Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6144520 | Magnetic tape machine | Kengo Yamakawa, Yukio Katsuyama, Kenichi Utsumi | 2000-11-07 |
| 6023391 | Magnetic tape machine | Kengo Yamakawa, Yukio Katsuyama, Kenichi Utsumi, Hitomi Akiyama, Yoshiki Akiyama | 2000-02-08 |
| 5982120 | Library apparatus having a motor driving control including abnormal motor and excess current detecting circuits | Yoshiki Akiyama, Ryuuichi Miyaguchi, Masahiko Sakaguchi, Tatsuya Ohmido, Hitomi ONO | 1999-11-09 |
| 5886853 | Library apparatus | Kenichi Yoshida, Hiroaki Nishijo | 1999-03-23 |
| 5781369 | Magnetic tape apparatus with an auxiliary entry/exit mechanism | Kengo Yamakawa, Hiroyuki Sugihara | 1998-07-14 |
| 5767647 | Non-volatile memory controlling apparatus and applications of the same to electronic computer peripheral equipment | Yoshiki Akiyama | 1998-06-16 |
| 5742445 | Magnetic tape machine using friction data in controlling accessor speed | Hitomi Akiyama, Yoshiki Akiyama | 1998-04-21 |
| 5581522 | Library apparatus having accessor with bar code reader which rotates at a different horizontal position when reading a bar code failed at a first position | Hiroshi Sibuya, Yukio Katsuyama, Keisuke Hoshino | 1996-12-03 |