Inventor
Yoichi Tamegai
Inventor
Kyoto, JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems18%
H02JElectric power networks13%
H05BElectric heating13%
G01RMeasuring electric variables8%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
E02BHydraulic engineering3%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%
PatentTitleYear
10,802,078Current monitoring circuit and coulomb counter circuit202010,186,959Power supply circuit, control circuit thereof, and electronic apparatus201910,101,399Apparatus for estimating residual battery capacity, system for estimating residual battery capacity, battery pack, and method for estimating residual battery capacity20188,159,797'Overvoltage protection circuit'20128,143,815'DC/DC converter'20128,134,106'Current detection circuit'20128,058,821'DC/DC converter'20118,044,639'Selector circuit'20117,994,737'Drive circuit of DC/DC converter, light emitting apparatus and electronic device using the same'20117,960,955'Power supply device, electronic device using the same, and semiconductor device'20117,924,540'Over-voltage protection circuit'20117,894,717'Control circuit for self exciting DC/DC converter'20117,863,833'DC/DC converter control circuit, and power supply apparatus, light emitting apparatus and electronic device using the same'20117,781,988'DC/DC converter'20107,579,784'Switching power supply and its control circuit, and electronic apparatus employing such switching power supply'20097,368,884'DC/DC converter'20087,253,596'Power supply apparatus capable of supplying a stable converted voltage'20077,248,002'Light emission control apparatus and light emission control method with temperature-sensitive driving current control'20077,190,195'Input circuit and output circuit'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2020Patents assigned to ROHM CO LTD (18)· patent assignee history
2007–2020Based in Kyoto, JP· patent location history
2012Patents assigned to TAMEGAI YOICHI (3)· patent assignee history
2012Patents assigned to YAMAMOTO ISAO (2)· patent assignee history
2012Patents assigned to NATE SATORU (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROHM CO LTD | 18 | 2007–2020 |
| TAMEGAI YOICHIself | 3 | 2012 |
| YAMAMOTO ISAO | 2 | 2012 |
| NATE SATORU | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kyoto, JP | 19 | 2007–2020 |