Inventor

YAMAMOTO KAZUNAO

JP22 patents

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

YAMAMOTO KAZUNAO

SHINKO ELECTRIC IND CO

Photoelectric composite substrate and method of manufacturing the same

Manufacturing method of optical waveguide, optical waveguide and optical reception/transmission apparatus

Optical waveguide and method of manufacturing the same, and method of manufacturing optical/electrical hybrid substrate

Optical waveguide device and method of manufacturing the same

Optical waveguide device, and optical communication apparatus

Optical waveguide having an optical transmission direction changing part

Substrate with optical waveguide and optical communication device

Protrusion dam-protected reflecting metal films in a substrate-supported optical waveguide, and optical communication device

Optical waveguide device

Optical waveguide device

Optical waveguide device

Optical waveguide device

Optical waveguide and optical module

Method of forming optical waveguide

YAMAMOTO KAZUNAO

Two-layer optical waveguide and method of manufacturing the same

Optical waveguide and method of manufacturing the same, and optical waveguide device

Optoelectronic composite substrate and method of manufacturing the same

Manufacturing method of optical waveguide

YAMAMOTO TAKANORI

Optical waveguide device and method of manufacturing the same

Optical waveguide and method of manufacturing the same, and optical waveguide device

YONEKURA HIDEKI

Optical waveguide and method of manufacturing the same, and optical waveguide device

YANAGISAWA KENJI

Optical waveguide and method of manufacturing the same, and optical waveguide device