Inventor · disambiguated record
Tetsuo Sekiwa
Also filed as: SEKIWA TETSUO
4 granted patents·21 citations·filing 1974–1994
72Inventor score
Top patents by PatentIndex Score
4 records- 0145US3951700AMethod of manufacturing a gallium phosphide light-emitting deviceTOKYO SHIBAURA ELECTRIC CO·Filed 1974·Granted Apr 20, 1976·6 cites·3 claims
- 0245US3935039AMethod of manufacturing a green light-emitting gallium phosphide deviceTOKYO SHIBAURA ELECTRIC CO·Filed 1974·Granted Jan 27, 1976·6 cites·7 claims
- 0332US5172195ADouble heterostructure GaAlAs 610-640 nm LEDTOSHIBA KK·Filed 1991·Granted Dec 15, 1992·6 cites·33 claims
- 0425US5432359ALight emitting device with AlAs mixed crystal ratiosTOSHIBA KK·Filed 1994·Granted Jul 11, 1995·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →