Inventor · disambiguated record
Yasumasa Kashima
Also filed as: KASHIMA YASUMASA
13 granted patents·61 citations·filing 1988–2022
89Inventor score
Top patents by PatentIndex Score
13 records- 0157US12396275B2Photo detection deviceOPTOHUB CO LTD·Filed 2022·Granted Aug 19, 2025·0 cites·2 claims
- 0250US6562649B2Compound semiconductor light emitting device and process for producing the sameOKI ELECTRIC IND CO LTD·Filed 2002·Granted May 13, 2003·2 cites·9 claims
- 0348US5994158AMethod of fabricating an abrupt hetero interface by organometallic vapor phase growthOKI ELECTRIC IND CO LTD·Filed 1997·Granted Nov 30, 1999·16 cites·31 claims
- 0444US4975752ALight-emitting diodeOKI ELECTRIC IND CO LTD·Filed 1988·Granted Dec 4, 1990·9 cites·14 claims
- 0543US6013539AEdge emitting led and method of forming the sameOKI ELECTRIC IND CO LTD·Filed 1998·Granted Jan 11, 2000·10 cites·13 claims
- 0641US5889294AEdge emitting LED having a selective-area growth optical absorption regionOKI ELECTRIC IND CO LTD·Filed 1997·Granted Mar 30, 1999·9 cites·10 claims
- 0740US12154917B2Semiconductor image sensorOPTOHUB CO LTD·Filed 2020·Granted Nov 26, 2024·0 cites·4 claims
- 0836US5034955ASuperluminescent diodeOKI ELECTRIC IND CO LTD·Filed 1989·Granted Jul 23, 1991·4 cites·10 claims
- 0934US6470038B2Compound semiconductor light emitting device and process for producing the sameOKI ELECTRIC IND CO LTD·Filed 1998·Granted Oct 22, 2002·5 cites·7 claims
- 1033US5828085ALight emitting diode having light-emitting and light-absorbing regionsOKI ELECTRIC IND CO LTD·Filed 1997·Granted Oct 27, 1998·4 cites·5 claims
- 1130US6008066AMethod of manufacturing a light emitting diode to vary band gap energy of active layerOKI ELECTRIC IND CO LTD·Filed 1998·Granted Dec 28, 1999·2 cites·3 claims
- 1229US6083813AMethod for forming a compound semiconductor device using a buffer layer over a corrugated surfaceOKI ELECTRIC IND CO LTD·Filed 1998·Granted Jul 4, 2000·0 cites·8 claims
- 1328US6570189B1Semiconductor device and method of manufacturing the sameOKI ELECTRIC IND CO LTD·Filed 1999·Granted May 27, 2003·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →