Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7775472 | Information medium | Takateru Satoh | 2010-08-17 |
| 7578464 | Tape reel and information recording apparatus | Takateru Satoh, Akio Momoi, Chotaro Kouzu | 2009-08-25 |
| 7552887 | Information medium | — | 2009-06-30 |
| 7497397 | Cartridge case and information recording medium | Hiroshi Kaneda, Chotaro Kouzu | 2009-03-03 |
| 7448569 | Cartridge case and information recording medium | Takateru Satoh | 2008-11-11 |
| 7364107 | Tape cartridge | Takateru Satoh, Chotaro Kouzu | 2008-04-29 |
| 7357344 | Information medium | — | 2008-04-15 |
| 7350732 | Cartridge case and information recording medium | Takateru Satoh | 2008-04-01 |
| 7343613 | Disc cartridge having disc access opening | Kenji Hashizume | 2008-03-11 |
| 7290734 | Tape reel and information recording medium | Takateru Satoh, Akio Momoi, Chotaro Kouzu | 2007-11-06 |
| 7284722 | Information recording medium | Takateru Satoh | 2007-10-23 |
| 7195192 | Tape cartridge | Takateru Satoh | 2007-03-27 |
| 5621597 | Disc cartridge | Masaru Ikebe, Haruo Shiba, Shinichi Satoh | 1997-04-15 |
| 5498456 | Disc cartridge | Masaru Ikebe, Haruo Shiba, Yukio Miyazaki, Hisao Katoh | 1996-03-12 |
| 5288543 | Protective film on sliding members and method of forming same | Kunihiro Ueda, Masaru Ikebe | 1994-02-22 |
| 5278717 | Disk cartridge | Haruo Shiba, Masaru Ikebe, Kenji Hashizume | 1994-01-11 |
| 5260931 | Disk cartridge with improved transmission shutter mechanism | Haruo Shiba, Masaru Ikebe | 1993-11-09 |
| 5247416 | Disk cartridge with friction-reducing sheet | Haruo Shiba, Masaru Ikebe | 1993-09-21 |
| 5153801 | Disk cartridge having coupled shutters for closing plural cartridge openings | Masaru Ikebe, Haruo Shiba, Kenji Hashizume | 1992-10-06 |
| 5091814 | Disk cartridge having discontinuous hub-position determining rib | Masaru Ikebe, Haruo Shiba | 1992-02-25 |
| 5081556 | Protective casing for a magnetic disk | Masaru Ikebe, Haruo Shiba | 1992-01-14 |
| 5018039 | Disc cartridge with thick portion surrounding head insertion hole | Haruo Shiba, Masaru Ikebe | 1991-05-21 |
| 4984120 | Cleaning cassette for a video cassette tape deck | Takateru Satoh, Kenji Hashizume, Kimio Tanaka | 1991-01-08 |
| 4905113 | Magnetic tape cassette having a slider mounted on the lower casing member | Haruo Shiba, Takateru Satoh, Masaru Ikebe | 1990-02-27 |
| 4862448 | Disc cartridge and casing therefor | Kimio Tanaka, Masaru Ikebe | 1989-08-29 |