Patents by Inventor Eiichiro Nishikawa

Eiichiro Nishikawa 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).

  • Vanadium phosphorous mixed oxide
    Patent number: 6762146
    Abstract: A novel intercalation compound is provided, in which compound monohydric alcohol is intercalated between layers of a layered compound comprising vanadium, phosphorus and oxygen as primary components, characterized in that the monohydric alcohol is aliphatic secondary monohydric alcohol, alicyclic monohydric alcohol, or aromatic monohydric alcohol. By heating the intercalation compound, a vanadium-phosphorus mixed oxide having a BET specific surface area of at least 80 m2/g can be obtained.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: July 13, 2004
    Assignee: Tonen Chemical Corporation
    Inventors: Yuichi Kamiya, Eiichiro Nishikawa
  • Intercalation compound and a vanadium phosphorus mixed oxide and a process for the preparation thereof
    Patent number: 6495486
    Abstract: A novel intercalation compound is provided, in which compound monohydric alcohol is intercalated between layers of a layered compound comprising vanadium, phosphorus and oxygen as primary components, characterized in that the monohydric alcohol is aliphatic secondary monohydric alcohol, alicyclic monohydric alcohol, or aromatic monohydric alcohol. By heating the intercalation compound, a vanadium-phosphorus mixed oxide having a BET specific surface area of at least 80 m2/g can be obtained.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: December 17, 2002
    Assignees: Tonen Chemical Corporation, Japan Chemical Industry Association
    Inventors: Yuichi Kamiya, Eiichiro Nishikawa
  • Intercalation compound and a vanadium phosphorus mixed oxide and a process for the preparation thereof
    Publication number: 20020141927
    Abstract: A novel intercalation compound is provided, in which compound monohydric alcohol is intercalated between layers of a layered compound comprising vanadium, phosphorus and oxygen as primary components, characterized in that the monohydric alcohol is aliphatic secondary monohydric alcohol, alicyclic monohydric alcohol, or aromatic monohydric alcohol By heating the intercalation compound, a vanadium-phosphorus mixed oxide having a BET specific surface area of at least 80 m2/g can be obtained.
    Type: Application
    Filed: October 23, 2001
    Publication date: October 3, 2002
    Inventors: Yuichi Kamiya, Eiichiro Nishikawa
  • Catalyst, its method of preparation and process for its use in the hydrogenation of diolefins
    Patent number: 4691070
    Abstract: A catalyst for the hydrogenation of a diolefin, having palladium or a compound thereof and at least one co-catalyst component selected from the group consisting of ruthenium, rhodium, cobalt, and rhenium supported each in the form of an elemental metal or a metal compound on a support, its method of preparation and its use for said hydrogenation, particularly for the hydrogenation of cyclopentadiene to cyclopentene is described herein.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: September 1, 1987
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Teiji Nakamura, Eiichiro Nishikawa, Takeo Koyama
  • Process for producing carbonyl compounds
    Patent number: 4551556
    Abstract: The invention relates to a process of producing a carbonyl compound by dehydrogenating a linear aliphatic alcohol of 1 to 6 carbon atoms in the gas phase in the presence of a solid catalyst comprising a ruthenium catalyst supported on a carrier such as zinc oxide or magnesium oxide.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: November 5, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Eiichiro Nishikawa, Masuo Shinya, Kayako Ueda, Katsumi Kaneko
  • Method of preparing a catalyst for synthesizing unsaturated esters
    Patent number: 4354961
    Abstract: A method of preparing a catalyst for the diacyloxylation of conjugated dienes such as butadiene by reaction with a carboxylic acid such as acetic acid and oxygen, which comprises separately and successively impregnating a carrier, for example carbon, with a solution of a Group VIII noble metal in a mixture of a mineral acid and an organic solvent, then with a solution of a Group IVA, VA or VIA element or compound thereof in an organic solvent.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: October 19, 1982
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Setsuo Kamiyama, Kouji Shiozawa, Eiichiro Nishikawa, Katsumi Kaneko
  • Method of removing oxygen from a gas containing an unsaturated hydrocarbon
    Patent number: 4299800
    Abstract: This invention consists essentially in a method of removing oxygen from a gas containing an unsaturated hydrocarbon, which comprises contacting a gas containing an unsaturated hydrocarbon and oxygen with silver and/or gold, or a catalyst containing at least one of them, in the presence of hydrogen.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: November 10, 1981
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Eiichiro Nishikawa, Masuo Shinya, Hiroshi Furukawa, Katsumi Kaneko