Inventor · disambiguated record
Keizo Anan
Also filed as: ANAN KEIZO
3 granted patents·34 citations·filing 1989–1997
70Inventor score
Top patents by PatentIndex Score
3 records- 0153US4933406AContact lens article made of silicon- and fluorine-containing resinNIPPON OILS & FATS CO LTD·Filed 1989·Granted Jun 12, 1990·16 cites·12 claims
- 0245US5883152AContact lensNIPPON OILS & FATS CO LTD·Filed 1997·Granted Mar 16, 1999·9 cites·5 claims
- 0343US4948854ATransparent optical article and process for preparing sameAMAYA NAOYUKI·Filed 1989·Granted Aug 14, 1990·9 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →