Inventor · disambiguated record
Masumi Hirotani
Also filed as: HIROTANI MASUMI
3 granted patents·1 pending application·20 citations·filing 1991–2023
63Inventor score
Top patents by PatentIndex Score
4 records- 0147US6570191B2Surface-light-emitting device including AlGalnP and AlGaAs multi-film reflecting layersDAIDO STEEL CO LTD·Filed 2001·Granted May 27, 2003·5 cites·2 claims
- 0244US5260589ASemiconductor device having reflecting layers made of varying unit semiconductorsYAMAUCHI NORIKATSU·Filed 1991·Granted Nov 9, 1993·15 cites·16 claims
- 0342US2025261563A1Magnetostrictive material, energy converter and method for manufacturing the same, and vibration power generatorUNIV TOHOKU·Filed 2023·Application pending·0 cites
- 0434US9595635B2Point source light-emitting diodeDAIDO STEEL CO LTD·Filed 2015·Granted Mar 14, 2017·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →