Inventor

YAMADA RYUJI

JP103 patents

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

YAMADA RYUJI

FUJI ELECTRIC CO LTD

Three-level inverter employing a bidirectional switch, and modular structure therefor

Power supply for output of various specifications

Power conversion circuit with a compensation circuit

AC-DC converter

AC-DC converter

Semiconductor device

Solar power generation system

Uninterruptible power supply system

AC-DC converter

DC power supply equipment

AC-DC converter

Uninterruptible power supply apparatus

Power supply device

Power conversion device, control method, and computer-readable medium

Switching control circuit and resonant converter

Switching control circuit, control circuit, and power supply circuit

Switching control circuit and power supply circuit

Snubber circuit and power conversion apparatus

Snubber circuit and power conversion apparatus

Drive signal generating circuit and power supply circuit

Drive signal generating circuit and power supply circuit for improving power factor thereof

Drive signal generating circuit and power supply circuit

Silicon carbide semiconductor device, method of manufacturing silicon carbide semiconductor device, and method of controlling silicon carbide semiconductor device

Power converting device

BROTHER IND LTD

Information recording medium having logical structured recording area

Device for processing recorded information and storage medium storing program for same

Color-conversion-table creating method

Image-forming device for correcting printing characteristics

Image processing apparatus that specifies edge pixel in target image using single-component image data

Image processing device and method for creating binary image data using a single set of dither matrices

Image-forming device with a density measuring unit

Image forming apparatus capable of preventing waste of developer

Video image edit device

Image processing apparatus that identifies character pixel in target image using first and second candidate character pixels

Image processing apparatus that specifies edge pixel in target image using single-component image data

Image processing apparatus that identifies character pixel in target image using first and second candidate character pixels

YAMADA RYUJI

Power conversion apparatus

Storage medium and control device

Image processing apparatus

Calibration system

Image processing device

Power supply device for use with selectable AC power supply voltage

MATSUSHITA ELECTRIC WORKS LTD

Massaging appliance

Lounger-type massage machine

ZAIDAN HOJIN SEKITAN GIJUTSU K

Double ranging drum cutter having load controller

Double ranging drum cutter having bedrock sensor based on video image processing system

MITSUI MIIKE MACHINERY CO LTD

Double ended ranging drum shearer and method of controlling working height in mining face in use of the same

Control method for winch of mining machinery

MINO KAZUAKI

Rectifier circuit

ONOZAWA YOSHIKI

Inkjet printer, printing method and ink dryer