Patents by Inventor Takashi Tachiyama

Takashi Tachiyama 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).

  • Chloroprene rubber, chloroprene rubber composition, vulcanizate thereof, and formed body
    Patent number: 8816030
    Abstract: Provided are a chloroprene rubber, a chloroprene rubber composition and the vulcanizate and formed body thereof superior in low-temperature properties. A chloroprene rubber is obtained by emulsion polymerization of raw monomers containing antiperiplanar trans-1-chlorobuta-1,3-diene and cis-1-chlorobuta-1,3-diene in a total amount of 0.5 mass % or more, 2,3-dichlorobuta-1,3-diene in an amount of 2.0 mass % or more, and the rest being chloroprene. A composition containing the chloroprene is vulcanized into a formed body.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 26, 2014
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Uichiro Yamagishi, Takashi Tachiyama, Takahiro Kozuka
  • Chloroprene rubber, chloroprene rubber composition, vulcanizate thereof, and formed body
    Publication number: 20140058055
    Abstract: Provided are a chloroprene rubber, a chloroprene rubber composition and the vulcanizate and formed body thereof superior in low-temperature properties. A chloroprene rubber is obtained by emulsion polymerization of raw monomers containing antiperiplanar trans-1-chlorobuta-1,3-diene and cis-1-chlorobuta-1,3-diene in a total amount of 0.5 mass % or more, 2,3-dichlorobuta-1,3-diene in an amount of 2.0 mass % or more, and the rest being chloroprene. A composition containing the chloroprene is vulcanized into a formed body.
    Type: Application
    Filed: February 7, 2012
    Publication date: February 27, 2014
    Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Uichiro Yamagishi, Takashi Tachiyama, Takahiro Kozuka
  • PROCESS FOR CONTINUOUSLY PRODUCING MONOSILANE
    Publication number: 20100074824
    Abstract: Provided is a process for readily and efficiently producing monosilane which is industrially significantly useful.
    Type: Application
    Filed: September 27, 2007
    Publication date: March 25, 2010
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Otsu, Takashi Tachiyama, Mineto Kobayashi, Kazuyuki Yubune, Takao Takeuchi, Yusuke Wakuda