Inventor

IIZUKA YUTAKA

JP19 patents

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

IIZUKA YUTAKA

NIPPON KOGAKU KK

Catadioptric telephoto lens

Lenses capable of close-up photography

Inverted Galilean finder

Focusing screen of a camera

Zoom lens comprising two groups of lenses

Viewfinder display in a single lens reflex camera

Zoom lens

Focus detecting optical device of a single lens reflex camera

Zoom lens system

Zoom lens for a projector

Albada finder device

Indicator device in an inverted Galilean finder

Focusing screen

SHARP KK

Image processing device of multifunctional type

Image processing device of multifunctional type

Computer apparatus having electrically rewritable nonvolatile memory, and nonvolatile semiconductor memory

NIPPON KAYAKU KK

Process for dyeing cellulose fibers of its union fibers with reactive triazinyl dye quaternized with nicotinic acid

Reactive disazo compound

Red copper complexes of disazo compounds containing triazine groups