Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11967889 | DC-DC converter having charge pump circuit for determining operation timing | — | 2024-04-23 |
| 10199905 | Cooling medium supply/discharge device and superconducting rotary machine including cooling medium supply/discharge device | Katsuya Umemoto, Satoru Takao | 2019-02-05 |
| 9577504 | Cryogen supply and return device for use with cryogen rotating electric machine and superconducting rotating electric machine with cryogen supply and return device | Katsuya Umemoto, Minoru Yokoyama, Satoru Takao, Kagao Okumura, Mitsugi Yamaguchi +2 more | 2017-02-21 |
| 9130447 | Rotor core and superconducting rotating machine with the rotor core | Katsuya Umemoto, Minoru Yokoyama | 2015-09-08 |
| 8643240 | Superconducting rotating electrical machine and stator for use with superconducting rotating electrical machine | Katsuya Umemoto, Minoru Yokoyama, Yousuke Kimura | 2014-02-04 |
| 4378234 | Particulate material collecting apparatus | Takeshi Suzuki, Mikio Murao, Masaharu Takagishi | 1983-03-29 |