Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988479 | Method for producing a composite material | Ryuji Nishikawa, Hideya Takahashi | 1991-01-29 |
| 4186586 | Billet and process for producing a tubular body by forced plastic deformation | Masayuki Takamura, Kazuo Kurahashi, Masataka Hatae | 1980-02-05 |