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Keigo Hasegawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Verification system and verification server
Patent number
11,967,174
Issue date
Apr 23, 2024
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Machine-learning model fraud detection system and fraud detection m...
Patent number
11,544,352
Issue date
Jan 3, 2023
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Radio communication sytem and access control method
Patent number
10,939,253
Issue date
Mar 2, 2021
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system, mobile communication apparatus, and...
Patent number
10,164,702
Issue date
Dec 25, 2018
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for adjusting transmission timing in multiple access system
Patent number
10,070,406
Issue date
Sep 4, 2018
Hitachi Kokusai Electric, Inc.
Masayuki Takekawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multichannel wireless communication system, base station, and metho...
Patent number
9,781,719
Issue date
Oct 3, 2017
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system
Patent number
9,743,412
Issue date
Aug 22, 2017
Hitachi Kokusai Electric, Inc.
Kei Yanagisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Selecting white space frequency based on preamble cycle length
Patent number
9,713,171
Issue date
Jul 18, 2017
Hitachi Kokusai Electric Inc.
Kei Yanagisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system
Patent number
9,661,644
Issue date
May 23, 2017
Hitachi Kokusai Electric, Inc.
Masayuki Takekawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Relaying operation between base stations using white spaces in wire...
Patent number
9,609,523
Issue date
Mar 28, 2017
Hitachi Kokusai Electric, Inc.
Masayuki Takekawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication terminal
Patent number
9,572,076
Issue date
Feb 14, 2017
Hitachi Kokusai Electric, Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system
Patent number
9,467,867
Issue date
Oct 11, 2016
Hitachi Kokusai Electric, Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system
Patent number
9,438,329
Issue date
Sep 6, 2016
Hitachi Kokusai Electric Inc.
Keat Beng Toh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for selecting unlicensed frequency band using hyb...
Patent number
9,319,888
Issue date
Apr 19, 2016
Hitachi Kokusai Electric, Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system
Patent number
9,294,928
Issue date
Mar 22, 2016
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
B61 - RAILWAYS
Information
Patent Grant
Multichannel wireless communication system, base station, and chann...
Patent number
9,185,686
Issue date
Nov 10, 2015
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Heterogeneous-systems coexistence method and wireless gateway appar...
Patent number
9,049,726
Issue date
Jun 2, 2015
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system and receiving device
Patent number
8,971,277
Issue date
Mar 3, 2015
Hitachi Kokusai Electric Inc.
Masayuki Takekawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and device for processing lens
Patent number
8,162,719
Issue date
Apr 24, 2012
Hoya Corporation
Keigo Hasegawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
IMAGE ANALYSIS SYSTEM AN UPDATE METHOD FOR MACHINE LEARNING MODEL
Publication number
20230386188
Publication date
Nov 30, 2023
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ABNORMALITY DETECTION DEVICE, ABNORMALITY DETECTION METHOD, AND ABN...
Publication number
20230342903
Publication date
Oct 26, 2023
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MONITORING SYSTEM, CAMERA, ANALYZING DEVICE, AND AI MODEL GENERATIN...
Publication number
20230306711
Publication date
Sep 28, 2023
Hitachi Kokusai Electric Inc.
Hiroto SASAO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGE ANALYSIS SYSTEM, IMAGE ANALYSIS METHOD, AND IMAGE ANALYSIS PR...
Publication number
20230125890
Publication date
Apr 27, 2023
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SPECTACLE LENS AND METHOD FOR MANUFACTURING SAME
Publication number
20220244567
Publication date
Aug 4, 2022
Hoya Lens Thailand Ltd.
Hua QI
G02 - OPTICS
Information
Patent Application
VERIFICATION SYSTEM AND VERIFICATION SERVER
Publication number
20210192183
Publication date
Jun 24, 2021
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
RADIO COMMUNICATION SYSYTEM AND ACCESS CONTROL METHOD
Publication number
20200382913
Publication date
Dec 3, 2020
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MACHINE-LEARNING MODEL FRAUD DETECTION SYSTEM AND FRAUD DETECTION M...
Publication number
20200082056
Publication date
Mar 12, 2020
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM, MOBILE COMMUNICATION APPARATUS, AND...
Publication number
20180049110
Publication date
Feb 15, 2018
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR ADJUSTING TRANSMISSION TIMING IN MULTIPLE ACCESS SYSTEM
Publication number
20170013582
Publication date
Jan 12, 2017
Hitachi Kokusai Electric Inc.
Masayuki TAKEKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION TERMINAL
Publication number
20160309381
Publication date
Oct 20, 2016
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM
Publication number
20160277938
Publication date
Sep 22, 2016
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
Publication number
20160227584
Publication date
Aug 4, 2016
Hitachi Kokusai Electric Inc.
Kei YANAGISAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM
Publication number
20160227418
Publication date
Aug 4, 2016
Hitachi Kokusai Electric Inc.
Masayuki TAKEKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM
Publication number
20160135196
Publication date
May 12, 2016
Hitachi Kokusai Electric Inc.
Masayuki TAKEKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
Publication number
20160007358
Publication date
Jan 7, 2016
Hitachi Kokusai Electric Inc.
Kei YANAGISAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM
Publication number
20150311970
Publication date
Oct 29, 2015
Hitachi Kokusai Electric Inc.
Keat Beng Toh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTICHANNEL WIRELESS COMMUNICATION SYSTEM, BASE STATION, AND METHO...
Publication number
20150257152
Publication date
Sep 10, 2015
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM
Publication number
20140348124
Publication date
Nov 27, 2014
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
B61 - RAILWAYS
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM
Publication number
20140112215
Publication date
Apr 24, 2014
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
HETEROGENEOUS-SYSTEMS COEXISTENCE METHOD AND WIRELESS GATEWAY APPAR...
Publication number
20130235771
Publication date
Sep 12, 2013
Hitachi Kokusai Electric Inc.
Keigo HASEGAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTICHANNEL WIRELESS COMMUNICATION SYSTEM, BASE STATION, AND CHANN...
Publication number
20130183989
Publication date
Jul 18, 2013
Hitachi Kokusai Electric Inc.
Keigo Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND RECEIVING DEVICE
Publication number
20130182660
Publication date
Jul 18, 2013
Hitachi Kokusai Electric Inc.
Masayuki Takekawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD OF MANUFACTURING SPECTACLE LENS
Publication number
20100209603
Publication date
Aug 19, 2010
Keigo Hasegawa
B24 - GRINDING POLISHING
Information
Patent Application
METHOD AND DEVICE FOR PROCESSING LENS
Publication number
20100112907
Publication date
May 6, 2010
HOYA COPORATION
Keigo Hasegawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF MANUFACTURING SPECTACLE LENS AND SPECTACLE LENS
Publication number
20090202706
Publication date
Aug 13, 2009
Masahisa Kousaka
G02 - OPTICS