Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10074971 | Excitation inrush current suppressing apparatus and excitation inrush current suppressing method | Kei Kawasaki, Shiro Maruyama, Minoru Saito, Noriyuki Nagayama | 2018-09-11 |
| 10032582 | Gas circuit breaker | Toshiyuki Uchii, Takeshi Shinkai, Takanori IIJIMA, Tadashi Mori, Norimitsu Kato +1 more | 2018-07-24 |
| 9704664 | Magnetizing inrush current suppression device | Shiro Maruyama, Minoru Saito, Hiroyuki Maehara, Koji Suzuki | 2017-07-11 |
| 9659727 | Switch | Kazuhisa Kanaya, Yoshiaki Ohda, Masayuki Sato, Yuki Matsui | 2017-05-23 |
| 9583934 | Excitation inrush current suppression device | Kei Kawasaki, Shiro Maruyama, Minoru Saito, Noriyuki Nagayama | 2017-02-28 |
| 9515479 | Inrush current suppression apparatus | Shiro Maruyama, Hiroyuki Maehara, Yoshimasa Sato | 2016-12-06 |
| 9508514 | Switchgear operating mechanism | Yoshiaki Ohda, Kazuhisa Kanaya, Masayuki Ando | 2016-11-29 |
| 9502189 | Excitation inrush-current suppression system | Shiro Maruyama, Minoru Saito, Tomohiko Mitani | 2016-11-22 |
| 9490627 | Magnetizing inrush current suppressing device | Shiro Maruyama, Minoru Saito, Hiroyuki Maehara, Koji Suzuki | 2016-11-08 |
| 9425615 | Inrush current suppression apparatus | Minoru Saito, Shiro Maruyama, Hiroyuki Maehara, Yoshimasa Sato | 2016-08-23 |
| 9385525 | Magnetizing inrush current suppression device | Minoru Saito, Shiro Maruyama, Hiroyuki Maehara, Koji Suzuki | 2016-07-05 |
| 9291686 | Method of estimating the residual magnetic flux of transformer and residual magnetic flux estimation device | Keisuke Udagawa, Minoru Saitoh, Yoshimasa Sato, Hiroyuki Maehara | 2016-03-22 |
| 9197057 | Magnetizing inrush current suppression apparatus | Keisuke Udagawa, Shiro Maruyama, Minoru Saitoh, Noriyuki Nagayama | 2015-11-24 |
| 8749100 | Overvoltage suppressing device | Minoru Saito, Hiroyuki Maehara, Yoshimasa Sato | 2014-06-10 |
| 8680713 | Over-voltage suppression apparatus | Minoru Saito, Hiroshi Kusuyama, Hiroyuki Maehara, Yoshimasa Sato | 2014-03-25 |
| 8564159 | Transformer inrush current suppression apparatus | Keisuke Udagawa, Shiro Maruyama, Minoru Saito, Noriyuki Nagayama | 2013-10-22 |
| 8217536 | Magnetizing inrush current suppression device for transformer and control method of same | Minoru Saito, Koichi Futagami, Hiroshi Kusuyama, Yoshimasa Sato | 2012-07-10 |