Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808437 | Method for producing magnetic recording medium | Hiroshi Suzuki, Tomiharu Hosaka, Masanaru Hasegawa | 1989-02-28 |
AK
Akira Kisoda
Overall (1989): #134,683 of 140,708Top 100%
1
Patents 1989