Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10754979 | Information management terminal device | — | 2020-08-25 |
| 6377818 | Communication terminal apparatus | Akira Irube, Osamu Yamagishi | 2002-04-23 |
| 5594494 | Moving picture coding apparatus | Osamu Okada, Shoichiro Yamasaki | 1997-01-14 |
| 5555310 | Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice input/output apparatus to which this echo canceler is applied | Osamu Okada | 1996-09-10 |
| 5493573 | Broad band switching network | Hiroshi Kobayashi, Kunihiko Sekiya, Yoshihiro Hidaka, Kazuo Aida, Michiaki Okano +4 more | 1996-02-20 |
| 4815132 | Stereophonic voice signal transmission system | — | 1989-03-21 |