Patents by Inventor Teruo Hama

Teruo Hama 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).

  • Publication number: 20090062415
    Abstract: Methods comprising: providing an aromatic polyisocyanate and a polyol; and reacting the aromatic polyisocyanate and the polyol in the presence of a blowing agent and a catalyst to form a rigid polyurethane foam; wherein the blowing agent comprises water and a hydrocarbon having 3 to 8 carbon atoms; and wherein the polyol comprises a mixture of two or more polyether polyols according to formula (1): wherein each R independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms and n represents an integer of 0 to 5; the mixture of polyether polyols having a mean functionality of 4.5 or more; and wherein the mixture of polyether polyols comprises 50 to 70% by weight of a compound of formula (1) wherein n=0 is and 30 to 50% by weight of a compound of formula (1) wherein n?1; and wherein the mixture of polyether polyols comprises 2.5% by weight or more a compound of formula (1) wherein n=4, all percentages by weight based on the mixture of polyether polyol.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Tomoaki Fukuba, Katsuki Kanoh, Teruo Hama, Yuudai Kashiwamoto, Atsushi Urano, Hirokazu Yoshihara
  • Patent number: 5786400
    Abstract: The present invention relates to a method of producing a rigid polyurethane foam in which a polyisocyanate containing a benzene ring is used as an organic isocyanate and a polyether polyol and/or polyester polyol is used as a polyol, characterized in that a hydrocarbon is used as the blowing agent and a compound having a hydrophobic group and a hydroxyl group in the molecule is used as an emulsifying agent. The blowing agent is preferably a hydrocarbon selected from the group consisting of cyclopentane, n-pentane and iso-pentane.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: July 28, 1998
    Assignee: Sumitomo Bayer Urethane Co., Ltd.
    Inventors: Martin Brock, Mitsuaki Ikebe, Teruo Hama
  • Patent number: 5480649
    Abstract: A procaterol-containing preparation for application to the skin which comprises a drug-retaining layer provided on a support, wherein said drug-retaining layer comprises a substantially water-free adhesive gel base comprising as essential components polyacrylic acid, a crosslinking agent and at least one lower alcohol or polyvalent alcohol, and 0.1 to 5% by weight of procaterol or a pharmaceutically acceptable salt thereof. Said preparation for application to the skin can be used as an external preparation for application to the skin which is capable of stably delivering procaterol or a salt thereof through the skin for a long time of period.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: January 2, 1996
    Assignee: Teikoku Seiaku Kabushiki Kaisha
    Inventors: Mitsuji Akazawa, Teruo Hama, Yukio Kimura, Yoshinobu Yasuda
  • Patent number: 5236713
    Abstract: A preparation for intermittently releasing an active agent which comprises a laminated combination of a release-controlling layer and a pharmaceutically active agent-containing layer wherein one or more of pharmaceutically active agent layers are incorporated into said release-controlling layer. The preparation in accordance with the present invention can intermittently control the release of the active agent to decrease a dosage time and is applicable to the mucous membrane or gingivae within the oral cavity.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: August 17, 1993
    Assignee: Teikoku Seiyaku Kabushiki Kaisha
    Inventors: Takahiko Wato, Teruo Hama, Nobuko Inoue, Yukihiro Tada, Shin-ichi Hisaichi