Inventor · disambiguated record
Ryuichi Hirayama
Also filed as: HIRAYAMA RYUICHI
10 granted patents·4 pending applications·34 citations·filing 1989–2022
84Inventor score
Files withCASIO COMPUTER CO LTD4HIRAYAMA RYUICHI4TOPPAN PRINTING CO LTD3ORTUS TECHNOLOGY CO LTD1UNIV OSAKA1
Top patents by PatentIndex Score
14 records- 0184US8330700B2Driving circuit and driving method of active matrix display device, and active matrix display deviceYAMANAKA SHIGERU·Filed 2008·Granted Dec 11, 2012·8 cites·11 claims
- 0274US7511691B2Display drive device and display apparatus having sameCASIO COMPUTER CO LTD·Filed 2004·Granted Mar 31, 2009·14 cites·25 claims
- 0370US8159435B2Active matrix type display device which compensates for an electrical potential variation caused by inter-pixel parasitic capacitance between two adjacent pixels connected to different signal linesHIRAYAMA RYUICHI·Filed 2007·Granted Apr 17, 2012·3 cites·12 claims
- 0460US7365592B2Power supply circuitCASIO COMPUTER CO LTD·Filed 2005·Granted Apr 29, 2008·6 cites·10 claims
- 0557US10649249B2Liquid crystal driving apparatus and liquid crystal driving methodTOPPAN PRINTING CO LTD·Filed 2018·Granted May 12, 2020·0 cites·3 claims
- 0657US8294655B2Display drive device and display apparatus having sameHIRAYAMA RYUICHI·Filed 2009·Granted Oct 23, 2012·0 cites·20 claims
- 0756US11143890B2Liquid crystal optical modulation device and liquid crystal optical modulation methodTOPPAN PRINTING CO LTD·Filed 2019·Granted Oct 12, 2021·0 cites·6 claims
- 0847US2024142471A1Test for mild cognitive impairmentUNIV OSAKA·Filed 2022·Application pending·0 cites
- 0944US8581893B2Liquid crystal display apparatusHIRAYAMA RYUICHI·Filed 2009·Granted Nov 12, 2013·0 cites·17 claims
- 1044US2019011774A1Display deviceORTUS TECHNOLOGY CO LTD·Filed 2018·Application pending·0 cites
- 1143US11187931B2Polymer network liquid crystal display device and liquid crystal display methodTOPPAN PRINTING CO LTD·Filed 2018·Granted Nov 30, 2021·0 cites·4 claims
- 1241US2011157501A1Polymer network liquid crystal driving apparatus and driving method, and polymer network liquid crystal panelCASIO COMPUTER CO LTD·Filed 2010·Application pending·0 cites
- 1339US2012075277A1Liquid crystal display apparatus and method of driving the sameHIRAYAMA RYUICHI·Filed 2011·Application pending·0 cites
- 1433US5089918AMagnetic recording and/or reproducing apparatus having single head with two gaps and providing different lead angles in different operating statesCASIO COMPUTER CO LTD·Filed 1989·Granted Feb 18, 1992·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →