Inventor
YAMAGISHI AKIHIRO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGISHI AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
4 patentsUS6516186B1Feb 4, 2003
Image-rejection receiver
NIPPON TELEGRAPH & TELEPHONE30 citations91
US6188261B1Feb 13, 2001
Programmable delay generator and application circuits having said delay generator
NIPPON TELEGRAPH & TELEPHONE35 citations88
US7180341B2Feb 20, 2007
Variable division method and variable divider
NIPPON TELEGRAPH & TELEPHONE7 citations72
US6759912B2Jul 6, 2004
Phase locked loop
NIPPON TELEGRAPH & TELEPHONE10 citations71
NTT ELECTRONICS CORP
4 patentsUS11558114B2Jan 17, 2023
Optical transmission characteristics compensating method and optical transmission characteristics compensating system
NTT ELECTRONICS CORP1 citations57
US10396895B2Aug 27, 2019
Compensation coefficient calculation method
NTT ELECTRONICS CORP0 citations50
US11228366B2Jan 18, 2022
Optical transmission characteristics estimation method, optical transmission characteristics estimation system, and optical transmission characteristics compensation system
NTT ELECTRONICS CORP0 citations47
US10637569B2Apr 28, 2020
Optical transmission characteristic estimation method, optical transmission characteristic compensation method, optical transmission characteristic estimation system and optical transmission characteristic compensation system
NTT ELECTRONICS CORP0 citations40