Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5075904 | Helmet with reinforcement | Ichiro Yoshida | 1991-12-31 |
| 5031720 | Speaker diaphragm | Shuhei Ohta, Masakatu Sakamoto, Shiro Iwakura, Ichiro Yoshida | 1991-07-16 |
| 4983433 | Fiber reinforced plastic and its reinforcement | — | 1991-01-08 |
| 4929503 | Composite fibrous material | Yoshio Tadokoro | 1990-05-29 |
| 4840826 | Fiber reinforced plastic solid or hollow molded article | Kenichi Inuzuka | 1989-06-20 |