Inventor
TAKEKAWA MASAYUKI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “TAKEKAWA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI INT ELECTRIC INC
13 patentsUS9467867B1Oct 11, 2016
Wireless communication system
HITACHI INT ELECTRIC INC7 citations82
US9743412B2Aug 22, 2017
Wireless communication system
HITACHI INT ELECTRIC INC5 citations71
US9609523B2Mar 28, 2017
Relaying operation between base stations using white spaces in wireless access system
HITACHI INT ELECTRIC INC2 citations71
US9781719B2Oct 3, 2017
Multichannel wireless communication system, base station, and method for using channel
HITACHI INT ELECTRIC INC7 citations69
US9713171B2Jul 18, 2017
Selecting white space frequency based on preamble cycle length
HITACHI INT ELECTRIC INC0 citations51
US12114248B2Oct 8, 2024
Radio communication system and radio communication method
HITACHI INT ELECTRIC INC0 citations50
US11653297B2May 16, 2023
Wireless communication system, wireless communication method, and mobile vehicle
HITACHI INT ELECTRIC INC0 citations50
US9438329B2Sep 6, 2016
Wireless communication system
HITACHI INT ELECTRIC INC0 citations49
US9185686B2Nov 10, 2015
Multichannel wireless communication system, base station, and channel using method
HITACHI INT ELECTRIC INC1 citations49
US10374688B2Aug 6, 2019
Wireless communication system and wireless communication method
HITACHI INT ELECTRIC INC0 citations40
US9661644B2May 23, 2017
Wireless communication system
HITACHI INT ELECTRIC INC0 citations40
US8971277B2Mar 3, 2015
Wireless communication system and receiving device
HITACHI INT ELECTRIC INC0 citations40
US9049726B2Jun 2, 2015
Heterogeneous-systems coexistence method and wireless gateway apparatus
HITACHI INT ELECTRIC INC0 citations39