Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5151932 | Method and system for selectively communicating with a telephone or a non-telephone terminal through a public telephone network | Norio Ozawa, Yasuo Haruta, Yoshinobu Mabuchi | 1992-09-29 |
| 4995109 | Communication with a non-telephone terminal via a telephone switching network using two consecutive calls | Norio Ozawa, Yasurou Fukawa | 1991-02-19 |