Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12221591 | Refrigeration cycle apparatus | Kenji Kojima, Kengo HIRATSUKA, Manami NAKAMURA | 2025-02-11 |
| 11015987 | Temperature estimation method | Kota Mizuno, Ryuichi Nishiura, Tsuyoshi Amimoto, Ryota KURIYAMA | 2021-05-25 |
| 10359411 | Diagnosis method for internal fault of oil-immersed electric apparatus | Ryota KURIYAMA, Fukutaro Kato, Shiki Hayamizu, Kota Mizuno | 2019-07-23 |
| 10302618 | Method for diagnosing oil-filled electrical apparatus | Ryota KURIYAMA, Fukutaro Kato, Ryuichi Nishiura, Kota Mizuno | 2019-05-28 |
| 9915465 | Heat pump compressor including liquid crystal polymer insulating material | Noriaki Matsunaga, Shinobu Ogasawara, Takeharu Kageyama, Kota Mizuno, Yutaka Hirakawa | 2018-03-13 |
| 9396835 | Method for suppressing copper sulfide generation in oil-filled electrical equipment | Fukutaro Kato, Eiichi Nagao, Tsuyoshi Amimoto, Kota Mizuno | 2016-07-19 |
| 9228992 | Electric insulating oil inspection method, electric insulating oil treatment method, and oil-filled electric device maintenance method | Fukutaro Kato, Eiichi Nagao, Tsuyoshi Amimoto, Kota Mizuno | 2016-01-05 |
| 8912274 | Water-dispersible varnish | Shigeyuki Yamamoto, Yoshinori Shirafuji, Toshifumi Kanri, Nobuyuki Kamegawa, Yukio Hidaka | 2014-12-16 |
| 8854068 | Diagnostic method for oil-filled electrical device, diagnostic device for implementing the diagnostic method, and oil-filled electrical device provided with the diagnostic device | Eiichi Nagao, Kentaro Taninouchi, Noboru Hosokawa, Tsuyoshi Amimoto, Kozo Tachibana +2 more | 2014-10-07 |
| 8796033 | Method of determining minute amounts of additives in polymers | Jiro Naka, Hiroshi Kurokawa, Junji Kobayashi, Noriko Hirano, Eiji Hara | 2014-08-05 |
| 8728565 | Method for inhibiting generation of copper sulfide | Fukutaro Kato, Eiichi Nagao, Tsuyoshi Amimoto, Yoshio Kimura, Noboru Hosokawa +1 more | 2014-05-20 |
| 8423301 | Lifetime assessment apparatus and method for oil-filled electrical device, and degradation suppression apparatus and method for oil-filled electrical device | Fukutaro Kato, Eiichi Nagao, Tsuyoshi Amimoto, Kota Mizuno | 2013-04-16 |
| 8305179 | Oil immersed electrical apparatus | Eiichi Nagao, Kentaro Taninouchi, Noboru Hosokawa, Tsuyoshi Amimoto, Kozo Tachibana +2 more | 2012-11-06 |
| 8241916 | Diagnostic method for oil-filled electrical apparatus | Junji Tanimura, Hisakatsu Kawarai, Tsuyoshi Amimoto | 2012-08-14 |
| 5531080 | Refrigerant circulating system | Takuho Hirahara, Susumu Kawaguchi, Tatsuaki Shimizu, Katsuyuki Kawasaki, Noboru Masuda +7 more | 1996-07-02 |
| 5419144 | Refrigeration device using hydrofluorocarbon refrigerant | Susumu Kawaguchi, Tatsuaki Shimizu, Hiroshige Konishi, Hitoshi Maruyama, Noboru Masuda +2 more | 1995-05-30 |
| 5355695 | Refrigeration device using hydrofluorocarbon refrigerant | Susumu Kawaguchi, Tatsuaki Shimizu, Hiroshige Konishi, Hitoshi Maruyama, Noboru Masuda +2 more | 1994-10-18 |
| 4252364 | Outer panel construction for a vehicle or the like | Yoshihiko Aoyama, Shintaro Marubayashi | 1981-02-24 |