Inventor · disambiguated record
Kazuyuki Nagatsuma
Also filed as: NAGATSUMA KAZUYUKI
12 granted patents·222 citations·filing 1974–1990
92Inventor score
Top patents by PatentIndex Score
12 records- 0186US4581579AOptical magnetic-field measuring apparatus having improved temperature characteristicsHITACHI LTD·Filed 1983·Granted Apr 8, 1986·43 cites·8 claims
- 0284US4737015AOptical waveguide having a silicon oxi-nitride layerHITACHI CABLE·Filed 1984·Granted Apr 12, 1988·42 cites·17 claims
- 0384US4604577ATemperature-compensated magnetic field measuring instrumentHITACHI LTD·Filed 1983·Granted Aug 5, 1986·39 cites·23 claims
- 0475US4631402AOptical electric-field measuring apparatusHITACHI LTD·Filed 1984·Granted Dec 23, 1986·34 cites·15 claims
- 0565US4333842APiezoelectric single crystal and surface acoustic wave element employing the sameHITACHI LTD·Filed 1980·Granted Jun 8, 1982·14 cites·2 claims
- 0664US4490641AThree electrode piezoelectric ceramic resonatorHITACHI LTD·Filed 1981·Granted Dec 25, 1984·14 cites·16 claims
- 0742US4816890AOptoelectronic deviceHITACHI LTD·Filed 1986·Granted Mar 28, 1989·7 cites·15 claims
- 0842US4595853AApparatus for and method of determining properties of saw substratesHITACHI LTD·Filed 1983·Granted Jun 17, 1986·8 cites·19 claims
- 0941US4001127AProcess of preparing single crystals of strontium barium niobateAGENCY IND SCIENCE TECHN·Filed 1974·Granted Jan 4, 1977·4 cites·4 claims
- 1040US4570064AOptical D.C. electric-field measuring apparatus with optic sensing means exhibiting both electrooptic and photoelectric effectsHITACHI LTD·Filed 1983·Granted Feb 11, 1986·6 cites·16 claims
- 1139US5098851AFabricating a semiconductor photodetector by annealing to smooth the PN junctionHITACHI LTD·Filed 1990·Granted Mar 24, 1992·7 cites·18 claims
- 1238US4243541APiezoelectric ceramicsHITACHI LTD·Filed 1978·Granted Jan 6, 1981·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →