Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7944138 | Fluorescent display tube | Takehiro Iizawa, Katsushi Tokura, Yukihiko Shimizu, Klaus Heynen | 2011-05-17 |
| 5463276 | Double-faced vacuum fluorescent display | Hiroaki Kawasaki, Hiroshi Sakurada, Tadashi Iwasa, Hiroshi Yamaguchi | 1995-10-31 |