Inventor
Jim-Hung Liang
Inventor
Taipei, TW
Overview
Patents· 14 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 systems29%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications21%
F21VFunctional features or details of lighting devices or systems thereof8%
H05BElectric heating8%
Y02PClimate change mitigation technologies in the production or processing of goods8%
A63FCard, board, or roulette games4%
F21KNon-electric light sources using luminescence4%
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 emitted4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
G06FElectric digital data processing4%
PatentTitleYear
11,133,029Tape head with element-to-element spacing and adjustment and mechanism to control the spacing202111,103,772Mediating multiplayer electronic game sessions20219,081,293'System and method for lithography exposure with correction of overlay shift induced by mask heating'20158,441,211'Electronic ballast capable of self-protection at natural or premature end of life of fluorescent light tube'20138,437,153'Series resonant converter capable of reducing peak voltage generated at power switches and peak current generated on secondary side when being turned on from off immediately'20138,406,018'Series resonant converter with overload delay and short-circuit protection mechanisms'20138,373,350'Fixed-time, fixed-frequency, preheat-type ballast circuit for fluorescent light tube'20138,213,191'Constant-current circuit capable of voltage compensation and zero-voltage switching'20128,079,727'Recessed lamp support structure'20117,965,023'LED lamp'20116,950,318'Flyback converter for performing a zero voltage switch in boundary mode'20056,507,500'Ring-free zero-voltage switching technique for use in switching power converters'20036,201,714'Exchanging converter having a zero-voltage switching control circuit for driving an output voltage filter capacitor to partially feed back storage energy to an input side of the transformer or storage inductor'20016,108,222'Power factor correction circuit'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2001Patents assigned to SKYNET ELECTRONICS CO LTD (2)· patent assignee history
2000–2013Based in Taipei, TW· patent location history
2003–2013Patents assigned to SKYNET ELECTRONIC CO LTD (9)· patent assignee history
2011–2013Patents assigned to LIANG JIM-HUNG (6)· patent assignee history
2013Patents assigned to CHEN CHING-CHUAN (1)· patent assignee history
2015Based in Hsinchu, TW· patent location history
2021Patents assigned to BUNCH LIVE INC (1)· patent assignee history
2021Based in Campbell, CA, US· patent location history
2021Based in Toronto, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SKYNET ELECTRONIC CO LTD | 9 | 2003–2013 |
| LIANG JIM-HUNGself | 6 | 2011–2013 |
| SKYNET ELECTRONICS CO LTD | 2 | 2000–2001 |
| BUNCH LIVE INC | 1 | 2021 |
| CHEN CHING-CHUAN | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Taipei, TW | 11 | 2000–2013 |
| Campbell, California, US | 1 | 2021 |
| Toronto, CA | 1 | 2021 |
| Hsinchu, TW | 1 | 2015 |