Patents by Inventor Yoshinobu Marumoto

Yoshinobu Marumoto 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).

  • Process of impregnating substrate and impregnated substrate
    Patent number: 6143369
    Abstract: Process of impregnating a layer substrate having openings which is substantially defined by opposing two main surfaces with a resin composition in the form of liquid, and the process is characterized in that one of the main surfaces and the resin composition are kept in such a contact condition that the substrate is located on the resin composition. A prepreg and a laminate are also provided which are produced by the use of the substrate which has been prepared by the above process.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: November 7, 2000
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yoshihisa Sugawa, Yasuo Tohrin, Yoshinobu Marumoto, Joji Sakakibara, Ken-ichi Shinotani, Kohei Kotera, Kenji Ogasawara, Keiko Kashihara, Tomoaki Iwami