Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12431788 | Power converter apparatus provided with ripple cancel current generator circuit | — | 2025-09-30 |
| 12308751 | Power conversion apparatus including transformer and operable with reduced common mode noise | Noriaki Takeda, Naoki Sawada | 2025-05-20 |
| 12101034 | Power converter apparatus converting input power having a predetermined voltage into output power having a predetermined output voltage over wide range with higher efficiency | Akira Kato, Motohiko Fujimura, Kazuyuki Sakiyama, Takehiko Yamakawa | 2024-09-24 |
| 11923760 | Switching power supply apparatus for reducing common mode noise due to line-to-ground capacitances | Naoki Sawada, Noriaki Takeda | 2024-03-05 |
| 11777412 | Switching power supply apparatus for reducing common mode noise due to line-to-ground capacitances | Noriaki Takeda, Naoki Sawada | 2023-10-03 |
| 11601162 | Capacitive coupling circuit device provided with capacitive coupling circuit demodulating modulated signal transmitted through coupling capacitor | — | 2023-03-07 |
| 11336095 | Power transmission system including multiphase alternating-current power supplies and loads, and capable of transmitting power between different types of power supplies and loads | Motohiko Fujimura, Masahiro Yamaoka, Atsushi Yamamoto | 2022-05-17 |
| 11201472 | Power transmission system capable of preventing power transmission efficiency from degrading due to frequency mismatch and loss of synchronization | Masahiro Yamaoka, Atsushi Yamamoto, Motohiko Fujimura | 2021-12-14 |
| 11070126 | Power supply circuit having improved noise suppression | Noriaki Takeda | 2021-07-20 |
| 11038355 | Power transmission system preventing power transmission efficiency from degrading due to delay, and capable of reducing effects of high frequency noise | Motohiko Fujimura, Masahiro Yamaoka, Atsushi Yamamoto | 2021-06-15 |
| 11038373 | Power transmission system including power transmitter apparatus, power receiver apparatus, or power transmitter and receiver apparatus easily attachable and detachable to/from transmission path | Atsushi Yamamoto, Motohiko Fujimura, Masahiro Yamaoka | 2021-06-15 |
| 11018509 | Power transmission system capable of synchronizing power transmitter apparatus having multiple operation modes, with power receiver apparatus having multiple operation | Masahiro Yamaoka, Atsushi Yamamoto, Motohiko Fujimura | 2021-05-25 |
| 10903737 | Power supply circuit for generating a predetermined voltage and a predetermined current | Noriaki Takeda | 2021-01-26 |
| 10892676 | Power supply circuit for generating a predetermined voltage and a predetermined current | Noriaki Takeda | 2021-01-12 |
| 10784716 | Power transmission system preventing power transmission efficiency from degrading due to delay | Atsushi Yamamoto, Masahiro Yamaoka, Motohiko Fujimura | 2020-09-22 |
| 10498218 | Switching circuit apparatus and electric power converter capable of reducing common mode noise in asymmetric circuit | Akira Minegishi, Atsushi Yamamoto, Masahiro Yamaoka, Tohlu Matsushima, Osami Wada | 2019-12-03 |
| 10468960 | Code modulator for code-modulating power with modulation code, code demodulator for code-demodulating code-modulated power with demodulation code, and controller thereof | Atsushi Yamamoto, Shoichi Hara, Kohei Masuda, Akira Minegishi | 2019-11-05 |
| 10411002 | Electric power conversion circuit including switches and bootstrap circuits, and electric power transmission system including electric power conversion circuit | Atsushi Yamamoto, Shoichi Hara | 2019-09-10 |
| 10326470 | Converter for converting code-modulated power with conversion code, and controller thereof | Shoichi Hara, Atsushi Yamamoto, Kohei Masuda | 2019-06-18 |
| 10027248 | Electric power conversion circuit including switches and reactors, and electric power conversion device including electric power conversion circuit and control circuit | Shoichi Hara, Atsushi Yamamoto | 2018-07-17 |
| 10014855 | Electric power conversion circuit including switches and bootstrap circuits, and electric power transmission system including electric power conversion circuit | Atsushi Yamamoto, Shoichi Hara | 2018-07-03 |
| 9979437 | Power transmitting apparatus for modulating and transmitting power, power receiving apparatus for receiving and demodulating power, and power transmission system with them | Atsushi Yamamoto, Shoichi Hara | 2018-05-22 |
| 9923486 | Electric power conversion circuit including switches and bootstrap circuits, and electric power transmission system including electric power conversion circuit | Atsushi Yamamoto, Shoichi Hara | 2018-03-20 |
| 9899911 | Power source circuit | Akira Minegishi | 2018-02-20 |
| 9641188 | Power router apparatus for generating code-modulated powers | Atsushi Yamamoto, Shoichi Hara, Kohei Masuda | 2017-05-02 |