Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9590804 | Identification information generation device and identification information generation method | — | 2017-03-07 |
| 8966264 | Signature generation apparatus, signature method, non-transitory computer readable medium storing signature generation program | — | 2015-02-24 |
| 8199910 | Signature generation apparatus and signature verification apparatus | Toshinori Araki | 2012-06-12 |
| 8055953 | Information processing apparatus, information processing system, information processing method and computer program | Masafumi Kusakawa, Muneki Shimada, Shiho Moriai, Dai Sasaki | 2011-11-08 |
| 7460666 | Combinational circuit, encryption circuit, method for constructing the same and program | Akashi Satoh, Gang Zhang | 2008-12-02 |
| 7269529 | Data processing apparatus, program, and method for testing a secured circuit and maintaining confidentiality of the circuit | Masanobu Okabe, Masafumi Kusakawa, Kyoji Shibutani, Asami Yoshida, Muneki Shimada +1 more | 2007-09-11 |
| 7185258 | Signal processing method, signal processing system, program for signal processing, and computer-readable storage medium on which this program is recorded | Yasunao Katayama, Toshiyuki Yamane | 2007-02-27 |
| 7010738 | Combinational circuit, and encoder, decoder and semiconductor device using this combinational circuit | Yasunao Katayama, Toshiyuki Yamane | 2006-03-07 |
| 6928601 | Decoding circuit, and decoder, decoding method and semiconductor device that use the decoding circuit | Yasunao Katayama, Toshiyuki Yamane | 2005-08-09 |
| 6912558 | MULTIPLICATION MODULE, MULTIPLICATIVE INVERSE ARITHMETIC CIRCUIT, MULTIPLICATIVE INVERSE ARITHMETIC CONTROL METHOD, APPARATUS EMPLOYING MULTIPLICATIVE INVERSE ARITHMETIC CIRCUIT, AND CRYPTOGRAPHIC APPARATUS AND ERROR CORRECTION DECODER THEREFOR | Yasunao Katayama | 2005-06-28 |
| 6721919 | Shared encoder used in error correction having multiple encoders of different maximum error correction capabilities | Yasunao Katayama | 2004-04-13 |
| 6487691 | Reed-solomon decoder | Yasunao Katayama | 2002-11-26 |