Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D348884 | Combined speaker box and screen for a television projector | Osamu Sugihara, Tadashi Sumino | 1994-07-19 |
| 5325228 | Optical shutter device | Ken Matsubara, Kouichi Shingaki, Tsukasa Yagi, Hirohisa Kitano, Itaru Saito +1 more | 1994-06-28 |
| 5293203 | Image forming apparatus having a movable sheet receiving tray | Tsukasa Yagi, Tomohiko Masuda, Hirchisa Kitano, Itaru Saitoh, Ken Matsubara +1 more | 1994-03-08 |
| D343396 | Combined speaker box and screen | Mamoru Yamashita, Hideto Ashida, Koji Mochizuki, Osamu Sugihara, Tadashi Sumino | 1994-01-18 |