Inventor · disambiguated record
Akio Fujikawa
Also filed as: FUJIKAWA AKIO
14 granted patents·2 pending applications·73 citations·filing 1995–2006
90Inventor score
Top patents by PatentIndex Score
16 records- 0178US7456767B2D/A converter circuit, organic EL drive circuit, and organic EL displayROHM CO LTD·Filed 2005·Granted Nov 25, 2008·11 cites·12 claims
- 0278US7446737B2Organic EL panel driving circuit, organic EL display device and organic EL panel driving circuit inspecting deviceROHM CO LTD·Filed 2005·Granted Nov 4, 2008·4 cites·15 claims
- 0374US6337597B2Semiconductor integrated circuit device having a voltage regulatorROHM CO LTD·Filed 2001·Granted Jan 8, 2002·9 cites·5 claims
- 0460US7042270B2Interface system between controller IC and driver IC, and IC suitable for such interface systemROHM CO LTD·Filed 2002·Granted May 9, 2006·8 cites·8 claims
- 0558US7420529B2Organic EL panel drive circuit and organic EL display deviceROHM CO LTD·Filed 2004·Granted Sep 2, 2008·5 cites·15 claims
- 0657US5631582AFrequency and phase comparatorROHM CO LTD·Filed 1995·Granted May 20, 1997·20 cites·5 claims
- 0755US6963172B2Organic EL element drive circuit and organic EL display device using the same drive circuitROHM CO LTD·Filed 2003·Granted Nov 8, 2005·4 cites·12 claims
- 0851US6268763B1Semiconductor integrated circuit device for driving a magnetic disk apparatusROHM CO LTD·Filed 1999·Granted Jul 31, 2001·8 cites·3 claims
- 0949US7321347B2Organic EL element drive circuit and organic EL display device using the same drive circuitROHM CO LTD·Filed 2004·Granted Jan 22, 2008·2 cites·17 claims
- 1047US7426087B2Information recording apparatusROHM CO LTD·Filed 2006·Granted Sep 16, 2008·0 cites·2 claims
- 1144US7477217B2D/A converter circuit, organic EL drive circuit and organic EL display deviceROHM CO LTD·Filed 2004·Granted Jan 13, 2009·2 cites·2 claims
- 1242US7084575B2Organic EL panel drive circuit and propriety test method for drive current of the same organic EL element drive circuitROHM CO LTD·Filed 2004·Granted Aug 1, 2006·0 cites·19 claims
- 1342US7002303B2Organic EL panel drive circuit and organic EL display device using the same drive circuitROHM CO LTD·Filed 2004·Granted Feb 21, 2006·0 cites·19 claims
- 1440US2006152271A1Interface system between controller IC and driver IC, and IC suitable for such interface systemROHM CO LTD·Filed 2006·Application pending·0 cites
- 1540US2007132672A1Organic el drive circuit and organic el display device using the sameMAEDE JUN·Filed 2005·Application pending·0 cites
- 1635US7019929B2Disk recording apparatus with erroneous writing protectionROHM CO LTD·Filed 2002·Granted Mar 28, 2006·0 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Akio Fujikawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →