Inventor · disambiguated record
Yukio Yoshikawa
Also filed as: YOSHIKAWA YUKIO
25 granted patents·953 citations·filing 1980–2017
97Inventor score
Top patents by PatentIndex Score
25 records- 0197US5386306AActive matrix liquid crystal display element and projection type active matrix liquid crystal display deviceASAHI GLASS CO LTD·Filed 1992·Granted Jan 31, 1995·177 cites·13 claims
- 0297US5150232AActive matrix liquid crystal display element and projection type active matrix liquid crystal display deviceASAHI GLASS CO LTD·Filed 1989·Granted Sep 22, 1992·178 cites·24 claims
- 0396US5775791ASurface emission apparatusCOPAL CO LTD·Filed 1993·Granted Jul 7, 1998·200 cites·6 claims
- 0493US6445011B1Light-emitting diodeTOYODA GOSEI KK·Filed 2000·Granted Sep 3, 2002·85 cites·11 claims
- 0585US5163063ASemiconductor laser driving circuitCOPAL CO LTD·Filed 1991·Granted Nov 10, 1992·100 cites·25 claims
- 0684US7883789B2Substrate with transparent conductive oxide film, process for its production and photoelectric conversion elementASAHI GLASS CO LTD·Filed 2007·Granted Feb 8, 2011·6 cites·13 claims
- 0774US6713877B2Light-emitting diodeTOYODA GOSEI KK·Filed 2002·Granted Mar 30, 2004·18 cites·13 claims
- 0874US4514064AElectromagnetic shutterCOPAL CO LTD·Filed 1982·Granted Apr 30, 1985·12 cites·20 claims
- 0972USD388123SLight-emitting diode indicatorCOPAL CO LTD·Filed 1995·Granted Dec 23, 1997·21 cites·1 claims
- 1071US4462672AControl circuit for an electromagnetically driven programming shutterCOPAL CO LTD·Filed 1983·Granted Jul 31, 1984·10 cites·13 claims
- 1169US7999215B2Image reading apparatus having dual white reference plate and image reading method for effectively performing shading compensationRISO KAGAKU CORP·Filed 2009·Granted Aug 16, 2011·2 cites·20 claims
- 1268US6643009B2Method of inspecting a wrap-fitted state of a cap wrap-fitted to a neck of a bottle and apparatus thereforCROWN CORK JAPAN·Filed 2002·Granted Nov 4, 2003·15 cites·16 claims
- 1368US4494846AElectromagnetic shutterCOPAL CO LTD·Filed 1982·Granted Jan 22, 1985·9 cites·12 claims
- 1467USD360029SAir filter unit for use in respiratorsGRAND BLEU INT INC·Filed 1994·Granted Jul 4, 1995·13 cites·1 claims
- 1564US5902406ALow pressure CVD systemASAHI GLASS CO LTD·Filed 1997·Granted May 11, 1999·34 cites·19 claims
- 1662US4527877ADevice for detecting the time of termination of opening operation of shutter blades of an electromagnetic programming shutterCOPAL CO LTD·Filed 1982·Granted Jul 9, 1985·7 cites·10 claims
- 1752US4408856ADevice for locking a blade driver in an electronic shutterCOPAL CO LTD·Filed 1981·Granted Oct 11, 1983·5 cites·5 claims
- 1851US6018378ALiquid crystal/polymer composite with high optical anisotropy and low dielectric anisotropy to lower hysteresis exhibiting transparent and light scattering statesASAHI GLASS CO LTD·Filed 1997·Granted Jan 25, 2000·12 cites·13 claims
- 1949US9900466B2Image processing apparatusRISO KAGAKU CORP·Filed 2017·Granted Feb 20, 2018·0 cites·2 claims
- 2049US6122021ALiquid crystal display element and a projection type liquid crystal display apparatusASAHI GLASS CO LTD·Filed 1994·Granted Sep 19, 2000·13 cites·38 claims
- 2147US4393897AFluid outlet structureNISSAN MOTOR·Filed 1980·Granted Jul 19, 1983·9 cites·3 claims
- 2246US7459187B2Surface-treatment method and equipmentKOBE STEEL LTD·Filed 2004·Granted Dec 2, 2008·1 cites·27 claims
- 2344US5809676ASign display apparatusCOPAL CO LTD·Filed 1996·Granted Sep 22, 1998·15 cites·20 claims
- 2439US5200942AFocus adjusting apparatus for an optical pickup apparatusCOPAL CO LTD·Filed 1990·Granted Apr 6, 1993·5 cites·8 claims
- 2535US4393898AFluid outlet device and a method of controlling fluid flow through a nozzleNISSAN MOTOR·Filed 1980·Granted Jul 19, 1983·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →