Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616448 | Photosensitive resin composition and a process for forming a patterned polyimide film using the same | — | 1997-04-01 |
| 5605942 | Contact lens material | Haruyuki Hiratani, Kazuhiko Nakada, Shoji Ichinohe, Toshio Yamazaki | 1997-02-25 |
| 5590855 | Train detection device for railroad models and train crossing control apparatus utilizing the train detection device | Ryochi Kato, Umeko Kato, Tomohiko Kato, Teruko Ichizuka | 1997-01-07 |