Inventor
AIDA KAZUO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “AIDA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ANDO ELECTRIC
10 patentsUS5633750AMay 27, 1997
Optical fiber amplifier
ANDO ELECTRIC75 citations95
US5677781AOct 14, 1997
Method and device for measuring a noise figure in optical amplifiers
ANDO ELECTRIC40 citations92
US5561551AOct 1, 1996
Method and apparatus for determining noise factor of optical amplifier
ANDO ELECTRIC19 citations84
US5574534ANov 12, 1996
Apparatus for determining noise factor of optical amplifier
ANDO ELECTRIC13 citations73
US6122087ASep 19, 2000
Optical-frequency-stabilized light source
ANDO ELECTRIC14 citations72
US5786930AJul 28, 1998
Optical frequency sweep signal generator
ANDO ELECTRIC9 citations72
US5781322AJul 14, 1998
Method and apparatus for measuring the noise figure of an optical amplifier
ANDO ELECTRIC11 citations71
US5596441AJan 21, 1997
Optical polarization controller
ANDO ELECTRIC9 citations71
US5495362AFeb 27, 1996
Photoperiodic circuit amplification control apparatus
ANDO ELECTRIC11 citations71
US5475529ADec 12, 1995
Optical amplifier
ANDO ELECTRIC7 citations71
NIPPON TELEGRAPH & TELEPHONE
7 patentsUS6172803B1Jan 9, 2001
Optical amplifier and transmission system using the same
NIPPON TELEGRAPH & TELEPHONE70 citations96
US5471334ANov 28, 1995
Method and apparatus for monitoring noise figure of optical amplifier
NIPPON TELEGRAPH & TELEPHONE62 citations96
US5245690ASep 14, 1993
Optical fiber amplifier including rare earth doped fiber and feedback pump light source control
NIPPON TELEGRAPH & TELEPHONE67 citations96
US6157025ADec 5, 2000
Disk shaped tunable optical filter
NIPPON TELEGRAPH & TELEPHONE76 citations95
US5083874AJan 28, 1992
Optical repeater and optical network using the same
NIPPON TELEGRAPH & TELEPHONE100 citations95
US5521751AMay 28, 1996
Noise measurement for optical amplifier and a system therefor
NIPPON TELEGRAPH & TELEPHONE42 citations92
US5005937AApr 9, 1991
Optical branching equipment and optical network using the same
NIPPON TELEGRAPH & TELEPHONE33 citations91
TOSHIBA KK
6 patentsUS6219349B1Apr 17, 2001
Broadband switching networks
TOSHIBA KK49 citations95
US5896371AApr 20, 1999
Broadband switching networks
TOSHIBA KK74 citations95
US5825766AOct 20, 1998
Broadband switching networks
TOSHIBA KK25 citations92
US5493573AFeb 20, 1996
Broad band switching network
TOSHIBA KK28 citations91
US5021948AJun 4, 1991
Program counter display device
TOSHIBA KK20 citations81
US6985487B1Jan 10, 2006
Broadband switching networks
TOSHIBA KK7 citations73