Inventor

FUKAGAWA TAKASHI

JP43 patents

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

FUKAGAWA TAKASHI

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Dielectric resonator antenna for a mobile communication

Directivity control antenna apparatus for shaping the radiation pattern of antenna of base station in mobile communication system in accordance with estimated directions or positions of mobile stations with which communication is in progress

Radio-wave arrival-direction estimating apparatus and directional variable transceiver

Radio-wave arrival-direction estimating apparatus and directional variable transceiver

Direction of arrival estimation apparatus and variable directional signal receiving and transmitting apparatus using the same

Adaptive array antenna system and mobile telecommunications system using the same

Radio communication device and arrival direction estimation method

Radio-wave arrival-direction estimating apparatus and directional variable transceiver

Dielectric resonator antenna for a mobile communication

Adaptive antenna base station apparatus

Path search circuit, radio receiver and radio transmitter, utilizing a directional beam

Radio wave arrival direction estimating antenna apparatus

Direction estimating apparatus, directivity controlling antenna apparatus, and direction estimating method

Adaptive antenna radio communication device

Method of calculating exciting coefficients for circular array antenna and radio unit utilizing the same

Direction of arrival estimator and direction of arrival estimation method

Radio communication apparatus

Adaptive array antenna system and mobile telecommunications system using the same

Radio communication device and arrival direction estimation method

FUJITSU LTD

Network monitoring system, monitoring device, and monitored device

Supervisory apparatus for transmission lines

Network device provided with ethernet interface

Ring node apparatus

SDH transmission apparatus and signal transmission method

FUKAGAWA TAKASHI

Base station device and distance measuring method

Radio arrival direction estimation device and radio arrival direction estimation method

Wireless distance measurement system and wireless terminal

Frame loss measurement method, system, and apparatus

MIMO communication device

PANASONIC CORP

Radio base station apparatus

Adaptive antenna radio communication device

Wireless distance measurement system and wireless distance measurement method

Wireless communication apparatus

YUDA YASUAKI

Wireless communication apparatus

Wireless communication apparatus

MUKAI HIROHITO

Radio terminal device, radio base station device, radio ranging system, and radio ranging method

Radio positioning system and coordinate configuring method

KISIGAMI TAKAAKI

Radio communication device and arrival direction estimation method

Radio communication device and arrival direction estimation method

(unassigned)

Dielectric resonator antenna for a mobile communication

NAKAGAWA YOICHI

Array signal processing device

KISHIGAMI TAKAAKI

Adaptive antenna radio communication device

FUJITSU TELECOM NETWORKS LTD

Frame transmission system