Inventor · disambiguated record
Yoshikazu Nishiwaki
Also filed as: NISHIWAKI YOSHIKAZU
12 granted patents·429 citations·filing 1981–1989
93Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES12
Top patents by PatentIndex Score
12 records- 0195US4560249AMethod of forming diffraction gratings and optical branching filter elements produced therebySUMITOMO ELECTRIC INDUSTRIES·Filed 1983·Granted Dec 24, 1985·114 cites·8 claims
- 0290US4673241ADiffraction gratings and optical branching filter elementsSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted Jun 16, 1987·68 cites·6 claims
- 0385US5106584ACell selecting apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Apr 21, 1992·63 cites·8 claims
- 0480US4547072AOptical fiber gyroSUMITOMO ELECTRIC INDUSTRIES·Filed 1983·Granted Oct 15, 1985·33 cites·7 claims
- 0579US4517280AProcess for fabricating integrated opticsSUMITOMO ELECTRIC INDUSTRIES·Filed 1983·Granted May 14, 1985·34 cites·12 claims
- 0670US4569588ALight frequency change detecting method and apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 1983·Granted Feb 11, 1986·23 cites·13 claims
- 0770US4444462APicture image observation systemSUMITOMO ELECTRIC INDUSTRIES·Filed 1981·Granted Apr 24, 1984·25 cites·7 claims
- 0862US4729618AIntegrated optic circuitSUMITOMO ELECTRIC INDUSTRIES·Filed 1984·Granted Mar 8, 1988·21 cites·10 claims
- 0961US4685763ALight modulation deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1986·Granted Aug 11, 1987·23 cites·5 claims
- 1058US4616258ADevice for monitoring the interior of a conduitSUMITOMO ELECTRIC INDUSTRIES·Filed 1983·Granted Oct 7, 1986·15 cites·14 claims
- 1141US4508420AOptical systemSUMITOMO ELECTRIC INDUSTRIES·Filed 1982·Granted Apr 2, 1985·7 cites·16 claims
- 1232US4641913AOptical integrated circuit utilizing the piezoelectric and photoconductive properties of a substrateSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted Feb 10, 1987·3 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →