Issued Patents All Time
Showing 1–25 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532133 | Recording medium cartridge with improved welding characteristics | Hiroshi Kaneda, Kenji Hashizume, Hisao Katoh, Masatoshi Okamura | 2003-03-11 |
| 5966360 | Cleaning disc cartridge | Yukio Miyazaki, Masaru Ikebe, Takateru Satoh, Mitsuo Watanabe, Toshihiko Ishida | 1999-10-12 |
| 5873538 | Magnetic tape cassette | Kenji Hashizume, Masatoshi Okamura | 1999-02-23 |
| 5657938 | Video tape cassette with fixing portions remotely positioned from the front lid | Masatoshi Okamura, Hiroshi Kaneda | 1997-08-19 |
| 5626305 | Tape cassette having ribs and window | Kenji Hashizume, Masatoshi Okamura | 1997-05-06 |
| 5621597 | Disc cartridge | Masaru Ikebe, Shinichi Satoh, Morimasa Sasaki | 1997-04-15 |
| 5524005 | Cartridge for a recording reproducing medium having a shutter configured to reduce damage to the casing | Masaru Ikebe, Yukio Miyazaki | 1996-06-04 |
| 5498456 | Disc cartridge | Masaru Ikebe, Yukio Miyazaki, Morimasa Sasaki, Hisao Katoh | 1996-03-12 |
| 5492283 | Tape casette and reel spring therefor | Masatoshi Okamura, Takashi Namioka | 1996-02-20 |
| 5441216 | Tape take-up hub | — | 1995-08-15 |
| 5385235 | Casing for housing a cartridge | Masaru Ikebe, Yukio Miyazaki | 1995-01-31 |
| 5367421 | Cartridge for a recording/reproducing medium having a transparent or semi-transparent cover member | Takateru Satoh, Takashi Namioka | 1994-11-22 |
| 5347416 | Disc cartridge having improved shutter | Masaru Ikebe | 1994-09-13 |
| 5326608 | Disc cartridge | Masaru Ikebe, Yukio Miyazaki | 1994-07-05 |
| 5325256 | Cartridge having a write protector integrally formed with the casing | Yukio Miyazaki, Masaru Ikebe | 1994-06-28 |
| 5303876 | Magnetic tape cassette | Hiroki Suzuki, Takateru Sato | 1994-04-19 |
| 5278717 | Disk cartridge | Morimasa Sasaki, Masaru Ikebe, Kenji Hashizume | 1994-01-11 |
| 5260931 | Disk cartridge with improved transmission shutter mechanism | Morimasa Sasaki, Masaru Ikebe | 1993-11-09 |
| 5247416 | Disk cartridge with friction-reducing sheet | Morimasa Sasaki, Masaru Ikebe | 1993-09-21 |
| 5232093 | Tape cassette housing | Kenji Hashizume, Masatoshi Okamura, Motohiko Shima | 1993-08-03 |
| 5205507 | Hub for tape cassette | Takateru Satoh, Masaru Ikebe, Hiroki Suzuki, Yukio Miyazaki | 1993-04-27 |
| 5195084 | Disc cartridge | Masaru Ikebe | 1993-03-16 |
| 5180118 | Magnetic tape cassettes | Kimio Tanaka, Shinichi Sato, Takateru Satoh | 1993-01-19 |
| 5172288 | Magnetic recording medium and a tape guide in a cartridge | Hiroshi Kaneda, Masatoshi Okamura | 1992-12-15 |
| 5168998 | Casing for receiving a magnetic tape cassette | Takateru Satoh, Tatsuo Fujii, Kimio Tanaka, Noboru Uemura | 1992-12-08 |