Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5967904 | Golf club head | Yoshitaka Nagai, Masaki Sato | 1999-10-19 |
| 5405462 | Superplastic aluminum-based alloy material and production process thereof | Tsuyoshi Masumoto, Akihisa Inoue, Kenji Higashi, Makoto Kawanishi | 1995-04-11 |
| 5332456 | Superplastic aluminum-based alloy material and production process thereof | Tsuyoshi Masumoto, Akihisa Inoue, Kenji Higashi, Makoto Kawanishi | 1994-07-26 |
| 5279642 | Process for producing high strength aluminum-based alloy powder | — | 1994-01-18 |
| 5221375 | Corrosion resistant aluminum-based alloy | Junichi Nagahora, Kazuo Aikawa, Hideki Takeda, Keiko Yamagata | 1993-06-22 |
| 5122205 | Corrosion resistant aluminum-based alloy | Tsuyoshi Masumoto, Akihisa Inoue, Junichi Nagahora, Kazuo Aikawa, Madoka Nakajima +1 more | 1992-06-16 |