Patents by Inventor Takaichi Yamamoto

Takaichi Yamamoto 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).

  • Patent number: 6645910
    Abstract: The present invention provides a thermally sensitive recording medium that possesses a thermally sensitive color developing layer containing colorless or pale colored basic leuco dye and an organic color developer as main components on a substrate, wherein said thermally sensitive recording medium contains at least one kind of an ultraviolet ray absorbent of aqueous emulsion type polymer composed of an emulsion copolymerized compound of (a) ultraviolet ray absorbing monomer, (b) vinyl compound monomer that can copolymerize with said monomer, (c) hydrophilic monomer and (d) reactive emulsifier.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: November 11, 2003
    Assignees: Nippon Paper Industries Co. Ltd., Ipposha Oil Industries Co. Ltd.
    Inventors: Reiko Sato, Kaoru Hamada, Yoshihide Kimura, Takaichi Yamamoto, Hiroyuki Kawabata, Seiji Sugimori
  • Patent number: 6620509
    Abstract: A transparent resin laminate comprising a polycarbonate resin base material, an acrylic resin layer comprising an ultraviolet absorbent coated on at least one surface of said polycarbonate resin base material and a cured layer formed by coating a composition comprising polyorganosiloxane and a silicone-containing polymer ultraviolet absorbent on said acrylic resin layer and then curing, wherein a difference of linear expansion coefficient between said polycarbonate resin base material and said acrylic resin layer and a difference of linear expansion coefficient between said acrylic resin layer and said cured layer are 0/° C. to 5×10−5/° C., respectively and a molded article used the same.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: September 16, 2003
    Assignees: Mitsubishi Gas Chemical Company, Inc., Ipposha Oil Industries Co., Ltd.
    Inventors: Takaichi Yamamoto, Takeshi Kimura, Seiji Sugimori
  • Patent number: 5458924
    Abstract: A durable light resistance and UV-screening action is imparted to a fibrous article by coating the fibrous article with a polymer comprising units derived from at least one monomer selected from those which are represented by the formulae (1) and (2): ##STR1## wherein R is H or CH.sub.3 and X is --O--, --OCH.sub.2 CH.sub.2 O-- or --OCH.sub.2 CH(CH.sub.3)O--, ##STR2## wherein Y is halogen or CH.sub.3, n is 1 or 2, R.sub.1 is C1-6 hydrocarbyl, m is 1 or 2, R.sub.2 is C1-6 alkylene and R.sub.3 is H or CH.sub.3.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: October 17, 1995
    Assignee: Ipposha Oil Industries Co., Ltd.
    Inventors: Kazuto Kashiwai, Takaichi Yamamoto, Shinichi Kumagae