Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859036 | Device plate having conductive films selected to prevent pin-holes | Fumie Yamanaka, Toshifumi Yoshioka | 1989-08-22 |
| 4795793 | Fluorine-containing copolymer and oil and water repellent composition containing the same | Yoshio Amimoto, Masayoshi Shinjo, Kazunori Hayashi | 1989-01-03 |