Inventor
KAWAI SHINGO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “KAWAI SHINGO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
10 patentsUS6172803B1Jan 9, 2001
Optical amplifier and transmission system using the same
NIPPON TELEGRAPH & TELEPHONE70 citations96
US6157025ADec 5, 2000
Disk shaped tunable optical filter
NIPPON TELEGRAPH & TELEPHONE76 citations95
US7127168B2Oct 24, 2006
Multi-wavelength optical modulation circuit and wavelength-division multiplexed optical signal transmitter
NIPPON TELEGRAPH & TELEPHONE31 citations92
US5764841AJun 9, 1998
Optical fiber transmission line, optical fiber transmission system and production method thereof, and optical fiber combining method
NIPPON TELEGRAPH & TELEPHONE21 citations92
US7460572B2Dec 2, 2008
Optical module and method for monitoring and controlling wavelengths
NIPPON TELEGRAPH & TELEPHONE9 citations81
US5986789ANov 16, 1999
Optical transmission line and optical transmission system
NIPPON TELEGRAPH & TELEPHONE14 citations74
US10965375B2Mar 30, 2021
Optical node device
NIPPON TELEGRAPH & TELEPHONE3 citations71
US7206510B2Apr 17, 2007
Ring network using multi-wavelength generator
NIPPON TELEGRAPH & TELEPHONE5 citations62
US11362753B2Jun 14, 2022
Optical node device
NIPPON TELEGRAPH & TELEPHONE0 citations51
US7869717B2Jan 11, 2011
Optical communication light source unit and wavelength monitoring control method
NIPPON TELEGRAPH & TELEPHONE1 citations50
NADEX CO LTD
7 patentsUS5440092AAug 8, 1995
Welding controller and/or pinching force controller
NADEX CO LTD23 citations92
US5483035AJan 9, 1996
System for and method of controlling resistance welder
NADEX CO LTD36 citations87
US6444942B1Sep 3, 2002
Welding control systems
NADEX CO LTD24 citations86
US6609033B1Aug 19, 2003
Field programmable welding controller
NADEX CO LTD11 citations73
US5471028ANov 28, 1995
Resistance welding machine
NADEX CO LTD11 citations73
US5347105ASep 13, 1994
Welding controller
NADEX CO LTD8 citations73
US6359566B2Mar 19, 2002
Welding machines
NADEX CO LTD6 citations62