Inventor · disambiguated record
Junichi Umezaki
Also filed as: UMEZAKI JUNICHI
10 granted patents·788 citations·filing 1995–2002
94Inventor score
Files withTOYODA GOSEI KK10
Top patents by PatentIndex Score
10 records- 0196US6040588ASemiconductor light-emitting deviceTOYODA GOSEI KK·Filed 1997·Granted Mar 21, 2000·112 cites·10 claims
- 0295US6420733B2Semiconductor light-emitting device and manufacturing method thereofTOYODA GOSEI KK·Filed 2001·Granted Jul 16, 2002·80 cites·7 claims
- 0395US6326236B1Semiconductor light-emitting device and manufacturing method thereofTOYODA GOSEI KK·Filed 2000·Granted Dec 4, 2001·78 cites·2 claims
- 0494US6541293B2Semiconductor light-emitting device and manufacturing method thereofTOYODA GOSEI KK·Filed 2002·Granted Apr 1, 2003·63 cites·4 claims
- 0591US5862167ALight-emitting semiconductor device using gallium nitride compoundTOYODA GOSEI KK·Filed 1997·Granted Jan 19, 1999·177 cites·5 claims
- 0688US6008539AElectrodes for p-type group III nitride compound semiconductorsTOYODA GOSEI KK·Filed 1996·Granted Dec 28, 1999·76 cites·14 claims
- 0787US6821800B2Semiconductor light-emitting device and manufacturing method thereofTOYODA GOSEI KK·Filed 2002·Granted Nov 23, 2004·29 cites·4 claims
- 0880US5753939ALight-emitting semiconductor device using a Group III nitride compound and having a contact layer upon which an electrode is formedTOYODA GOSEI KK·Filed 1997·Granted May 19, 1998·80 cites·32 claims
- 0976US6121127AMethods and devices related to electrodes for p-type group III nitride compound semiconductorsTOYODA GOSEI KK·Filed 1999·Granted Sep 19, 2000·38 cites·16 claims
- 1074US5587593ALight-emitting semiconductor device using group III nitrogen compoundTOYODA GOSEI KK·Filed 1995·Granted Dec 24, 1996·55 cites·1 claims
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