Patents by Inventor Kiyoaki Syuto

Kiyoaki Syuto 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: 5759638
    Abstract: The present invention relates to a process for forming an electronic circuit, which comprises coating a polyorganosilane on at least one surface of a substrate for forming an electronic circuit, followed by drying to form a solid state polysilane thin film, masking a portion for forming a circuit of said thin film and oxidizing a remaining portion to form an insulating portion, and then doping an oxidizing substance to the portion subjected to masking to form a conductive portion, and in order to oxidize a partial portion of the thin film, said thin film is irradiated with UV light in the presence of oxygen, preferably, in the oxidizing step, by carrying out partial oxidation while controlling an oxidation degree, the remaining portion is converted into three or more kinds of portions having different volume resistivities.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: June 2, 1998
    Assignee: Toshiba Silicone Co., Ltd.
    Inventors: Takafumi Imai, Keiji Kabeta, Kiyoaki Syuto, Shigeru Wakamatsu
  • Patent number: 5075459
    Abstract: A treatment agent for inorganic siliconaceous fillers has as its main ingredient an organosilicon compound of general fomrula (I): ##STR1## in which X represents a functional group selected from among H.sub.2 NCH.sub.2 CH.sub.2 --, H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 --, ##STR2## Y.sup.1 is CH.sub.2 .dbd.CHCH.sub.2 -- or --CH.sub.2 CH.sub.2 CH.sub.2 SiR.sub.n.sup.1 Z.sub.3-n.sup.1, R.sup.1 is a substituted or nonsubstituted monovalent hydrocarbon group, Z.sup.1 is an alkoxy group having 1-6 carbon atoms and n is an integer from 0-2, or of general formula (II): ##STR3## in which Y.sup.2 is ##STR4## --CH.sub.2 CH.sub.2 CH.sub.2 SiR.sub.m.sup.2 Z.sub.3-m.sup.2 or a substitutent or nonsubstituted monovalent hydrocarbon group, Z.sup.2 is an alkoxy group having 1-6 carbon atoms and m is an integer from 0-2.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: December 24, 1991
    Assignee: Toshiba Silicone Co., Ltd.
    Inventors: Keiji Kabeta, Kiyoaki Syuto
  • Patent number: 4927951
    Abstract: An organosilicon compound which contains a highly reactive (meth)acrylamide and a siloxane group with a molecule has the following formula: ##STR1## where R.sup.1 is a methyl group or hydrogen atom, R.sup.2 is a substituted or unsubstituted monovalent hydrocarbon group, Q is a divalent hydrocarbon group having 1-8 carbon atoms, A is a hydrogen atom, substituted or unsubstituted hydrocarbon carbon group or --QSiR.sup.n.sup.2 [OSi(CH.sub.3).sub.3 ].sub.3-n, and n is an integer from 0-2.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: May 22, 1990
    Assignee: Toshiba Silicone Co., Ltd.
    Inventors: Keiji Kabeta, Kiyoaki Syuto