Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5282673 | Compound resin wheel | Haruo Koyama, Kunio Machida, Yoshihide Fukahori | 1994-02-01 |
| 5277479 | One piece type resin wheel | Haruo Koyama, Kunio Machida, Yoshihide Fukahori | 1994-01-11 |