Inventor
Hirofumi Watsuda
Inventor
Miao-Li County, TW
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information56%
H03KPulse technique11%
H01LSemiconductor devices6%
H05BElectric heating6%
H10DInorganic electric semiconductor devices6%
H10HInorganic light-emitting semiconductor devices having potential barriers6%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%
PatentTitleYear
11,005,475Emission driver and pump unit202110,885,832Display device202110,878,734Driving circuit, tiled electronic device, and test method202010,803,789Light-emitting device202010,694,597LED pixel circuits with PWM dimming202010,497,301Light-emitting device (LED) and LED displaying circuit20199,472,151'Display panel'20169,190,005'Display panel'20158,605,228'Display device and display panel'20138,026,888'Voltage supplying device'20117,233,323'Device and method for varying the row scanning time to compensate the signal attenuation depending on the distance between pixel rows and column driver'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2011Patents assigned to TPO HONG KONG HOLDING LTD (2)· patent assignee history
2007Based in Kobe, JP· patent location history
2011Based in Tokyo, JP· patent location history
2013Patents assigned to CHIMEI INNOLUX CORP (1)· patent assignee history
2013Patents assigned to OKU NORIO (1)· patent assignee history
2013Patents assigned to WATSUDA HIROFUMI (1)· patent assignee history
2013Based in Chu-Nan, TW· patent location history
2015–2021Patents assigned to INNOLUX CORP (8)· patent assignee history
2015–2021Based in Miao-Li County, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INNOLUX CORP | 8 | 2015–2021 |
| TPO HONG KONG HOLDING LTD | 2 | 2007–2011 |
| CHIMEI INNOLUX CORP | 1 | 2013 |
| OKU NORIO | 1 | 2013 |
| WATSUDA HIROFUMIself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Miao-Li County, TW | 8 | 2015–2021 |
| Chu-Nan, TW | 1 | 2013 |
| Tokyo, JP | 1 | 2011 |
| Kobe, JP | 1 | 2007 |