Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D301967 | Power concrete hammer | Masakazu Sakamoto | 1989-07-04 |
| D301198 | Portable electric driver | Kiyoshi Hoshino | 1989-05-23 |
| 4784870 | Process for preparing paste food product | Hitoshi Yokoyama, Morio Furui, Katsuto Sahara, Yukiya Iwanaga | 1988-11-15 |
| D295945 | Portable electric jig saw | Masakazu Sakamoto | 1988-05-31 |
| D295254 | Door closer | Yoshihiko Matsuo | 1988-04-19 |
| D290966 | Printing machine | Koji Ishii, Tetsuyuki Doi | 1987-07-21 |
| 4303997 | Analog alarm timepiece | — | 1981-12-01 |
| 4298846 | Semiconductor device | Yutaka Hirano, Nobutoshi Fukuden | 1981-11-03 |
| 4250573 | Digital alarm wristwatch | — | 1981-02-10 |