Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833665 | Information recording control system reusing a defective area | Kenji Tokumitsu, Michio Miyazaki, Yuji Yamane, Nobuyoshi Izawa, Toru Takeda | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833665 | Information recording control system reusing a defective area | Kenji Tokumitsu, Michio Miyazaki, Yuji Yamane, Nobuyoshi Izawa, Toru Takeda | 1989-05-23 |