Assignee
KOZU KAZUMA
JP·4 granted patents·21 citations·filing 2008–2015
Top patents by PatentIndex Score
4 records- 0177US8814353B2Method of compiling shape data of a spectacle lens, spectacle lens shape data compiling device and spectacle lensKOZU KAZUMA·Filed 2010·Granted Aug 26, 2014·8 cites·16 claims
- 0276US8100529B2Progressive-addition lensKOZU KAZUMA·Filed 2009·Granted Jan 24, 2012·13 cites·8 claims
- 0346US10302965B2Progressive addition lens, design method and manufacturing method therefor, and progressive addition lens manufacturing systemKOZU KAZUMA·Filed 2015·Granted May 28, 2019·0 cites·12 claims
- 0441US8285505B2Lens evaluation method, lens evaluation device, lens manufacturing method, and lens characteristic display methodKOZU KAZUMA·Filed 2008·Granted Oct 9, 2012·0 cites·10 claims
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