Ken Takei

Person

Kanagawa-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Transmitter
- Patent number 11,081,811
- Issue date Aug 3, 2021
- Hitachi, Ltd.
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless communication system and wireless surveillance control system
- Patent number 10,749,273
- Issue date Aug 18, 2020
- Hitachi, Ltd.
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transmitter and receiver
- Patent number 10,630,370
- Issue date Apr 21, 2020
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio communication system and radio monitoring control system
- Patent number 10,574,332
- Issue date Feb 25, 2020
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Highly-secure wireless communication system
- Patent number 10,470,039
- Issue date Nov 5, 2019
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Rotationally polarized antenna, transmission/reception module, elev...
- Patent number 10,347,989
- Issue date Jul 9, 2019
- Hitachi, Ltd.
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless communication system having a transmission unit that trans...
- Patent number 10,305,200
- Issue date May 28, 2019
- Hitachi, Ltd.
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless communication system, shielded yard wireless communication...
- Patent number 10,277,351
- Issue date Apr 30, 2019
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless system, and elevator control system and substation monitor...
- Patent number 10,158,395
- Issue date Dec 18, 2018
- Hitachi, Ltd.
- Ken Takei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Wireless communication system and system using same
- Patent number 10,153,824
- Issue date Dec 11, 2018
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio communication system, elevator control system using same, and...
- Patent number 10,149,180
- Issue date Dec 4, 2018
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communication system
- Patent number 10,148,338
- Issue date Dec 4, 2018
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio power transmission apparatus and radio power transmission system
- Patent number 9,899,875
- Issue date Feb 20, 2018
- Hitachi, Ltd.
- Ken Takei
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Wireless communication system
- Patent number 9,762,296
- Issue date Sep 12, 2017
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization-angle-division diversity wireless transmitter, wireles...
- Patent number 9,722,687
- Issue date Aug 1, 2017
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communication system and wireless communication receiver
- Patent number 9,705,588
- Issue date Jul 11, 2017
- Hitachi, Ltd.
- Masahiro Aono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio apparatus
- Patent number 9,590,663
- Issue date Mar 7, 2017
- Hitachi, Ltd.
- Masahiro Aono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio communication system, transmitter, receiver, elevator control...
- Patent number 9,450,652
- Issue date Sep 20, 2016
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization-angle-division diversity wireless transmitter, wireles...
- Patent number 9,407,349
- Issue date Aug 2, 2016
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless transmitter, wireless receiver, wireless communication sys...
- Patent number 9,219,506
- Issue date Dec 22, 2015
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal processing device and method by use of wireless communication
- Patent number 9,215,047
- Issue date Dec 15, 2015
- Hitachi, Ltd.
- Ryota Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency converter and wireless repeater using the same, and wirel...
- Patent number 8,964,817
- Issue date Feb 24, 2015
- Hitachi Metals, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low/high frequency shared leakage antenna, base station apparatus a...
- Patent number 8,811,278
- Issue date Aug 19, 2014
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control of transmitter peak power and duty ratio in a wireless syst...
- Patent number 8,542,091
- Issue date Sep 24, 2013
- Hitachi, Ltd.
- Ken Takei
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Communication system by electrostatic coupling and electromagnetic...
- Patent number 8,380,124
- Issue date Feb 19, 2013
- Hitachi, Displays, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency variable power transmitter and receiver in Fresnel region...
- Patent number 8,334,619
- Issue date Dec 18, 2012
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Planar array antenna and communication terminal and wireless module...
- Patent number 8,248,311
- Issue date Aug 21, 2012
- Hitachi, Ltd.
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image display device
- Patent number 8,233,105
- Issue date Jul 31, 2012
- Hitachi Displays, Ltd.
- Hiroshi Kageyama
- G02 - OPTICS
Information Patent Grant
Image display device
- Patent number 8,184,252
- Issue date May 22, 2012
- Hitachi Displays, Ltd.
- Futoshi Furuta
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Tunable receiving apparatus and method therefor
- Patent number 8,073,415
- Issue date Dec 6, 2011
- Hitachi Cable, Ltd.
- Takahiro Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Radio Communications System and Method
- Publication number 20220150732
- Publication date May 12, 2022
- Hitachi, Ltd
- Ken TAKEI
- G01 - MEASURING TESTING
Information Patent Application
TRANSMITTER
- Publication number 20200067204
- Publication date Feb 27, 2020
- Hitachi, Ltd
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wireless Communication System and Wireless Surveillance Control System
- Publication number 20190173199
- Publication date Jun 6, 2019
- Hitachi, Ltd
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Radio Communication System and Radio Monitoring Control System
- Publication number 20190132041
- Publication date May 2, 2019
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Radio Communication System, Elevator Control System Using Same, and...
- Publication number 20180262923
- Publication date Sep 13, 2018
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMITTER AND RECEIVER
- Publication number 20180262260
- Publication date Sep 13, 2018
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WIRELESS COMMUNICATION SYSTEM, SHIELDED YARD WIRELESS COMMUNICATION...
- Publication number 20180152258
- Publication date May 31, 2018
- Hitachi, Ltd
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIRELESS SYSTEM, AND ELEVATOR CONTROL SYSTEM AND SUBSTATION MONITOR...
- Publication number 20180152221
- Publication date May 31, 2018
- Hitachi, Ltd
- Ken TAKEI
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Wireless Communication System and System Using Same
- Publication number 20170310379
- Publication date Oct 26, 2017
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless Communication System
- Publication number 20170062951
- Publication date Mar 2, 2017
- Hitachi, Ltd
- Ken TAKEI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Rotationally Polarized Antenna, Transmission/Reception Module, Elev...
- Publication number 20160336655
- Publication date Nov 17, 2016
- Hitachi, Ltd
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RADIO APPARATUS
- Publication number 20160336973
- Publication date Nov 17, 2016
- Hitachi, Ltd
- Masahiro AONO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless Communication System and Wireless Communication Receiver
- Publication number 20160261335
- Publication date Sep 8, 2016
- Hitachi, Ltd
- Masahiro AONO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Highly-Secure Wireless Communication System
- Publication number 20160255499
- Publication date Sep 1, 2016
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POLARIZATION-ANGLE-DIVISION DIVERSITY WIRELESS TRANSMITTER, WIRELES...
- Publication number 20160226571
- Publication date Aug 4, 2016
- Hitachi, Ltd
- Ken TAKEI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless Communication System
- Publication number 20160182185
- Publication date Jun 23, 2016
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RADIO COMMUNICATION SYSTEM, TRANSMITTER, RECEIVER, ELEVATOR CONTROL...
- Publication number 20150381242
- Publication date Dec 31, 2015
- Hitachi, Ltd
- Ken TAKEI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Radio Power Transmission Apparatus and Radio Power Transmission System
- Publication number 20150200568
- Publication date Jul 16, 2015
- Hitachi, Ltd
- Ken Takei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Signal Processing Device and Method by Use of Wireless Communication
- Publication number 20150172009
- Publication date Jun 18, 2015
- Hitachi, Ltd.
- Ryota Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless Transmitter, Wireless Receiver, Wireless Communication Sys...
- Publication number 20140112409
- Publication date Apr 24, 2014
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POLARIZATION-ANGLE-DIVISION DIVERSITY WIRELESS TRANSMITTER, WIRELES...
- Publication number 20130336417
- Publication date Dec 19, 2013
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WIRELESS POWER TRANSMISSION SYSTEM AND WIRELESS POWER TRANSMISSION...
- Publication number 20120200158
- Publication date Aug 9, 2012
- Hitachi, Ltd
- Ken Takei
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Frequency Converter and Wireless Repeater Using the Same, and Wirel...
- Publication number 20120147931
- Publication date Jun 14, 2012
- Hitachi Cable, Ltd.
- Ken TAKEI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PLASMA PROCESSING APPARATUS USING TRANSMISSION ELECTRODE
- Publication number 20110253313
- Publication date Oct 20, 2011
- Hitachi High-Technologies Corporation
- Keizo SUZUKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LOW/HIGH FREQUENCY SHARED LEAKAGE ANTENNA, BASE STATION APPARATUS A...
- Publication number 20110199920
- Publication date Aug 18, 2011
- Hitachi, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY VARIABLE POWER TRANSMITTER AND RECEIVER IN FRESNEL REGION...
- Publication number 20110140537
- Publication date Jun 16, 2011
- Hitachi, Ltd
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PLANAR ARRAY ANTENNA AND COMMUNICATION TERMINAL AND WIRELESS MODULE...
- Publication number 20100079345
- Publication date Apr 1, 2010
- Hitachi, Ltd
- Ken Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IMAGE DISPLAY DEVICE
- Publication number 20100026950
- Publication date Feb 4, 2010
- Hitachi Displays, Ltd.
- Futoshi FURUTA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
IMAGE DISPLAY DEVICE
- Publication number 20090251453
- Publication date Oct 8, 2009
- Hiroshi Kageyama
- G02 - OPTICS
Information Patent Application
Communication system by electrostatic coupling and electromagnetic...
- Publication number 20090197529
- Publication date Aug 6, 2009
- Hitachi Displays, Ltd.
- Ken Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Person

Patents Grantslast 30 patents

Transmitter

Wireless communication system and wireless surveillance control system

Transmitter and receiver

Radio communication system and radio monitoring control system

Highly-secure wireless communication system

Rotationally polarized antenna, transmission/reception module, elev...

Wireless communication system having a transmission unit that trans...

Wireless communication system, shielded yard wireless communication...

Wireless system, and elevator control system and substation monitor...

Wireless communication system and system using same

Radio communication system, elevator control system using same, and...

Wireless communication system

Radio power transmission apparatus and radio power transmission system

Wireless communication system

Polarization-angle-division diversity wireless transmitter, wireles...

Wireless communication system and wireless communication receiver

Radio apparatus

Radio communication system, transmitter, receiver, elevator control...

Polarization-angle-division diversity wireless transmitter, wireles...

Wireless transmitter, wireless receiver, wireless communication sys...

Signal processing device and method by use of wireless communication

Frequency converter and wireless repeater using the same, and wirel...

Low/high frequency shared leakage antenna, base station apparatus a...

Control of transmitter peak power and duty ratio in a wireless syst...

Communication system by electrostatic coupling and electromagnetic...

Frequency variable power transmitter and receiver in Fresnel region...

Planar array antenna and communication terminal and wireless module...

Image display device

Image display device

Tunable receiving apparatus and method therefor

Patents Applicationslast 30 patents

Radio Communications System and Method

TRANSMITTER

Wireless Communication System and Wireless Surveillance Control System

Radio Communication System and Radio Monitoring Control System

Radio Communication System, Elevator Control System Using Same, and...

TRANSMITTER AND RECEIVER

WIRELESS COMMUNICATION SYSTEM, SHIELDED YARD WIRELESS COMMUNICATION...

WIRELESS SYSTEM, AND ELEVATOR CONTROL SYSTEM AND SUBSTATION MONITOR...

Wireless Communication System and System Using Same

Wireless Communication System

Rotationally Polarized Antenna, Transmission/Reception Module, Elev...

RADIO APPARATUS

Wireless Communication System and Wireless Communication Receiver

Highly-Secure Wireless Communication System

POLARIZATION-ANGLE-DIVISION DIVERSITY WIRELESS TRANSMITTER, WIRELES...

Wireless Communication System

RADIO COMMUNICATION SYSTEM, TRANSMITTER, RECEIVER, ELEVATOR CONTROL...

Radio Power Transmission Apparatus and Radio Power Transmission System

Signal Processing Device and Method by Use of Wireless Communication

Wireless Transmitter, Wireless Receiver, Wireless Communication Sys...

POLARIZATION-ANGLE-DIVISION DIVERSITY WIRELESS TRANSMITTER, WIRELES...

WIRELESS POWER TRANSMISSION SYSTEM AND WIRELESS POWER TRANSMISSION...

Frequency Converter and Wireless Repeater Using the Same, and Wirel...

PLASMA PROCESSING APPARATUS USING TRANSMISSION ELECTRODE

LOW/HIGH FREQUENCY SHARED LEAKAGE ANTENNA, BASE STATION APPARATUS A...

FREQUENCY VARIABLE POWER TRANSMITTER AND RECEIVER IN FRESNEL REGION...

PLANAR ARRAY ANTENNA AND COMMUNICATION TERMINAL AND WIRELESS MODULE...

IMAGE DISPLAY DEVICE

IMAGE DISPLAY DEVICE

Communication system by electrostatic coupling and electromagnetic...