Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D315354 | Book reader for the blind | Nobuyoshi Katayama, Hirohiko Katayama | 1991-03-12 |
| D305436 | Printer | Koji Terasawa | 1990-01-09 |
| D303981 | Dest-top electronic calculator | Keiko Takemata | 1989-10-10 |
| D298545 | Desk-top electronic calculator | Keiko Takemata, Akihiko Kobayashi, Takeshi Hasegawa, Shigeki Mori | 1988-11-15 |
| D298546 | Desk-top electronic calculator | Keiko Takemata, Akihiko Kobayashi, Takeshi Hasegawa | 1988-11-15 |
| D298547 | Desk-top electronic calculator | Keiko Takemata, Akihiko Kobayashi, Yasuhide Saito | 1988-11-15 |
| D298548 | Desk-top electronic calculator | Keiko Takemata, Akihiko Kobayashi, Yasuhide Saito | 1988-11-15 |
| D289416 | Desk-top electronic calculator | Hideo Fushimoto | 1987-04-21 |
| D289418 | Desk-top electronic calculator | Osamu Murakami | 1987-04-21 |
| D289419 | Desk-top electronic calculator | Hideo Fushimoto | 1987-04-21 |
| D287508 | Desk-top electronic calculator | Kaname Suwa | 1986-12-30 |
| D287507 | Desk-top electronic calculator | Yuji Harada | 1986-12-30 |
| D285933 | Desk-top electronic calculator | Kaname Suwa | 1986-09-30 |
| D285934 | Desk-top electronic calculator | Kaname Suwa | 1986-09-30 |
| D282854 | Desk-top electronic calculator | Yuji Harada | 1986-03-04 |
| D282853 | Desk-top electronic calculator | Osamu Murakami | 1986-03-04 |
| D269356 | Desk top electronic calculator | Kaname Suwa, Masumi Ishiwatari | 1983-06-14 |
| D269277 | Desk-top electronic calculator | Osamu Murakami, Kaname Suwa | 1983-06-07 |
| D269278 | Desk-top electronic calculator | Kazuhiro Arakawa | 1983-06-07 |
| D268422 | Electronic calculator | Osamu Murakami | 1983-03-29 |
| D268423 | Electronic calculator | Kaname Suwa | 1983-03-29 |
| D266853 | Desk-top electronic calculator | Tsutomu Okuyama | 1982-11-09 |
| D266855 | Electronic calculator with thermometer and timer | Osamu Murakami | 1982-11-09 |
| D265913 | Desk top electronic calculator | Hideo Fushimoto | 1982-08-24 |
| D263602 | Desk-top electronic calculator | Junichi Motoyoshi | 1982-03-30 |