Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846904 | Martensitic stainless steel having excellent hardness by subzero treatment | Hiroshi Arai, Tadahiko Murakami, Jyou Tanioka | 1989-07-11 |
| D274620 | Housing for a portable internal combustion engine | Michitsugu Murakami | 1984-07-10 |