Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9767981 | Fluorescent display tube with pulse voltage driving to the cathodes at different times | Ping Ning Chiu, Yung-Sheng Huang, Katsushi Tokura | 2017-09-19 |
| 8648521 | Fluorescent display device having an outer light source and light shielding film | Yoshiaki Washio, Junichi Ogiwara | 2014-02-11 |
| 6617616 | Chip-in-glass fluorescent display device | — | 2003-09-09 |
| 5811920 | Fluorescent display tube | Hiroyuki Wada, Hiroshi Yamaguchi | 1998-09-22 |
| 4746783 | Welding current control circuit for spot welder | Hideaki Toya | 1988-05-24 |
| 4281209 | Gas-insulated electrical apparatus with dielectric particle trapping barriers | Akiyoshi Yoshioka, Ioichiro Nakanishi | 1981-07-28 |
| 4234902 | Enclosed lightning arrester | Yukio Fujiwara, Shigeru Yamaji, Tohei Nitta | 1980-11-18 |
| 4219862 | Lightning arrester device | Tohei Nitta, Yukio Fuziwara | 1980-08-26 |
| 4204239 | Abnormal voltage protection device | Mitsumasa Imataki, Mikio Mochizuki | 1980-05-20 |