Patents by Inventor Takaaki Imakura

Takaaki Imakura 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).

  • Adhesive for silicone rubber lining materials
    Patent number: 6866742
    Abstract: An adhesive for silicone rubber lining materials, for adhering a silicone rubber lining material and a (meth)acrylic resin denture base together, comprising (a) 100 parts by weight of an organic solvent, (b) 0.1 to 20 parts by weight of a (meth)acrylic polymer modified with a siloxane having a functional group reactive in the hydrosilylation reaction; and (c) 0.1 to 20 parts by weight of a polymer of a (meth)acrylic acid alkyl ester represented by the following formula, CH2?C(X)—COOR, wherein X is a hydrogen atom or a methyl group, and R is an alkyl group having 1 to 6 carbon atoms. This adhesive adheres the silicone rubber lining material and the (meth)acrylic resin denture base together very strongly. The adhering force is favorably maintained not only in the initial period but also for extended periods of time, offering excellent durability of adhesion. The initial adhering force and the durability of adhesion are also exhibited even by using a halogen-free organic solvent.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 15, 2005
    Assignee: Tokuyama Corporation
    Inventors: Masanao Hashiguchi, Takaaki Imakura, Toshio Kawaguchi
  • Adhesive for silicon rubber lining materials
    Publication number: 20040020597
    Abstract: An adhesive for silicone rubber lining materials, for adhering a silicone rubber lining material and a (meth)acrylic resin denture base together, comprising (a) 100 parts by weight of an organic solvent, (b) 0.1 to 20 parts by weight of a (meth)acrylic polymer modified with a siloxane having a functional group reactive in the hydrosilylation reaction; and (c) 0.1 to 20 parts by weight of a polymer of a (meth)acrylic acid alkyl ester represented by the following formula, CH2=C(X)—COOR, wherein X is a hydrogen atom or a methyl group, and R is an alkyl group having 1 to 6 carbon atoms. This adhesive adheres the silicone rubber lining material and the (meth)acrylic resin denture base together very strongly. The adhering force is favorably maintained not only in the initial period but also for extended periods of time, offering excellent durability of adhesion. The initial adhering force and the durability of adhesion are also exhibited even by using a halogen-free organic solvent.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 5, 2004
    Inventors: Masanao Hashiguchi, Takaaki Imakura, Toshio Kawaguchi
  • Dental tissue conditioner and kit therefor
    Patent number: 6547563
    Abstract: A method which comprises using silicone rubber as a material for dental tissue conditioner.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: April 15, 2003
    Assignee: Tokuyama Corporation
    Inventors: Yasuhiro Hosoi, Osamu Iwamoto, Takaaki Imakura