Patents by Inventor Kazuhiko Shichiku

Kazuhiko Shichiku 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).

  • Rubber modified asphalt type of water-proofing compositions
    Patent number: 5891224
    Abstract: An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofing, and filling buildings and structure for engineering works, said waterproofing composition coagulates instantaneously to form a stable yet firm waterproofing layer. This rubber modified asphalt type of waterproofing composition comprises a cationic rubber modified asphalt emulsion and an organic coagulating agent.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: April 6, 1999
    Assignees: Obayashi Corporation, Toho Natural Gas Co. Ltd., Nichireki Co., Ltd.
    Inventors: Tsuyoshi Aoyama, Yoshimasa Hayashi, Tadashi Nouchi, Kazuhiko Shichiku, Akira Ito, Hiroyuki Ishii, Haruka Ogawa, Hitofusa Mitani, Kiyoshige Nishibayashi
  • Rubber modified asphalt type of water-proofing compositions
    Patent number: 5866211
    Abstract: An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofing, and filling buildings and structure for engineering works, said waterproofing composition coagulates instantaneously to form a stable yet firm waterproofing layer. This rubber modified asphalt type of waterproofing composition comprises a cationic rubber modified asphalt emulsion and an organic coagulating agent.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: February 2, 1999
    Assignees: Obayashi Corporation, Toho Natural Gas Company, Limited, Nichireki Co., Ltd.
    Inventors: Tsuyoshi Aoyama, Yoshimasa Hayashi, Tadashi Nouchi, Kazuhiko Shichiku, Akira Ito, Hiroyuki Ishii, Haruka Ogawa, Hitofusa Mitani, Kiyoshige Nishibayashi
  • Rubber modified asphalt type of water-proofing composition
    Patent number: 5674313
    Abstract: An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofing, and filling buildings and structure for engineering works, said waterproofing composition coagulates instantaneously to form a stable yet firm waterproofing layer. This rubber modified asphalt type of waterproofing composition comprises a cationic rubber modified asphalt emulsion and an organic coagulating agent.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: October 7, 1997
    Assignees: Obayashi Corporation, Toho Natural Gas Company, Limited, Nichireki Co., Ltd.
    Inventors: Tsuyoshi Aoyama, Yoshimasa Hayashi, Tadashi Nouchi, Kazuhiko Shichiku, Akira Ito, Hiroyuki Ishii, Haruka Ogawa, Hitofusa Mitani, Kiyoshige Nishibayashi