Inventor · disambiguated record
Taketoshi Ishihara
Also filed as: ISHIHARA TAKETOSHI · KONISHI YOSHIKAZU
9 granted patents·70 citations·filing 1977–1986
87Inventor score
Top patents by PatentIndex Score
9 records- 0140US4293199AApparatus for detecting astigmatic axes and measuring refractive powersTOKYO OPTICAL·Filed 1978·Granted Oct 6, 1981·14 cites·4 claims
- 0239US4306778AEye refractmeters using infrared raysTOKYO OPTICAL·Filed 1979·Granted Dec 22, 1981·12 cites·4 claims
- 0339US4192582AOphthalmometerTOKYO OPTICAL·Filed 1978·Granted Mar 11, 1980·14 cites·4 claims
- 0433US4408847ARefractory power measuring deviceTOKYO OPTICAL·Filed 1980·Granted Oct 11, 1983·4 cites·5 claims
- 0531US4277150AEye refractmeterTOKYO OPTICAL·Filed 1978·Granted Jul 7, 1981·6 cites·13 claims
- 0630US4753527AVisual acuity testing apparatusKIGAKU KIKAI KK·Filed 1986·Granted Jun 28, 1988·14 cites·10 claims
- 0728US4299455AVision testing instrumentTOKYO OPTICAL·Filed 1980·Granted Nov 10, 1981·4 cites·9 claims
- 0826US4094592AOphthalmic examination chart projectorTOKYO OPTICAL·Filed 1977·Granted Jun 13, 1978·2 cites·6 claims
- 0919US4162852AMethod and device for measuring diopters of astigmatic lensesTOKYO OPTICAL·Filed 1977·Granted Jul 31, 1979·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →