Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5711739 | Planetary gear transmission system | Koichi Hashimoto, Akihiro Ishibashi, Yosuke Ishida, Hidenori Shimizu | 1998-01-27 |
| 4615469 | Electrically powered squeezer for dispensing a viscous substance | Makoto Miyata, Shunichi Hata | 1986-10-07 |
| 4522270 | Hand-held electric tool | — | 1985-06-11 |
| 4493223 | Gear shifting speed change apparatus for a rotary electric tool | Hisao Nakagawa | 1985-01-15 |