plastic formed preliminarily to a given form comprising a core section consisting of a plastic matrix admixed with relatively short fibers and an outer circumferential section or a specific local section consisting of a plastic matrix admixed with relatively long fibers. Also, this invention is concerned with a method of forming a fiber reinforced plastic product having the improved character noted above.Type: GrantFiled: August 13, 1985Date of Patent: June 30, 1987Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Koichi Takagi, Shunichi Hayashi
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Patent number: 4504571Abstract: A method of peel development comprising laminating an image-forming material comprising a transparent support and a photopolymerizable composition layer on the surface of a substrate on which an image is formed, imagewise exposing the image-forming material, and peeling the support from the substrate together with the unexposed areas of the photopolymerizable composition layer while leaving the exposed areas thereof on the substrate, wherein the cohesive strength of the photopolymerizable composition layer is set such that the force required to separate the unexposed areas from the exposed areas is at least 1.0 kg/mm.sup.2 and the peeling operation is performed while maintaining a peel angle (.alpha.) of the support to the substrate within the range of 0.degree.<.alpha..ltoreq.90.degree.. This method enables the formation of sharp images on the substrate while allowing for the easy separation of the unexposed areas from the exposed areas.Type: GrantFiled: March 30, 1984Date of Patent: March 12, 1985Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Yutaka Yamamura, Tomomichi Kaneko, Shunichi Hayashi
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Patent number: 4271061Abstract: In an epoxy resin composition for sealing a semiconductor element containing about 50 to 85% by weight of an inorganic filler, the improvement wherein the inorganic filler comprises at least a silica powder and a calcium silicate powder, and the amount of said calcium silicate powder is about 20 to 75% by weight and the amount of the silica powder is about 25 to 80% by weight based on the total weight of the silica powder and calcium silicate powder.Type: GrantFiled: March 6, 1980Date of Patent: June 2, 1981Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Hideto Suzuki, Shunichi Hayashi, Takahiro Yoshioka