Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5964039 | Cutting method and saw tool | Soichiro Mizoguchi, Kunihiko Tatsu, Hidezumi Okamura, Hideo Hatta | 1999-10-12 |
| 5855157 | Saw blade | Hidezumi Okamura, Ryuji Ohtani, Isao Fuwa, Noboru Kusano, Masahiro Ikegami +1 more | 1999-01-05 |