Inventor

ANAN KEIZO

JP3 patents

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

NIPPON OILS & FATS CO LTD

2 patents

US4933406AJun 12, 1990

Contact lens article made of silicon- and fluorine-containing resin

NIPPON OILS & FATS CO LTD16 citations71

US5883152AMar 16, 1999

Contact lens

NIPPON OILS & FATS CO LTD9 citations69

AMAYA NAOYUKI

1 patent

US4948854AAug 14, 1990

Transparent optical article and process for preparing same

AMAYA NAOYUKI9 citations63