Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355379 | Power conversion system | Reiji Kawashima, Koudai Okuzono, Keisuke Ohta, Masahide Fujiwara, Yuu Yoshikawa +1 more | 2025-07-08 |
| 12261550 | Power conversion device | Ryou Matsuyama, Tomoisa Taniguchi | 2025-03-25 |
| 12249906 | Air conditioner | Keisuke Ohta, Reiji Kawashima | 2025-03-11 |
| 12224678 | Power converter and heat pump system provided therewith | Reiji Kawashima, Masahide Fujiwara | 2025-02-11 |
| 11979097 | Power conversion device | Ryou Matsuyama, Tomoisa Taniguchi | 2024-05-07 |
| 11788752 | Power source quality management system and air conditioning apparatus | Jun Takahashi, Reiji Kawashima | 2023-10-17 |
| 11577186 | Active filter system and air conditioning device | Reiji Kawashima, Takayuki Fujita | 2023-02-14 |
| 11496084 | Semiconductor device | Kazuya Tsubouchi | 2022-11-08 |
| 11374487 | Power source quality management system and air conditioner | Reiji Kawashima, Takayuki Fujita | 2022-06-28 |
| 11201470 | Power-source power factor control system, phase modifying apparatus, and active filter apparatus | Reiji Kawashima, Takayuki Fujita | 2021-12-14 |
| 11084481 | Travel control apparatus | — | 2021-08-10 |
| 10926072 | Operation tool for fluid injector using multi microneedle device | Tomoya Sumida, Yumiko Ikeda, Yoshihiro Kodama, Kazuhiko Shiomitsu | 2021-02-23 |
| 10651651 | Device with built-in active filter | Reiji Kawashima, Takayuki Fujita | 2020-05-12 |
| 10589076 | Operational instrument for fluid injector using multi-microneedle device | Tomoya Sumida, Yumiko Ikeda | 2020-03-17 |
| 10511267 | Power amplifier | Takuma TORII, Koji Yamanaka, Junichi Udomoto | 2019-12-17 |
| 10458356 | Vehicle control apparatus | — | 2019-10-29 |
| 10046152 | Operation tool for fluid injector using multi-microneedle device | Tomoya Sumida, Yumiko Ikeda, Yoshihiro Kodama, Kazuhiko Shiomitsu | 2018-08-14 |
| 9889285 | Operation tool for fluid injector using multi-microneedle device | Tomoya Sumida, Yumiko Ikeda | 2018-02-13 |
| 9207061 | Magnetic-pole position detection apparatus for synchronous machines | Hisanori Yamasaki, Keita Hatanaka, Hidetoshi Kitanaka | 2015-12-08 |
| 8975847 | Power conversion device | — | 2015-03-10 |
| 8847528 | Control apparatus and control method for AC rotary machine | Sho Kato, Hisanori Yamasaki, Keita Hatanaka | 2014-09-30 |
| 8736206 | Power converting apparatus | Keita Hatanaka | 2014-05-27 |
| 8712618 | Power conversion device for electric vehicle | Hideo Okayama | 2014-04-29 |
| 8674631 | Power conversion apparatus and method of controlling capacitor voltage of power conversion apparatus | Keita Hatanaka | 2014-03-18 |
| 8669729 | Power converting apparatus for electric vehicle | Kenichi Kusano, Yoshinori Yamashita, Hidetoshi Kitanaka, Keita Hatanaka | 2014-03-11 |