Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6149734 | Method for heat treatment of steel | Takefumi Isogai, Masahiko Sato, Yoshio Kono | 2000-11-21 |
| 5553371 | Method of manufacturing friction plates | Tadashi Higuchi, Takaaki Nakano, Shigenobu Tara | 1996-09-10 |