Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9081943 | Storage device, protection method, and electronic apparatus | Koichi Nagai, Mitsunori Tadokoro, Teruji Yamakawa | 2015-07-14 |
| 9064108 | Storage device, storage system, and authentication method | Koichi Nagai, Mitsunori Tadokoro, Teruji Yamakawa | 2015-06-23 |
| 8850255 | Storage system control apparatus and control method for utilizing a relay unit of an abnormal control unit | Ryohei Nishimiya, Fumio Hanzawa, Masanori Ito, Kazuhiro Hara | 2014-09-30 |
| 8782804 | Storage device, storage system, and authentication method | Koichi Nagai, Mitsunori Tadokoro, Teruji Yamakawa | 2014-07-15 |
| 8762648 | Storage system, control apparatus and control method therefor | Minoru Muramatsu, Hidefumi Kobayashi | 2014-06-24 |
| 8713328 | Code conversion apparatus, code conversion method, and computer product | Kazuhiko Ikeuchi, Mikio Ito, Hidejirou Daikokuya, Chikashi Maeda, Fumio Hanzawa | 2014-04-29 |
| 8429462 | Storage system and method for automatic restoration upon loop anomaly | Daiya Nakamura, Kouichi Tukada, Atsushi Ishii | 2013-04-23 |
| 8307244 | Storage system and storage control apparatus | Kouichi Tsukada, Akira Sampei, Fumio Hanzawa, Hiroaki Sato | 2012-11-06 |
| 8074018 | Disk array apparatus, and control method and control program recording medium | Takashi Kawada, Osamu Kimura, Koji Yamaguchi, Chikashi Maeda | 2011-12-06 |
| 7558937 | Disk array device memory having areas dynamically adjustable in size | Osamu Kimura, Koji Uchida, Akihito Kobayashi | 2009-07-07 |
| 7509527 | Collection of operation information when trouble occurs in a disk array device | Takashi Kawada, Osamu Kimura | 2009-03-24 |
| 6278984 | Software processing apparatus writing software to a medium only if identification information in the software corresponds to identification information in the medium | Satoshi Itami, Kenichi Utsumi | 2001-08-21 |
| 6189014 | File management method for interchangeable storage media | Kenichi Utsumi | 2001-02-13 |
| 5982886 | Unauthorized use preventing method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus | Satoshi Itami, Kenichi Utsumi, Masahiro Nakada, Hiroshi Suzuki, Kazunori Naito +2 more | 1999-11-09 |
| 5930825 | Method and apparatus for preventing unauthorized use by comparing medium identifications | Kazunori Naito | 1999-07-27 |
| 5875247 | System for decrypting encrypted software | Masaru Nakahara, Satoshi Itami, Kenichi Utsumi | 1999-02-23 |
| 5835589 | Optical recording medium to store and access large volumes of data | — | 1998-11-10 |
| 5809300 | Removable storage medium and computer system using the same | Kenichi Utsumi, Koichi Ogawa, Makoto Yoshioka, Satoshi Itami, Kazunori Naito | 1998-09-15 |
| 5752009 | Recording medium for electronic publications including multiple format emulation | Masaru Nakahara, Kenichi Utsumi | 1998-05-12 |
| 5708650 | Multiple format interchangeable optical recording medium and method of controlling same | Kenichi Utsumi | 1998-01-13 |
| 5684785 | Optical disk and method of preventing fraudulent use of optical disk rotation synchronous control system | Satoshi Itami, Kenichi Utsumi, Kazunori Naito, Satoshi Komura | 1997-11-04 |
| 5661800 | Method and manufacture for preventing unauthorized use by judging the corresponding relationship between logical and physical addresses | Kazunori Naito | 1997-08-26 |
| 5422871 | Method and apparatus for producing an optical disk having a read-only area and a rewritable area | Kenichi Utsumi, Kazunori Naito | 1995-06-06 |
| 5418852 | Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus | Satoshi Itami, Kenichi Utsumi, Masahiro Nakada, Hiroshi Suzuki, Kazunori Naito +2 more | 1995-05-23 |
| 5402339 | Apparatus for making music database and retrieval apparatus for such database | Masahiro Nakada, Toshikatsu Narumi, Kazunori Naito | 1995-03-28 |