Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10199867 | Power conversion device and wireless power transmission system | Keiichi Ichikawa, Henri Bondar | 2019-02-05 |
| 10191119 | Inspecting apparatus and inspecting method for noncontact power transfer system | Kazuya Kato | 2019-01-29 |
| 10033217 | Wireless power receiver device, wireless power transmitter device, and wireless power transceiver device | Kazuya Kato, Tsutomu Ieki | 2018-07-24 |
| 10018659 | Frequency characteristic measurement method | Keiichi Ichikawa | 2018-07-10 |
| 10014720 | Power transmission system | Keiichi Ichikawa | 2018-07-03 |
| 9876362 | Power transfer system | Keiichi Ichikawa, Tsuyoshi Suesada, Henri Bondar | 2018-01-23 |
| 9780839 | Power reception device, power transmission device, and power transmission system | Nobuhito Tsubaki, Noboru Kato, Tsuyoshi Suesada | 2017-10-03 |
| 8772978 | Power transmitting apparatus, power receiving apparatus, and wireless power transmission system | Keiichi Ichikawa, Kazuya Kato, Miyako Kabumoto | 2014-07-08 |
| 8476789 | Power transmitting apparatus, power receiving apparatus, and power transmission system | Keiichi Ichikawa, Kazuya Kato | 2013-07-02 |
| 8330416 | Battery module and charging module | — | 2012-12-11 |
| 6559729 | Oscillator, method for producing oscillator, and communication apparatus incorporating same | Masao Uno | 2003-05-06 |
| 6456169 | Voltage-controlled oscillator and electronic device using same | Teruaki OSHITA | 2002-09-24 |
| 6388517 | Input change-over type amplifier and frequency change-over type oscillator using the same | Yoshiyuki Mashimo | 2002-05-14 |
| 6104255 | Voltage controlled oscillator with a resonator common to a resonance circuit and an oscillation circuit and a capacitor | Takeshi Kataya | 2000-08-15 |
| 5721517 | Method of adjusting the variable range of oscillation frequency of a voltage-controlled oscillator | Tatsuo Bizen | 1998-02-24 |
| 5576667 | Voltage control type oscillator | — | 1996-11-19 |
| 5539359 | Voltage-controlled oscillator having voltage-sensitive capacitor with bias supply circuit | — | 1996-07-23 |
| 5534825 | Volage-controlled oscillation circuit with an impedance element for carrier-to-noise compensation | Tatsuo Bizen | 1996-07-09 |