Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8627026 | Storage apparatus and additional data writing method | Taketoshi Sakuraba, Hidehisa Arikawa | 2014-01-07 |
| 7711714 | Method and a device for sterilizing downloaded files | Kazuo Takaragi, Hiroshi Yoshiura | 2010-05-04 |
| 7149930 | Recording/reproducing apparatus | Hitoshi Ogawa, Yukie Hiratsuka | 2006-12-12 |
| 7139759 | Method and a device for managing a computer network | Kazuo Takaragi, Hiroshi Yoshiura | 2006-11-21 |
| 7073037 | System for controlling host access to a storage device based on physical characteristics of the storage device | Atsushi Okuyama, Hitoshi Ogawa, Kazuaki Usui | 2006-07-04 |
| 6311277 | Method and device for managing computer network | Kazuo Takaragi, Hiroshi Yoshiura | 2001-10-30 |
| 6272225 | Key recovery condition encryption and decryption apparatuses | Hiroshi Miyauchi, Kazue Sako, Masashi Yamazaki, Hiroyoshi Tsuchiya, Seiko Kanno +4 more | 2001-08-07 |
| 6266421 | Key recovery system and key recovery method | Hiroyoshi Tsuchiya, Seiko Kanno, Hiroyuki Ando, Ichirou Morita, Yasutsugu Kuroda +4 more | 2001-07-24 |
| 6185308 | Key recovery system | Hiroyuki Ando, Ichirou Morita, Yasutsugu Kuroda, Naoya Torii, Masashi Yamazaki +4 more | 2001-02-06 |
| 6118874 | Encrypted data recovery method using split storage key and system thereof | Eiji Okamoto, Masahiro Mambo, Hiroyoshi Tsuchiya, Tooru Kawai, Kazuo Takaragi +2 more | 2000-09-12 |
| 5872530 | Method of and apparatus for compressing and decompressing data and data processing apparatus and network system using the same | Hiroshi Yoshiura, Yoshiaki Hattori, Yutaka Otsu, Hiromasa Murakami | 1999-02-16 |
| 5559984 | Distributed file system permitting each user to enhance cache hit ratio in file access mode | Hirohiko Nakano, Takaki Kuroda, Naofumi Shouji, Atsushi Kobayashi | 1996-09-24 |
| 5361349 | Virtual object management system for managing virtual objects which correspond to real objects under a user defined hierarchy | Yumiko Sugita, Hisashi Hashimoto, Masaki Tsuruki | 1994-11-01 |