Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243293 | System utilizing optical current sensors for detecting fault location in substation | Takashi Isozaki, Katsuro Shinoda, Toshiyuki Kawaguchi, Hiroyuki Katsukawa, Hiroyuki Abe +1 more | 1993-09-07 |
| 5136680 | Optical fiber built-in type composite insulator and method for producing the same | Shoji Seike, Koichi Mori, Mitsuji Ikeda, Masayuki Nozaki, Hisakazu Okajima +2 more | 1992-08-04 |
| 5069525 | Optical fiber built-in type composite insulator and method of producing the same | Shoji Seike, Koichi Mori, Mitsuji Ikeda, Masayuki Nozaki, Hisakazu Okajima +2 more | 1991-12-03 |
| 4810836 | Optical fiber-containing insulators | Katsuro Shinoda, Toshiyuki Kawaguchi, Noriyasu Oguri, Hiroshi Harada, Isao Nakajima | 1989-03-07 |
| 4648131 | Work helmet having transmitter-receiver for light signal | Toshiyuki Kawaguchi, Hiroyuki Katsukawa, Naoki Tanaka | 1987-03-03 |