Patents by Inventor Toshikazu Nabeshima
Toshikazu Nabeshima 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: 10946557Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an active hydrogen group-containing compound having four active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an active hydrogen group-containing compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.Type: GrantFiled: April 26, 2017Date of Patent: March 16, 2021Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Takuya Horie, Toshikazu Nabeshima, Kazunori Nakagawa
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Patent number: 10870222Abstract: Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000.Type: GrantFiled: January 18, 2016Date of Patent: December 22, 2020Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Shigeru Kigasawa, Toshikazu Nabeshima, Takuya Horie
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Patent number: 10717210Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an amine compound having 4-8 active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an amine compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.Type: GrantFiled: April 26, 2017Date of Patent: July 21, 2020Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Takuya Horie, Toshikazu Nabeshima, Kazunori Nakagawa
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Publication number: 20190275709Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an amine compound having 4-8 active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an amine compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.Type: ApplicationFiled: April 26, 2017Publication date: September 12, 2019Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Takuya HORIE, Toshikazu NABESHIMA, Kazunori NAKAGAWA
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Publication number: 20190193307Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an active hydrogen group-containing compound having four active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an active hydrogen group-containing compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.Type: ApplicationFiled: April 26, 2017Publication date: June 27, 2019Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Takuya HORIE, Toshikazu NABESHIMA, Kazunori NAKAGAWA
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Publication number: 20180126602Abstract: Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000.Type: ApplicationFiled: January 18, 2016Publication date: May 10, 2018Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Shigeru KIGASAWA, Toshikazu NABESHIMA, Takuya HORIE
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Publication number: 20150014580Abstract: In the present invention, by using an etching liquid for silicon wafers, which comprises an aqueous solution containing (A) an alkali component and (B) a phosphonic acid derivative or a salt thereof, a good texture can be stably and uniformly formed on a wafer surface. The present invention provides a texture-forming etching liquid for silicon wafers, which is applicable to both wafers cut by a loose abrasive grain system and wafers cut by a fixed abrasive grain system with no vaporization of additive components in the region of working temperatures of from 60° C. to 95° C.Type: ApplicationFiled: February 6, 2013Publication date: January 15, 2015Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Kazunori Nakagawa, Shigeru Kigasawa, Toshikazu Nabeshima
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Patent number: 6673754Abstract: The present invention provides a nonflammable water-based cutting fluid composition which affords excellent dispersion property of abrasives, which does not cause problems involving in flammability upon the use for cutting process of a hard and brittle materials, which can be readily washed, and which can achieve sufficient rust preventive property even if it is used in an equipment for oil use. Provided by the present invention is a nonflammable water-based cutting fluid composition containing a polycarboxylic acid-based polymer compound and/or a salt thereof having a weight-average molecular weight of 1,000-200,000, and additionally a carboxylic acid and/or a salt thereof upon needs for a rust preventive property.Type: GrantFiled: September 6, 2002Date of Patent: January 6, 2004Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Toshikazu Nabeshima, Kaori Sugiyama, Hitoshi Shinike
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Patent number: 6649718Abstract: A surface active agent composition is prepared including: a polymerizable monomer surface active agent and a polymerizable dimer surface active agent represented by the following chemical formula. In the following chemical formula, R1s each are independently an alkyl group having 8 to 30 carbon atoms, R2s each are independently hydrogen or a methyl group, As each are independently an alkylene group having 2 to 4 carbon atoms or a substituted alkylene group, and ns each are independently an integer from 0 to 200. The surface active agent composition is capable of providing for an emulsion exhibiting excellent mechanical stability and polymerization stability, which in turn is capable of forming a film having sufficiently high adhesion and water resistance.Type: GrantFiled: November 13, 2001Date of Patent: November 18, 2003Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Toshiyuki Nishitani, Toshikazu Nabeshima, Hiroyuki Kurahashi
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Publication number: 20030139552Abstract: A surface active agent composition is prepared including: a polymerizable monomer surface active agent and a polymerizable dimer surface active agent represented by the following chemical formula. In the following chemical formula, R1s each are independently an alkyl group having 8 to 30 carbon atoms, R2s each are independently hydrogen or a methyl group, As each are independently an alkylene group having 2 to 4 carbon atoms or a substituted alkylene group, and ns each are independently an integer from 0 to 200. The surface active agent composition is capable of providing for an emulsion exhibiting excellent mechanical stability and polymerization stability, which in turn is capable of forming a film having sufficiently high adhesion and water resistance.Type: ApplicationFiled: November 13, 2001Publication date: July 24, 2003Inventors: Toshiyuki Nishitani, Toshikazu Nabeshima, Hiroyuki Kurahashi
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Patent number: 5284604Abstract: Inflammable synthetic thermoplastic resins are rendered flame retarded by incorporating therein to 100 parts by weight thereof from 5 to 50 parts by weight of 2,4,6-tris (2,4,6-tribromophenoxy)-1,3,5-triazine having a melting point ranging between 225.degree.-235.degree. C., from 5 to 50 parts by weight of a bis-tetrabromophthalimide, 0-50 parts by weight of a bromine-containing epoxy polymer having a molecular weight from 1,000 to 50,000 and from 1 to 20 parts by weight of antimony trioxide.Type: GrantFiled: May 8, 1992Date of Patent: February 8, 1994Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Setuo Nishibori, Hideto Kondo, Toshikazu Nabeshima