Patents by Inventor Tatsuya Nogami

Tatsuya Nogami 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: 5800926
    Abstract: A coating film having a refractive index of from 1.28 to 1.38 and a contact angle of water of from 90.degree. to 115.degree., adhered on a substrate surface, and prepared by reacting a particular tetraalkylsilicate, a particular fluorine-containing silicon compound, a particular hydroxy-containing compound, and oxalic acid in a particular range of ratios and in the absence of water, and under further specified reaction conditions.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: September 1, 1998
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Tatsuya Nogami, Takakazu Nakada, Rie Sakai, Takeshi Hosoya
  • Patent number: 5766673
    Abstract: A process for forming a liquid crystal vertical alignment film on an electrode substrate surface, which comprises preparing a reaction mixture comprising a silicon compound (A) of the following formula (1):Si(OR).sub.4 (1)wherein R is a C.sub.1-5 alkyl group, a silicon compound (B) of the following formula (2):R.sup.1 Si(OR).sub.3 (2)wherein R.sup.1 is an unsubstituted or fluorinated C.sub.3-20 alkyl group, and R is as defined above, an alcohol (C) of the following formula (3):R.sup.2 CH.sub.2 OH (3)wherein R.sup.2 is a hydrogen atom, or an unsubstituted or substituted C.sub.1-12 alkyl group, and oxalic acid (D), in a ratio of from 0.05 to 0.43 mol of the silicon compound (B) per mol of the silicon compound (A), in a ratio of from 0.5 to 100 mol of the alcohol (C) per mol of the total alkoxy groups contained in the silicon compounds (A) and (B), and in a ratio of from 0.2 to 2 mol of the oxalic acid (D) per mol of the total alkoxy groups contained in the silicon compounds (A) and (B).
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: June 16, 1998
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Tatsuya Nogami, Takakazu Nakada, Rie Sakai, Takeshi Hosoya
  • Patent number: 5700391
    Abstract: Disclosed is a liquid coating composition for forming a liquid crystal display element insulating film, which comprises a solution to be obtained by hydrolysis of Si(OR).sub.4 in the presence of an alkaline catalyst a hydrolyzed product of R.sup.1.sub.n Si(OR.sup.2).sub.4-n and/or Ti(OR.sup.3).sub.4, an aluminium salt and a deposition inhibitor, all having been uniformly mixed in an organic solvent. R, R.sup.2 and R.sup.3 each are a C.sub.1 to C.sub.5 alkyl group, R.sup.1 is an alkyl, alkenyl or aryl group, and n is 0 to 2. Though containing a trialkoxysilane having a high repelling property, the liquid coating composition may form an insulating film having high mechanical strength on a substrate and the coatability of a polyimide solution over the film is good. The adhesiveness of the oriented polyimide film to the insulating film is good. The insulating film has a high insulation property and has no bad influence on the display performance of liquid crystal display elements.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: December 23, 1997
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Tatsuya Nogami, Rie Sakai, Takeshi Hosoya
  • Patent number: 5384356
    Abstract: A liquid coating composition for the formation of a liquid crystal display element insulating film, which comprisesa) hydrolyzed product of tetraalkoxysilane of the general formula (1) below and trialkoxysilane of the general formula (2) below,b) an aluminum salt, andc) a deposition inhibitor, dissolved in an organic solvent.Si(OR).sub.4 (1)wherein R represents a C1-5 alkyl groupR.sup.1 Si(OR.sup.2).sub.3 (2)wherein R.sup.1 represents an alkyl, alkenyl or aryl group, and R.sup.2 represents a C1-5 alkyl group. The liquid coating composition according to the present invention is useful as an insulating film for a liquid crystal display element, as it exerts no adverse influence on the display property thereof.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: January 24, 1995
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Tatsuya Nogami, Rie Sakai
  • Patent number: 5091009
    Abstract: A coating composition for forming an inorganic film on a glass, ceramic metal or plastic surface is obtained by hydrolyzing and condensing a metal alkoxide of the general formula:M(OR).sub.nwherein M represents a metal atom, R represents an alkyl group having 1 to 5 carbon atoms, and n represents the valence number of M in an organic solvent in the presence of an aluminum salt; and adding a deposition inhibitor which prevents the separation of the aluminum salt when a film is formed. A process for preparing the composition is also disclosed.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: February 25, 1992
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Tatsuya Nogami, Kenichi Okubi, Yoshitane Watanabe
  • Patent number: 4830880
    Abstract: An electroless plating method which comprises applying to a substrate a polymer composition comprising 100 parts by weight of a polymer and an organic metal complex in an amount of from 0.001 to 50 parts by weight as metal, pyrolytically decomposing the organic metal complex at a temperature of from 50.degree. to 500.degree. C. to form plating catalyst metal nuclei on the substrate, removing the dried polymer coating, and conducting electroless plating of the substrate.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: May 16, 1989
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Kenichi Okubi, Tatsuya Nogami, Makoto Takakura
  • Patent number: 4666742
    Abstract: A polymer composition comprising a polymer and an organic metal complex uniformly dispersed or dissolved therein.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: May 19, 1987
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Makoto Takakura, Susumu Kondo, Tatsuya Nogami
  • Patent number: 4604303
    Abstract: A polymer composition comprising a polymer and an organic metal complex uniformly dispersed or dissolved therein.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: August 5, 1986
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Makoto Takakura, Susumu Kondo, Tatsuya Nogami
  • Patent number: D468638
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: January 14, 2003
    Assignees: Toppan Printing Co., Ltd., Meiji Seika Kaisha Ltd.
    Inventors: Tatsuya Nogami, Hirofumi Nakayama, Masato Takahashi