Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862439 | Recording device that identifies recordable areas of a disk record | Ryo Ando, Kazuhiko Fujiie, Toshio Yoshida | 1989-08-29 |
| 4858217 | Optical disk recording and reproducing device | Kazuhiko Fujiie, Ryo Ando | 1989-08-15 |
| 4808708 | Phosphorsulfide derivatives of deoxynucleosides or deoxynucleotides and their uses | Kaoru Kimura | 1989-02-28 |