Patents by Inventor Seiichi TERASAKI

Seiichi TERASAKI 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).

  • Pentachlorodisilane production method and pentachlorodisilane produced by same
    Patent number: 10294110
    Abstract: [Problem] To provide a novel production method for pentachlorodisilane and to obtain pentachlorodisilane having a purity of 90 mass % or more by carrying out this production method. [Solution] A production method provided with: a high-temperature reaction step in which a raw material gas containing vaporized tetrachlorosilane and hydrogen is reacted at a high temperature in order to obtain a reaction product gas containing trichlorosilane; a pentachlorodisilane generation step in which the reaction product gas obtained in the high-temperature reaction step is brought into contact with a cooling liquid obtained by circulative cooling of a condensate that is generated by cooling the reaction product gas, the reaction product gas is quickly cooled, and pentachlorodisilane is generated within the condensate; and a recovery step in which the generated pentachlorodisilane is recovered.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 21, 2019
    Assignees: DENKA COMPANY LIMTIED, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Hiroyuki Yashima, Takahiro Kozuka, Seiichi Terasaki, Jean-Marc Girard
  • PENTACHLORODISILANE PRODUCTION METHOD AND PENTACHLORODISILANE PRODUCED BY SAME
    Publication number: 20170283267
    Abstract: [Problem] To provide a novel production method for pentachlorodisilane and to obtain pentachlorodisilane having a purity of 90 mass % or more by carrying out this production method. [Solution] A production method provided with: a high-temperature reaction step in which a raw material gas containing vaporized tetrachlorosilane and hydrogen is reacted at a high temperature in order to obtain a reaction product gas containing trichlorosilane; a pentachlorodisilane generation step in which the reaction product gas obtained in the high-temperature reaction step is brought into contact with a cooling liquid obtained by circulative cooling of a condensate that is generated by cooling the reaction product gas, the reaction product gas is quickly cooled, and pentachlorodisilane is generated within the condensate; and a recovery step in which the generated pentachlorodisilane is recovered.
    Type: Application
    Filed: September 25, 2015
    Publication date: October 5, 2017
    Applicants: Denka Company Limited, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EX PLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Hiroyuki YASHIMA, Takahiro KOZUKA, Seiichi TERASAKI, Jean-Marc GIRARD