Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7631185 | File editing system and shared file editing system with file content secrecy, file version management, and asynchronous editing | Toshinari Takahashi, Ichiro Tomoda, Masao Murota | 2009-12-08 |
| 7496759 | Multisignature method, apparatus, program, and system | Yuichi Komano, Kazuo Ohta, Shinichi Kawamura | 2009-02-24 |
| 7363335 | Modular arithmetic apparatus and method selecting a base in the residue number system | — | 2008-04-22 |
| 7349330 | Packet receiver with the influence of jitter and packet losses reduced before a buffer becomes idle due to data delays and packet receiving method using the same | Shinji Hayakawa, Satoshi Watanabe, Hiromi Aoyagi | 2008-03-25 |
| 7251485 | Wireless LAN terminal device, portable data terminal system, mobile phone, wireless LAN communication method, method for providing service, and method for transferring incoming call | Akira Ikeda, Yoshihito Shimazaki | 2007-07-31 |
| 7159115 | Method and apparatus for encrypting data | Koichi Fujisaki, Masahiko Motoyama, Hanae Ikeda, Yuuki Tomoeda | 2007-01-02 |
| 7010560 | Modular arithmetic apparatus and method selecting a base in the residue number system | — | 2006-03-07 |
| 6965946 | Method and apparatus for communication control of mobile computers in communication network systems using private IP addresses | Atsushi Inoue, Masahiro Ishiyama, Osamu Moriya, Toshio Okamoto | 2005-11-15 |
| 6891948 | Echo canceller | Masashi Takada | 2005-05-10 |
| 6839440 | Method for controlling voice level and level-controlling device | — | 2005-01-04 |
| 6760840 | File editing system and shared file editing system with file content secrecy, file version management, and asynchronous editing | Toshinari Takahashi, Ichiro Tomoda, Masao Murato | 2004-07-06 |
| 6687368 | Tone signal detecting method and tone signal detector | Hiromi Aoyagi | 2004-02-03 |
| 6678660 | Receiving buffer controlling method and voice packet decoder | Hiromi Aoyagi | 2004-01-13 |
| 6567384 | Portable radio unit for use in mobile telephone system and control method thereof | — | 2003-05-20 |
| 6546104 | Montgomery reduction apparatus | Shinichi Kawamura | 2003-04-08 |
| 6442616 | Method and apparatus for communication control of mobil computers in communication network systems using private IP addresses | Atsushi Inoue, Masahiro Ishiyama, Osamu Moriya, Toshio Okamoto | 2002-08-27 |
| 6415139 | Detection circuit of tone signal | — | 2002-07-02 |
| 6240514 | Packet processing device and mobile computer with reduced packet processing overhead | Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Toshio Okamoto | 2001-05-29 |
| 6185680 | Packet authentication and packet encryption/decryption scheme for security gateway | Atsushi Inque, Masahiro Ishiyama, Toshio Okamoto | 2001-02-06 |
| 6185526 | Speech transmission and reception system for digital communication | Toshio Kato | 2001-02-06 |
| 6170057 | Mobile computer and method of packet encryption and authentication in mobile computing based on security policy of visited network | Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Toshio Okamoto | 2001-01-02 |
| 6167513 | Mobile computing scheme using encryption and authentication processing based on mobile computer location and network operating policy | Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Toshio Okamoto | 2000-12-26 |
| 6163843 | Packet inspection device, mobile computer and packet transfer method in mobile computing with improved mobile computer authenticity check scheme | Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Toshio Okamoto | 2000-12-19 |
| 6092191 | Packet authentication and packet encryption/decryption scheme for security gateway | Atsushi Inoue, Masahiro Ishiyama, Toshio Okamoto | 2000-07-18 |
| 6088453 | Scheme for computing Montgomery division and Montgomery inverse realizing fast implementation | — | 2000-07-11 |