Patents by Inventor Kazuhiko Itakura

Kazuhiko Itakura 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).

  • Electric-power supplying devices switching between a synchronous rectification and a diode rectification by gradually altering a switching pulse
    Publication number: 20030081433
    Abstract: This electric-power supplying device comprises switching elements, rectifying elements, and a control circuit. The switching elements are switched according to a switching pulse so as to perform a rectification. The rectifying elements are connected in parallel with the switching elements so as to perform a rectification. The control circuit alters the switching pulse gradually upon switching between the rectification performed by the switching elements and the rectification performed by the rectifying elements.
    Type: Application
    Filed: March 29, 2002
    Publication date: May 1, 2003
    Inventors: Kazuhiko Itakura, Hiroshi Shimamori, Kazutoshi Fuchigami, Tsunehiro Ohino
  • Fluorescent display device with conductive layer comprising aluminum paste
    Patent number: 6525468
    Abstract: A fluorescent display device cable of being significantly increased in emission. A grid electrode is formed of a nonleaded conductive paste constituted by Al containing at least one of organic metal and phosphate glass frit by screen printing. This positively prevents precipitation of Pb on the grid electrode due to reduction of PbO by oxidation of Al during calcination of the conductive paste as encountered with the prior art.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: February 25, 2003
    Assignee: Futaba Corporation
    Inventors: Hiroyuki Wada, Junichiro Kogure, Masahiro Kato, Kazuhiko Itakura, Akio Namiki, Yoshinari Okamoto, Toshinori Suzuki