Inventor

OTAKA SHOJI

JP64 patents

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

OTAKA SHOJI

TOSHIBA KK

Frequency conversion circuit and radio communication apparatus with the same

Radio apparatus

Active array antenna system

Frequency converter and radio receiver using same

Frequency converter with nonlinear distortion cancellation

Variable gain amplifier device

Receiver

Variable gain circuit

Variable gain circuit

Radio apparatus adapted to remove image components from local oscillating signals

Frequency multiplier

Variable attenuator

Attenuation circuitry using gate current control of FET conduction to vary attenuation

Input/output circuit having the input buffer circuit being connected in parallel with two transistors with the same polarity

Radio apparatus

Generating device of trigger signal

MOS resistance controlling device and MOS attenuator

Frequency converter and radio communication apparatus

Mobility proportion current generator, and bias generator and amplifier using the same

Temperature compensation circuit and a variable gain amplification circuit

Frequency converter

Power transmitting apparatus, power receiving apparatus, control apparatus, and wireless power transfer system

Rectifier circuit and radio communication device using the same

Radio apparatus

Mixer device including an amplifier circuit

Amplifier circuit

Phase shifter and communication system using the phase shifter

Orthogonal signal generation system

Power transmitting apparatus, power receiving apparatus, control apparatus, and wireless power transfer system

Semiconductor integrated circuit and information processing apparatus

Amplifier and radio

Voltage to current converter

Radio apparatus

Amplifier circuit and communication device

Frequency converter having low supply voltage

Variable gain amplifier device

Image suppression filter circuit

Mobility proportion current generator, and bias generator and amplifier using the same

PLL circuit and radio communication apparatus

Rectification circuit and wireless communication apparatus using the same

Rectifier circuit and radio communication device using the same

OTAKA SHOJI

Wireless transmission apparatus using cartesian loop

Wireless communicatoin method and apparatus for reducing reception error by performing automatic gain control (AGC) based on a comparison between the received signal and a reference value

Radio transmitter using Cartesian loop

SAKAMOTO TAKAFUMI

Electronic system with AC-DC convertor controlled by received signal and AC-DC adaptor

Wireless communication device and wireless communication system

Remote controller, electrical apparatus and wireless controlling system for controlling the electrical apparatus to turn on at a startup time

TATEBAYASHI YOSHINAO

Assembled battery system and assembled battery protection device

KOGAWA TSUYOSHI

Wireless communication apparatus for suppressing interference while reducing transmission delay

UMEDA TOSHIYUKI

Oscillator and radio communication device