Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284064 | Carbon steel material and processing method for strengthening the same | Akira Fujiwara, ATSUSHI SHIRAKAWA | 2001-09-04 |
| 5803854 | Silent chain having a sheared link bearing surface | Naosumi Tada, Kensuke Nakamura, Yoshiyuki Ohtaka | 1998-09-08 |
| 5575064 | Process for producing rocker arm for internal combustion engine | Akira Fujiwara, Noriyuki Yamada | 1996-11-19 |