Patents by Inventor Motoaki Umezu
Motoaki Umezu 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: 12017470Abstract: There are provided a useful resin composition for a back-surface layer and a heat-sensitive transfer recording material using the same, wherein under the circumstances where the temperature of thermal heads has been increased, the back-surface layer of the formed heat-sensitive transfer recording material has more excellent heat resistance, damage to a thermal head can be alleviated, and durability is excellent in that bleeding is suppressed even if the silicone content is increased. The present invention provides a resin composition for a back-surface layer to be used for forming a back-surface layer of a heat-sensitive transfer recording material, the resin composition containing, as film-forming components, a siloxane-modified urethane- or urea-based resin A, a resin B, and a cross-linking agent C, wherein the resin A contains a polysiloxane component in a range of 5 to 55%, the resin B has at least one active-hydrogen-containing group and has a glass transition point of lower than 100° C.Type: GrantFiled: March 3, 2022Date of Patent: June 25, 2024Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Mikiyoshi Namura, Takeshi Kawaguchi, Motoaki Umezu
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Publication number: 20240092109Abstract: There are provided a useful resin composition for a back-surface layer and a heat-sensitive transfer recording material using the same, wherein under the circumstances where the temperature of thermal heads has been increased, the back-surface layer of the formed heat-sensitive transfer recording material has more excellent heat resistance, damage to a thermal head can be alleviated, and durability is excellent in that bleeding is suppressed even if the silicone content is increased. The present invention provides a resin composition for a back-surface layer to be used for forming a back-surface layer of a heat-sensitive transfer recording material, the resin composition containing, as film-forming components, a siloxane-modified urethane- or urea-based resin A, a resin B, and a cross-linking agent C, wherein the resin A contains a polysiloxane component in a range of 5 to 55%, the resin B has at least one active-hydrogen-containing group and has a glass transition point of lower than 100° C.Type: ApplicationFiled: March 3, 2022Publication date: March 21, 2024Inventors: Mikiyoshi NAMURA, Takeshi KAWAGUCHI, Motoaki UMEZU
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Publication number: 20220403097Abstract: The present invention provides nanometer-sized fibers that are produced by an electrospinning method with use of a spinning solution for electrospinning, said spinning solution being environmentally friendly and taking the effects of an organic solvent on the human body into consideration.Type: ApplicationFiled: November 6, 2020Publication date: December 22, 2022Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR&CHEMICALS MFG.CO.,LTD., SHINSHU UNIVERSITYInventors: Daisuke NODA, Shinji IRIFUNE, Masaki TANAKA, Hiromasa SATO, Motoaki UMEZU, Toshihisa TANAKA, Keishiro ONO, Kaisuke NISHIBU
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Publication number: 20220169779Abstract: A material for medical use, which contains nanofibers that are formed from a resin containing a silicone-modified polyurethane resin, and which is characterized in that: the silicone-modified polyurethane resin is a reaction product of (A) a long-chain polyol that has a number average molecular weight of 500 or more, (B) a short-chain polyol that has a number average molecular weight of less than 500, (C) an active hydrogen group-containing organopolysiloxane and (D) a polyisocyanate; and the average fiber diameter thereof is less than 2,000 nm. This material for medical use exhibits excellent performance in a biological test.Type: ApplicationFiled: February 18, 2020Publication date: June 2, 2022Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR&CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Daisuke NODA, Shinji IRIFUNE, Masaki TANAKA, Hiromasa SATO, Motoaki UMEZU, Shota IINO, Toshihisa TANAKA, Chuan Yin
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Patent number: 11174335Abstract: Disclosed herein is a fiber formed from a resin including a silicone-modified polyurethane resin comprising the reaction products of a polyol (A), a chain extender (B), an active-hydrogen-group-containing organopolysiloxane (C), and a polyisocyanate (D), wherein the active-hydrogen-group-containing organopolysiloxane (C) contains an active-hydrogen-group-containing organopolysiloxane (C-1) having a carbinol group at only one terminal.Type: GrantFiled: March 31, 2017Date of Patent: November 16, 2021Assignees: SHIN-ETSU CHEMICAL CO., LTD., DAINCHISEIK COLOR & CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hatsuhiko Hattori, Masaki Tanaka, Hiromasa Sato, Shota Iino, Motoaki Umezu, Toshihisa Tanaka, Mikihisa Kondo
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Publication number: 20210115278Abstract: Provided are: a polyurethane resin having a high degree of biomass, the polyurethane resin useful as a binder for a printing exhibiting excellent adhesion performance particularly to biomass plastic base materials and having excellent dispersibility of a pigment contained at a high concentration; and a printing ink using the polyurethane resin.Type: ApplicationFiled: April 24, 2018Publication date: April 22, 2021Inventors: Iwao MISAIZU, Hiromasa SATO, Motoaki UMEZU, Hiroki GOTO, Tomoyuki NATSUI
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Publication number: 20190071534Abstract: A fiber formed from a resin including a silicone-modified polyurethane resin comprising the reaction products of a polyol (A), a chain extender (B), an active-hydrogen-group-containing organopolysiloxane (C), and a polyisocyanate (D), wherein the active-hydrogen-group-containing organopolysiloxane (C) contains an active-hydrogen-group-containing organopolysiloxane (C-1) having a carbinol group at only one terminal.Type: ApplicationFiled: March 31, 2017Publication date: March 7, 2019Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hatsuhiko HATTORI, Masaki TANAKA, Hiromasa SATO, Shota IINO, Motoaki UMEZU, Toshihisa TANAKA, Mikihisa KONDO
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Publication number: 20180086874Abstract: Provided is a fiber formed from a resin containing a silicone-modified polyurethane resin. With the present invention, a characteristic fiber having excellent flexibility, slipping ability, blocking resistance, heat retaining property, water vapor permeability, water repellency, and spinnability can be provided.Type: ApplicationFiled: March 29, 2016Publication date: March 29, 2018Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR&CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hatsuhiko HATTORI, Yoshinori YONEDA, Masaki TANAKA, Yoshitaka KOSHIRO, Hiromasa SATO, Shota IINO, Motoaki UMEZU, Toshihisa TANAKA, Hiroko IDE, Rino OKAMOTO
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Patent number: 7288301Abstract: A thermal ink ribbon has a base sheet, a thermal recording layer arranged on one side of the base sheet, and a back layer arranged on an opposite side of the base sheet. The back layer according to the present invention comprises a polyurethane resin which is obtained by reacting a low molecular weight polymer having at least one active-hydrogen-containing group at one end of the molecule, a compound having at least one active-hydrogen group and at least one hydrophilic group except a hydroxide group, with a polyisocyanate. The back layer is excellent in the adhesiveness to a base sheet, the heat resistance relative to a thermal head and slipperiness to a thermal head; and the ink ribbon with such a back layer has no problems in printed characters and figures on printing, in the migration of impurities from the back layer into an ink layer, in smeariness of a thermal head and in its maintenance.Type: GrantFiled: March 9, 2004Date of Patent: October 30, 2007Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Takeshi Kawaguchi, Kazuyuki Hanada, Katsutoshi Torii, Motoaki Umezu, Tomoaki Kamita
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Publication number: 20040180152Abstract: A thermal ink ribbon has a base sheet, a thermal recording layer arranged on one side of the base sheet, and a back layer arranged on an opposite side of the base sheet. The back layer according to the present invention comprises a polyurethane resin which is obtained by reacting a low molecular weight polymer having at least one active-hydrogen-containing group at one end of the molecule, a compound having at least one active-hydrogen group and at least one hydrophilic group except a hydroxide group, with a polyisocyanate. The back layer is excellent in the adhesiveness to a base sheet, the heat resistance relative to a thermal head and slipperiness to a thermal head; and the ink ribbon with such a back layer has no problems in printed characters and figures on printing, in the migration of impurities from the back layer into an ink layer, in smeariness of a thermal head and in its maintenance.Type: ApplicationFiled: March 9, 2004Publication date: September 16, 2004Applicants: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., UKIMA COLOUR & CHEMICALS MFG. CO., LTD.Inventors: Takeshi Kawaguchi, Kazuyuki Hanada, Katsutoshi Torii, Motoaki Umezu, Tomoaki Kamita
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Patent number: 6358306Abstract: 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 tertiary amino groups in a molecule thereof or a hydrophilic resin containing 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: August 10, 2000Date of Patent: March 19, 2002Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Motoaki Umezu, Kenichi Takahashi, Katsutoshi Torii, Takeshi Kawaguchi, Katsuyuki Fukui
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Patent number: 6159605Abstract: 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 polyurethane resin, hydrophilic polyurea resin, hydrophilic polyurethane-polyurea resin or hydrophilic polyamide resin having siloxane segments in a molecule thereof. As an alternative, the ink-receiving layer comprises a porous hydrophilic polyurethane resin, a porous hydrophilic polyurea resin or a porous hydrophilic polyurethane-polyurea resin.Type: GrantFiled: February 5, 1998Date of Patent: December 12, 2000Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Katsutoshi Torii, Takeshi Kawaguchi, Katsuyuki Fukui, Motoaki Umezu
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Patent number: 6143419Abstract: 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 tertiary amino groups in a molecule thereof or a hydrophilic resin containing 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: November 7, 2000Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Motoaki Umezu, Kenichi Takahashi, Katsutoshi Torii, Takeshi Kawaguchi, Katsuyuki Fukui
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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: 5334511Abstract: The present invention provides an improved mink growth hormone gene, a recombinant DNA containing the improved mink growth hormone gene, microorganisms which belong to the genus Escherichia and contain the recombinant DNA and which are capable of producing a mink growth hormone, and a method for producing a mink growth hormone using the E.coli transformant containing the recombinant DNA. According to the present invention, a mink growth hormone is efficiently produced.Type: GrantFiled: October 16, 1992Date of Patent: August 2, 1994Assignee: Kikkoman CorporationInventors: Yasuhiro Harada, Eiichi Nakano, Hiroki Tatsumi, Motoaki Umezu