Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11014053 | Cellulose acetate-based asymmetric hollow fiber membrane | Kimihiro Mabuchi, Yoshinori Takii | 2021-05-25 |
| 11007490 | Cellulose acetate-based hollow fiber membrane | Kimihiro Mabuchi, Yoshinori Takii | 2021-05-18 |
| 8093885 | Residual magnetic flux determining apparatus | Hiroyuki Tsutada, Takashi Hirai, Kenji Kamei | 2012-01-10 |
| 8071905 | Gas circuit breaker | Yuji Yoshitomo, Daisuke Yoshida | 2011-12-06 |
| 8030590 | Gas-circuit breaker | Daisuke Yoshida, Yuji Yoshitomo | 2011-10-04 |
| 7902696 | Controlled switching device | Hiroyuki Tsutada, Takashi Hirai, Kenji Kamei | 2011-03-08 |
| 7868126 | Process for producing polyester, polyester produced using said process, and polyester molded product | Katsuhiko Kageyama, Tooru Kitagawa, Kenichi Funaki, Masaki Fuchikami, Kazuo Katayose +5 more | 2011-01-11 |
| 7763821 | Puffer-type gas blast circuit breaker | Yuji Yoshitomo, Daisuke Yoshida | 2010-07-27 |
| 7323652 | Gas insulated switchgear | Daisuke Yoshida, Yuji Yoshitomo | 2008-01-29 |
| 7259947 | Phase control switching device | Sadayuki Kinoshita, Hiroki Ito, Kenji Kamei | 2007-08-21 |
| 7095139 | Transformer inrush current elimination system | Hiroyuki Tsutada, Takashi Hirai, Hiroki Ito | 2006-08-22 |
| 6493203 | Phase control switch apparatus | Hiroki Ito, Masaki Hiratsuka | 2002-12-10 |
| 6392390 | Synchronous switching apparatus for use with a multiple phase power system | Hiroki Ito, Mikio Hidaka | 2002-05-21 |
| 6172863 | Phase control switching system | Hiroki Ito, Mikio Hidaka | 2001-01-09 |
| 5514844 | Switch | Suenobu Hamano, Hiroyuki Sasao, Katsuhiko Horinouchi, Mikio Hidaka, Yoshiki Hirano | 1996-05-07 |