Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5053464 | Polyurethane containing metal phthalocyanine in the main chain | Hirofusa Shirai, Naomi Masuda, Nobuhisa Tsutsumi | 1991-10-01 |
| 4689357 | Vibration isolator | Toshio Suzuki, Yoshihiko Ogawa, Takeshi Itoh | 1987-08-25 |
| 4652495 | Resilient coat for tie of direct-connection type track | Yoshihiko Sato, Fujio Ohishi, Toshio Suzuki, Yoshihiko Ogawa | 1987-03-24 |
| 4302552 | Microcellular polyurethane vibration isolator | Toshio Suzuki, Yoshihiko Ogawa | 1981-11-24 |