Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D309623 | Electronic calculator | Katsuhiro Iida, Toshiya Takahashi | 1990-07-31 |
| D309625 | Electronic calculator | Toshiya Takahashi | 1990-07-31 |
| D309628 | Case for electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1990-07-31 |
| D309153 | Electronic calculator | Toshiya Takahashi | 1990-07-10 |
| D308985 | Electronic calculator with printer | Katsuhiro Iida | 1990-07-03 |
| D308534 | Electronic calculator | Katsuhiro Iida, Toshiya Takahashi | 1990-06-12 |
| D307293 | Case for electronic calculator | Toshiya Takahashi | 1990-04-17 |
| D307032 | Electronic calculator with solar cell | Toshiya Takahashi | 1990-04-03 |
| D306298 | Autodialer with electronic telephone directory | Tadahiko Saimen | 1990-02-27 |
| D289177 | Electronic calculator | — | 1987-04-07 |
| D285311 | Electronic calculator | — | 1986-08-26 |
| D284474 | Portable computer | — | 1986-07-01 |
| D281886 | Electronic printing calculator | Hiroshi Sakaguchi, Shigeaki Hayashi, Kazuo Yamada | 1985-12-24 |
| D281435 | Printing calculator | Hiroshi Sakaguchi, Shigeaki Hayashi, Kazuo Yamada | 1985-11-19 |
| D280418 | Electronic printing calculator | Shigeaki Hayashi, Hiroshi Sakaguchi, Kazuo Yamada | 1985-09-03 |
| D280209 | Electronic printing calculator | Shigeaki Hayashi, Hiroshi Sakaguchi, Kazuo Yamada | 1985-08-20 |
| D279196 | Electronic calculator with watch | Shigeru Kurozumi | 1985-06-11 |
| D279108 | Printing calculator | — | 1985-06-04 |
| D279105 | Electronic calculator | — | 1985-06-04 |
| D279106 | Desk-top calculator | Hiroshi Sakaguchi, Shigeaki Hayashi, Kazuo Yamada | 1985-06-04 |
| D278156 | Printing calculator | Hiroshi Sakaguchi, Shigeaki Hayashi, Kazuo Yamada | 1985-03-26 |
| D275768 | Electronic calculator | — | 1984-10-02 |
| D273302 | Electronic calculator | — | 1984-04-03 |
| D273301 | Electronic calculator with solar batteries | — | 1984-04-03 |
| D273199 | Calculator with printer | — | 1984-03-27 |