Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330851 | Corrosion resistant Al or Al alloy materials | Toyohiko Konno | 1994-07-19 |
| 5286312 | High-strength spring steel | Masataka Shimotsusa, Masao Toyama, Sinichi Ohnishi, Takahiko Nagamatsu | 1994-02-15 |