Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6459658 | Electronic timepiece having thermoelectric element | Susumu Fujita, Tokuya Akase, Yoshimitsu Kurasawa | 2002-10-01 |
| 4274150 | Electronic watch | Masataka Ikenishi, Shozo Kushida, Hiromasa Nakanishi, Makoto Ueda, Masaharu Shida | 1981-06-16 |
| 4271494 | Correcting device for calendar in an analog type electronic watch | — | 1981-06-02 |
| 4241433 | Electronic watch | Makoto Ueda, Masaharu Shida, Masataka Ikenishi, Shozo Kushida, Hiromasa Nakanishi | 1980-12-23 |
| 4216646 | Electronic watch | Masataka Ikenishi, Shozo Kushida, Hiromasa Nakanishi | 1980-08-12 |
| 4211066 | Stop watch | Yasuo Kusumoto | 1980-07-08 |
| 4204395 | Calendar mechanism of a portable timepiece | Masataka Ikenishi, Shozo Kushida, Hiromasa Nakanishi | 1980-05-27 |