Issued Patents 1989
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304718 | Input/output device for electronic memo | Masaki Kawamura | 1989-11-21 |
| D304175 | Input/output terminal | Masaki Kawamura | 1989-10-24 |
| D303980 | Electronic calculator | Takahisa Yubisui, Toshiya Takahashi | 1989-10-10 |
| D303807 | Electronic calculator with memo | Takahisa Yubisui, Toshiya Takahashi | 1989-10-03 |
| D303681 | Electronic calculator | Toshiya Takahashi | 1989-09-26 |
| D303679 | Electronic calculator | Katsuhiro Iida, Toshiya Takahashi | 1989-09-26 |
| D303677 | Electronic calculator | Takahisa Yubisui, Noriko Satake | 1989-09-26 |
| D303678 | Electronic calculator | Takahisa Yubisui, Masaki Kawamura | 1989-09-26 |
| D303680 | Electronic calculator | Takahisa Yubisui, Mieko Harada | 1989-09-26 |
| D303539 | Electronic calculator | Katsuhiro Iida, Toshiya Takahashi | 1989-09-19 |
| D303121 | Electronic calculator | Katsuhiro Iida, Toshiya Takahashi | 1989-08-29 |
| D299812 | Electronic thermometer | Yoko Ikuzawa | 1989-02-14 |
| D299700 | Electronic thermometer | Takahisa Yubisui, Masaki Kawamura | 1989-02-07 |