Kei Yanagisawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wireless communication system and wireless communication method
- Patent number 10,374,688
- Issue date Aug 6, 2019
- Hitachi Kokusai Electric Inc.
- Kei Yanagisawa
- 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
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

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROVISION APPARATUS, SYSTEM, METHOD AND COMPUTER READAB...
- Publication number 20240346924
- Publication date Oct 17, 2024
- NEC Corporation
- Hiroaki AMINAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MANAGEMENT SYSTEM, MANAGEMENT APPARATUS, AND MANAGEMENT METHOD
- Publication number 20240340739
- Publication date Oct 10, 2024
- NEC Corporation
- Kosei Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WIRELESS COMMUNICATION CONTROL APPARATUS, WIRELESS COMMUNICATION SY...
- Publication number 20240322967
- Publication date Sep 26, 2024
- NEC Corporation
- Kei YANAGISAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION SYSTEM, RELAY DEVICE, AND RELAY METHOD
- Publication number 20240323757
- Publication date Sep 26, 2024
- NEC Corporation
- Kosei Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PARKING LOT GUIDANCE APPARATUS, SYSTEM, METHOD AND COMPUTER READABL...
- Publication number 20240310183
- Publication date Sep 19, 2024
- NEC Corporation
- Tetsuro HASEGAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROVIDING SYSTEM, INFORMATION PROVIDING METHOD AND PROG...
- Publication number 20240292187
- Publication date Aug 29, 2024
- NEC Corporation
- Kazuki OGATA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
TRAFFIC CONTROL APPARATUS, SYSTEM, METHOD, AND COMPUTER READABLE ME...
- Publication number 20240242603
- Publication date Jul 18, 2024
- NEC CORPORATION
- Hiroaki AMINAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMUNICATION TERMINAL, SIGNAL CONTROL APPARATUS, CONTROL METHOD FO...
- Publication number 20240196320
- Publication date Jun 13, 2024
- NEC Corporation
- Kazuki OGATA
- G08 - SIGNALLING
Information Patent Application
SIGNAL CONTROL SYSTEM, SIGNAL CONTROL METHOD, AND PROGRAM RECORDING...
- Publication number 20240185713
- Publication date Jun 6, 2024
- NEC Corporation
- Nobuyuki TOZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ROAD INSPECTION SYSTEM, MEASUREMENT VEHICLE, SERVER, ROAD INSPECTIO...
- Publication number 20240175680
- Publication date May 30, 2024
- NEC Corporation
- Kosei Kobayashi
- G01 - MEASURING TESTING
Information Patent Application
EVACUATION ROUTE GUIDANCE SYSTEM, EVACUATION ROUTE CREATION METHOD,...
- Publication number 20240175693
- Publication date May 30, 2024
- NEC Corportion
- Nobuyuki TOZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VEHICLE-MOUNTED APPARATUS, CONTROL SERVER, METHOD FOR COLLECTING ME...
- Publication number 20240179096
- Publication date May 30, 2024
- NEC Corporation
- Kosei KOBAYASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BOARDING ASSISTANCE SYSTEM, BOARDING ASSISTANCE METHOD, AND RECORDI...
- Publication number 20240169460
- Publication date May 23, 2024
- NEC Corporation
- Kosei KOBAYASHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PARKING MANAGEMENT APPARATUS, PARKING MANAGEMENT SYSTEM, PARKING MA...
- Publication number 20240169840
- Publication date May 23, 2024
- NEC Corporation
- Kazuki OGATA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
BOARDING SUPPORT SYSTEM, BOARDING SUPPORT METHOD AND PROGRAM RECORD...
- Publication number 20240169836
- Publication date May 23, 2024
- NEC Corporation
- Kosei KOBAYASHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROVIDING SYSTEM, INFORMATION PROVIDING METHOD AND PROG...
- Publication number 20240169723
- Publication date May 23, 2024
- NEC Corporation
- Hiroaki AMINAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD
- Publication number 20240163781
- Publication date May 16, 2024
- NEC Corporation
- Masaru YANAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PASSENGER INFORMATION COLLECTION SYSTEM, PASSENGER INFORMATION COLL...
- Publication number 20240161626
- Publication date May 16, 2024
- NEC Corporation
- Kei YANAGISAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC CURRENCY SYSTEM, ELECTRONIC CURRENCY VALUE DETERMINATION...
- Publication number 20240152979
- Publication date May 9, 2024
- NEC Corporation
- Yuki Tsuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, IN...
- Publication number 20240153010
- Publication date May 9, 2024
- NEC Corporatiom
- Tetsuro Hasegawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, IN...
- Publication number 20240153276
- Publication date May 9, 2024
- NEC Corporation
- Kei YANAGISAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SERVER, COMMUNICATION SYSTEM, AND METHOD
- Publication number 20240147203
- Publication date May 2, 2024
- NEC Corporation
- Kosei KOBAYASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CHARACTERISTIC INFORMATION GENERATING APPARATUS, SYSTEM, METHOD, AN...
- Publication number 20240144300
- Publication date May 2, 2024
- NEC Corporation
- Shintaro CHIKU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMUNICATION SYSTEM, COMMUNICATION CONTROL APPARATUS, COMMUNICATIO...
- Publication number 20240129849
- Publication date Apr 18, 2024
- NEC Corporation
- Hiroaki AMINAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NOTIFICATION DEVICE, NOTIFICATION SYSTEM, NOTIFICATION METHOD, AND...
- Publication number 20240127595
- Publication date Apr 18, 2024
- NEC Corporation
- Kosei KOBAYASHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, IN...
- Publication number 20240127350
- Publication date Apr 18, 2024
- NEC Corporation
- Tetsuro HASEGAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DATA COLLECTION APPARATUS, ONBOARD APPARATUS, DATA COLLECTION METHO...
- Publication number 20240096110
- Publication date Mar 21, 2024
- NEC Corporation
- Kazuki Ogata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ON-VEHICLE APPARATUS, ROAD SURFACE IMAGE TRANSMISSION METHOD, AND R...
- Publication number 20240092366
- Publication date Mar 21, 2024
- NEC Corporation
- Kazuki Ogata
- B60 - VEHICLES IN GENERAL
Information Patent Application
PARKING MANAGEMENT APPARATUS, PARKING MANAGEMENT SYSTEM, PARKING MA...
- Publication number 20240062257
- Publication date Feb 22, 2024
- NEC Corporation
- Kei YANAGISAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROVISION SYSTEM, METHOD FOR PROVIDING PASSENGER VEHICL...
- Publication number 20240054888
- Publication date Feb 15, 2024
- NEC Corporation
- Kazuki OGATA
- G08 - SIGNALLING

Kei Yanagisawa

Person

Patents Grantslast 30 patents

Wireless communication system and wireless communication method

Multichannel wireless communication system, base station, and metho...

Wireless communication system

Selecting white space frequency based on preamble cycle length

Wireless communication system

Relaying operation between base stations using white spaces in wire...

Heterogeneous-systems coexistence method and wireless gateway appar...

Patents Applicationslast 30 patents

INFORMATION PROVISION APPARATUS, SYSTEM, METHOD AND COMPUTER READAB...

MANAGEMENT SYSTEM, MANAGEMENT APPARATUS, AND MANAGEMENT METHOD

WIRELESS COMMUNICATION CONTROL APPARATUS, WIRELESS COMMUNICATION SY...

COMMUNICATION SYSTEM, RELAY DEVICE, AND RELAY METHOD

PARKING LOT GUIDANCE APPARATUS, SYSTEM, METHOD AND COMPUTER READABL...

INFORMATION PROVIDING SYSTEM, INFORMATION PROVIDING METHOD AND PROG...

TRAFFIC CONTROL APPARATUS, SYSTEM, METHOD, AND COMPUTER READABLE ME...

COMMUNICATION TERMINAL, SIGNAL CONTROL APPARATUS, CONTROL METHOD FO...

SIGNAL CONTROL SYSTEM, SIGNAL CONTROL METHOD, AND PROGRAM RECORDING...

ROAD INSPECTION SYSTEM, MEASUREMENT VEHICLE, SERVER, ROAD INSPECTIO...

EVACUATION ROUTE GUIDANCE SYSTEM, EVACUATION ROUTE CREATION METHOD,...

VEHICLE-MOUNTED APPARATUS, CONTROL SERVER, METHOD FOR COLLECTING ME...

BOARDING ASSISTANCE SYSTEM, BOARDING ASSISTANCE METHOD, AND RECORDI...

PARKING MANAGEMENT APPARATUS, PARKING MANAGEMENT SYSTEM, PARKING MA...

BOARDING SUPPORT SYSTEM, BOARDING SUPPORT METHOD AND PROGRAM RECORD...

INFORMATION PROVIDING SYSTEM, INFORMATION PROVIDING METHOD AND PROG...

COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD

PASSENGER INFORMATION COLLECTION SYSTEM, PASSENGER INFORMATION COLL...

ELECTRONIC CURRENCY SYSTEM, ELECTRONIC CURRENCY VALUE DETERMINATION...

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, IN...

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, IN...

SERVER, COMMUNICATION SYSTEM, AND METHOD

CHARACTERISTIC INFORMATION GENERATING APPARATUS, SYSTEM, METHOD, AN...

COMMUNICATION SYSTEM, COMMUNICATION CONTROL APPARATUS, COMMUNICATIO...

NOTIFICATION DEVICE, NOTIFICATION SYSTEM, NOTIFICATION METHOD, AND...

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, IN...

DATA COLLECTION APPARATUS, ONBOARD APPARATUS, DATA COLLECTION METHO...

ON-VEHICLE APPARATUS, ROAD SURFACE IMAGE TRANSMISSION METHOD, AND R...

PARKING MANAGEMENT APPARATUS, PARKING MANAGEMENT SYSTEM, PARKING MA...

INFORMATION PROVISION SYSTEM, METHOD FOR PROVIDING PASSENGER VEHICL...