Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7555764 | Cartridge and shutter used in the same | Hiroya Kondou, Kaoru Kajita | 2009-06-30 |
| 5796563 | Tape cassette having locking front cover with ribs or projection | Kenji Iwano | 1998-08-18 |
| 5654855 | Tape cassette having ribs for regulating axial movement of the tape reels | Kenji Iwano | 1997-08-05 |
| 5475555 | Cassette condition indicating device having plug with multiple selectable positions | Kenji Iwano | 1995-12-12 |
| 5240200 | Tape cassette | Akihiro Nishimura, Toru Ichimura, Shuji Uematsu, Kenji Iwano | 1993-08-31 |
| 5237974 | Triple-intake-valve internal combustion engine | Jun Isomoto, Masaji Mukao | 1993-08-24 |
| 4844377 | Tape cassette | Toshibumi Kamiyama, Akihiro Nishimura, Masao Kawagishi, Hideki Sakumoto, Masahiko Matsui | 1989-07-04 |
| 4809113 | Tape cassette with improved cover structure | Akihiro Nishimura, Masao Kawagishi, Hideki Sakumoto, Masahiko Matsui | 1989-02-28 |
| 4803575 | Tape cassettes having bottom grooves for use in tape recorder having bottom projection in cassette holder | Akihiro Nishimura, Masao Kawagishi, Hideki Sakumoto, Masahiko Matsui | 1989-02-07 |