Patents by Inventor Hiroaki Omoto

Hiroaki Omoto 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).

  • Patent number: 8187995
    Abstract: This invention relates to a cerium-zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium-zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 ?mol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 ?mol/g.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 29, 2012
    Assignees: Daiichi Kigenso Kagaku Kogyo Co., Ltd., N.E. Chemcat Corporation
    Inventors: Takahiro Wakita, Akira Kohara, Yasuharu Kanno, Hiroaki Omoto
  • Publication number: 20110171092
    Abstract: This invention relates to a cerium—zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium—zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 ?mol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 ?mol/g.
    Type: Application
    Filed: December 9, 2010
    Publication date: July 14, 2011
    Applicants: DAIICHI KIGENSO KAGAKU KOGYO CO., LTD., N.E. CHEMCAT CORPORATION
    Inventors: Takahiro Wakita, Akira Kohara, Yasuharu Kanno, Hiroaki Omoto
  • Patent number: 7871956
    Abstract: This invention relates to a cerium-zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium-zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 ?mol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 ?mol/g.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: January 18, 2011
    Assignees: Daiichi Kigenso Kagaku Kogyo Co., Ltd., N.E. Chemcat Corporation
    Inventors: Takahiro Wakita, Akira Kohara, Yasuharu Kanno, Hiroaki Omoto
  • Publication number: 20070155624
    Abstract: This invention relates to a cerium-zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium-zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 ?mol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 ?mol/g.
    Type: Application
    Filed: March 13, 2007
    Publication date: July 5, 2007
    Applicants: DAIICHI KIGAKU KOGYO CO., LTD., N.E. CHEMCAT CORPORATION
    Inventors: Takahiro Wakita, Akira Kohara, Yasuharu Kanno, Hiroaki Omoto
  • Publication number: 20060293408
    Abstract: The present invention provides an antifouling paint composition having a non-aqueous dispersion resin having a core-shell structure which is constituted of (a) a hydrophilic core component comprising a polymer of ethylenically unsaturated monomers of which 5-75% by weight comprise free acid groups and ?3% by weight comprises silyl ester groups, (b) a shell component having a polymer of ethylenically unsaturated monomers of which <3% by weight comprises free acid groups or silyl ester groups, said resin having an acid value 15-400 mg KOH/g wherein the core component accounts for ?80% of the acid value of the resin, said paint composition having rosin wherein ?90% by weight of the rosin has conjugated, non-aromatic double bonds, and ?25% thereof being metal resinate which constitutes 1-40% by wet weight of the composition, the dry weight ratio between (i) NAD resin and (ii) rosin and metal resinates being 100:15 to 15:100.
    Type: Application
    Filed: July 7, 2006
    Publication date: December 28, 2006
    Inventors: Hiroaki Omoto, Toshiya Takahashi, Hiroki Hayashi, Tomohiro Tanabe, Hiroyuki Tanabe, Tohru Taki, Yoshiyuki Iwase, Chugo Yokochi, Munehiro Nishimoto, Santiago Codolar, Michael Pedersen, Antoni Badia, Frants Buchwald
  • Publication number: 20050080159
    Abstract: The present invention provides an antifouling pain composition comprising a non-dispersion resin having a core-shell structure which is constituted of (a) a hydrophilic core component comprising a polymer of ethylenically unsaturated monomers of which 5-75% by weight comprise free acid groups and ?3% by weight comprises silyl ester groups, (b) a shell component comprising a polymer of ethylenically unsaturated monomers of which <3% by weight comprises free acid groups or silyl ester groups, said resin having an acid value 15-400 mg KOH/g wherein the core component accounts for ?80% of the acid value of the resin, said paint composition comprising rosin wherein S90% by weight of the rosin has conjugated, non-aromatic double bonds, and ?25% thereof being metal resinate which constitutes 1-40% by wet weight of the composition, the dry weight ratio between (i) NAD and (ii) rosin and metal resinates being 100:15 to 15:100.
    Type: Application
    Filed: December 20, 2002
    Publication date: April 14, 2005
    Inventors: Hiroaki Omoto, Toshiya Takahashi, Hiroki Hayashi, Tomohiro Tanabe, Hiroyuki Tanabe, Tohru Taki, Yoshiyuki Iwase, Chugo Yokochi, Munehiro Nishimoto
  • Patent number: 5883200
    Abstract: A coating composition characterized in that it contains a compound obtained by reacting an amino resin with an organic polyphosphonic acid.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: March 16, 1999
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Harufumi Tsuchiya, Hiroaki Omoto, Hiroyuki Mishima, Tsunehiko Toyoda
  • Patent number: 5608004
    Abstract: A water base coating composition having a solid content of from 50 to 80 wt % and having a binder component dissolved or dispersed in a solvent mixture comprising water and a hydrophilic organic solvent, said binder component comprising from 30 to 95 wt % of a polyester resin obtained from an aromatic polybasic carboxylic acid or its acid anhydride and a polyhydric alcohol and having a hydroxyl value of from 100 to 280 and an acid value of from 0 to 15, and from 70 to 5 wt % of a melamine resin and/or a benzoguanamine resin.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: March 4, 1997
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Tsunehiko Toyoda, Harufumi Tsuchiya, Hiroaki Omoto, Mitsuru Kohno, Maki Ii