Patents by Inventor Kazuyuki Hanada
Kazuyuki Hanada 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: 6117552Abstract: An ink-jet recording sheet is provided with at least one ink-receiving layer on at least one side of a base material sheet. A resin component which constitutes the ink-receiving layer comprises a hydrophilic resin containing hydrolyzable silyl groups in a molecule thereof, a hydrophilic resin containing hydrolyzable silyl groups and tertiary amino groups in a molecule thereof, or a hydrophilic resin containing hydrolyzable silyl groups, tertiary amino groups and polysiloxane segments in a molecule thereof. A coating formulation suitable in use for the production of the ink-jet recording sheet is also disclosed.Type: GrantFiled: May 26, 1998Date of Patent: September 12, 2000Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., LtdInventors: Kazuyuki Hanada, Motoaki Umezu, Kenichi Takahashi, Katsutoshi Torii, Takeshi Kawaguchi, Katsuyuki Fukui
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Patent number: 5945185Abstract: An air bag made of thermoplastic polyurethane resin which can be deployed quickly enough over a wide range of temperature from very low to high and which can exhibit stable performance without danger of blocking is made of silicone modified thermoplastic polyurethane resin in which the content of siloxane is 5-40% by weight. An occupant can be protected by the air bag over a wide range of temperature such as from -40.degree. C. to +100.degree. C.Type: GrantFiled: June 15, 1998Date of Patent: August 31, 1999Assignees: Takata Corporation, Shin-Etsu Chemical Co., Ltd., Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Kinji Hirai, Masahiko Minemura, Yoshitaka Koshiro, Susumu Nakamura, Kazuyuki Hanada
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Patent number: 5922808Abstract: A PVA-base copolymer is obtained by subjecting a lactone, whose ring is formed of 3 to 10 carbon atoms, to ring-opening polymerization in the presence of polyvinyl alcohol (PVA). The copolymer comprises a PVA chain and an aliphatic polyester grafted as a ring-opened polymer of the lactone on the PVA chain. Further, the copolymer has a PVA content of 2 to 98 wt. %, a polyester content of 98 to 2 wt. %, and a number average molecular weight of 10,000 to 500,000.Type: GrantFiled: June 25, 1997Date of Patent: July 13, 1999Assignees: Dainichiseika Color&Chemicals Mfg. Co., Ltd, Ukima Colour&Chemicals Mfg. Co., LtdInventors: Kazuyuki Hanada, Katsumi Kuriyama
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Patent number: 5908808Abstract: Described is a back-side coating formulation for a heat-sensitive recording material. The coating formulation comprises, in a liquid medium, a reaction product obtained by reacting (a) a polysiloxane compound containing at least one functional group reactive with an isocyanate group, (b) a silane coupling agent containing at least one functional group selected from a functional group reactive with an isocyanate group or an isocyanate group, and (c) a polyisocyanate. The reaction product has been obtained by conducting the reaction under the condition of R>1 or R.ltoreq.1, R being an equivalent ratio of isocyanate group(s) to group(s) reactive with isocyanate group(s) (isocyanate group(s)/group(s) reactive with isocyanate group(s)) and in the case of R.ltoreq.1, the silane coupling agent contains at least one hydrolyzable group in addition to the reactive group.Type: GrantFiled: August 12, 1997Date of Patent: June 1, 1999Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventor: Kazuyuki Hanada
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Patent number: 5904974Abstract: A PVA-base copolymer is obtained by subjecting a lactone, whose ring is formed of 3 to 10 carbon atoms, to ring-opening polymerization in the presence of polyvinyl alcohol (PVA). The copolymer comprises a PVA chain and an aliphatic polyester grafted as a ring-opened polymer of the lactone on the PVA chain. Further, the copolymer has a PVA content of 2 to 98 wt. %, a polyester content of 98 to 2 wt. %, and a number average molecular weight of 10,000 to 500,000.Type: GrantFiled: June 25, 1997Date of Patent: May 18, 1999Assignees: Dainichiseika Color & Chemicals Mfg.Co., Ltd, Ukima Colour & Chemicals Mfg. Co., LtdInventors: Kazuyuki Hanada, Katsumi Kuriyama
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Patent number: 5700868Abstract: Described is a back-side coating formulation for a heat-sensitive recording material. The coating formulation comprises, in a liquid medium, a reaction product obtained by reacting (a) a polysiloxane compound containing at least one functional group reactive with an isocyanate group, (b) a silane coupling agent containing at least one functional group selected from a functional group reactive with an isocyanate group or an isocyanate group, and (c) a polyisocyanate. The reaction product has been obtained by conducting the reaction under the condition of R>1 or R.ltoreq.1, R being an equivalent ratio of isocyanate group(s) to group(s) reactive with isocyanate group(s) (isocyanate group(s)/group(s) reactive with isocyanate group(s)) and in the case of R.ltoreq.1, the silane coupling agent contains at least one hydrolyzable group in addition to the reactive group.Type: GrantFiled: July 25, 1995Date of Patent: December 23, 1997Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventor: Kazuyuki Hanada
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Patent number: 5621042Abstract: Coating compositions are described. They contain, as a film-forming component, a fluoropolymer with a silane-coupling agent containing at least one free isocyanate group. The fluoropolymer may also have been modified with a reaction product of a polysiloxane or fluorine compound containing a reactive organic functional group with an organic polyisocyanate, which reaction product contains at least one free isocyanate group.Type: GrantFiled: July 20, 1995Date of Patent: April 15, 1997Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg, Co., Ltd.Inventors: Kazuyuki Hanada, Setsuo Hirose, Katsumi Kuriyama
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Patent number: 5384365Abstract: A release agent comprising a resin containing siloxane segments is described. The resin has been modified with a silane coupling agent containing at least one free isocyanate group and contains one or more hydrolyzable silyl groups in side chains of its molecule.Type: GrantFiled: December 29, 1993Date of Patent: January 24, 1995Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Iwao Misaizu, Masashi Saito, Katsutoshi Torii, Katsumi Kuriyama
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Patent number: 5321083Abstract: Disclosed herein are coating compositions comprising a fluoropolymer modified with a modifier. The modifier is a reaction product of at least one compound selected from polysiloxane compounds, fluorine-containing compounds and silane coupling agents, each containing at least one reactive organic functional group, with an organic polyisocyanate; and contains at least one free isocyanate group.Type: GrantFiled: May 12, 1992Date of Patent: June 14, 1994Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Iwao Misaizu, Katsumi Kuriyama
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Patent number: 5262492Abstract: Siloxane-modified polyester resins are disclosed. These resins comprise a copolymer of a siloxane compound, which contains at least one active hydrogen atom, and a lactone compound. The copolymer is substantially free of unreacted siloxane compound. The siloxane-modified polyester resins are useful for the production of heat-sensitive recording material, magnetic recording media and release agents. Processes for the production of the siloxane-modified polyester resins are also disclosed.Type: GrantFiled: April 9, 1992Date of Patent: November 16, 1993Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Iwao Misaizu, Akihiko Shibuya, Katsumi Kuriyama
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Patent number: 5192736Abstract: A heat-sensitive recording material comprises a base sheet material, a heat-sensitive recording layer provided on one side of the base sheet material and a heat-resistant layer provided on the other side of the base sheet material. The heat-resistant layer is formed of a resin which is modified with a silane coupling agent, which contains at least one free isocyanate group, and containing one or more hydrolyzable silyl groups in side chains of its molecule.Type: GrantFiled: December 24, 1991Date of Patent: March 9, 1993Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Iwao Misaizu, Masashi Saito, Katsutoshi Torii, Katsumi Kuriyama
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Patent number: 5068295Abstract: A water and oil repellant contains a copolymer of a first vinyl monomer having a perfluoroalkyl group, a second vinyl monomer having a polyorganosiloxane chain and a third vinyl monomer having an isocyanate group or blocked isocyanate group as essential components. As an alternative, a water and oil repellant contains a copolymer of a first vinyl monomer having a polyorganosiloxane chain and a second vinyl monomer having an isocyanate group or blocked isocyanate group, in combination with a water and oil repellant compound having a perfluoroalkyl group.Type: GrantFiled: February 9, 1990Date of Patent: November 26, 1991Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Iwao Misaizu, Kazuyuki Hanada, Akihiko Shibuya, Katsumi Kuriyama
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Patent number: 5024893Abstract: A polyurethane resin is composed of a polyol component, a polyisocyanate component and optionally, a chain extender component. At least a portion of the polyol component or chain extender component is a siloxane polyol component represented by the following formula (1) and/or formula (2): ##STR1## wherein R means an alkyl group, R' denotes a hydrogen atom or C.sub.1-5 alkyl group, k, l and m stand for 1-250, 0-5 and 0-50 respectively, and n is an integer of 1-3 in the formula (1) and an integer of 2-3 in the formula (2). A thermal recording material containing the polyurethane resin as a heat-resistant layer is also disclosed.Type: GrantFiled: May 2, 1990Date of Patent: June 18, 1991Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co. Ltd.Inventors: Kazuyuki Hanada, Kohichi Kuroda, Iwao Misaizu, Masashi Kashimura, Tomoko Goto, Katsumi Kuriyama
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Patent number: 4942212Abstract: A polyurethane resin is composed of a polyol component, a polyisocyanate component and optionally, a chain extender component. At least a portion of the polyol component or chain extender component is a siloxane polyol component represented by the following formula (1) and/or formula (2): ##STR1## wherein R means an alkyl group, R' denotes a hydrogen atom or C.sub.1-5 alkyl group, k, l and m stand for 1-250, 0-5 and 0-50 respectively, and n is an integer of 1-3 in the formula (1) and an integer of 2-3 in the formula (2). A thermal recording material containing the polyurethane resin as a heat-resistant layer is also disclosed.Type: GrantFiled: December 6, 1988Date of Patent: July 17, 1990Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Kohichi Kuroda, Iwao Misaizu, Masashi Kashimura, Tomoko Goto, Katsumi Kuriyama
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Patent number: 4910087Abstract: A heat-sensitive recording medium is composed of a base sheet, a heat-sensitive recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet. The heat-resistant layer is made of a resin containing siloxane bonds in its molecule.Type: GrantFiled: August 27, 1987Date of Patent: March 20, 1990Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Hideyasu Torii, Kazuyuki Hanada
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Patent number: 4895829Abstract: A heat-sensitive recording medium is composed of a base sheet, a heat-sensitive recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet. The heat-resistant layer is made of a film-forming resin modified with a modifier, which is a reaction product of a silicone compound containing at least one reactive organic functional group and an organic polyisocyanate.Type: GrantFiled: August 19, 1987Date of Patent: January 23, 1990Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Susumu Nakamura
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Patent number: 4853418Abstract: A polyurethane emulsion is composed of an organic solvent solution of a polyurethane resin containing silicone segments and/or fluorocarbon segments as backbones and/or side chains and water emulsified in the organic solvent solution. A sheet-like porous material having a porous layer of a polyurethane resin provided on a base material is produced by using the above polyurethane emulsion to form the porous layer.Type: GrantFiled: August 8, 1988Date of Patent: August 1, 1989Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Iwao Misaizu, Masashi Kashimura, Tomoko Goto, Katsumi Kuriyama
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Patent number: 4837198Abstract: A heat-sensitive recording medium is composed of a base sheet, a heat-sensitive recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet. The heat-resistant layer is made of a film-forming resin modified with a modifier, which is a reaction product of a fluorine compound containing at least one reactive organic functional group and an organic polyisocyanate.Type: GrantFiled: August 27, 1987Date of Patent: June 6, 1989Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemiclas Mfg. Co., Ltd.Inventors: Katsumi Kuriyama, Kazuyuki Hanada, Susumu Nakamura, Iwao Misaizu, Masashi Kashimura, Tomoko Goto