Patents by Inventor Rokuya Yamashita

Rokuya Yamashita 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).

  • Polymer-bonded functional agents
    Patent number: 7253229
    Abstract: Polymer-bonded functional agents are each obtained by reacting a functional agent containing reactive groups with a polymer containing groups reactive with the reactive groups of the functional agent. The functional agent comprises at least one functional agent selected from the group consisting of antioxidants, ultraviolet absorbers, light stabilizers, infrared absorbers and antistatic agents. Use of these polymer-bonded functional agents can provide articles with improved functions.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: August 7, 2007
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Hiromitsu Yanagimoto, Hiroyuki Shimanaka, Rokuya Yamashita
  • Polymer-bonded functional agents
    Publication number: 20050226835
    Abstract: Polymer-bonded functional agents are each obtained by reacting a functional agent containing reactive groups with a polymer containing groups reactive with the reactive groups of the functional agent. The functional agent comprises at least one functional agent selected from the group consisting of antioxidants, ultraviolet absorbers, light stabilizers, infrared absorbers and antistatic agents. Use of these polymer-bonded functional agents can provide articles with improved functions.
    Type: Application
    Filed: May 19, 2005
    Publication date: October 13, 2005
    Applicant: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Hiromitsu Yanagimoto, Hiroyuki Shimanaka, Rokuya Yamashita
  • Polymer-bonded functional agents
    Patent number: 6936659
    Abstract: Polymer-bonded functional agents are each obtained by reacting a functional agent containing reactive groups with a polymer containing groups reactive with the reactive groups of the functional agent. The functional agent comprises at least one functional agent selected from the group consisting of antioxidants, ultraviolet absorbers, light stabilizers, infrared absorbers and antistatic agents. Use of these polymer-bonded functional agents can provide articles with improved functions.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: August 30, 2005
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Hiromitsu Yanagimoto, Hiroyuki Shimanaka, Rokuya Yamashita
  • Polymer-bonded functional agents
    Publication number: 20030078346
    Abstract: Polymer-bonded functional agents are each obtained by reacting a functional agent containing reactive groups with a polymer containing groups reactive with the reactive groups of the functional agent. The functional agent comprises at least one functional agent selected from the group consisting of antioxidants, ultraviolet absorbers, light stabilizers, infrared absorbers and antistatic agents. Use of these polymer-bonded functional agents can provide articles with improved functions.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 24, 2003
    Applicant: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Hiromitsu Yanagimoto, Hiroyuki Shimanaka, Rokuya Yamashita