Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8432244 | Power distribution transformer and tank therefor | Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru +1 more | 2013-04-30 |
| 8198973 | Transformer | Kazuyuki Fukui, Katsutoshi Inagaki | 2012-06-12 |
| 8143985 | Power distribution transformer and tank therefor | Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru +1 more | 2012-03-27 |
| 7843298 | Power distribution transformer and tank therefor | Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru +1 more | 2010-11-30 |
| 7471183 | Transformer | Kouji Yamashita, Youji Matsuda, Kazuo Nishiyama, Kazuyuki Fukui, Hidemasa Yamaguchi +3 more | 2008-12-30 |
| 7292127 | Transformer | Kouji Yamashita, Youji Matsuda, Kazuo Nishiyama, Kazuyuki Fukui, Hidemasu Yamaguchi +3 more | 2007-11-06 |
| 4562322 | SF.sub.6 Gas arc extinguishing electric apparatus and process for producing the same | Motoo Yamaguchi, Isamu Sone, Kunio Hirasawa, Yoshio Yoshioka, Akio Nishikawa +2 more | 1985-12-31 |
| 4549132 | Method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current | Tokio Yamagiwa, Toshio Ishikawa, Jun Ozawa, Kaoru Endo | 1985-10-22 |