Inventor · disambiguated record
Masumi Koizumi
Also filed as: KOIZUMI MASUMI
19 granted patents·412 citations·filing 1990–2009
95Inventor score
Top patents by PatentIndex Score
19 records- 0187US5700714ADiffusion mask and fabrication method for forming pn-junction elements in a compound semiconductor substrateOKI ELECTRIC IND CO LTD·Filed 1996·Granted Dec 23, 1997·86 cites·20 claims
- 0278US5955748AEnd face light emitting type light emitting diodeOKI ELECTRIC IND CO LTD·Filed 1997·Granted Sep 21, 1999·54 cites·10 claims
- 0377US6297842B1Organic electroluminescent light-emitting array and optical head assemblyOKI DATA KK·Filed 1995·Granted Oct 2, 2001·58 cites·36 claims
- 0475US7847304B2LED array, LED head and image recording apparatusOKI DATA KK·Filed 2007·Granted Dec 7, 2010·6 cites·11 claims
- 0575US5070379AThin-film transistor matrix for active matrix display panel with alloy electrodesOKI ELECTRIC IND CO LTD·Filed 1990·Granted Dec 3, 1991·40 cites·4 claims
- 0673US5087526ABiaxially oriented polyester film for use in floppy discDIAFOIL CO LTD·Filed 1990·Granted Feb 11, 1992·23 cites·4 claims
- 0769US6541796B2Opto-electronic device with self-aligned ohmic contact layerOKI DATA KK·Filed 2001·Granted Apr 1, 2003·11 cites·3 claims
- 0869US6291328B1Opto-electronic device with self-aligned ohmic contact layerOKI DATA KK·Filed 2000·Granted Sep 18, 2001·11 cites·8 claims
- 0964US5093064ALow-shrinkage polyester film and preparation thereofDIAFOIL CO LTD·Filed 1990·Granted Mar 3, 1992·17 cites·5 claims
- 1063US8130253B2Composite semiconductor device, print head and image forming apparatusOHKAWA KAZUYA·Filed 2009·Granted Mar 6, 2012·3 cites·8 claims
- 1158US6023104ALED array alignment mark, method and mask for forming same, and LED array alignment methodOKI ELECTRIC IND CO LTD·Filed 1999·Granted Feb 8, 2000·20 cites·22 claims
- 1257US5869848AEnd face light-emitting-type LED, end face light-emitting-type LED array and methods of manufacturing themOKI ELECTRIC IND CO LTD·Filed 1996·Granted Feb 9, 1999·23 cites·20 claims
- 1356US5943586ALED array alignment mark, method and mask for forming same, and LED array alignment methodOKI ELECTRIC IND CO LTD·Filed 1996·Granted Aug 24, 1999·20 cites·13 claims
- 1455US6858875B2Light-emitting-element arrayOKI DATA KK·Filed 2003·Granted Feb 22, 2005·6 cites·17 claims
- 1555US6781246B2Semiconductor array device with single interconnection layerOKI DATA KK·Filed 2003·Granted Aug 24, 2004·6 cites·20 claims
- 1648US5225364AMethod of fabricating a thin-film transistor matrix for an active matrix display panelOKI ELECTRIC IND CO LTD·Filed 1991·Granted Jul 6, 1993·12 cites·5 claims
- 1746US4960636ABiaxially oriented polyester film for floppy diskDIAFOIL CO LTD·Filed 1990·Granted Oct 2, 1990·9 cites·2 claims
- 1834USRE34727ELow-shrinkage polyester film and preparation thereofDIAFOIL CO LTD·Filed 1992·Granted Sep 13, 1994·4 cites·5 claims
- 1932US5866439AMethod of fabricating an end face light emitting type light-emitting diode and a light-emitting diode array deviceOKI ELECTRIC IND CO LTD·Filed 1996·Granted Feb 2, 1999·3 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →