Patents by Inventor Kenji Minami
Kenji Minami 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: 5965715Abstract: The invention provides novel bisazo compounds which is obtained by coupling two molecules of a 2-hydroxynaphthalene-3,6-dicarboxylic acid derivative and a compound having two diazo groups in its molecule, as well as a process for producing the same. The present compounds are superior in resistance to water, chemical agents, solvents, heat and the like.Type: GrantFiled: June 22, 1998Date of Patent: October 12, 1999Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Masaya Kitayama, Kenji Minami, Hiroyuki Wakamori
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Patent number: 5847233Abstract: A naphthol derivative represented by the general formula (I) ?wherein Y and Y' indicate --(CONH).sub.n --X or --COR; X is a phenyl group, a naphthyl group, an anthraquinonyl group, a benzimidazolonyl group or a carbazolyl group; R is a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, a halogen atom, a benzyloxy group, a phenyloxy group or a phenacyloxy group; R.sub.2 is a hydrogen atom, an alkaline metal, an alkyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms or a phenylalkyl group; Z is a group selected from the group consisting of a hydrogen atom, a halogen atom, a nitro group, a nitroso group and an amino group (Z may be substituted on any ring of the naphthalene ring); and n is an integer of 1 or 2; provided that R.sub.2 and Z do not simultaneously indicate a hydrogen atom when both R simultaneously indicate a hydroxyl group!, and a process for producing the same.Type: GrantFiled: November 20, 1997Date of Patent: December 8, 1998Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Shigeru Ito, Kenji Minami, Masaya Kitayama
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Patent number: 5791968Abstract: A grinding method is provided in which abrasive is projected onto a steel product through a nozzle to perform grinding thereon such as in a continuous casting process or in a subsequent process, wherein high-pressure water jet mixed with the abrasive is projected onto the surface of the steel product to grind defects on the surface, etc. thereof. A grinding system for executing this grinding method is also provided, the system including supply sources of high-pressure liquid and abrasive, a nozzle device connected with these supply sources, an abrasive recovery device for recovering the used abrasive as needed and restoring the same to the supply sources, and combined detection systems.Type: GrantFiled: August 30, 1996Date of Patent: August 11, 1998Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Nippon Steel CorporationInventors: Hiroyuki Matsumura, Yoshikazu Ikemoto, Keiji Tsujita, Hidetaka Tanaka, Kazumi Daitoku, Tomoharu Shimokasa, Fujiya Nogami, Kenji Minami
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Patent number: 5786523Abstract: A naphthol derivative represented by the general formula (I) ?wherein Y and Y' indicate --(CONH).sub.n --X or --COR; X is a phenyl group, a naphthyl group, an anthraquinonyl group, a benzimidazolonyl group or a carbazolyl group; R is a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, a halogen atom, a benzyloxy group, a phenyloxy group or a phenacyloxy group; R.sub.2 is a hydrogen atom, an alkaline metal, an alkyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms or a phenylalkyl group; Z is a group selected from the group consisting of a hydrogen atom, a halogen atom, a nitro group, a nitroso group and an amino group (Z may be substituted on any ring of the naphthalene ring); and n is an integer of 1 or 2; provided that R.sub.2 and Z do not simultaneously indicate a hydrogen atom when both R simultaneously indicate a hydroxyl group!, and a process for producing the same.Type: GrantFiled: November 18, 1997Date of Patent: July 28, 1998Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Shigeru Ito, Kenji Minami, Masaya Kitayama
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Patent number: 5747602Abstract: A process for producing a high-molecular-weight polydioxolane, which includes the steps of: polymerizing 1,3-dioxolane using a polymerization catalyst comprising a heteropolyacid and a ketone; and neutralizing the resulting polymerization reaction product using an organic amine and/or ammonia. A hydrophilic film, which includes a resin including a polydioxolane and having a particular molecular weight and has a particular crystallinity and a particular spherulite's size. A film crumbly in cold water is produced by forming a film under particular forming conditions from a resin including a polydioxolane and having a particular molecular weight, or by subjecting an already formed film to particular thermal hysteresis.Type: GrantFiled: December 30, 1996Date of Patent: May 5, 1998Assignee: Nippon Shokubai., Ltd.Inventors: Takashi Namba, Hiroya Kobayashi, Kenji Minami, Hiroshi Itoh, Toshiaki Kuriyama, Masashi Yukitake
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Patent number: 5691416Abstract: An epoxy resin composition which is tough and has excellent heat resistance and adhesion is obtained by dispersing, in an epoxy resin, polymer particles with a glass transition temperature of lower than 20.degree. C. obtained by emulsion polymerization of a (meth)acrylic acid ester monomer by using, as an emulsifier, an end alkyl group-containing polymer with an acid value of greater than 200 or a salt thereof obtained by polymerization of a polymerizable monomer containing an unsaturated carboxylic acid in the presence of an alkyl mercaptan. The epoxy resin composition is useful, for example, as adhesives, molding materials, paints, sealants.Type: GrantFiled: November 2, 1995Date of Patent: November 25, 1997Assignee: Nippon Shokubai Co., Ltd.Inventors: Masatoshi Yoshida, Kenji Minami, Ichiro Namura, Masuji Izubayashi
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Patent number: 5574117Abstract: The present invention provides an acrylic polymer containing no surfactant, having little limitation in the polymer composition and being superior in heat resistance, processing operation performance and fluidity, and also provides use of the polymer and a production process. An acrylic polymer of present invention is obtained by the bulk polymerization, contains an acrylic acid-based monomer unit as a main component in its structure and has a Mn of 1,000 to 1,000,000, a glass transition temperature of -80.degree. C. or higher and a Mw/Mn ratio of 5 or less, and is appropriate for acrylic rubber, a pressure-sensitive adhesive, an alkali-soluble adhesive, an alkali-soluble film, an alkali-soluble injection molding or water ink. This polymer is produced by, in the presence of an inactive gas, carrying out the bulk polymerization of a starting material which contains a monomer component having an acrylic acid-based monomer as a main component and contains a sulfur compound of 0.Type: GrantFiled: November 7, 1995Date of Patent: November 12, 1996Assignee: Nippon Shokubai Co., Ltd.Inventors: Masatoshi Yoshida, Masaya Uchida, Hiroyuki Ishida, Kenji Minami, Masuji Izubayashi, Yasumasa Tanaka
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Patent number: 4994520Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transfer, coating agent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.Type: GrantFiled: June 6, 1990Date of Patent: February 19, 1991Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ideda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori, Yoshihiro Arita, Kiyoshi Kawamura, Kenji Minami, Yoshinori Sano
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Patent number: 4983681Abstract: Colored microfine globular particles are produced by causing carbon black to react with a polymer capable of reacting with the carbon black thereby forming a carbon black-graft polymer, dispersing this carbon black-graft polymer in a polymerizable monomer component, and then polymerizing the polymerizable monomer component. These particles, in the unmodified form, are usable as a toner for the development of images of static charge and, in a form incorporated in a varying component, are usable such as in resin composition, coating composition, thermosensitive transfer ink ribbon coating agent, thermosensitive transfer ink, or back-coating agent for magnetic recording medium.Type: GrantFiled: December 22, 1989Date of Patent: January 8, 1991Assignee: Nippon Shokubai Kagaku Kogyo Kabushiki KaishaInventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Kenji Minami, Iwao Fukikawa
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Patent number: 4940749Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon balck. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.Type: GrantFiled: June 29, 1989Date of Patent: July 10, 1990Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori, Yoshihiro Arita, Kiyoshi Kawamura, Kenji Minami, Yoshinori Sano
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Patent number: 4910113Abstract: Colored microfine globular particles are produced by causing carbon black to react with a polymer capable of reacting with the carbon black thereby forming a carbon black-graft polymer, dispersing this carbon black-graft polymer in a polymerizable monomer component, and then polymerizing the polymerizable monomer component. These particles, in the unmodified form, are usable as a toner for the development of images of static charge and, in a form incorporated in a varying component, are usable such as in resin composition, coating composition, thermosensitive transfer ink ribbon coating agent, thermosensitive transfer ink, or back-coating agent for magnetic recording medium.Type: GrantFiled: July 7, 1988Date of Patent: March 20, 1990Assignee: Nippon Shokubai Kagaku Kogyo Kabushiki KaishaInventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Kenji Minami, Iwao Fujikawa
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Patent number: 4898788Abstract: A thermosetting resin decorative laminated sheet faced with a resin-impregnated sheet layer obtained by impregnating a sheetlike material with a resin composition containing an amino resin (I) produced by the reaction of formaldehyde with an amino compound (A) having as an essential component thereof at least one carboguanamine (a) selected from the group consisting of cyclohexanecarboguanamine and norbornanecarboguanamine and curing the resultant impregnated sheetlike material excels in flexibility, crack resistance, light resistance, and chemical resistance. A decorative overlaid plywood enjoying similarly desirable properties is obtained by integrating the aforementioned sheet layer with a substrate.Type: GrantFiled: July 19, 1988Date of Patent: February 6, 1990Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Kenji Minami, Hidetaka Yatagai, Yoshinori Sano
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Patent number: 4880857Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.Type: GrantFiled: December 16, 1987Date of Patent: November 14, 1989Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori, Yoshihiro Arita, Kiyoshi Kawamura, Kenji Minami, Yoshinori Sano
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Patent number: 4746645Abstract: Disclosed is a heat-sensitive recording material comprising a base sheet and a heat-sensitive record layer formed over the base sheet and comprising a colorless or pale-colored basic dye and a color developing material capable of forming a color when contacted with the dye, the heat-sensitive recording material being characterized in that the heat-sensitive record layer contains as the color developing material at least one multi-valent metal salt of a halophthalic acid derivative represented by the formula ##STR1## wherein R represents a divalent saturated or unsaturated C.sub.2 -C.sub.12 aliphatic hydrocarbon group which may optionally have a hydroxyl, C.sub.1 -C.sub.3 acyloxy or phenyl group as a substituent or a divalent saturated or unsaturated C.sub.4 -C.sub.6 aliphatic hydrocarbon group containing one or two ether bonds, X is a halogen atom and n is an integer of 1-4.Type: GrantFiled: December 16, 1986Date of Patent: May 24, 1988Assignees: Kanzaki Paper Manufacturing Company, Limited, Sugai Chemical Industry Co., Ltd.Inventors: Teijiro Kitao, Mitsuru Kondo, Toshitake Suzuki, Masayuki Omatsu, Hironori Fujii, Kenji Minami
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Patent number: 4509067Abstract: An additional N.sup.+ region is provided in a P type substrate adjacent to a protective N.sup.+ resistor region with an insulating layer and metal layer interposed between the N.sup.+ region and the N.sup.+ resistor region. The N.sup.+ resistor region, the oxide layer, the polysilicon layer and N.sup.+ region constitute an MOS transistor, respectively corresponding to a drain region, a gate insulating layer, a gate electrode and a source region of the MOS transistor. When a very high excessive voltage that otherwise would destroy the PN junction between the substrate and the resistor region is applied to the input terminal, the MOS transistor is rendered conductive and the excessive voltage is absorbed.Type: GrantFiled: March 3, 1982Date of Patent: April 2, 1985Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Kenji Minami, Masaru Katagiri, Hideo Noguchi
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Patent number: 4502924Abstract: In case that the surface of a mold for continuous casting of steel made of copper or copper alloy having at least partially nickel or nickel-base alloy plated thereon is injured, said surface is abraded without complete removal of said plated layer, the resulting exposed surface is dipped with concentrated strong acid for activation, and thereafter it is repaired by plating nickel or nickel-base alloy thereon.Type: GrantFiled: August 27, 1982Date of Patent: March 5, 1985Assignees: Nippon Steel Corporation, Mishima Kosan Company, LimitedInventors: Kenji Minami, Yoshimasa Kawata, Tetsuji Ushio, Hoshiro Tani, Kazuhisa Mitani
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Patent number: 4252840Abstract: A method of manufacturing a semiconductor device which comprises the steps of forming an insulating layer on a semiconductor substrate; removing that region of the insulating layer which is to be used for an electrode contact spot, thereby forming a hole for electrode contact, removing that region of the insulating layer on which wiring is to be laid to the intermediate section of the thickness of said insulating layer, thereby providing a stepped section between the bottom of the specified wiring region of said insulating layer thus removed and the surface of said insulating layer; and depositing a metal layer all over the surface of the insulating layer and then cutting off at said stepped section the portion of the metal layer formed on the specified wiring region of said insulating layer from the other portions of the metal layer remaining on the surface of the insulating layer, thereby providing the prescribed wiring.Type: GrantFiled: December 5, 1977Date of Patent: February 24, 1981Assignee: Tokyo Shibaura Electric Co., Ltd.Inventor: Kenji Minami