Inventor

YASAKA HIROSHI

JP4 patents

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

NIPPON TELEGRAPH & TELEPHONE

2 patents

US5155737AOct 13, 1992

Semiconductor wavelength conversion device

NIPPON TELEGRAPH & TELEPHONE26 citations87

US5025448AJun 18, 1991

Method and apparatus for stabilizing frequency of semiconductor laser

NIPPON TELEGRAPH & TELEPHONE16 citations70

DENSO CORP

2 patents

US11539185B2Dec 27, 2022

Laser apparatus

DENSO CORP0 citations57

US11881677B2Jan 23, 2024

Laser light source

DENSO CORP0 citations46