Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6466385 | Method and apparatus of forming a magnetic disk with a servo sector and a data sector on a spiral track | Yoshio Umeda, Ryosuke Shimizu, Tatsuaki Ishida, Kiyokazu Tohma, Keizo Miyata | 2002-10-15 |