Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479683 | Cross roller bearing | — | 1984-10-30 |
| 4473412 | Annealing steel strip using molten B.sub.2 O.sub.3, SiO.sub.2 Na.sub.2 O, NaF glass bath | Shigeaki Maruhashi, Hiroto Matsumoto, Kousuke Sawashige | 1984-09-25 |