Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12142447 | Switch | Katsuki HOTTA, Shinya Watanabe, Katsutoshi Ikarashi | 2024-11-12 |
| 11908648 | Switch configured to form magnetic fields relative to contact points | Katsuki HOTTA, Shinya Watanabe, Katsutoshi Ikarashi | 2024-02-20 |
| 11348753 | Contactor having fixed and movable iron cores and a movable contact | Kazuki Takahashi, Katsuki HOTTA, Hiroyuki Nozaki | 2022-05-31 |
| 11205546 | Switch | Katsuki HOTTA, Kazuki Takahashi | 2021-12-21 |
| 10770420 | Semiconductor device | Shigeto Fujita | 2020-09-08 |
| 9905385 | Electromagnetic switch | Sachiyo Kato, Katsuki HOTTA, Tetsuya Yagi | 2018-02-27 |
| 9412540 | Switch | Tomohiko Takemoto | 2016-08-09 |
| 9196433 | Electromagnetic switch | Satoshi Makino, Tomohiko Takemoto, Naoki Ito | 2015-11-24 |
| 7554173 | Semiconductor device | Takeshi Ohi, Katsuhiko Fukuhara, Naoshi Yamada, Yoshitsugu Inaba, Takao Mitsuhashi | 2009-06-30 |
| 5638685 | Superconducting magnet and regenerative refrigerator for the magnet | Itsuo Kodera, Akinori Ohara, Toshiyuki Amano, Takeo Kawaguchi | 1997-06-17 |
| 5584184 | Superconducting magnet and regenerative refrigerator for the magnet | Itsuo Kodera, Akinori Ohara, Toshiyuki Amano, Takeo Kawaguchi | 1996-12-17 |
| 5583472 | Superconductive magnet | Kazuki Moritsu, Takahiro Matsumoto, Shuichi Nakagawa, Shuji Ando, Mitsuhiro Kishida +2 more | 1996-12-10 |
| 5471841 | Low-temperature regenerative type refrigerator | — | 1995-12-05 |
| 5447033 | Multi-stage cold accumulation type refrigerator and cooling device including the same | Masashi Nagao, Hideto Yoshimura | 1995-09-05 |
| 5417071 | Low-temperature regenerative type refrigerator | — | 1995-05-23 |
| 5398512 | Cold accumulation type refrigerating machine | Masashi Nagao, Hideto Yoshimura, Mitsuhiro Kishida, Kazuki Moritsu, Takahiro Matsumoto +2 more | 1995-03-21 |
| 5398511 | Regenerative refrigerator | Masashi Nagao, Hideto Yoshimura, Kazuki Moritsu, Takahiro Matsumoto, Shuuichi Nakagawa | 1995-03-21 |
| 5379600 | Superconducting magnet and method for assembling the same | Kazuki Moritsu, Takahiro Matsumoto, Mitsuo Horikawa, Shuichi Nakagawa, Hideto Yoshimura +1 more | 1995-01-10 |
| 5365743 | Multi-stage cold accumulation type refrigerator and cooling device including the same | Masashi Nagao, Hideto Yoshimura | 1994-11-22 |
| 5345770 | Low-temperature regenerative type refrigerator | — | 1994-09-13 |
| 5293749 | Multi-stage cold accumulation type refrigerator and cooling device including the same | Masashi Nagao, Hideto Yoshimura | 1994-03-15 |
| 5293752 | Multi-stage cold accumulation type refrigerator and cooling device including the same | Masashi Nagao, Hideto Yoshimura | 1994-03-15 |
| 5251456 | Multi-stage cold accumulation type refrigerator and cooling device including the same | Masashi Nagao, Hideto Yoshimura | 1993-10-12 |
| 5207981 | Heat reserving materials usuable at very low temperatures | Yasuhiro Hanaue, Etsuji Kimua, Takuo Takeshita, Kouichi Ishiyama, Masashi Nagao +1 more | 1993-05-04 |
| 5154063 | Multi-stage cold accumulation type refrigerator and cooling device including the same | Masashi Nagao, Hideto Yoshimura | 1992-10-13 |