Patents by Inventor Manabu Tanuma

Manabu Tanuma 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).

  • Styrene resin films
    Patent number: 6709754
    Abstract: Styrene resin films having been imparted antistatic properties to both film surfaces and good adhesion properties of the films to envelope paper, and a process for producing the same. In these styrene resin films, the surface tension of the front surface of the film base differs from the surface tension of the back surface owing to a hydrophilic treatment and modifiers having almost the same compositions are applied onto the respective surfaces each in an adequate weight.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: March 23, 2004
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kouichi Yasukata, Manabu Tanuma, Yoshiyuki Tazuke, Osamu Mizukami