Inventor

YAMAGUCHI KEIICHI

JP97 patents

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

YAMAGUCHI KEIICHI

TOSHIBA KK

Microwave transmitter/receiver module

Microwave semiconductor device having coplanar waveguide and micro-strip line

High frequency circuit using high output amplifier cell block and low output amplifier cell block

Voltage controlled oscillator, frequency synthesizer and communication apparatus

Amplifying device, transmitting device

Distortion compensator, distortion compensation method, and transmitter

Image control from composed composite image using HID signal conversion to source image coordinates

Wireless transmitter and amplifier

High frequency circuit using high output amplifier cell block and low output amplifier cell block

Portable type radio equipment

Power amplifier and radio communication device using the amplifier

Radio frequency circuit and communication system with power amplifier control

Modulated signal generating device and wireless device

Modulated signal generating device and wireless device

Doherty amplifier

Radio frequency circuit

Communication apparatus performing key feature extraction for cognitive radio system

Communicating apparatus, method of calculating set value of orthogonal error compensation and orthogonal error compensation program

Radio frequency circuit and communication system with power amplifier control

Power amplifier and radio communication device using the amplifier

Power amplifier and radio communication device using the amplifier

SEIKO EPSON CORP

Vibration type gyroscope and method for manufacturing vibration type gyroscope

Vibration element, manufacturing method of vibration element, physical quantity sensor, inertial measurement device, electronic apparatus, and vehicle

Vibration element, manufacturing method of vibration element, physical quantity sensor, inertial measurement device, electronic apparatus, and vehicle

Physical quantity detection vibrator element, physical quantity detection apparatus, electronic apparatus, and moving object

Vibrating reed, electronic device, and electronic apparatus

Vibration element, physical quantity sensor, inertial measurement unit, electronic apparatus, and vehicle

Vibrator device, electronic apparatus, and vehicle

Vibration device, angular velocity sensor, electronic device, and vehicle

Sensor element, sensor, electronic apparatus, and vehicle

Vibration element, vibrator, vibration device, electronic device and moving object

Vibrator element, vibrator, electronic device, electronic apparatus, and moving object

Vibrator element, method of manufacturing vibrator element, vibrator, electronic device, electronic apparatus and moving body

Method for manufacturing vibration element

Electronic device, electronic apparatus, and moving object

Vibration element and oscillator

Vibration element, manufacturing method of vibration element, physical quantity sensor, inertial measurement device, electronic apparatus, and vehicle

Vibrator device, electronic apparatus, and vehicle

Vibrator device

SANYO ELECTRIC CO

Semiconductor device with recess portion over pad electrode

Manufacturing method of semiconductor device with chamfering

Semiconductor device and manufacturing method thereof

Method of manufacturing semiconductor device with two-step etching of layer

NEC CORP

Superconducting mixer antenna array

SOFTARD IND CO LTD

Separator and unloading device

KATO TAKAYUKI

Doherty amplifier system and transmitter using the same

SYSMEX CORP

Apparatus and method for processing particle images and program product for same

YAMAOKA ATSUSHI

Distortion compensator apparatus, amplifier apparatus, transmitter, and method of compensating distortion

ISE KOTARO

Information processing server, remote control system, and remote control method using a tunnel to determine a service on another network and executing the service without using the tunnel

INT SUPERCONDUCTIVITY TECH

Superconducting device having a single junction structure appropriate for integration