Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10936757 | Registration destination determination device, searchable encryption system, destination determination method, and computer readable medium | Takashi Ito, Mitsuhiro Hattori, Yoichi Shibata, Takumi Mori, 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, Takashi Ito, Takumi Mori, Takato Hirano | 2020-08-04 |
| 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 | Takumi Mori, Yutaka Kawai | 2020-03-17 |
| 10361840 | Server apparatus, search system, terminal apparatus, search method, non-transitory computer readable medium storing server program, and non-transitory computer readable medium storing terminal program | Takato Hirano, Yutaka Kawai, Mitsuhiro Hattori, Takashi Ito | 2019-07-23 |
| 10311239 | Genetic information storage apparatus, genetic information search apparatus, genetic information storage program, genetic information search program, genetic information storage method, genetic information search method, and genetic information search system | Shigeki TANISHIMA | 2019-06-04 |
| 10235539 | Server device, recording medium, and concealed search system | Takashi Ito, Mitsuhiro Hattori, Takumi Mori, Takato Hirano | 2019-03-19 |
| 10216959 | Method and systems using privacy-preserving analytics for aggregate data | Ye Wang, Mitsuhiro Hattori, Takato Hirano, Rina SHIMIZU | 2019-02-26 |
| 10116442 | Data storage apparatus, data updating system, data processing method, and computer readable medium | Takumi Mori, Yutaka Kawai | 2018-10-30 |
| 10063348 | Retransmission data processing device, retransmission data communication device, retransmission data communication system, retransmission data processing method, retransmission data communication method, and non-transitory computer readable medium for detecting abnormality by comparing retransmission data to transmission data | Takato Hirano, Kazuhiro Kusunoki, Akihiro Miura | 2018-08-28 |
| 9418238 | Search system, search method of search system, and information processing device | Takashi Ito, Mitsuhiro Hattori, Kazuo Ota, Yusuke Sakai | 2016-08-16 |
| 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, Takashi Ito, Takumi Mori, 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, Takumi Mori, Takashi Ito, Tsutomu Sakagami | 2016-03-01 |
| 9237137 | Key generation device, key generation program, secret search system, and key distribution method | Mitsuhiro Hattori, Takato Hirano, Takashi Ito | 2016-01-12 |
| 9237013 | Encrypted data management device, encrypted data management method, and encrypted data management program | Sachihiro Ichikawa, Tadakazu YAMANAKA, Katsuyuki Takashima | 2016-01-12 |
| 9111106 | Data processing apparatus and data storage apparatus | Takashi Ito, Mitsuhiro Hattori, Takumi Mori, Takato Hirano | 2015-08-18 |
| 8958552 | Data processing device | Mitsuhiro Hattori, Yoichi Shibata, Takashi Ito, Katsuyuki Takashima, Takeshi Yoneda | 2015-02-17 |
| 8615668 | Confidential search system and cryptographic processing system | Mitsuhiro Hattori, Takashi Ito, Takeshi Yoneda | 2013-12-24 |
| 8424054 | Secret information management apparatus, information processing apparatus, and secret information management system | Mitsuhiro Hattori, Takeshi Yoneda | 2013-04-16 |
| 8286005 | Confidential information memory apparatus, erasing method of confidential information, and erasing program of confidential information | Mitsuhiro Hattori, Takeshi Yoneda | 2012-10-09 |
| 8225415 | Content distribution system, terminal, and server | Takehiko Koyasu, Atsushi Kohno, Kimihiko Izaki, Tatsuya Tsurukawa | 2012-07-17 |