Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811148 | Alloy magnetic recording head | Masaki Aoki, Hideo Torii, Hideyuki Okinaka, Hozumi Hirota | 1989-03-07 |
MS
Masayuki Sakai
Overall (1989): #79,072 of 140,708Top 60%
1
Patents 1989