Inventor · disambiguated record
Yoshinori Oana
Also filed as: OANA YOSHINORI
8 granted patents·93 citations·filing 1978–1996
86Inventor score
Top patents by PatentIndex Score
8 records- 0174US4796989AOpthalmological measuring apparatusTOKYO OPTICAL·Filed 1987·Granted Jan 10, 1989·30 cites·4 claims
- 0257US5719668ALens-meter for measuring optical characteristics of optical lensTOPCON CORP·Filed 1996·Granted Feb 17, 1998·21 cites·3 claims
- 0341US4453808AApparatus for detecting the position of a patient's eye in ophthalmologic instrumentsTOKYO OPTICAL·Filed 1982·Granted Jun 12, 1984·16 cites·5 claims
- 0440US4293199AApparatus for detecting astigmatic axes and measuring refractive powersTOKYO OPTICAL·Filed 1978·Granted Oct 6, 1981·14 cites·4 claims
- 0533US4408847ARefractory power measuring deviceTOKYO OPTICAL·Filed 1980·Granted Oct 11, 1983·4 cites·5 claims
- 0630US4810085ACorneal configuration measuring apparatusTOKYO OPTICAL·Filed 1987·Granted Mar 7, 1989·4 cites·14 claims
- 0728US4299455AVision testing instrumentTOKYO OPTICAL·Filed 1980·Granted Nov 10, 1981·4 cites·9 claims
- 0826US4371237AApparatus for measuring curvatures of a spherical surfaceTOKYO OPTICAL·Filed 1980·Granted Feb 1, 1983·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →