P

Inventor

FUKAGAWA TSUYOSHI

JP5 patents
⚠️ This page may combine multiple inventors who share the name “FUKAGAWA TSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOKAI OPTICAL CO LTD

3 patents
US7926939B2Apr 19, 2011

Spectacle lens and spectacle

TOKAI OPTICAL CO LTD25 citations89
US8908275B2Dec 9, 2014

Optical product and spectacle plastic lens

TOKAI OPTICAL CO LTD3 citations61
US9022561B2May 5, 2015

Plastic optical product and plastic lens for spectacles

TOKAI OPTICAL CO LTD1 citations49

FUKAGAWA TSUYOSHI

2 patents
US8746880B2Jun 10, 2014

Optical product and eyeglass plastic lens

FUKAGAWA TSUYOSHI16 citations79
US8746878B2Jun 10, 2014

Optical member, plastic lens for eyeglasses, and method for manufacturing the same

FUKAGAWA TSUYOSHI0 citations47