Patents by Inventor Noboru Kawata

Noboru Kawata 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).

  • Crystalline silicates and process for the production thereof
    Patent number: 4837000
    Abstract: Crystalline silicates and processes for the production thereof are described. These crystalline silicates are of new crystalline structure, which, as determined after calcination in the air at 550.degree. C., have a composition represented by the general formula (I): pM.sub.2/n O.Al.sub.2 O.sub.3.qSiO.sub.2 (the symbols are as defined in the appended claims) and give a X-ray diffraction pattern as shown in Table 2. They are superior in heat resistance and acid resistance, and can be used as catalysts for the conversion of various organic compounds, absorbents, or as catalysts for various reactions. They are produced by reacting an aqueous mixture comprising (a) a silica source, (b) an alumina source, (c) an alkali metal and/or alkaline earth metal source, and monoethanolamine at a temperature of 100.degree. to 300.degree. C. until the desired crystalline silicates are formed.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: June 6, 1989
    Assignee: Research Association for Petroleum Alternatives Development
    Inventors: Kozo Takatsu, Noboru Kawata
  • Process for the production of crystalline silicate ISI-4 using ethylene glycol
    Patent number: 4657750
    Abstract: Crystalline silicates and processes for the production thereof are described. These crystalline silicates are of new crystalline structure, which, as determined after calcination in the air at 550.degree. C., have a composition represented by the general formula (I): pM.sub.2/n O.Al.sub.2 O.sub.3.qSiO.sub.2 (the symbols are as defined in the appended claims) and give a X-ray diffraction pattern as shown in Table 2. They are superior in heat resistance and acid resistance, and can be used as catalysts for the conversion of various organic compounds, absorbents, or as catalysts for various reactions. They are produced by reacting an aqueous mixture comprising (a) a silica source, (b) an alumina source, (c) an alkali metal and/or alkaline earth metal source, and (d) ethylene glycol or (e) monoethanolamine at a temperature of 100.degree. to 300.degree. C. till the desired crystalline silicates are formed.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: April 14, 1987
    Assignee: Research Association for Petroleum Alternatives Development
    Inventors: Kozo Takatsu, Noboru Kawata
  • Method of producing unsaturated carbonyl compounds
    Patent number: 4055721
    Abstract: Unsaturated carbonyl compounds such as methyl methacrylate are produced by reacting an acetylene, CO and water or an alcohol in the presence of a catalyst comprising a Pd(II) compound and a compound R"X where R" is H, lower alkyl or aryl and X is halogen, and in the presence of an oxygen-containing compound other than water or an alcohol.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: October 25, 1977
    Assignee: Idemitsu Kosan Company, Ltd.
    Inventors: Noboru Kawata, Kosaku Honna, Hirozo Sugahara
  • Method of preparing transition metal complex catalysts
    Patent number: 3933770
    Abstract: There is provided a method of preparing transition metal complex catalysts combined with organic high polymers.
    Type: Grant
    Filed: March 20, 1974
    Date of Patent: January 20, 1976
    Assignee: Tokyo Institute of Technology
    Inventors: Sakuji Ikeda, Atsumu Ozaki, Makoto Okawara, Tsutomu Mizoroki, Masahiro Uchino, Hideki Shirakawa, Noboru Kawata