Inventor · disambiguated record
Hiroyuki Sazawa
Also filed as: SAZAWA HIROYUKI
6 granted patents·9 pending applications·16 citations·filing 2002–2016
75Inventor score
Top patents by PatentIndex Score
15 records- 0179US9755040B2Semiconductor wafer, method of producing semiconductor wafer and electronic deviceSUMITOMO CHEMICAL CO·Filed 2015·Granted Sep 5, 2017·3 cites·14 claims
- 0266US7750351B2Epitaxial substrate for field effect transistorSUMITOMO CHEMICAL CO·Filed 2006·Granted Jul 6, 2010·9 cites·8 claims
- 0365US8350292B2Gallium nitride epitaxial crystal, method for production thereof, and field effect transistorSUMITOMO CHEMICAL CO·Filed 2008·Granted Jan 8, 2013·2 cites·13 claims
- 0461US7951685B2Method for manufacturing semiconductor epitaxial crystal substrateSUMITOMO CHEMICAL CO·Filed 2007·Granted May 31, 2011·1 cites·8 claims
- 0560US10340375B2Epitaxial substrate for field effect transistorHATA MASAHIKO·Filed 2008·Granted Jul 2, 2019·1 cites·9 claims
- 0642US2012086044A1Light emitting device and method of producing light emitting deviceHATA MASAHIKO·Filed 2011·Application pending·0 cites
- 0742US2011042719A1Semiconductor device and method of manufacturing a semiconductor deviceSUMITOMO CHEMICAL CO·Filed 2009·Application pending·0 cites
- 0842US2011108885A1Semiconductor device and method of manufacturing a semiconductor deviceSUMITOMO CHEMICAL CO·Filed 2009·Application pending·0 cites
- 0941US2010207137A1Semiconductor device, semiconductor device manufacturing method, high carrier mobility transistor and light emitting deviceSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 1038US2012280275A1Semiconductor wafer, electronic device, and method for producing semiconductor waferHATA MASAHIKO·Filed 2012·Application pending·0 cites
- 1138US2011012110A1Semiconductor field effect transistor and method for fabricating the sameSUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 1233US2003080331A13-5 Group compound semiconductor and semiconductor deviceSUMITOMO CHEMICAL CO·Filed 2002·Application pending·0 cites
- 1331US2016149000A1Semiconductor wafer and method of producing semiconductor waferSUMITOMO CHEMICAL CO·Filed 2016·Application pending·0 cites
- 1430US9214342B2Method for producing compound semiconductor crystal, method for producing electronic device, and semiconductor waferSAZAWA HIROYUKI·Filed 2012·Granted Dec 15, 2015·0 cites·15 claims
- 1528US2012292789A1Semiconductor wafer and method of producing the sameSAZAWA HIROYUKI·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →