Inventor · disambiguated record
Tatsuo Niwa
Also filed as: NIWA TATSUO
10 granted patents·2 pending applications·604 citations·filing 1980–2015
91Inventor score
Top patents by PatentIndex Score
12 records- 0196US4652090ADispersed iridium based complementary electrochromic deviceNIPPON KOGAKU KK·Filed 1985·Granted Mar 24, 1987·224 cites·22 claims
- 0294US4991951AEyeglass frame for electrooptical lensesNIKON CORP·Filed 1990·Granted Feb 12, 1991·223 cites·8 claims
- 0383US4824221AElectrochromic deviceNIKON CORP·Filed 1988·Granted Apr 25, 1989·54 cites·8 claims
- 0479US4350414AAll solid state electrochromic deviceNIPPON KOGAKU KK·Filed 1980·Granted Sep 21, 1982·42 cites·5 claims
- 0570US5011582AMethod for producing electrochromic device with application of AC voltage between the electrode layersNIKON CORP·Filed 1990·Granted Apr 30, 1991·39 cites·17 claims
- 0667US9196778B2Light concentrating optical element, light concentrating device, photovoltaic power generation device and photothermal conversion deviceNIKON CORP·Filed 2012·Granted Nov 24, 2015·1 cites·36 claims
- 0753US9046279B2Light condensing device, photovoltaic power generation device and photo-thermal conversion deviceNIKON CORP·Filed 2014·Granted Jun 2, 2015·0 cites·13 claims
- 0847US5641597ACircuit forming method and apparatus thereforNIKON CORP·Filed 1995·Granted Jun 24, 1997·8 cites·8 claims
- 0944US4433901AAll solid type electrochromic display elementNIPPON KOGAKU KK·Filed 1981·Granted Feb 28, 1984·11 cites·4 claims
- 1035US5532984AHigh resolution read-only magneto-optical disk and method and apparatus for reproducing information therefromNIKON CORP·Filed 1993·Granted Jul 2, 1996·2 cites·31 claims
- 1131US2015307960A1Magnesium refining apparatus and magnesium refining methodNIKON CORP·Filed 2015·Application pending·0 cites
- 1229US2015307963A1Magnesium refining apparatus and magnesium refining methodNIKON CORP·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →