Patents by Inventor Yoshiki Akamatsu

Yoshiki Akamatsu 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).

  • Resistor and electron device employing the same
    Patent number: 4804940
    Abstract: A resistor is provided with a plurality of turn parts whose corners have an obtuse flexional angle in order to improve the relative resistance precision. A ladder resistor can be formed with a plurality of such resistors connected in series, and various electronic devices are formed employing the ladder resistor.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: February 14, 1989
    Assignees: Hitachi, Ltd., Hitachi Microcomputer Eng.
    Inventors: Akira Takigawa, Shizuo Kondo, Masumi Kasahara, Toshinori Hirashima, Mikio Haijima, Setsuo Ogura, Osamu Takada, Yoshiki Akamatsu