Inventor
Atsushi Hirama
Inventor
Tokyo, JP
Overview
Patents· 22 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 information51%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%
G06FElectric digital data processing7%
H01LSemiconductor devices7%
H10KOrganic electric solid-state devices7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
H03MCoding5%
G11CStatic stores2%
H03FAmplifiers2%
H03KPulse technique2%
PatentTitleYear
10,818,218Display driver and semiconductor device202010,665,164Display driver and semiconductor device202010,621,919Display driver and semiconductor device202010,199,000Source driver IC chip20199,799,265'Display drive circuit including an output terminal'20179,589,501'Display drive circuit including an output terminal'20179,570,011'Source driver IC chip'20179,406,279'Source driver IC chip'20169,208,716'Display drive circuit including an output terminal'20159,202,425'Device circuit and display apparatus having operational amplifiers with parasitic diodes'20159,099,026'Source driver IC chip'20158,736,595'Driving device and driving method for image display device'20148,605,070'Operational amplifier and display panel driving device'20138,587,507'Driving circuit and display apparatus having operational amplifiers with parasitic diodes'20138,514,159'Liquid crystal drive device'20138,384,643'Drive circuit and display device'20138,040,315'Device for driving a display panel with sequentially delayed drive signal'20117,948,278'Load capacity driving circuit'20117,505,019'Drive circuit'20097,362,300'Output circuit, liquid crystal driving circuit, and liquid crystal driving method'20087,295,142'Digital-to-analog converter with short integration time constant'20077,129,877'Digital-to-analog converter with switched capacitor network'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2008Patents assigned to OKI ELECTRIC IND CO LTD (3)· patent assignee history
2006–2015Based in Tokyo, JP· patent location history
2009–2014Patents assigned to OKI SEMICONDUCTOR CO LTD (7)· patent assignee history
2011–2017Based in Chiba, JP· patent location history
2013–2020Patents assigned to LAPIS SEMICONDUCTOR CO LTD (12)· patent assignee history
2013–2014Patents assigned to HIRAMA ATSUSHI (5)· patent assignee history
2013Patents assigned to HIGUCHI KOJI (3)· patent assignee history
2015–2020Based in Yokohama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LAPIS SEMICONDUCTOR CO LTD | 12 | 2013–2020 |
| OKI SEMICONDUCTOR CO LTD | 7 | 2009–2014 |
| HIRAMA ATSUSHIself | 5 | 2013–2014 |
| HIGUCHI KOJI | 3 | 2013 |
| OKI ELECTRIC IND CO LTD | 3 | 2006–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 10 | 2006–2015 |
| Yokohama, JP | 7 | 2015–2020 |
| Chiba, JP | 5 | 2011–2017 |