Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12391955 | Plant having enhanced resistance against colorado potato beetle and method for producing same, and method for evaluating resistance against colorado potato beetle in plant | Naoyuki Umemoto, Masaharu Mizutani, Kenji Asano, Haruyasu Hamada, Yozo Nagira +2 more | 2025-08-19 |
| 8021964 | Method of producing segmented chips | Kazuta Saito | 2011-09-20 |
| 7961871 | Encryption process, encryption device, and computer-readable medium storing encryption program | Shigeyuki Okubo | 2011-06-14 |
| 7555651 | Time management apparatus and time management method | Masamichi Ishibashi | 2009-06-30 |
| 7512801 | Authentication system, authentication method, signing apparatus, signing method, certifying apparatus, certifying method, and a computer-readable recording medium with a program making a computer execute the method recording therein | Seigo Kotani, Takayuki Hasebe, Takaoki Sasaki | 2009-03-31 |
| RE40547 | Software reproduction apparatus | Makoto Yoshioka | 2008-10-21 |
| 7421078 | Valid medium management system | — | 2008-09-02 |
| RE39802 | Storage medium for preventing an irregular use by a third party | Takayuki Hasebe, Makoto Yoshioka | 2007-08-28 |
| 7257393 | Method and apparatus for time calibration | Takeaki Kawashima | 2007-08-14 |
| 7154824 | Storage apparatus | Nobuhide Aoyama, Yasuaki Morimoto, Tetsuo Hosokawa | 2006-12-26 |
| 7013392 | File processing unit | Takaoki Sasaki, Takeshi Hatano, Seigo Kotani, Takayuki Hasebe | 2006-03-14 |
| 7010127 | Cryptographic communication method, file access system and recording medium | Seigo Kotani, Takaoki Sasaki, Yusuke Yamanaka, Takayuki Hasebe | 2006-03-07 |
| 7000114 | Apparatus to create and/or verify digital signatures having a secure time element and an identifier of the apparatus | Takayuki Hasebe, Seigo Kotani, Takaoki Sasaki | 2006-02-14 |
| 6944734 | Storage apparatus and access control method | Ichiro Anzai | 2005-09-13 |
| 6700989 | Device for generating, detecting, recording, and reproducing a watermarked moving image having a copy preventing capability and storage medium for storing program or the moving image | Hiroyasu Itoh, Toru Nakagawa | 2004-03-02 |
| 6636970 | Software encoding using a combination of two types of encoding and encoding type identification information | Makoto Yoshioka | 2003-10-21 |
| 6460137 | Encryption processing system | Akio Munakata, Yuzuru Koga, Masayuki Ishizaki, Makoto Yoshioka | 2002-10-01 |
| 6144745 | Method of and apparatus for retaining and verifying of data on recording medium | Seiichi Urita, Gengo Tazaki | 2000-11-07 |
| 6067640 | System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software | Naoya Torii | 2000-05-23 |
| 5832210 | Device and method for controlling communication | Yoshikazu Tsuji | 1998-11-03 |
| 5822771 | System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software | Naoya Torii | 1998-10-13 |
| 5812661 | Software reproduction apparatus | Makoto Yoshioka | 1998-09-22 |
| 5812663 | Data reproducing device | Makoto Yoshioka | 1998-09-22 |
| 5805699 | Software copying system | Makoto Yoshioka, Yoshiaki Uchida | 1998-09-08 |
| 5796824 | Storage medium for preventing an irregular use by a third party | Takayuki Hasebe, Makoto Yoshioka | 1998-08-18 |