Inventor
ISHIKAWA RYUSUKE
JP12 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA RYUSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DENSO CORP
8 patentsUS10369965B2Aug 6, 2019
Electronic key system, on-board device, and electronic key
DENSO CORP2 citations71
US9995061B2Jun 12, 2018
Smart entry system
DENSO CORP5 citations71
US10723315B2Jul 28, 2020
Electronic key system for vehicle, and portable device
DENSO CORP2 citations70
US8346090B2Jan 1, 2013
Infrared communication system, movable object, supply facility, and method for infrared communication in the same
DENSO CORP2 citations59
US11491953B2Nov 8, 2022
Mobile device and electronic key system for wireless communication with vehicle device
DENSO CORP0 citations49
US11256248B2Feb 22, 2022
Reception range varying system, vehicle control device, and portable device
DENSO CORP0 citations47
US12370978B2Jul 29, 2025
Electronic key system
DENSO CORP0 citations43
US9903985B2Feb 27, 2018
Infrared apparatus
DENSO CORP0 citations34