Issued Patents All Time
Showing 76–100 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4769730 | Magnetic tape cassette with an improved guard panel | Masatoshi Okamura | 1988-09-06 |
| 4768123 | Magnetic disk cartridge and producing method therefor | Michio Iizuka | 1988-08-30 |
| 4757412 | Disk cartridge | Michio Iizuka | 1988-07-12 |
| 4748529 | Magnetic tape cassette with anti-friction tape guides | Kimio Tanaka | 1988-05-31 |
| 4747007 | Spring means for biasing a tape against a head inserted in a cassette | Masaru Ikebe, Kimio Tanaka, Takateru Satoh | 1988-05-24 |
| 4742418 | Tape cassette with means for limiting movement of reel brake | Kimio Tanaka, Takateru Satoh | 1988-05-03 |
| 4739434 | Disk cartridge having a hub including a stepped portion | Michio Iizuka | 1988-04-19 |
| 4737875 | Device for preventing obstruction by a tape cassette cover | Takateru Satoh, Kimio Tanaka | 1988-04-12 |
| 4734812 | Tape cartridge with erasure-preventing indicator plug | Kimio Tanaka, Yoshiya Sakata | 1988-03-29 |
| 4733317 | Magnetic tape cassette having a tape passage including ribs | Takateru Sato | 1988-03-22 |
| 4727445 | Device for opening/closing a protective cover on a magnetic tape cassette and protecting the cassette interior from contamination | Takateru Satoh, Kimio Tanaka, Yoshiya Sakata | 1988-02-23 |
| 4720055 | Tape clamp mechanism for reel hub of tape cassette | Takateru Satoh | 1988-01-19 |
| 4717980 | Tape cassette with low friction slide member for guiding movement of a lid thereon | Kenji Hashizume, Masatoshi Okamura | 1988-01-05 |
| 4710839 | Magnetic disc cartridge | Michio Iizuka | 1987-12-01 |
| 4707757 | Pressing spring for a magnetic tape cartridge | Yoshiya Sakata | 1987-11-17 |
| 4688128 | Magnetic tape cassette having two layered portions | Takateru Sato, Kimio Tanaka, Yoshiya Sakata | 1987-08-18 |
| 4682259 | Magnetic tape cassette with dustproof mechanism | Masatoshi Okamura, Kenji Hashizume, Yoshiya Sakata | 1987-07-21 |
| 4682258 | Video cassette cartridge construction | Takateru Satoh, Eiichi Nunokawa | 1987-07-21 |
| 4679109 | Tape cassette driven rib device | Masatoshi Okamura | 1987-07-07 |
| 4677516 | Disk cartridge having elastic pieces | Michio Iizuka | 1987-06-30 |
| 4663689 | Tape pad for a magnetic tape cassette | Masatoshi Okamura, Kenkichi Akaoka | 1987-05-05 |
| 4656550 | Disk cartridge | Michio Iizuka | 1987-04-07 |
| 4631619 | Magnetic tape cassette having improved reel locking means | Kenji Hashizume, Masatoshi Okamura | 1986-12-23 |
| 4628389 | Lock member for the lid of a magnetic tape cassette | Kimio Tanaka, Yoshiya Sakata | 1986-12-09 |
| 4626948 | Magnetic tape cartridge pivot pin and supporting member | Kimio Tanaka, Yoshiya Sakata | 1986-12-02 |