Patents by Inventor Nobuhiro Hata
Nobuhiro Hata 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: 7384622Abstract: A zeolite suspension contains MEL-type zeolite nanocrystals as a principal component. A method for the production of MEL-type zeolite nanocrystals includes the steps of aging a synthesized solution comprising TEOS, TBAOH, water and alcohol and subjecting the aged solution to hydrothermal crystallization treatment at a predetermined temperature. A method for the production of a zeolite suspension includes the steps of aging a synthesized solution comprising TEOS, TBAOH, water and alcohol, subjecting the aged solution to hydrothermal crystallization treatment to produce MEL-type zeolite nanocrystals and mixing a composition having a surfactant dissolved in at least one organic solvent or a mixed solvent of alcohol-based organic solvents, amide-based organic solvents and ketone-based organic solvents with a zeolite nano-crystal suspension containing the MEL-type zeolite nanocrystals to produce a zeolite suspension.Type: GrantFiled: August 29, 2005Date of Patent: June 10, 2008Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Nobuhiro Hata, Guoqing Guan, Takenobu Yoshino, Syozo Takada
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Patent number: 7279434Abstract: The material contemplated by this invention for the formation of a low-dielectric-constant film contains in all the stereoisomer molecules of 1,3,5,7-tetramethyl cyclotetrasiloxane (TMCTS) not less than 15% and not more than 100% of a stereoisomer having all the four hydrogen atoms forming an Si—H bond fall on the same size relative to the Si—O ring plane. It is utilized as a material for forming a low-dielectric-constant film which can be used for enhancing the function of an integrated circuit in the field of semiconductors.Type: GrantFiled: June 21, 2005Date of Patent: October 9, 2007Assignees: National Institute of Advanced Industrial Science and Technology, Tokyo Electron LimitedInventors: Nobuhiro Hata, Hidenori Miyoshi
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Publication number: 20060063662Abstract: A zeolite suspension contains MEL-type zeolite nanocrystals as a principal component. A method for the production of MEL-type zeolite nanocrystals includes the steps of aging a synthesized solution comprising TEOS, TBAOH, water and alcohol and subjecting the aged solution to hydrothermal crystallization treatment at a predetermined temperature. A method for the production of a zeolite suspension includes the steps of aging a synthesized solution comprising TEOS, TBAOH, water and alcohol, subjecting the aged solution to hydrothermal crystallization treatment to produce MEL-type zeolite nanocrystals and mixing a composition having a surfactant dissolved in at least one organic solvent or a mixed solvent of alcohol-based organic solvents, amide-based organic solvents and ketone-based organic solvents with a zeolite nano-crystal suspension containing the MEL-type zeolite nanocrystals to produce a zeolite suspension.Type: ApplicationFiled: August 29, 2005Publication date: March 23, 2006Applicant: Nat. Inst. of Adv. Industrial Sci. and Tech.Inventors: Nobuhiro Hata, Guoqing Guan, Takenobu Yoshino, Syozo Takada
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Publication number: 20050287818Abstract: The material contemplated by this invention for the formation of a low-dielectric-constant film contains in all the stereoisomer molecules of 1,3,5,7-tetramethyl cyclotetrasiloxane (TMCTS) not less than 15% and not more than 100% of a stereoisomer having all the four hydrogen atoms forming an Si—H bond fall on the same size relative to the Si—O ring plane. It is utilized as a material for forming a low-dielectric-constant film which can be used for enhancing the function of an integrated circuit in the field of semiconductors.Type: ApplicationFiled: June 21, 2005Publication date: December 29, 2005Applicants: Nat Inst of Adv Industrial Sci and Tech, TOKYO ELECTRON LIMITEDInventors: Nobuhiro Hata, Hidenori Miyoshi
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Patent number: 6849694Abstract: The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a vinyl chloride polymer and 2-8 parts of an impact modifier composition comprising at least one ethylene/alpha-olefin copolymer and at least one chlorinated olefin polymer per 100 parts of the vinyl chloride polymer. Preferably the impact modifier composition comprises less than 1 part of the ethylene/alpha-olefin copolymer and the ratio of said copolymer to the total modifier composition is less than 25%.Type: GrantFiled: January 15, 2003Date of Patent: February 1, 2005Assignee: DuPont Dow Elastomers, LLCInventor: Nobuhiro Hata
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Publication number: 20040048986Abstract: Disclosed herein is a resin composition which comprises (A) an ethylene-vinyl alcohol copolymer having an ethylene content of 20-70 mol %, (B) a polyamide resin, and (C) a hydrophobic plasticizer which satisfies the condition specified by equation (1) below, with the amounts of components (A), (B), and (C) being 55-97 parts by weight, 3-45 parts by weight, and 0.1-30 parts by weight, respectively, on the basis of 100 parts by weight of the total amount of components (A) and (B).Type: ApplicationFiled: August 13, 2003Publication date: March 11, 2004Applicant: Kuraray, Co., Ltd.Inventors: Hiroyuki Shimo, Nobuhiro Hata
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Publication number: 20030153687Abstract: The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a vinyl chloride polymer and 2-8 parts of an impact modifier composition comprising at least one ethylene/alpha-olefin copolymer and at least one chlorinated olefin polymer per 100 parts of the vinyl chloride polymer. Preferably the impact modifier composition comprises less than 1 part of the ethylene/alpha-olefin copolymer and the ratio of said copolymer to the total modifier composition is less than 25%.Type: ApplicationFiled: January 15, 2003Publication date: August 14, 2003Inventor: Nobuhiro Hata
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Patent number: 6391412Abstract: Disclosed herein is a fuel tank of multi-layer construction having good impact resistance as well as good barrier properties for gasoline, especially one containing methanol and MTBE. The fuel tank comprises (a) inner and outer layers of high-density polyethylene, (b) intermediate layers of adhesive resin, and (c) a core layer of ethylene-vinylalcohol copolymer, with said core layer (c) being shifted to the inside. For better performance, the layer (c) has a thickness which satisfies the formula below. 0.005≦A/B≦0.13 (1) where A is the thickness of the layer (c), and B is the thickness of all the layers. The fuel tank is suitable especially for oxygen-containing gasoline.Type: GrantFiled: December 30, 1999Date of Patent: May 21, 2002Assignee: Kuraray Co., Ltd.Inventors: Nobuhiro Hata, Taichi Negi
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Publication number: 20010016613Abstract: Disclosed herein is a resin composition which comprises (A) an ethylene-vinyl alcohol copolymer having an ethylene content of 20-70 mol %, (B) a polyamide resin, and (C) a hydrophobic plasticizer which satisfies the condition specified by equation (1) below, with the amounts of components (A), (B), and (C) being 55-97 parts by weight, 3-45 parts by weight, and 0.1-30 parts by weight, respectively, on the basis of 100 parts by weight of the total amount of components (A) and (B).Type: ApplicationFiled: April 9, 2001Publication date: August 23, 2001Applicant: Kuraray, Co., Ltd.Inventors: Hiroyuki Shimo, Nobuhiro Hata
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Patent number: 6033749Abstract: Disclosed herein is a fuel tank of multi-layer construction having good impact resistance as well as good barrier properties for gasoline, especially one containing methanol and MTBE.The fuel tank comprises (a) inner and outer layers of high-density polyethylene, (b) intermediate layers of adhesive resin, and (c) a core layer of ethylene-vinylalcohol copolymer, with said core layer (c) being shifted to the inside. For better performance, the layer (c) has a thickness which satisfies the formula below.0.005.ltoreq.A/B.ltoreq.0.13 (1)where A is the thickness of the layer (c), andB is the thickness of all the layers.The fuel tank is suitable especially for oxygen-containing gasoline.Type: GrantFiled: July 18, 1997Date of Patent: March 7, 2000Assignee: Kuraray Co., Ltd.Inventors: Nobuhiro Hata, Taichi Negi
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Patent number: 4532373Abstract: An amorphous photovoltaic energy conversion element for use in a solar cell is composed of a first layer formed of a p-type material, a second layer formed of an intrinsic amorphous semiconductor having a potential gradient formed therein and a third layer formed of a metal capable of coming into ohmic contact with the aforementioned intrinsic layer of amorphous semiconductor and exhibiting a lower work function than the work function of the intrinsic layer of amorphous semiconductor.Type: GrantFiled: March 14, 1984Date of Patent: July 30, 1985Assignee: Agency of Industrial Science & Technology, Ministry of International Trade and IndustryInventors: Hideharu Matsuura, Kazunobu Tanaka, Akihisa Matsuda, Hideyo Okushi, Hidetoshi Oheda, Satoshi Yamasaki, Nobuhiro Hata