Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319503 | Method and apparatus for writing successive streams of data on a magnetic medium by writing a cancel mark indicating the cancellation of a previously-written file mark | Shuichi Saito | 1994-06-07 |
| 5304226 | Abrasive grain and manufacture for the same | Tadashi Hiraiwa, Tetsuo Hatanaka | 1994-04-19 |