Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9921460 | Storage case to accommodate a projector and to move the projector up and down | Hiroshi Yamaguchi, Takanobu Tanaka, Kunihiko ABE, Seigoh Nishiyama, Yuichi Takamiya | 2018-03-20 |
| 4726060 | Line circuit for driving a ringer and a service indicating lamp in a telephone set | Masaki Itoh, Junichi Koike | 1988-02-16 |