Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730518 | Backlighting device | Keiji Kashima, Naoki Yoshida, Osamu Shoji, Eiichi Yanagi | 1998-03-24 |
| 5442523 | Backlighting device | Keiji Kashima, Naoki Yoshida, Osamu Shoji, Eiichi Yanagi | 1995-08-15 |
| 5376767 | Plasma torch and an apparatus for producing fused silica using plasma arc electrodes | Charles P. Heanley, John K. Williams, Takao Matsuoka | 1994-12-27 |
| 5256855 | Silica production | Charles P. Heanley, John K. Williams, Takao Matsuoka | 1993-10-26 |
| 5093765 | Back lighting device for a panel | Keiji Kashima, Naoki Yoshida, Osamu Shoji, Eiichi Yanagi | 1992-03-03 |
| 4937709 | Back lighting device for a liquid crystal panel | Eiichi Yanagi, Osamu Shoji, Naoki Yoshida | 1990-06-26 |
| 4924357 | Light source unit for a business machine | Hiroshi Yamashita, Kanenaga Fujii, Masafumi Shigeoka, Hiroshi Sudo | 1990-05-08 |