Issued Patents All Time
Showing 51–75 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8376075 | Saddle-ride electric vehicle | Taiki Sasage | 2013-02-19 |
| 8369516 | Encryption apparatus having common key encryption function and embedded apparatus | Kouichi Itoh, Souichi Okada | 2013-02-05 |
| 8352529 | Modular multiplication calculation apparatus used for montgomery method | Kazuyoshi Furukawa | 2013-01-08 |
| 8335922 | Recording medium, digital information verification apparatus, and digital information verification method | Takashi Yoshioka, Tetsuya Izu | 2012-12-18 |
| 8327156 | Embedded device having countermeasure function against fault attack | Kazuyoshi Furukawa, Kouichi Itoh | 2012-12-04 |
| 8312266 | Methods and apparatus for verifying electronic mail | Takashi Yoshioka, Tetsuya Izu | 2012-11-13 |
| 8223968 | Image data verification program recorded on a recording medium, image data verification method, and image data verification system | Takashi Yoshioka | 2012-07-17 |
| 8218762 | Encrypting apparatus for common key cipher | Kouichi Itoh, Souichi Okada | 2012-07-10 |
| 8205077 | Management apparatus | Bintatsu Noda, Takayuki Hasebe, Takeaki Terada, Takashi Yoshioka | 2012-06-19 |
| 8091015 | Digital document management system, digital document management method, and digital document management program | Takashi Yoshioka | 2012-01-03 |
| 8078661 | Multiple-word multiplication-accumulation circuit and montgomery modular multiplication-accumulation circuit | Kenji Mukaida, Naoya Torii, Shoichi Masui | 2011-12-13 |
| 8035488 | Information access system and active-type contactless information storage device | Shinichi Shiotsu, Isamu Yamada, Satoshi Inano, Kouichi Yasaki, Akira Itasaki +2 more | 2011-10-11 |
| 8037312 | Method and apparatus for digital signature authentication, and computer product | Tetsuya Izu, Takashi Yoshioka | 2011-10-11 |
| 8032921 | Computer-readable recording medium storing access rights management program, access rights management apparatus, and access rights management method | Souichi Okada, Takashi Yoshioka, Bintatsu Noda | 2011-10-04 |
| 8003903 | Side stand switch | Yoshihiro Nakazawa, Takashi Sumada, Hiroyuki Nakajima, Shujiro Inui | 2011-08-23 |
| 7971673 | Saddle-ride type electric vehicle | Taiki Sasage | 2011-07-05 |
| 7966644 | Method, apparatus, and computer program for managing access to documents | Bintatsu Noda, Souichi Okada, Takashi Yoshioka | 2011-06-21 |
| 7900050 | Digital document management system, digital document management method, and digital document management program | Tetsuya Izu, Takashi Yoshioka | 2011-03-01 |
| 7792893 | Device and method for calculating conversion parameter of montgomery modular multiplication and program therefor | Kouichi Itoh, Naoya Torii | 2010-09-07 |
| 7752668 | Network virus activity detecting system, method, and program, and storage medium storing said program | Kazumasa Omote, Satoru Torii | 2010-07-06 |
| 7639808 | Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program | Tetsuya Izu, Kouichi Itoh, Naoya Torii | 2009-12-29 |
| 7536011 | Tamper-proof elliptic encryption with private key | Tetsuya Izu, Kouichi Itoh, Naoya Torii | 2009-05-19 |
| 7497296 | All-wheel-drive motorcycle | — | 2009-03-03 |
| 7403965 | Encryption/decryption system for calculating effective lower bits of a parameter for Montgomery modular multiplication | Kenji Mukaida, Naoya Torii, Shoichi Masui | 2008-07-22 |
| 7386130 | Encryption secured against DPA | Koichi Ito, Naoya Torii | 2008-06-10 |