Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702062 | Tape cassette | Nobuyuki Kaku, Yoshimi Maehara, Mikihisa Inoue | 1997-12-30 |
| 5617391 | Optical recording and reproducing system | Kenmei Masuda, Katsuo Konishi, Hiroyuki Nagatomo | 1997-04-01 |