Inventor

KAWAKITA YASUMASA

JP20 patents

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

KAWAKITA YASUMASA

FURUKAWA ELECTRIC CO LTD

Wavelength tunable laser device and laser module

Surface emitting laser element and method of fabricating the same

Semiconductor laser device, diffraction grating structure, and diffraction grating

Reflection filter device and wavelength-tunable laser device

Surface emitting laser element array

Semiconductor optical device

Electronic device, surface emitting laser, surface emitting laser array, light source, optical module

Vertical cavity surface emitting laser element, vertical cavity surface emitting laser array element, vertical cavity surface emitting laser device, light source device, and optical module

Optical interconnection system

Optical functional device and laser device

Optical waveguide structure

Wavelength-tunable laser device

Semiconductor device

Surface emitting laser element and method of fabricating the same

Vertical-cavity surface emitting laser

SHIMIZU HITOSHI

Laser device, method of manufacturing the same, laser device array, light source and light module

Surface emitting laser, light source, and optical module

KAWAKITA YASUMASA

Vertical cavity surface emitting laser element, vertical cavity surface emitting laser array element, vertical cavity surface emitting laser device, light source device, and optical module

Surface emitting laser

SUZUKI TOSHIHITO

Vertical light emitting device and manufacturing method