Inventor · disambiguated record
Masahiko Kawata
Also filed as: KAWATA MASAHIKO · MORIOKA MAKOTO
8 granted patents·135 citations·filing 1977–1993
88Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0177US4212021ALight emitting devicesHITACHI LTD·Filed 1979·Granted Jul 8, 1980·30 cites·10 claims
- 0267US5025751ASolid film growth apparatusHITACHI LTD·Filed 1989·Granted Jun 25, 1991·16 cites·26 claims
- 0360US4122486ASemiconductor light-emitting elementHITACHI LTD·Filed 1977·Granted Oct 24, 1978·12 cites·10 claims
- 0457US4740819APhoto semiconductor deviceHITACHI LTD·Filed 1986·Granted Apr 26, 1988·17 cites·6 claims
- 0549US5381027ASemiconductor device having a heterojunction and a two dimensional gas as an active layerHITACHI LTD·Filed 1993·Granted Jan 10, 1995·18 cites·18 claims
- 0648US5296733AHetero junction bipolar transistor with improved electrode wiring contact regionHITACHI LTD·Filed 1990·Granted Mar 22, 1994·14 cites·27 claims
- 0745US5668402ASemiconductor deviceHITACHI LTD·Filed 1993·Granted Sep 16, 1997·15 cites·19 claims
- 0843US5258631ASemiconductor device having a two-dimensional electron gas as an active layerHITACHI LTD·Filed 1992·Granted Nov 2, 1993·13 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →