Inventor
Heiji Ikoma
Inventor
Nara, JP
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Mprimary
H03MCoding35%
H03KPulse technique21%
H05BElectric heating12%
G11CStatic stores6%
H01HElectric switches6%
H03HImpedance networks, e.g. resonant circuits6%
H04LTransmission of digital information, e.g. telegraphic communication6%
H10KOrganic electric solid-state devices6%
H10DInorganic electric semiconductor devices3%
PatentTitleYear
8,564,362'Filter circuit, semiconductor integrated circuit, communication apparatus, semiconductor device, and system'20138,476,973'Switch device and layout design method for switch device'20138,395,442'Filter circuit, transmission filter circuit, semiconductor integrated circuit, communication apparatus, and timing adjustment method for filter circuit'20138,217,817'Current switch circuit and D/A converter, semiconductor integrated circuit, and communication device using the same'20128,081,099'D/A converter, differential switch, semiconductor integrated circuit, video apparatus, and communication apparatus'20117,982,644'D/A converter and semiconductor integrated circuit including the same'20117,973,687'Differential switch, D/A converter, semiconductor integrated circuit and communication apparatus'20117,924,199'Current steering DAC'20117,924,188'Rapid recovery circuit'20117,825,843'D/A converter and semiconductor integrated circuit including the same'20107,796,073'Current switch circuit and D/A converter, semiconductor integrated circuit, and communication device using the same'20107,764,211'Current steering DAC'20107,701,373'Current steering DAC'20107,042,278'Voltage reference circuit with reduced power consumption'20067,019,676'D/A converter'20066,791,391'Level shifting circuit'20046,734,817'A/D converter, method of A/D conversion, and signal processing device'20046,590,516'Current steering type D/A converter'20036,492,849'Supply voltage detection circuit'20026,479,930'Dispersion-type electroluminescence element'20026,310,492'CMOS semiconductor integrated circuit'20016,010,742'Electroluminescent lighting element, manufacturing method of the same, and an illuminated switch unit using the same'20005,844,362'Electroluminescent light element having a transparent electrode formed by a paste material which provides uniform illumination'19985,841,230'Electroluminescent lighting element with a light-permeable reflection layer and manufacturing method for the same'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2006Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (11)· patent assignee history
1998–2000Based in Osaka, JP· patent location history
2001–2013Based in Nara, JP· patent location history
2002–2006Based in Ikoma, JP· patent location history
2010–2013Patents assigned to PANASONIC CORP (13)· patent assignee history
2011–2013Patents assigned to IKOMA HEIJI (4)· patent assignee history
2011Patents assigned to NAKATSUKA JUNJI (1)· patent assignee history
2012Patents assigned to OGAWA TOMOHIRO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PANASONIC CORP | 13 | 2010–2013 |
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 11 | 1998–2006 |
| IKOMA HEIJIself | 4 | 2011–2013 |
| NAKATSUKA JUNJI | 1 | 2011 |
| OGAWA TOMOHIRO | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nara, JP | 16 | 2001–2013 |
| Ikoma, JP | 5 | 2002–2006 |
| Osaka, JP | 3 | 1998–2000 |