Inventor
YOSHINO KEN-ICHIRO
JP48 patents
⚠️ This page may combine multiple inventors who share the name “YOSHINO KEN-ICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOPCON CORP
28 patentsUS5907907AJun 1, 1999
Laser leveling system
TOPCON CORP133 citations98
US5819424AOct 13, 1998
Laser leveling device
TOPCON CORP74 citations96
US7626690B2Dec 1, 2009
Laser scanner
TOPCON CORP45 citations93
US5946087AAug 31, 1999
Laser survey instrument
TOPCON CORP55 citations93
US5612781AMar 18, 1997
Object reflector detection system
TOPCON CORP25 citations93
US11402506B2Aug 2, 2022
Laser measuring method and laser measuring instrument
TOPCON CORP14 citations86
US5995233ANov 30, 1999
Surveying system
TOPCON CORP19 citations83
US6337473B2Jan 8, 2002
Beam position detector having a photodetection unit
TOPCON CORP13 citations74
US5808771ASep 15, 1998
Laser rotating and irradiating system
TOPCON CORP14 citations74
US5774211AJun 30, 1998
Laser leveling system for setting pipes
TOPCON CORP12 citations74
US11181639B2Nov 23, 2021
Measurement device, measurement method, and control program for measurement device
TOPCON CORP2 citations73
US10816665B2Oct 27, 2020
Surveying system
TOPCON CORP2 citations73
US9921062B2Mar 20, 2018
Surveying instrument
TOPCON CORP4 citations73
US9909871B2Mar 6, 2018
Surveying instrument
TOPCON CORP5 citations73
US10634791B2Apr 28, 2020
Laser scanner system and registration method of point cloud data
TOPCON CORP2 citations72
US11536567B2Dec 27, 2022
Surveying instrument
TOPCON CORP2 citations71
US11143505B2Oct 12, 2021
Surveying instrument
TOPCON CORP1 citations63
US9243897B2Jan 26, 2016
Three-dimensional measuring device and three-dimensional measuring system
TOPCON CORP2 citations63
US7522268B2Apr 21, 2009
Distance measuring device
TOPCON CORP5 citations63
US5867263AFeb 2, 1999
Laser survey instrument having a reflection light blocking means
TOPCON CORP6 citations63
US11733357B2Aug 22, 2023
3-dimensional measuring device
TOPCON CORP0 citations61
US11520015B2Dec 6, 2022
3-dimensional measuring device
TOPCON CORP0 citations61
US10935636B2Mar 2, 2021
Laser scanner
TOPCON CORP0 citations52
US11435457B2Sep 6, 2022
Surveying instrument
TOPCON CORP0 citations51
US10416291B2Sep 17, 2019
Three-dimensional measurement device
TOPCON CORP0 citations42
US6693703B2Feb 17, 2004
Distance measuring device and method for adjusting photodetection unit of distance measuring device
TOPCON CORP0 citations42
US10823563B2Nov 3, 2020
Laser scanner system
TOPCON CORP0 citations41
US10488196B2Nov 26, 2019
Laser scanner system and registration method of point cloud data
TOPCON CORP0 citations41
NEC CORP
15 patentsUS11909647B2Feb 20, 2024
Encryption key generation
NEC CORP2 citations73
US11271661B2Mar 8, 2022
Drive-timing adjustment method and device for a photon detector, and optical communication system
NEC CORP5 citations73
US10735328B2Aug 4, 2020
Information communication system, information communication method and device
NEC CORP3 citations73
US11502831B2Nov 15, 2022
Transmitting device, receiving device, quantum key distribution method, and quantum key distribution program for quantum key distribution system
NEC CORP2 citations72
US12124364B2Oct 22, 2024
Random number quality management method and apparatus
NEC CORP1 citations63
US12407613B2Sep 2, 2025
Encryption key generation
NEC CORP0 citations62
US12254286B2Mar 18, 2025
Random number supply method and device
NEC CORP0 citations62
US12519623B2Jan 6, 2026
Reception device, quantum key distribution system, and method for detecting quantum signal
NEC CORP0 citations59
US12489614B2Dec 2, 2025
Photon detection device, reception device, quantum key distribution system, and method for detecting quantum signal
NEC CORP0 citations59
US12549258B2Feb 10, 2026
Communication device including nested modulator and bias control method for nested modulator
NEC CORP0 citations52
US12113578B2Oct 8, 2024
Optical sender and method for deciding modulation timing correctness
NEC CORP0 citations52
US11546065B2Jan 3, 2023
Optical modulation method and device using nested optical modulator
NEC CORP0 citations52
US9989407B2Jun 5, 2018
Optical receiver and control method thereof
NEC CORP0 citations52
US9584319B2Feb 28, 2017
Optical receiving device in optical communication system, control method and device of photon detector, and dark count evaluation method of photon detector
NEC CORP1 citations52
US12549341B2Feb 10, 2026
Reception device, quantum key distribution system, and method for detecting quantum signal
NEC CORP0 citations48