Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5974044 | System and method for controlling voice and data communications | Koji Sasada, Akitoshi Miyazaki, Kazuo Sugiyama, Akihiro Maebara, Ichiro Okajima +1 more | 1999-10-26 |
| 5963550 | Packet transfer scheme and mobile communication system | Shoichi Hirata, Masumi Sotoyama, Kazuo Sugiyama, Atsushi Shimokawa, Koji Yamamoto +1 more | 1999-10-05 |