Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12216787 | Searchable encryption system, searchable encryption method, and non-transitory computer-readable recording medium | Yutaka Kawai, Yoshihiro Koseki, Satoshi Yasuda | 2025-02-04 |
| 12061604 | Searchable encryption system | Yutaka Kawai, Yoshihiro Koseki | 2024-08-13 |
| 11902418 | Registration device, search operation device, and data management device | Yutaka Kawai, Yoshihiro Koseki, Satoshi Yasuda | 2024-02-13 |
| 11831769 | Registration device, server device, searchable encryption system, and searchable encryption method | Yutaka Kawai, Yoshihiro Koseki | 2023-11-28 |
| 11451372 | Privacy-preserving analysis device, privacy-preserving analysis system, privacy-preserving analysis method, and computer readable medium | Yutaka Kawai, Yoshihiro Koseki | 2022-09-20 |
| 11233629 | Registration apparatus, search operation apparatus, data management apparatus | Yutaka Kawai, Yoshihiro Koseki | 2022-01-25 |
| 11163895 | Concealment device, data analysis device, and computer readable medium | Rina SHIMIZU, Mitsuhiro Hattori | 2021-11-02 |
| 11005645 | Encryption device, encryption method, computer readable medium, and storage device | Yutaka Kawai | 2021-05-11 |
| 10936757 | Registration destination determination device, searchable encryption system, destination determination method, and computer readable medium | Takashi Ito, Nori Matsuda, Mitsuhiro Hattori, Yoichi Shibata, Takumi Mori +1 more | 2021-03-02 |
| 10872158 | Secret search system, secret search method, and computer readable medium | Kenichiro HAYASAKA, Yutaka Kawai, Yoshihiro Koseki | 2020-12-22 |
| 10778431 | Encrypted text conversion device, computer readable medium, and encryption text conversion method | Yutaka Kawai, Yoshihiro Koseki | 2020-09-15 |
| 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, Takumi Mori | 2020-08-04 |
| 10673627 | Encryption device, search device, computer readable medium, encryption method, and search method | Yutaka Kawai | 2020-06-02 |
| 10673614 | Secret search system, management device, secret search method and computer readable medium | Yutaka Kawai | 2020-06-02 |
| 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 | Yutaka Kawai, Mitsuhiro Hattori, Takashi Ito, Nori Matsuda | 2019-07-23 |
| 10235539 | Server device, recording medium, and concealed search system | Takashi Ito, Nori Matsuda, Mitsuhiro Hattori, Takumi Mori | 2019-03-19 |
| 10216959 | Method and systems using privacy-preserving analytics for aggregate data | Ye Wang, Mitsuhiro Hattori, Rina SHIMIZU, Nori Matsuda | 2019-02-26 |
| 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 | Nori Matsuda, Kazuhiro Kusunoki, Akihiro Miura | 2018-08-28 |
| 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, Takumi Mori | 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, Takumi Mori, Takashi Ito, Nori Matsuda, Tsutomu Sakagami | 2016-03-01 |
| 9237137 | Key generation device, key generation program, secret search system, and key distribution method | Mitsuhiro Hattori, Takashi Ito, Nori Matsuda | 2016-01-12 |
| 9111106 | Data processing apparatus and data storage apparatus | Nori Matsuda, Takashi Ito, Mitsuhiro Hattori, Takumi Mori | 2015-08-18 |