Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5041939 | Magnetic tape cassette with leaf-shaped spring door closure mechanism | Tsutomu Hiramoto, Masayuki Komeiji, Kimimoto Hirose, Minoru Sato, Yoshitaka Yasufuku | 1991-08-20 |
| 4951167 | Magnetic tape cassette with improved front cover supporting mechanism | Tsutomu Hiramoto, Masayuki Komeiji, Kimimoto Hirose, Minoru Sato, Yoshitaka Yasufuku | 1990-08-21 |
| 4697446 | Roll forming apparatus | Yoshun Yamamoto, Yutaka Watanabe, Eizo Uchiyama, Yutaka Yasunaga | 1987-10-06 |