Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8073133 | Echo canceler and echo canceling method | Takashi Ishiguro, Koichi Kihara, Yuzuru Masuya | 2011-12-06 |
| 7715374 | Redundancy gateway system | Yuzuru Masuya, Koichi Kihara, Koichi Yamazaki, Takashi Ishiguro, Yasuhiro Tazoi +1 more | 2010-05-11 |
| 5807588 | Extrusion molding apparatus and an apparatus for controlling the same | Nobuhiko Todaka, Satoshi Yamaguchi, Yoichi Hirai, Kazunori Ueda, Kenichi Mitsuta | 1998-09-15 |