Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D350148 | Electronic calculator | Makiko Yoshimura | 1994-08-30 |
| D315358 | Electronic calculator with printer | Hiroshi Sakaguchi, Keiichi Koyama | 1991-03-12 |
| D309624 | Electronic calculator | Hiroshi Sakaguchi, Mieko Harada | 1990-07-31 |
| D307595 | Electronic calculator | Hiroshi Sakaguchi, Mieko Harada | 1990-05-01 |
| D306176 | Combined calculator and cradle therefor | Hiroshi Sakaguchi, Masaki Kawamura | 1990-02-20 |
| D303980 | Electronic calculator | Hiroshi Sakaguchi, Toshiya Takahashi | 1989-10-10 |
| D303807 | Electronic calculator with memo | Hiroshi Sakaguchi, Toshiya Takahashi | 1989-10-03 |
| D303678 | Electronic calculator | Hiroshi Sakaguchi, Masaki Kawamura | 1989-09-26 |
| D303677 | Electronic calculator | Hiroshi Sakaguchi, Noriko Satake | 1989-09-26 |
| D303680 | Electronic calculator | Hiroshi Sakaguchi, Mieko Harada | 1989-09-26 |
| D299700 | Electronic thermometer | Hiroshi Sakaguchi, Masaki Kawamura | 1989-02-07 |
| D298774 | Electronic sphygmomanometer | Hiroshi Sakaguchi, Toshiya Takahashi | 1988-11-29 |
| D298623 | Pocket computer | Hiroshi Sakaguchi, Kazumi Osaka | 1988-11-22 |
| D298622 | Input/output device for electronic memo | Hiroshi Sakaguchi, Tadahiko Saimen | 1988-11-22 |
| D297947 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1988-10-04 |
| D297950 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1988-10-04 |
| D297949 | Electronic calculator | Hiroshi Sakaguchi, Toshiya Takahashi | 1988-10-04 |
| D297948 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1988-10-04 |
| D295875 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1988-05-24 |
| D294578 | Portable computer | — | 1988-03-08 |
| D294369 | Electronic calculator | Hiroshi Sakagushi, Kazumi Osaka | 1988-02-23 |
| D294370 | Printing calculator | Hiroshi Sakaguchi, Tadahiko Saimen | 1988-02-23 |
| D294280 | Printing calculator | Hiroshi Sakaguchi, Noriko Satake | 1988-02-16 |
| D293920 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1988-01-26 |
| D293689 | Printing calculator | Hiroshi Sakaguchi, Tadahiko Saimen | 1988-01-12 |