| Patent | Date |
|---|
Radio Communications System and Method
App 20220150732 - TAKEI; Ken | 2022-05-12 |
Transmitter
Grant 11,081,811 - Takei August 3, 2 | 2021-08-03 |
Wireless communication system and wireless surveillance control system
Grant 10,749,273 - Takei A | 2020-08-18 |
Transmitter and receiver
Grant 10,630,370 - Takei | 2020-04-21 |
Transmitter
App 20200067204 - TAKEI; Ken | 2020-02-27 |
Radio communication system and radio monitoring control system
Grant 10,574,332 - Takei Feb | 2020-02-25 |
Highly-secure wireless communication system
Grant 10,470,039 - Takei No | 2019-11-05 |
Rotationally polarized antenna, transmission/reception module, elevator control system, and substation control system
Grant 10,347,989 - Takei July 9, 2 | 2019-07-09 |
Wireless Communication System and Wireless Surveillance Control System
App 20190173199 - TAKEI; Ken | 2019-06-06 |
Wireless communication system having a transmission unit that transmits or receives based on a detected timing
Grant 10,305,200 - Takei | 2019-05-28 |
Radio Communication System and Radio Monitoring Control System
App 20190132041 - TAKEI; Ken | 2019-05-02 |
Wireless communication system, shielded yard wireless communication system, and wireless communication device
Grant 10,277,351 - Takei | 2019-04-30 |
Wireless system, and elevator control system and substation monitoring system including same
Grant 10,158,395 - Takei Dec | 2018-12-18 |
Wireless communication system and system using same
Grant 10,153,824 - Takei Dec | 2018-12-11 |
Wireless communication system
Grant 10,148,338 - Takei De | 2018-12-04 |
Radio communication system, elevator control system using same, and substation facility monitoring system
Grant 10,149,180 - Takei De | 2018-12-04 |
Radio Communication System, Elevator Control System Using Same, and Substation Facility Monitoring System
App 20180262923 - TAKEI; Ken | 2018-09-13 |
Transmitter And Receiver
App 20180262260 - Takei; Ken | 2018-09-13 |
Wireless Communication System, Shielded Yard Wireless Communication System, And Wireless Communication Device
App 20180152258 - TAKEI; Ken | 2018-05-31 |
Wireless System, And Elevator Control System And Substation Monitoring System Including Same
App 20180152221 - TAKEI; Ken | 2018-05-31 |
Radio power transmission apparatus and radio power transmission system
Grant 9,899,875 - Takei February 20, 2 | 2018-02-20 |
Wireless Communication System and System Using Same
App 20170310379 - TAKEI; Ken | 2017-10-26 |
Wireless communication system
Grant 9,762,296 - Takei September 12, 2 | 2017-09-12 |
Wireless communication system and wireless communication receiver
Grant 9,705,588 - Aono , et al. July 11, 2 | 2017-07-11 |
Radio apparatus
Grant 9,590,663 - Aono , et al. March 7, 2 | 2017-03-07 |
Wireless Communication System
App 20170062951 - TAKEI; Ken | 2017-03-02 |
Radio Apparatus
App 20160336973 - AONO; Masahiro ; et al. | 2016-11-17 |
Rotationally Polarized Antenna, Transmission/Reception Module, Elevator Control System, and Substation Control System
App 20160336655 - TAKEI; Ken | 2016-11-17 |
Radio communication system, transmitter, receiver, elevator control system, and substation facility monitoring system
Grant 9,450,652 - Takei September 20, 2 | 2016-09-20 |
Wireless Communication System and Wireless Communication Receiver
App 20160261335 - AONO; Masahiro ; et al. | 2016-09-08 |
Highly-Secure Wireless Communication System
App 20160255499 - TAKEI; Ken | 2016-09-01 |
Polarization-angle-division Diversity Wireless Transmitter, Wireless Receiver, And Wireless Communication System
App 20160226571 - TAKEI; Ken | 2016-08-04 |
Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system
Grant 9,407,349 - Takei August 2, 2 | 2016-08-02 |
Wireless Communication System
App 20160182185 - TAKEI; Ken | 2016-06-23 |
Radio Communication System, Transmitter, Receiver, Elevator Control System, And Substation Facility Monitoring System
App 20150381242 - TAKEI; Ken | 2015-12-31 |
Wireless transmitter, wireless receiver, wireless communication system, elevator control system, and transformer equipment control system
Grant 9,219,506 - Takei December 22, 2 | 2015-12-22 |
Signal processing device and method by use of wireless communication
Grant 9,215,047 - Yamazaki , et al. December 15, 2 | 2015-12-15 |
Radio Power Transmission Apparatus and Radio Power Transmission System
App 20150200568 - Takei; Ken | 2015-07-16 |
Signal Processing Device and Method by Use of Wireless Communication
App 20150172009 - Yamazaki; Ryota ; et al. | 2015-06-18 |
Frequency converter and wireless repeater using the same, and wireless repeating system using the same
Grant 8,964,817 - Takei February 24, 2 | 2015-02-24 |
Low/high frequency shared leakage antenna, base station apparatus and close-range detection system using the antenna
Grant 8,811,278 - Takei , et al. August 19, 2 | 2014-08-19 |
Wireless Transmitter, Wireless Receiver, Wireless Communication System, Elevator Control System, and Transformer Equipment Control System
App 20140112409 - Takei; Ken | 2014-04-24 |
Polarization-angle-division Diversity Wireless Transmitter, Wireless Receiver, And Wireless Communication System
App 20130336417 - Takei; Ken | 2013-12-19 |
Control of transmitter peak power and duty ratio in a wireless system to maintain average transmitter power and increase communication range
Grant 8,542,091 - Takei September 24, 2 | 2013-09-24 |
Communication system by electrostatic coupling and electromagnetic induction
Grant 8,380,124 - Takei , et al. February 19, 2 | 2013-02-19 |
Frequency variable power transmitter and receiver in Fresnel region and power transmitting system
Grant 8,334,619 - Takei December 18, 2 | 2012-12-18 |
Planar array antenna and communication terminal and wireless module using the same
Grant 8,248,311 - Takei August 21, 2 | 2012-08-21 |
Wireless Power Transmission System And Wireless Power Transmission Apparatus
App 20120200158 - Takei; Ken | 2012-08-09 |
Image display device
Grant 8,233,105 - Kageyama , et al. July 31, 2 | 2012-07-31 |
Frequency Converter and Wireless Repeater Using the Same, and Wireless Repeating System Using the Same
App 20120147931 - TAKEI; Ken | 2012-06-14 |
Image display device
Grant 8,184,252 - Furuta , et al. May 22, 2 | 2012-05-22 |
Tunable receiving apparatus and method therefor
Grant 8,073,415 - Sugiyama , et al. December 6, 2 | 2011-12-06 |
Plasma Processing Apparatus Using Transmission Electrode
App 20110253313 - SUZUKI; Keizo ; et al. | 2011-10-20 |
Low/high Frequency Shared Leakage Antenna, Base Station Apparatus And Close-range Detection System Using The Antenna
App 20110199920 - Takei; Ken ; et al. | 2011-08-18 |
Frequency Variable Power Transmitter And Receiver In Fresnel Region And Power Transmitting System
App 20110140537 - Takei; Ken | 2011-06-16 |
Wireless monitoring system and child station therefor
Grant 7,917,093 - Takei March 29, 2 | 2011-03-29 |
RFID tag
Grant 7,902,986 - Takei March 8, 2 | 2011-03-08 |
Antenna, and wireless module, wireless unit and wireless apparatus having the antenna
Grant 7,817,094 - Adachi , et al. October 19, 2 | 2010-10-19 |
Skeleton equalizing antenna, RFID tag and RFID system using the same
Grant 7,791,542 - Takei September 7, 2 | 2010-09-07 |
Antenna and method of manufacturing the same, and portable wireless terminal using the same
Grant 7,755,545 - Takei , et al. July 13, 2 | 2010-07-13 |
Antenna, and wireless module, wireless unit and wireless apparatus having the antenna
Grant 7,714,787 - Adachi , et al. May 11, 2 | 2010-05-11 |
Planar Array Antenna And Communication Terminal And Wireless Module Using The Same
App 20100079345 - TAKEI; Ken | 2010-04-01 |
Distributed phase type circular polarized wave antenna and high-frequency module using the same
Grant 7,663,550 - Takei , et al. February 16, 2 | 2010-02-16 |
Image Display Device
App 20100026950 - FURUTA; Futoshi ; et al. | 2010-02-04 |
Distributed phase type circular polarized receiving module and portable radio communication device
Grant 7,633,444 - Takei , et al. December 15, 2 | 2009-12-15 |
Antenna module, radio device and mobile radio terminal
Grant 7,602,346 - Takei , et al. October 13, 2 | 2009-10-13 |
Image Display Device
App 20090251453 - Kageyama; Hiroshi ; et al. | 2009-10-08 |
Leakage loss line type circularly-polarized wave antenna and high-frequency module
Grant 7,586,443 - Takei September 8, 2 | 2009-09-08 |
Communication system by electrostatic coupling and electromagnetic induction
App 20090197529 - Takei; Ken ; et al. | 2009-08-06 |
Power transmission circuit
App 20090184950 - Furuta; Futoshi ; et al. | 2009-07-23 |
Capacitive coupling-type transmitting and receiving circuits for information signal
App 20090153445 - Furuta; Futoshi ; et al. | 2009-06-18 |
Small size thin type antenna, multilayered substrate, high frequency module, and radio terminal mounting them
Grant 7,541,979 - Takei , et al. June 2, 2 | 2009-06-02 |
RFID tag
App 20090091456 - Takei; Ken | 2009-04-09 |
Circular polarized wave antenna and method for designing same
Grant 7,486,238 - Ogawa , et al. February 3, 2 | 2009-02-03 |
Distributed phase type circular polarized wave antenna, high-frequency module using the same, and portable radio communication terminal using the same
Grant 7,460,068 - Takei , et al. December 2, 2 | 2008-12-02 |
Transmitter And Wireless System Using The Same
App 20080266060 - TAKEI; Ken | 2008-10-30 |
Skeleton equalizing antenna, RFID tag and RFID system using the same
App 20080266183 - Takei; Ken | 2008-10-30 |
Antenna, and wireless module, wireless unit and wireless apparatus having the antenna
App 20080258984 - Adachi; Satoshi ; et al. | 2008-10-23 |
Circular polarized antenna, antenna design simulator, and wireless module with the antenna
Grant 7,394,426 - Ogawa , et al. July 1, 2 | 2008-07-01 |
Small multi-mode antenna and RF module using the same
Grant 7,336,239 - Takei February 26, 2 | 2008-02-26 |
Circular polarized wave antenna and method for designing same
App 20080012772 - Ogawa; Tomoyuki ; et al. | 2008-01-17 |
Wireless monitoring system and child station therefor
App 20070298716 - Takei; Ken | 2007-12-27 |
Tunable receiving apparatus and method therefor
App 20070213024 - Sugiyama; Takahiro ; et al. | 2007-09-13 |
Antenna and method of manufacturing the same, and portable wireless terminal using the same
App 20070139270 - Takei; Ken ; et al. | 2007-06-21 |
Antenna module, radio device and mobile radio terminal
App 20070080870 - Takei; Ken ; et al. | 2007-04-12 |
System and method for detecting biological and chemical material
Grant 7,157,050 - Yazawa , et al. January 2, 2 | 2007-01-02 |
Antenna, and wireless module, wireless unit and wireless apparatus having the antenna
App 20060279469 - Adachi; Satoshi ; et al. | 2006-12-14 |
Distributed phase type circular polarized wave antenna, high-frequency module using the same, and portable radio communication terminal using the same
App 20060267845 - Takei; Ken ; et al. | 2006-11-30 |
Small multi-mode antenna and rf module using the same
App 20060262028 - Takei; Ken | 2006-11-23 |
Distributed phase type circular polarized receiving module and portable radio communication device
App 20060256022 - Takei; Ken ; et al. | 2006-11-16 |
Distributed phase type circular polarized wave antenna and high-frequency module using the same
App 20060197706 - Takei; Ken ; et al. | 2006-09-07 |
Leakage loss line type circularly-polarized wave antenna and high-frequency module
App 20060181467 - Takei; Ken | 2006-08-17 |
Circular polarized antenna, antenna design simulator, and wireless module with the antenna
App 20060181460 - Ogawa; Tomoyuki ; et al. | 2006-08-17 |
Small size thin type antenna, multilayered substrate, high frequency module, and radio terminal mounting them
App 20060097932 - Takei; Ken ; et al. | 2006-05-11 |
Pattern extraction computational algorithm, design program and simulator
App 20060095238 - Ikegaya; Morihiko ; et al. | 2006-05-04 |
Science and engineering simulator using numerical analysis of simultaneous linear equations
App 20060085173 - Takei; Ken ; et al. | 2006-04-20 |
Antenna, method for manufacturing the antenna, and communication apparatus including the antenna
Grant 7,015,862 - Takei , et al. March 21, 2 | 2006-03-21 |
Communication terminal, automobile communication terminal, and automobile
Grant 6,952,565 - Takeda , et al. October 4, 2 | 2005-10-04 |
Antenna and wireless apparatus
Grant 6,937,200 - Takei August 30, 2 | 2005-08-30 |
Antenna, method for manufacturing the antenna, and communication apparatus including the antenna
App 20050099337 - Takei, Ken ; et al. | 2005-05-12 |
Base station transmitting data spread with a plurality of slots respective to a plurality of radio terminals and codes, and a cellular system thereof
App 20050078628 - Suzuki, Toshiro ; et al. | 2005-04-14 |
Base station transmitting data spread with a plurality of slots respective to a plurality of radio terminals and codes, and a cellular system thereof
App 20050078621 - Suzuki, Toshiro ; et al. | 2005-04-14 |
Wireless communication method and system using beam direction-variable antenna
Grant 6,879,845 - Suzuki , et al. April 12, 2 | 2005-04-12 |
Antenna and wireless apparatus
App 20050012674 - Takei, Ken | 2005-01-20 |
Communication system
App 20040233043 - Yazawa, Yoshiaki ; et al. | 2004-11-25 |
System and method for detecting biological and chemical material
App 20040121354 - Yazawa, Yoshiaki ; et al. | 2004-06-24 |
Multi-carrier RF amplifiers
Grant 6,750,707 - Takei , et al. June 15, 2 | 2004-06-15 |
Wireless handset
Grant 6,653,977 - Okabe , et al. November 25, 2 | 2003-11-25 |
Wireless handset
Grant 6,466,774 - Okabe , et al. October 15, 2 | 2002-10-15 |
Wireless handset using a slot antenna
Grant 6,462,714 - Okabe , et al. October 8, 2 | 2002-10-08 |
Antenna element and radio communication apparatus
Grant 6,452,554 - Aoyama , et al. September 17, 2 | 2002-09-17 |
RF amplifier
App 20020089373 - Takei, Ken ; et al. | 2002-07-11 |
Wireless communication method and system using beam direction-variable antenna
App 20020068590 - Suzuki, Toshiro ; et al. | 2002-06-06 |
Traveling wave power combiner and radio base station
Grant 6,396,349 - Takei , et al. May 28, 2 | 2002-05-28 |
RF amplifier with plural combiners
Grant 6,384,680 - Takei , et al. May 7, 2 | 2002-05-07 |
Base station transmitting data spread with a plurality of slots respective to a plurality of radio terminals and codes, and a cellular system thereof
App 20020037016 - Suzuki, Toshiro ; et al. | 2002-03-28 |
Wireless handset using a slot antenna
App 20020027528 - Okabe, Hiroshi ; et al. | 2002-03-07 |
Traveling wave power combiner and radio base station
App 20010019289 - Takei, Ken ; et al. | 2001-09-06 |
System for transmitting/receiving a signal having a carrier frequency band for a radio base station
Grant 6,233,434 - Takei May 15, 2 | 2001-05-15 |
Wireless handset
Grant 6,198,441 - Okabe , et al. March 6, 2 | 2001-03-06 |
Tunable slot antenna with capacitively coupled slot island conductor for precise impedance adjustment
Grant 6,188,369 - Okabe , et al. February 13, 2 | 2001-02-13 |
Tunable slot antenna with capacitively coupled slot island conductor for precise impedance adjustment
Grant 6,034,644 - Okabe , et al. March 7, 2 | 2000-03-07 |
Handy-phone with shielded high and low frequency circuits and planar antenna
Grant 6,031,494 - Okabe , et al. February 29, 2 | 2000-02-29 |
Tunable slot antenna
Grant 6,028,561 - Takei February 22, 2 | 2000-02-22 |
TEM slot array antenna
Grant 5,977,924 - Takei , et al. November 2, 1 | 1999-11-02 |
Coaxial resonant slot antenna, a method of manufacturing thereof, and a radio terminal
Grant 5,914,693 - Takei , et al. June 22, 1 | 1999-06-22 |
Output-controlled power amplifier, radio communication terminal and radio communication base station
Grant 5,854,971 - Nagoya , et al. December 29, 1 | 1998-12-29 |
Small antenna for portable radio phone
Grant 5,585,807 - Takei December 17, 1 | 1996-12-17 |
Antenna system including a plurality of meander conductors for a portable radio apparatus
Grant 5,559,524 - Takei , et al. September 24, 1 | 1996-09-24 |
Antenna for radio apparatus
Grant 5,298,910 - Takei , et al. March 29, 1 | 1994-03-29 |
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