Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243293 | System utilizing optical current sensors for detecting fault location in substation | Takashi Isozaki, Toshiyuki Kawaguchi, Hiroyuki Katsukawa, Kazumi Nakanishi, Hiroyuki Abe +1 more | 1993-09-07 |
| 5202812 | Apparatus for detecting faults on power transmission lines | Toshiyuki Kawaguchi, Hiroyuki Katsukawa, Genzo Kimura, Naoki Tanaka, Hiroyuki Abe +1 more | 1993-04-13 |
| 4833726 | Helmet with two-way radio communication faculty | Toshiyuki Kawaguchi, Hiroyuki Katsukawa, Naoki Tanaka | 1989-05-23 |
| 4810836 | Optical fiber-containing insulators | Toshiyuki Kawaguchi, Kazumi Nakanishi, Noriyasu Oguri, Hiroshi Harada, Isao Nakajima | 1989-03-07 |