Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811142 | Magnetic head for vertical magnetic recording and method of producing same | Keishi Nakashima, Tetsuya Iwata, Yasuo Tanaka | 1989-03-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811142 | Magnetic head for vertical magnetic recording and method of producing same | Keishi Nakashima, Tetsuya Iwata, Yasuo Tanaka | 1989-03-07 |