Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11442922 | Data management method, data management apparatus, and non-transitory computer readable medium | — | 2022-09-13 |
| 10657139 | Information processing apparatus and non-transitory computer readable medium for distributed resource management | — | 2020-05-19 |
| 9467291 | Information processing system, information processing method, and non-transitory computer readable medium for processing requests using an authority object | — | 2016-10-11 |
| 8700582 | Document handling history management system and method | — | 2014-04-15 |
| 8418048 | Document processing system, document processing method, computer readable medium and data signal | Meng Shi | 2013-04-09 |
| 8086570 | Secure document management using distributed hashing | Shigehisa Kawabe, Setsu Kunitake, Yoshihiro Ueda, Kenichi Numata, Akira Suzuki +2 more | 2011-12-27 |
| 8069243 | Document management server, method, storage medium and computer data signal, and system for managing document use | Setsu Kunitake, Shigehisa Kawabe | 2011-11-29 |
| 7765474 | Electronic-document management system and method | Meng Shi | 2010-07-27 |
| 7433919 | Information processing system | — | 2008-10-07 |
| 7137007 | Device and method for authenticating user's access rights to resources | Rumiko Kakehi | 2006-11-14 |
| 7000110 | One-way function generation method, one-way function value generation device, proving device, authentication method, and authentication device | — | 2006-02-14 |
| 6690794 | Electronic ticket system | Mitsuhisa Kamei, Hisashi Nakatsuyama | 2004-02-10 |
| 6651167 | Authentication method and system employing secret functions in finite Abelian group | Kil-Ho Shin | 2003-11-18 |
| 6615352 | Device and method for authenticating user's access rights to resources | Rumiko Kakehi, Masaki Kyojima | 2003-09-02 |
| 6567916 | Method and device for authentication | Rumiko Kakehi, Masaki Kyojima | 2003-05-20 |
| 6275936 | Decryption method and device, and access right authentication method and apparatus | Masaki Kyojima, Rumiko Kakehi, Koji Takeda | 2001-08-14 |
| 5436734 | Image-edit processing apparatus | Tomonari Yamauchi, Kazuya Yamada, Takashi Nagao, Toshiya Yamada | 1995-07-25 |