Inventor
Tzu-Feng Tseng
Inventor
Hsinchu, TW
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Hprimary
H10HInorganic light-emitting semiconductor devices having potential barriers23%
B26DCutting16%
Y10TTechnical subjects covered by former us classification16%
B26BHand-held cutting tools not otherwise provided for7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
B23DPlaning2%
B26FPerforating2%
B82YSpecific uses or applications of nanostructures2%
F21LLighting devices or systems thereof, being portable or specially adapted for transportation2%
F21VFunctional features or details of lighting devices or systems thereof2%
PatentTitleYear
8,517,808'Coin hopper with an upward coin passage'20138,237,182'Organic adhesive light-emitting device with ohmic metal bulge'20127,683,383'Light emitting device having circuit protection unit'20107,591,211'Cutting apparatus'20097,358,540'Organic adhesive light-emitting device with ohmic metal contact'20087,326,967'Light emitting diode having an omnidirectional reflector including a transparent conductive layer'20087,172,909'Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof'20077,131,212'Marking device'20067,131,363'Paper-cutting apparatus and paper-holding device of the same'20067,095,765'Light emitter with a voltage dependent resistor layer'20067,009,217'Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof'20067,008,858'Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof'20066,990,884'Vertical rotary multi-functional trimming apparatus'20066,987,287'Light emitting diode having an adhesive layer and a reflective layer'20066,966,247'Cutting apparatus'20056,951,159'Multi-functional trimming apparatus'20056,931,974'Cutting apparatus'20056,876,005'Light emitting diode having an adhesive layer'20056,616,052'Digital business card'20036,506,543'Method of photolithography using super-resolution near-field structure'20036,404,722'Method of increasing recording density and capacity of a compact disc'20026,391,395'Method of fabricating a polysilicon layer'20026,269,721'Electric paper punch'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2006Patents assigned to PRIMAX ELECTRONICS LTD (7)· patent assignee history
2001–2013Based in Taipei, TW· patent location history
2002–2003Patents assigned to RITEK CORP (4)· patent assignee history
2002–2003Based in Hsinchu County, TW· patent location history
2005–2012Patents assigned to EPISTAR CORP (10)· patent assignee history
2005–2012Based in Hsinchu, TW· patent location history
2012–2013Patents assigned to TSENG TZU-FENG (2)· patent assignee history
2013Patents assigned to CHANG CHIAO-HAO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EPISTAR CORP | 10 | 2005–2012 |
| PRIMAX ELECTRONICS LTD | 7 | 2001–2006 |
| RITEK CORP | 4 | 2002–2003 |
| TSENG TZU-FENGself | 2 | 2012–2013 |
| CHANG CHIAO-HAO | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 10 | 2005–2012 |
| Taipei, TW | 9 | 2001–2013 |
| Hsinchu County, TW | 4 | 2002–2003 |