Patents by Inventor Kenichi Nishiwaki

Kenichi Nishiwaki 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).

  • Method for the pyrolysis of polymers
    Patent number: 5292862
    Abstract: The method includes the steps of feeding a polymer to an extruder where the polymer is melted, metering the molten polymer from the extruder to a tubular pyrolysis reactor through metering means connected to the extruder, and pyrolytically decomposing the polymer in the tubular pyrolysis reactor in the presence of a higher fatty acid, and/or a hydrochloric acid acceptor.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: March 8, 1994
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Eigo Miura, Takashi Yamanaka, Ryoji Ohori, Akio Ohdaira, Kenichi Nishiwaki, Yoshikuni Itoh, Yoshinori Morita, Hajime Inagaki
  • Material for color filter overcoat and material for color filter useful for liquid crystal display, process for formation of overcoat and process for formation of color filter
    Patent number: 5236793
    Abstract: The invention provides a material for overcoat on a color filter for liquid crystal display, characterized in that the material comprises a water-soluble photopolymerizable substance, a cationically polymerizable, water-insoluble photopolymerizable substance, a photopolymerization initiator and a precursor of photo-setting catalyst, and a material for a color filter which comprises a mixture of the material for overcoat and a coloring agent.The invention also provides a process for forming an overcoat on a color filter, or for forming a color filter characterized in that the process comprises the steps of applying the material for color filter overcoat or the material for a color filter, subjecting the coating to exposure to light and performing development using an aqueous solution of alkali.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: August 17, 1993
    Assignee: Okuno Chemical Industries Co., Ltd.
    Inventors: Kenichi Nishiwaki, Shuji Matsushima, Kenzo Fukuyoshi, Toyoshi Nishimoto
  • Polyterephthalamide composition having gel proportion, Fg, of 3-90%
    Patent number: 4742110
    Abstract: A polyamide composition comprising a polycondensate of 60 to 100 mole % of terephthalic acid component units and 40 to 0 mole % of units of an aromatic carboxylic acid other than terephthalic acid with an aliphatic alkylene-diamine having 6 to 18 carbon atoms and having a gel proportion of 6 to 90% as measured at 50.degree. C. in concentrated sulfuric acid.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: May 3, 1988
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Takeshi Sakashita, Yurimasa Zenitani, Akio Ikeda, Kenichi Nishiwaki
  • Composition for bonding electroconductive metal coating to electrically nonconductive material
    Patent number: 4469714
    Abstract: This invention provides a composition comprising about 15 to about 75% by weight of a thermosetting or ultraviolet-curable resin, about 24.5 to about 84.5% by weight of finely divided heat-resistant inorganic substance and about 0.5 to about 20% by weight of a finely divided palladium catalyst. This composition is the solvent-free type and useful for forming an electroconductive metal coating on an electrically nonconductive base material by chemical plating.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: September 4, 1984
    Assignee: Okuno Chemical Industry Co., Ltd.
    Inventors: Masatoshi Wada, Nobuyuki Konaga, Kenichi Nishiwaki, Yasuhiro Kobori