Inventor
Guichao Hua
Inventor
Zhejiang, CN
Overview
Patents· 32 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 systems31%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications29%
H05BElectric heating14%
Y02PClimate change mitigation technologies in the production or processing of goods5%
F21KNon-electric light sources using luminescence3%
F21VFunctional features or details of lighting devices or systems thereof3%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted3%
Y10TTechnical subjects covered by former us classification3%
F21SNon-portable lighting devices1%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems1%
PatentTitleYear
9,398,665'Constant current drive for LED light source'20169,380,678'Auxiliary power supply circuit of two wire dimmer'20169,215,767'Device and system for load driving'20159,185,756'Load driving device and system, limiting point control method and device'20159,155,141'Multi-path constant current driving circuit'20158,867,250'High output current split package A/C adapter'20148,866,409'Constant-current LED driver circuit and output voltage adjustable circuit and method thereof'20148,853,957'High efficiency constant current LED driver'20148,783,910'LED lamp system utilizing a hollow liquid-cooled device'20148,674,621'Constant current control circuit with multiple outputs for LED driver'20148,659,919'Circuit to improve light load power factor of power supply'20148,629,664'Multi-path constant current driving circuit'20148,552,942'LED drive circuit for SCR dimming'20138,454,185'Hollow, liquid cooling and strip-shaped LED lamp'20138,369,118'Synchronous rectifying drive circuit with energy feedback for voltage doubler rectifer'20138,294,381'PWM dimming circuit for LED'20128,077,481'Primary sampling current controlled synchronous rectifying drive circuit'20117,957,163'Current controlled synchronous rectifying drive circuit'20117,791,903'DC-DC flyback converter having a synchronous rectification self-driven circuit'20107,012,817'Converter with integrated active clamp circuit and bias circuit'20066,879,497'Multiple output power adapter'20056,583,993'Self-driven synchronous rectification scheme for wide output range'20036,563,719'Self-driven synchronous rectification scheme'20036,118,673'Single-stage AC/DC converters with saturable conductor PFC'20006,084,792'Power converter with circuits for providing gate driving'20006,005,780'Single-stage AC/DC conversion with PFC-tapped transformers'19995,999,433'Half-bridge DC to DC converter with low output current ripple'19995,790,389'Consolidated soft-switching AC/DC converters'19985,486,752'Zero-current transition PWM converters'19965,442,540'Soft-switching PWM converters'19955,418,704'Zero-voltage-transition pulse-width-modulated converters'19955,262,930'Zero-voltage transition PWM converters'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2000Based in Blacksburg, VA, US· patent location history
2000–2016Based in Hangzhou, CN· patent location history
2003–2006Based in Edison, NJ, US· patent location history
2011–2016Patents assigned to HUA GUICHAO (15)· patent assignee history
2011–2015Based in Zhejiang, CN· patent location history
2012–2015Patents assigned to YAO XIAOLI (8)· patent assignee history
2013–2016Patents assigned to INVENTRONICS HANGZHOU INC (13)· patent assignee history
2013–2015Patents assigned to WU XINKE (6)· patent assignee history
2014–2015Patents assigned to GE LIANG AN (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUA GUICHAOself | 15 | 2011–2016 |
| INVENTRONICS HANGZHOU INC | 13 | 2013–2016 |
| YAO XIAOLI | 8 | 2012–2015 |
| WU XINKE | 6 | 2013–2015 |
| GE LIANG AN | 5 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Zhejiang, CN | 11 | 2011–2015 |
| Hangzhou, CN | 10 | 2000–2016 |
| Blacksburg, Virginia, US | 8 | 1993–2000 |
| Edison, New Jersey, US | 3 | 2003–2006 |