Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879193 | Light sensitive material for making lithographic printing plate therefrom | Yoshikazu Takaya | 1989-11-07 |
| 4835070 | Magnetic recording medium and method of producing the same | Hideo Kurokawa, Tsutomu Mitani, Taketoshi Yonezawa | 1989-05-30 |