Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8139568 | Communication method, communication system, relaying device and communication device | Kinya Yamazaki, Masahiro Matsuda | 2012-03-20 |
| 7669767 | Tag access control system, tag access control method and tag access control program | Hiroyasu Sugano, Kazuki Matsui, Hideto Kihara | 2010-03-02 |
| 7596132 | Communication method, communication system, relaying device and communication device | Kinya Yamazaki, Masahiro Matsuda | 2009-09-29 |
| 7575176 | Tag access control system, tag access control method and recording medium storing tag access control program | Hiroyasu Sugano, Kazuki Matsui, Hideto Kihara | 2009-08-18 |
| 7356481 | Delivery management method and device, and delivery information service method | Madoka Mitsuoka, Youji Kohda, Masashi Uyama, Yuji Kijima | 2008-04-08 |
| 7139827 | Communication means notification method and notification system | Hiroyasu Sugano, Naohisa Kawaguchi, Koji Otani, Akinori Iwakawa | 2006-11-21 |
| 6735615 | Status change notification system for use in chat system channel | Kenichi Sasaki, Tatsuro Matsumoto, Hitoshi Yamauchi, Hidenobu Ito, Kazuki Matsui | 2004-05-11 |
| 6678720 | Chat system and method for delivering additional information via another independent network | Tatsuro Matsumoto | 2004-01-13 |
| 6564244 | System for chat network search notifying user of changed-status chat network meeting user-tailored input predetermined parameters relating to search preferences | Hidenobu Ito, Kazuki Matsui, Tatsuro Matsumoto, Hitoshi Yamauchi, Kenichi Sasaki | 2003-05-13 |
| 5917908 | File protection system, software utilization system using the file protection system and storage medium used in the software utilization system | Masahiko Takenaka, Takayuki Hasebe, Naoya Torii | 1999-06-29 |
| 5838791 | Encoder and decoder | Naoya Torii, Masahiko Takenaka, Takayuki Hasebe, Masahiro Matsuda | 1998-11-17 |
| 5832083 | Method and device for utilizing data content | Naoya Torii, Takayuki Hasebe, Masahiko Takenaka, Masahiro Matsuda | 1998-11-03 |
| 5761651 | Software charging system and software data utilization permitting device | Takayuki Hasebe, Naoya Torii, Masahiko Takenaka, Masahiro Matsuda | 1998-06-02 |
| 5623548 | Transformation pattern generating device and encryption function device | Ryota Akiyama, Naoya Torii, Kenichi Utsumi | 1997-04-22 |
| 5621794 | Moving-picture encipherment method and system, and enciphered moving-picture decipherment method and system | Masahiro Matsuda, Naoya Torii, Takayuki Hasebe, Masahiko Takenaka | 1997-04-15 |