Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9571470 | Communication system, management server, server, concentrator, and encryption setting method | Nobuyuki Muranaka, Yuji Ogata | 2017-02-14 |
| 7734919 | Telephone having authentication function and telephone system | Jun Maeoka, Toru Nagura, Yosuke Saso, Hideki Nakamura, Shinichiro Kawasaki +1 more | 2010-06-08 |
| 6618368 | Data gateway and method for relaying data | Keiko Tanigawa, Koji Tsukada, Toru Hoshi, Hiroshi Kanai | 2003-09-09 |
| 5995096 | Conference display control method and apparatus for an electronic conference for displaying either shared or local data and transferring local data | Chiho Kitahara, Takeshi Ishizaki, Shigeaki Kinoshita, Masami Kameda, Tomomi Suzuki +2 more | 1999-11-30 |
| 5872924 | Collaborative work support system | Yoshiyuki Nakayama, Takeshi Ishizaki, Yoshinobu Tanigawa, Minoru Koizumi, Masami Kameda | 1999-02-16 |
| 5864670 | Communication network system in which an unregistered terminal being used by a party can be located for starting a session | Kenjiro Mori, Masami Kameda, Yoshiyuki Nakayama, Takeshi Ishizaki | 1999-01-26 |
| 5841977 | Computer-based conferencing system with local operation function | Takeshi Ishizaki, Yoshiyuki Nakayama, Yoshinobu Tanigawa, Minoru Koizumi, Masami Kameda | 1998-11-24 |
| 5745711 | Display control method and apparatus for an electronic conference | Chiho Kitahara, Takeshi Ishizaki, Shigeaki Kinoshita, Masami Kameda, Tomomi Suzuki +2 more | 1998-04-28 |
| 5585365 | Antiviral polysaccharide | Kyoko Hayashi, Ichiro Kojima | 1996-12-17 |