Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10936757 | Registration destination determination device, searchable encryption system, destination determination method, and computer readable medium | Takashi Ito, Nori Matsuda, Mitsuhiro Hattori, Yoichi Shibata, Takato Hirano +1 more | 2021-03-02 |
| RE48146 | Data search device, data search method, computer readable medium storing data search program, data registration device, data registration method, computer readable medium storing data registration program, and information processing device | Mitsuhiro Hattori, Nori Matsuda, Takashi Ito, Takato Hirano | 2020-08-04 |
| 10691815 | Attribute linkage apparatus, transfer system, attribute linkage method and computer readable medium | — | 2020-06-23 |
| 10592682 | Data storage apparatus, data processing method, and computer readable medium adding a user attribute of a revoked user to an embedded decryption condition while encrypted data remains in an encrypted state | Yutaka Kawai, Nori Matsuda | 2020-03-17 |
| 10235539 | Server device, recording medium, and concealed search system | Takashi Ito, Nori Matsuda, Mitsuhiro Hattori, Takato Hirano | 2019-03-19 |
| 10140460 | File storage system and user terminal | Sachihiro Ichikawa | 2018-11-27 |
| 10116442 | Data storage apparatus, data updating system, data processing method, and computer readable medium | Yutaka Kawai, Nori Matsuda | 2018-10-30 |
| 9764919 | Image forming apparatus, processing unit, and image forming method | Norio Tomita, Hiroshi Nakatani, Ryosuke Sakai, Kyosuke Taka, Kohichi Yamauchi | 2017-09-19 |
| 9391965 | Data search device, data search method, data search program, data registration device, data registration method, data registration program, and information processing device | Mitsuhiro Hattori, Nori Matsuda, Takashi Ito, Takato Hirano | 2016-07-12 |
| 9276746 | Encryption system, encryption processing method of encryption system, encryption device, decryption device, setup device, key generation device, and key delegation device using a user identifier for a user who belongs to a k-th hierarchy in an organization | Mitsuhiro Hattori, Takato Hirano, Takashi Ito, Nori Matsuda, Tsutomu Sakagami | 2016-03-01 |
| 9111106 | Data processing apparatus and data storage apparatus | Nori Matsuda, Takashi Ito, Mitsuhiro Hattori, Takato Hirano | 2015-08-18 |
| 9069318 | Image forming apparatus and processing unit | Norio Tomita, Hiroshi Nakatani, Ryosuke Sakai, Kyosuke Taka, Kohichi Yamauchi | 2015-06-30 |