Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5578971 | Amplitude modulation circuit and method | Michitoshi Minami, Yutaka Kojima, Kazuhisa Hayeiwa | 1996-11-26 |
| 5574805 | Electric field sensor | Yoshikazu Toba, Michikazu Kondo, Yoshiro Sato, Kazuhisa Hayeiwa, Tadasu Ishikawa | 1996-11-12 |
| 5454013 | Amplitude modulation method and broadcasting apparatus for carrying out the method | Michitosi Minami, Yutaka Kojima, Tetsuroh Miyazaki, Kazuhisa Hayeiwa, Kazuaki Wakai +1 more | 1995-09-26 |
| 5347506 | Optical disk player including a plurality of independent pick-ups | Yasunori Matsudo | 1994-09-13 |