Patents by Inventor Yohji Terui

Yohji Terui 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 producing substituted dichlorosilane
    Patent number: 4309558
    Abstract: A method for producing mono-substituted dichlorosilanes selectively with a high yield from dichlorosilane is provided. According to this method, dichlorosilane and a specified compound having a double bond at .alpha.-position are reacted in the presence of a catalyst which is a homogeneous complex of ruthenium, rhodium, nickel or platinum, and a phosphine compound, or is a ruthenium chloride.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: January 5, 1982
    Assignee: Chisso Corporation
    Inventors: Isao Koga, Yohji Terui, Masuhito Ohgushi
  • Novel disubstituted dichlorosilane and method for producing same
    Patent number: 4297499
    Abstract: Novel disubstituted dichlorosilane compounds which have two different specified substituents and are necessary as monomers for preparing special silicone resin are provided and a method for producing same without accompaniment of by-product production is also provided.
    Type: Grant
    Filed: April 11, 1978
    Date of Patent: October 27, 1981
    Assignee: Chisso Corporation
    Inventors: Isao Koga, Yohji Terui, Masuhito Ohgushi, Tohru Kitahara
  • Method for producing 3-chloropropyltrichlorosilane
    Patent number: 4292433
    Abstract: In the method of producing 3-chloropropyltrichlorosilane by the addition reaction of trichlorosilane to allyl chloride, [Pt(PPh.sub.3).sub.2 Cl.sub.2 ] is used as the catalyst for the reaction.Side reactions are suppressed to give a high yield of the product.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: September 29, 1981
    Assignee: Chisso Corporation
    Inventors: Isao Koga, Yohji Terui, Masuhito Ohgushi, Tohru Kitahara, Kenichi Watanabe
  • Diaralkyldichlorosilanes
    Patent number: 4269993
    Abstract: Novel diaralkyldichlorosilanes expressed by the general formula (I) ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen atom or an alkyl group having 1.about.4 carbon atoms, but a case where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are all hydrogen atom is excluded),and a process for producing the same are provided.They are useful as monomers for producing polysiloxanes and as intermediates for synthesizing novel organosilicon compounds.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: May 26, 1981
    Assignee: Chisso Corporation
    Inventors: Nobumasa Ohtake, Isao Koga, Yohji Terui
  • Substituted phenethyldichlorosilanes and method for producing same
    Patent number: 4242272
    Abstract: Substituted phenethyldichlorosilanes having a longer chain alkyl group and diphenethyldichlorosilane which are useful as compounds for improving heat-resisting property and other properties of silicone-oils, -rubbers and -varnishes which are used as electric insulating materials, lubricating oils, water-repelling agents, paintings, releasing agents, etc. are provided. A method for producing these compounds with a high yield without producing by-products is also provided.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: December 30, 1980
    Assignee: Chisso Corporation
    Inventors: Isao Koga, Yohji Terui, Masuhito Ohgushi, Tohru Kitahara