Patents by Inventor Hisayasu Honma

Hisayasu Honma 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).

  • Magnetic recording apparatus
    Patent number: 5307214
    Abstract: A magnetic recording apparatus for recording information on a magnetic recording medium. A circuit for generates a recording current pulse train and supplies the pulse train to a magnetic head. The last pulse of the recording current pulse train dampled waveform. A ripple current is superposed on the damped waveform.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: April 26, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kawakami, Yoshiakira Karakama, Masayuki Takagi, Takayoshi Ohtsu, Hisayasu Honma, Tetsuo Kobayashi, Yutaka Sugita, Katsuya Mitsuoka