Patents by Inventor Hiroshi Kawasaki
Hiroshi Kawasaki 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: 4665125Abstract: A thermoplastic resin composition having excellent heat resistance, impact resistance, moldability and platability, which comprises:(i) from 10 to 90% by weight of a thermoplastic polycarbonate;(ii) from 10 to 90% by weight of a graft copolymer obtained by firstly polymerizing a monomer mixture comprising more than 30 and not more than 50% by weight of acrylonitrile and at least 50 and less than 70% by weight of styrene, as monomers for the first stage of graft polymerization, in the presence of a rubber-like polymer, and then polymerizing a monomer mixture comprising from 15 to 40% by weight of acrylonitrile and from 60 to 85% by weight of .alpha.Type: GrantFiled: November 15, 1985Date of Patent: May 12, 1987Assignee: Mitsubishi Rayon Company LimitedInventors: Kazuo Kishida, Hiroshi Kawasaki, Hideyuki Shigemitsu
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Patent number: 4649102Abstract: A silver halide photographic light-sensitive material is described, comprising a support having provided thereon at least one silver halide emulsion layer, wherein there is at least one hydrophilic colloidal layer containing at least one nonionic surface active agent and at least one anionic surface active agent having a polyoxyethylene group therein.Type: GrantFiled: January 10, 1986Date of Patent: March 10, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Mukunoki, Shigeki Yokoyama, Hiroshi Kawasaki, Ryoichi Nemori, Tetsuo Takeuchi
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Patent number: 4596766Abstract: A silver halide photographic material is disclosed comprising a support having thereon at least one layer containing a nonionic surface active agent having a polyoxyethylene group and a fluorine-containing compound, wherein the element composition of the surface of said layer has a ratio of F.sub.ls peak intensity/C.sub.ls peak intensity in the range of 0.3 to 2.0 when measured by an X-ray photoelectron spectrometry.Type: GrantFiled: October 9, 1984Date of Patent: June 24, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Ryoichi Nemori, Hiroshi Kawasaki, Yasuo Mukunoki
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Patent number: 4565269Abstract: A hydraulically operated friction clutch suitable for use in motorcycle. The clutch has driving and driven friction discs axially slidably mounted on a clutch outer and a clutch inner, respectively. These friction discs are adapted to be pressed onto a pressure receiving plate by a pressing plate to make friction driving engagement between the clutch outer and the clutch inner. An annular carrier integrated with the pressing plate is disposed at the opposite side of the clutch inner to the pressing plate. A pressure receiving member is mounted on the center of the carrier through a release bearing adjacent to the end of a driven shaft connected to the clutch inner. The pressure receiving member has a cylindrical form closed at its one end and provided at its open end with a flange which is retained by the inner race of the release bearing. The pressure receiving member is coaxially and axially movably received in a bore formed in the driven shaft.Type: GrantFiled: February 13, 1984Date of Patent: January 21, 1986Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Kawasaki, Kazuoki Ukiana
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Patent number: 4558001Abstract: A silver halide photographic light-sensitive material is disclosed wherein at least one gelatin-containing layer thereof contains at least one nonionic surface active agent having reactive groups, the agent being represented by the following formula (I), (II) or (III) ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 ' each represents a hydrogen atom or a halogen atom, or an unsubstituted or substituted alkyl, aryl, alkoxyl, acyl, amido, sulfonamido, carbamoyl, or sulfamoyl group; R.sub.3 and R.sub.4 each represents a hydrogen atom, an unsubstituted or substituted alkyl or aryl group, or a heteroaromatic ring, R.sub.3 and R.sub.4 may combine to form a ring; m.sub.1 and m.sub.2, which may be the same or different, are 2 to 40, each representing the average degree of polymerization of ethylene oxide; m.sub.3 is 0 or 1; and n.sub.1 and n.sub.2 represent the ratios in the copolymer, and n.sub.1 is 1 to 100 and n.sub.2 is 0 to 99, the sum thereof being 100.Type: GrantFiled: April 13, 1984Date of Patent: December 10, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeki Yokoyama, Hisashi Okamura, Yukio Maekawa, Hiroshi Kawasaki
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Patent number: 4543441Abstract: A solar battery has a pair of opposed light incident transparent electroconductive and back electrodes sandwiching amorphous silicon layers formed on a substrate with at least a major surface of the back electrode surface being in contact with an organic resin layer and being made of a compound of a transition metal and silicon, a compound of a transition metal and nitrogen, or a compound of a transition metal and carbon. Excellent corrosion resistance of the back electrode is obtained and the battery has high performance and high reliability.Type: GrantFiled: February 13, 1984Date of Patent: September 24, 1985Assignee: Hitachi, Ltd.Inventors: Masaharu Kumada, Hideo Tanabe, Katsuo Yuhara, Akira Misumi, Hiroshi Kawasaki
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Patent number: 4528330Abstract: Disclosed is a resin composition which is usable for an exterior article without being coated on its surface when molded into the article and is excellent in the color tone and has good impact resistance and weatherability, said composition comprising (I) 10 to 70% by weight of a high-rubber-content graft polymer obtained by polymerizing 50 to 10% by weight of a monomer mixture (C) comprising 10 to 90% by weight of at least one aromatic vinyl monomer and 90 to 10% by weight of at least one ethylenically unsaturated monomer represented by the following general formula:CH.sub.2 .dbd.CRXwherein R stands for a hydrogen atom or methyl group, and X stands for a group --CN or --COOR.sub.1 in which R.sub.1 stands for an alkyl group having 1 to 8 carbon atoms,in the presence of a latex of a multi-layer crosslinked acrylic rubber particles containing 5 to 30% by weight of a rigid crosslinked resin (A) having a core particle size of 0.15 to 0.45.mu.Type: GrantFiled: November 1, 1982Date of Patent: July 9, 1985Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kazuo Kishida, Akira Hasegawa, Yasunori Kawachi, Hiroshi Kawasaki, Hiroshi Mizukoshi
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Patent number: 4526929Abstract: Disclosed is a resin composition which is usable for an exterior article without being coated on its surface when molded into the article and is excellent in the color tone and has good impact resistance and weatherability, said composition comprising (I) 10 to 70% by weight of a high-rubber-content graft polymer obtained by polymerizing 50 to 10% by weight of a monomer mixture (C) comprising 10 to 90% by weight of at least one aromatic vinyl monomer and 90 to 10% by weight of at least one ethylenically unsaturated monomer represented by the following general formula:CH.sub.2 .dbd.CRXwherein R stands for a hydrogen atom or methyl group, and X stands for a group --CN or --COOR.sub.1 in which R.sub.1 stands for an alkyl group having 1 to 8 carbon atoms, in the presence of a latex of a multi-layer crosslinked acrylic rubber particles containing 5 to 30% by weight of a rigid crosslinked resin (A) having a core particle size of 0.15 to 0.40.mu.Type: GrantFiled: July 20, 1981Date of Patent: July 2, 1985Assignee: Mitsubishi Rayon Company, LimitedInventors: Kazuo Kishida, Akira Hasegawa, Yasunori Kawachi, Hiroshi Kawasaki, Hiroshi Mizukoshi
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Patent number: 4518354Abstract: A silver halide photographic light-sensitive material is disclosed. The photographic material is comprised of a support base, a silver halide emulsion layer and an antistatic layer. The antistatic layer contains a nonionic surface active agent having two polyoxyethylene chains in a molecule represented by the formula (I): ##STR1## wherein R.sub.1 and R.sub.3 each represents a substituted or unsubstituted alkyl group, an aryl group, an alkoxy group, a halogen atom, an acyl group, an amido group, a sulfonamido group, a carbamoyl group or a sulfamoyl group, R.sub.2 and R.sub.4 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, an aryl group, an alkoxy group, a halogen atom, an acyl group, an amido group, a sulfonamido group, a carbamoyl group or a sulfamoyl group, R.sub.5 represents a hydrogen atom, a methyl group or an .alpha.-furyl group, and m and n independently represents an average degree of polymerization of ethylene oxide, which is 2 to 40.Type: GrantFiled: May 23, 1983Date of Patent: May 21, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeki Yokoyama, Akira Hibino, Yukio Maekawa, Hiroshi Kawasaki
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Patent number: 4510233Abstract: A silver halide photographic light-sensitive material comprised of a support base having thereon a silver halide emulsion layer and an antistatic layer. The antistatic layer contains a nonionic surface active agent having two polyoxyethylene chains in a molecule, the agent being represented by the formula (I): ##STR1## wherein R.sub.1 and R.sub.3 each represents a substituted or non-substituted alkyl, aryl, alkoxy, aryloxy, acyl, amido, sulfonamido, carbamoyl or sulfamoyl group, or a halogen atom, R.sub.2 and R.sub.4 each represents a hydrogen atom, a substituted or nonsubstituted alkyl, aryl, alkoxy, aryloxy, acyl, amido, sulfonamido, carbamoyl or sulfamoyl group, or a halogen atom, R.sub.5 and R.sub.6 each represents a hydrogen atom, or a substituted or nonsubstituted alkyl or aryl group, wherein the sum total of carbon atoms in R.sub.5 and R.sub.6 is 2 or more, or R.sub.5 and R.sub.Type: GrantFiled: May 27, 1983Date of Patent: April 9, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeki Yokoyama, Akira Hibino, Yukio Maekawa, Hiroshi Kawasaki
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Patent number: 4407939Abstract: A photographic light-sensitive material composed of a support having a subbing layer and a silver halide emulsion layer formed thereon. The subbing layer comprised of a first subbing layer disposed to the support and a second subbing layer containing (i) a gelatin derivative and/or (ii) a polymer having the recurring unit shown by general formula (I) and/or (II) ##STR1## wherein R is a hydrogen, an alkyl group having 1 to 6 carbons, or a halogen; M is hydrogen, an alkali metal, an alkaline earth metal, or an organic base; X is an alkyl group having 1 to 6 carbons, an alkoxy group having 1 to 6 carbons, an alkylamino group having 1 to 6 carbons, or a halogen; m is 0, 1 or 2; and n is 1 or 2 ##STR2## wherein R' is hydrogen or an alkyl group; X' is a hydrogen, a halogen, a nitro group, a cyano group, an alkyl group, an alkoxy group, an alkoxycarbonyl group, an alkylsulfonyl group, an aryloxy group, an acyl group, an acyloxy group, or an acylamido group; m' is 0, 1 or 2; and n' is 1 or 2.Type: GrantFiled: April 2, 1981Date of Patent: October 4, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Naoi, Hiroshi Kawasaki, Jun Yamaguchi, Sumitaka Tatsuta, Hidefumi Sera
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Patent number: 4373601Abstract: A power transmission device of a motorcycle comprising a main transmission case formed integrally with an engine crank case and accommodating a main transmission, and a sub-transmission case provided at the rear side of the main mission case. The sub-transmission case accommodates a sub-transmission which is drivingly connected to the main transmission and also to a rear wheel of the motorcycle through a transmission mechanism. The transmission mechanism and the sub transmission are disposed at opposite sides of the rear wheel. The sub-transmission case is composed of a case body and a cover for covering an opening of the case body. The opening is formed at a lateral side of the gears of the sub-transmission so that the gears are accessible and replaceable by removing the cover from the opening.Type: GrantFiled: September 18, 1980Date of Patent: February 15, 1983Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takanori Onda, Hiroshi Kawasaki, Mitsukuni Misawa
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Patent number: 4352092Abstract: A digital to analog converter is provided which comprises first and second reference voltage terminals to which are supplied positive voltages, a voltage divider which comprises a plurality of resistors connected in series between the first and second reference voltage terminals, and a switch array part connected to the voltage divider for producing a voltage according to the digital signal supplied to the gate terminals. The switch array part comprises CMOS field effect transistor circuits in which the first channel MOS field effect transistors are arranged at one side of the voltage divider, the second channel MOS field effect transistors are arranged at the other side of it, and the wirings of both channel field effect transistors cross the voltage driver with electrically insulated form from the voltage divider. The p-type well region as the back gate of the NMOS field effect transistor is connected to the reference voltage terminal to which a lower positive voltage is supplied.Type: GrantFiled: October 17, 1980Date of Patent: September 28, 1982Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Eiji Masuda, Hiroshi Kawasaki
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Patent number: 4172685Abstract: A container crane system comprises a storage area on a crane for storing containers temporarily, a main spreader adapted for conveyance of the containers between the storage area and a ship so constructed that the containers are guided by a cell guide and stowed into a hatch of the ship, and an auxiliary spreader adapted for conveyance of the containers between the storage area and a transport system prepared on the land to the rear of the crane. The main spreader is operated automatically according to operation schedules which are previously stored in a memory by a teaching operation and whose variable components are corrected during the automatic operation through a corrective (or modified) playback operation, while the auxiliary spreader is automatically operated through a programmed operation schedule.Type: GrantFiled: October 14, 1977Date of Patent: October 30, 1979Assignee: Hitachi, Ltd.Inventors: Yasuo Nabeshima, Hiroshi Kawasaki, Kengo Sugiyama
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Patent number: 4066860Abstract: Pushbutton switch configurations are provided in which one or a plurality of pushbutton switches are formed with integrated bases, actuating springs and key top structures to facilitate fabrication of arrays of such switches in a substantially unitary matrix or in line configuration. In a preferred embodiment a metal base is etched to form spring and key top frame patterns which are press formed into key top and vertically extending supporting spring structures integral with the base plate in a desired matrix or line configuration. Epoxy or similar resin material can then be integrated with the key top frame to complete each pushbutton switch. Suitable operating indicia are press formed or etched in the key top surfaces and contrasted with resin as desired.Type: GrantFiled: September 25, 1975Date of Patent: January 3, 1978Assignee: Sharp Kabushiki KaishaInventor: Hiroshi Kawasaki