Inventor

UESAKA KATSUMI

JP24 patents

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

UESAKA KATSUMI

SUMITOMO ELECTRIC INDUSTRIES

Distortion generating circuit

Signal detecting circuit apparatus

Optical receiver

Laser driver with selectable output impedance

Optical receiver for an optical communication

Semiconductor laser device driving circuit

Optical modulator

System to control wavelength and method to control wavelength

Driver circuit for semiconductor laser diode

Optical device

Optical device

Wavelength monitor

Laser driver circuit

Wavelength-tunable light source and wavelength control method for the same

Optical transmitter emitting light with narrowed linewidth

Laser apparatus and method to re-tune emission wavelength tunable LD

Optical transmitter with a shunt driving configuration and a load transistor operated in common gate mode

Optical transmitter implementing wavelength tunable diode

UESAKA KATSUMI

Optical modulation apparatus, method for controlling optical modulation apparatus

Method to manufacture semiconductor device with optical grating

Optical receiver with trans-impedance responding in bit-by-bit to input signal

MOTO AKIHIRO

Driver circuit for semiconductor laser diode driven in differential mode

YAMAJI KAZUHIRO

Optical modulator

SEKI MORIHIRO

Optical modulation apparatus, method for controlling optical modulator, and control device for optical modulator