Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7548951 | Minute file creation method, minute file management method, conference server, and network conference system | Hironori Nagayama, Keiji Suginohara | 2009-06-16 |
| 7543021 | Network conference system | Hironori Nagayama, Soichi Tanigaki, Izumi Ota, Keiji Suginohara | 2009-06-02 |
| 7426192 | Network conference system, conference server, record server, and conference terminal | Hironori Nagayama, Keiji Suginohara | 2008-09-16 |
| 5848422 | Data management device in a karaoke communications system | Masuhiro Sato, Kazuhiro Miyamoto, Yoshiyuki Akiba, Makoto Takanashi, Sampei Asai | 1998-12-08 |
| 5587547 | Musical sound producing device with pitch change circuit for changing only pitch variable data of pitch variable/invariable data | Toshiki Nakai, Kazuhiro Miyamoto, Yoshiyuki Akiba, Masuhiro Sato | 1996-12-24 |
| 5574243 | Melody controlling apparatus for music accompaniment playing system the music accompaniment playing system and melody controlling method for controlling and changing the tonality of the melody using the MIDI standard | Toshiki Nakai, Kazuhiro Miyamoto, Yoshiyuki Akiba, Masuhiro Sato | 1996-11-12 |
| 5506370 | Display controlling apparatus for music accompaniment playing system, and the music accompaniment playing system | Toshiki Nakai, Kazuhiro Miyamoto, Yoshiyuki Akiba, Masuhiro Sato | 1996-04-09 |
| 5494443 | Karaoke system and method of managing playing time of karaoke songs | Toshiki Nakai, Kazuhiro Miyamoto, Yoshiyuki Akiba, Masuhiro Sato | 1996-02-27 |
| 5484291 | Apparatus and method of playing karaoke accompaniment | Toshiki Nakai, Kazuhiro Miyamoto, Yoshiyuki Akiba, Masuhiro Sato | 1996-01-16 |