Inventor

RYUUGOU TADAHIKO

JP2 patents

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

MITSUBISHI ELECTRIC CORP

1 patent

US6726859B2Apr 27, 2004

Fresnel lens, screen, image display device, lens mold manufacturing method and lens manufacturing method

MITSUBISHI ELECTRIC CORP58 citations94

DAINIPPON PRINTING CO LTD

1 patent

US7116476B2Oct 3, 2006

Fresnel lens, screen, image displaying device, lens forming mold manufacturing method and lens manufacturing method

DAINIPPON PRINTING CO LTD23 citations91