Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D898675 | Non-contact type data carrier | Isao Soma, Kazuyoshi Takemura | 2020-10-13 |
| D761736 | Non-contact type data carrier | Isao Soma, Kazuyoshi Takemura | 2016-07-19 |
| 8972300 | Content distribution system | Masao Nonaka, Toshihisa Nakano, Yuichi Futa, Motoji Ohmori, Kazukuni Kobara +1 more | 2015-03-03 |
| 8601590 | Content distribution system | Toshihisa Nakano, Masao Nonaka, Yuichi Futa, Motoji Ohmori, Ryo Nojima +1 more | 2013-12-03 |
| 8180059 | Management apparatus, terminal apparatus, and copyright protection system | Toshihisa Nakano, Nuttapong Attrapadung, Kazukuni Kobara | 2012-05-15 |
| 7936883 | Quantum key distribution protocol | Manabu Hagiwara, Makoto Eguchi | 2011-05-03 |
| 7925893 | Copyright protection system, modular exponentiation operation apparatus, and modular exponentiation operation method | Toshihisa Nakano, Attrapadung Nuttapong, Kazukuni Kobara | 2011-04-12 |
| 7895436 | Authentication system and remotely-distributed storage system | Kazukuni Kobara, Seonghan Shin | 2011-02-22 |
| 7617536 | Unauthorized device detection device, unauthorized device detection system, unauthorized device detection method, program, recording medium, and device information update method | Masao Nonaka, Toshihisa Nakano, Yuichi Futa, Motoji Ohmori, Takeshi Gomi +1 more | 2009-11-10 |
| 6910130 | System for and method of unconditionally secure digital signature | Goichiro Hanaoka, Junji Shikata, Yuliang Zheng | 2005-06-21 |
| 6771486 | Storage cell for surface mounting | Koichi Morikawa, Masashige Ashizaki, Masayuki Shinjou | 2004-08-03 |
| 6635328 | Integral skin foam molded article | Tetsuo Shimabara, Kiyotaka Yanagisawa, Shigenori Kawanoue | 2003-10-21 |
| 6194666 | Push pull type control cable | Takaaki Hayashida | 2001-02-27 |
| 6151983 | Conduit for a control cable | Yoshio Misaki, Masahiro YASUI | 2000-11-28 |
| 6001761 | Ceramics sheet and production method for same | Kazuo Hata, Norikazu Aikawa, Tetuya Yasaka | 1999-12-14 |
| 5533413 | Equipment diagnosis system | Yasunori Kobayashi, Shin Tanabe, Tatsuo Fukuda, Masazumi Miyazawa, Moriyuki Wani | 1996-07-09 |
| 5512977 | Copying machine with encryption function | — | 1996-04-30 |
| 5395812 | Silver catalyst for production of ethylene oxide and method for production of the catalyst | Shinichi Nagase, Hirohiko Tanabe | 1995-03-07 |
| 5349171 | Bar code reader | Seiichiro Tamai, Keiichi Kobayashi, Takahiro Yamao | 1994-09-20 |
| 5325373 | Apparatus for encoding and decoding reed-solomon code | Keiichi Iwamura, Yasunori Dohi | 1994-06-28 |
| 5127359 | Holding apparatus for work to be coated | Shoji Kannari | 1992-07-07 |
| 5093839 | Frequency diversity receiving system based on cancellation of C/A code in GPS | Ryuji Kohno, Hefeng Wang | 1992-03-03 |
| 5016276 | Common cryptokey generation system and communication system using common cryptokeys | Tutomu Matumoto | 1991-05-14 |
| 4839649 | Signal processing system | Minoru Sasaki | 1989-06-13 |
| 4827489 | Decoding device for digital signals | Nobukazu Doi, Morishi Izumita, Seiichi Mita, Akira Saito, Hiroto Yamauchi +2 more | 1989-05-02 |