Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5881024 | Combination display timepiece equipped with el illumination | Yuichi Kamei | 1999-03-09 |
| 4681460 | World time watch | — | 1987-07-21 |
| 4517953 | Ball throwing machine | Takatoshi Osaka, Tadahiko Nakagiri | 1985-05-21 |
| 4470706 | Analog type of electronic timepiece | Minoru Watanabe | 1984-09-11 |
| 4465341 | All solid state complementary electrochromic display devices | Takanori Nanya, Eigo Hashimoto | 1984-08-14 |
| 4435046 | Liquid crystal display device | — | 1984-03-06 |
| 4433918 | Analog display electronic timepiece with multi-mode display capability | Fukuo Sekiya | 1984-02-28 |
| 4419019 | Analog display type electronic timepiece | Minoru Watanabe | 1983-12-06 |
| 4407590 | Battery unit for an electric timepiece | Hideshi Ohno, Kazunari Kume, Takatoshi Osaka, Munetaka Tamaru, Sadao Ode | 1983-10-04 |
| 4312056 | Composite display type electronic timepiece | — | 1982-01-19 |
| 4297004 | Liquid crystal display cell | Takanori Nanya | 1981-10-27 |
| 4264970 | Liquid crystal display cell for an electronic timepiece | Takatoshi Nakayama, Toshihiko Nakayama | 1981-04-28 |
| 4188095 | Liquid type display cells and method of manufacturing the same | Takanori Nanya | 1980-02-12 |
| 4183629 | Electronic optical display device and method of manufacturing the same | Hisao Wakabayashi, Takatoshi Osaka, Kazunari Kume, Yasuhiro Ogura, Yukio Miya | 1980-01-15 |