Patents by Inventor Tatsuroh Yanagi

Tatsuroh Yanagi 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).

  • Polyurethane foam, process for producing the same, and foam forming composition
    Patent number: 6455606
    Abstract: A polyurethane foam which is obtained by reacting an addition-polymerizable active hydrogen component comprising a compound having a group containing active hydrogen and an addition-polymerizable functional group or comprising both this compound and a compound containing at least 2.5 groups (on the average) containing active hydrogen and not containing addition-polymerizable functional groups with an organic polyisocyanate in the presence or absence of at least one auxiliary selected from the group consisting of foaming agents and additives to polymerize the addition-polymerizable functional group and simultaneously form a polyurethane, and which has a structure in which the chains formed by the addition polymerization have been cross-linked to the polyurethane chains. The polyurethane foam is useful as a rigid polyurethane foam excellent in hardness, dimensional stability, etc. and usable as a heat insulator, shock-absorbing material, synthetic wood, etc.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: September 24, 2002
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Motonao Kaku, Yasushi Kumagai, Toru Nakanishi, Tatsuroh Yanagi, Tsuyoshi Tomosada, Kunikiyo Yoshio, Hajime Akiyama, Sadao Kubota, Jiro Ryugo, Yuichi Sasatani
  • POLYURETHANE FOAM, PROCESS FOR PRODUCING THE SAME, AND FOAM FORMING COMPOSITION
    Publication number: 20020052425
    Abstract: A polyurethane foam which is obtained by reacting an addition-polymerizable active hydrogen component comprising a compound having a group containing active hydrogen and an addition-polymerizable functional group or comprising both this compound and a compound containing at least 2.5 groups (on the average) containing active hydrogen and not containing addition-polymerizable functional groups with an organic polyisocyanate in the presence or absence of at least one auxiliary selected from the group consisting of foaming agents and additives to polymerize the addition-polymerizable functional group and simultaneously form a polyurethane, and which has a structure in which the chains formed by the addition polymerization have been cross-linked to the polyurethane chains. The polyurethane foam is useful as a rigid polyurethane foam excellent in hardness, dimensional stability, etc. and usable as a heat insulator, shock-absorbing material, synthetic wood, etc.
    Type: Application
    Filed: October 1, 1999
    Publication date: May 2, 2002
    Inventors: MOTONAO KAKU, YASUSHI KUMAGAI, TORU NAKANISHI, TATSUROH YANAGI, TSUYOSHI TOMOSADA, KUNIKIYO YOSHIO, HAJIME AKIYAMA, SADAO KUBOTA, JIRO RYUGO, YUICHI SASATANI
  • Ferroelectric liquid crystal composition
    Patent number: 5348685
    Abstract: This invention is directed to reduce the viscosity of a naphthalene type mixed liquid crystal and to improve display quality while maintaining a bookshelf layer structure. The ferroelectric liquid crystal composition of the present invention comprises 70 to 97 parts by weight of a naphthalene base mixed liquid crystal and 3 to 30 parts by weight of a predetermined tolan type liquid crystal.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: September 20, 1994
    Assignees: Fujitsu Limited, Mitsui Toatsu Chemicals, Inc., Sanyo Chemical Industries, Ltd.
    Inventors: Akihiro Mochizuki, Shigeo Kasahara, Tetsuya Makino, Masashi Watanabe, Masakatsu Nakatsuka, Kunikiyo Yoshio, Masahiro Satoh, Tetsuya Watanabe, Naoko Sugita, Tatsuroh Yanagi