Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4989958 | Focus adjusting apparatus provided with a focus lens member formed of polymer gel substance having electro-reactive deformability | Yuji Hamada, Masakazu Sakata, Yoshitaka Nishio, Yoshikazu Tsujino, Kazuhiko Kuroki +1 more | 1991-02-05 |
| 4874646 | Ultrafine tube and method for its production | Yoshikazu Tsujino, Yuuji Hamada, Masakazu Sakata, Yukinori Kuwano | 1989-10-17 |