Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675482 | Accident detection circuit of a voltage-type self-excited power converter | Noriko Kawakami, Haruhisa Inokuchi | 1997-10-07 |
| 5633862 | DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal | Sakari Ohira, Fujio Sumi, Osamu Suzuki | 1997-05-27 |
| 5608008 | Polypropylene resin composition and molded product | Hiroshi Miyata, Masayuki Yamaguchi | 1997-03-04 |