Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5745202 | LCD having light interceptive members for shielding light from external driving circuits | Yasuhiro Imai | 1998-04-28 |
| 4483230 | Illumination level/musical tone converter | — | 1984-11-20 |
| 4367958 | Correction signal generating system for an electronic timepiece | Hisashi Kawahara, Tadashi Hanaoka | 1983-01-11 |
| 4247927 | Digital electronic timepiece | Mituo Oooka, Makoto Yoshida, Choken Suzuki | 1981-01-27 |