Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628755 | Transaction support system and information terminal unit connecting thereto | Takashi Shimada, Kiyofumi Akita, Shinichi Tanaka, Keizo Nishi, Muneichi Tsujibayashi | 2003-09-30 |
| 6396919 | Telephone transaction support system and telephone call connection control system | Takashi Shimada, Kiyofumi Akita | 2002-05-28 |
| 6169787 | Telephone transaction support system | Takashi Shimada, Kiyofumi Akita, Hisashi Fujita | 2001-01-02 |
| 6104995 | Speaker identification system for authorizing a decision on an electronic document | Takashi Shimada, Masanori Mochizuki, Masahiro Yuzurio, Kiyofumi Akita, Akira Suzuki | 2000-08-15 |