Patents by Inventor Yuzuru Kondo

Yuzuru Kondo 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).

  • Method for producing polyimide film
    Patent number: 6264866
    Abstract: A method for producing a polyimide film in which the imidation ratio and/or the amount of volatile constituent are controlled to improve the adhesive strength of the polyimide film. The method may also comprise controlling the highest temperature of heating the prefilm to improve the adhesive strength of the polyimide film.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: July 24, 2001
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hirofumi Yamada, Manabu Fukudome, Naoki Egawa, Yuzuru Kondo, Haruhiko Maki
  • Magnet filter
    Patent number: 4773995
    Abstract: An improved magnet filter of the type in which a planar magnet piece (1) is wrapped by a magnetically permeable plate (2) made of magnetic metal, is disclosed. The improvements are that a sheet spring piece (3) in sandwiched between the respective bottom portions of the permanent magnet piece (1) and the magnetically permeable plate (2), and flexed pieces (3a, 3b.sub.1, 3b.sub.2) at the opposite ends of the sheet spring piece (3) project from the magnet filter so as to extend obliquely upwards on the outside of the magnet filter.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: September 27, 1988
    Assignee: Nihon Gijutsu Kaihatsu Kabushiki Kaisha
    Inventor: Yuzuru Kondo