Inventor
IZUMI HIROTOMO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “IZUMI HIROTOMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
8 patentsUS7304798B2Dec 4, 2007
Spectroscopic apparatus
FUJITSU LTD133 citations97
US7171084B2Jan 30, 2007
Optical apparatus provided with demultiplexing function
FUJITSU LTD15 citations83
US10890822B2Jan 12, 2021
Mach-zehnder optical modulator
FUJITSU LTD4 citations69
US6836580B2Dec 28, 2004
Wavelength dispersion compensation system for compensating even for higher-order dispersion
FUJITSU LTD2 citations62
US6900940B2May 31, 2005
Optical apparatus and device
FUJITSU LTD6 citations61
US7357521B2Apr 15, 2008
Chromatic dispersion compensation device and method
FUJITSU LTD2 citations60
US7016096B2Mar 21, 2006
Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using same
FUJITSU LTD4 citations60
US6862126B2Mar 1, 2005
Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, optical transmission system, and control method of transmission wavelength characteristics, using same
FUJITSU LTD3 citations60