Patents by Inventor Haruyo Amada

Haruyo Amada 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).

  • Preparation of gels derived from carboxymethyl cellulose alkali metal salt
    Patent number: 8633254
    Abstract: A method of preparing a gel from carboxymethyl cellulose alkali metal salt, which is an anionic cellulose derivative, by using acid or acid solution. To increase the strength and the elasticity of a gel, a water-insoluble metal compound or organic reinforcement is added when mixing. The obtained gel is one of environmentally friendly type gels because the raw material is derived from plant.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: January 21, 2014
    Assignees: Japan Atomic Energy Agency
    Inventors: Machiko Takigami, Haruyo Amada, Naotsugu Nagasawa, Toshiaki Yagi, Masao Tamada, Noboru Kasai, Fumio Yoshii, Akihiro Hiroki
  • PREPARATION OF GELS DERIVED FROM CARBOXYMETHYL CELLULOSE ALKALI METAL SALT
    Publication number: 20080070997
    Abstract: A method of preparing a gel from carboxymethyl cellulose alkali metal salt, which is an anionic cellulose derivative, by using acid or acid solution. To increase the strength and the elasticity of a gel, a water-insoluble metal compound or organic reinforcement is added when mixing. The obtained gel is one of environmentally friendly type gels because the raw material is derived from plant.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 20, 2008
    Inventors: Machiko TAKIGAMI, Haruyo Amada, Naotsugu Nagasawa, Toshiaki Yagi, Masao Tamada, Noboru Kasai, Fumio Yoshii, Akihiro Hiroki