Inventor
KATO TAKATOSHI
JP100 patents
⚠️ This page may combine multiple inventors who share the name “KATO TAKATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
36 patentsUS6266467B1Jul 24, 2001
Optical fiber and optical transmission system including the same
SUMITOMO ELECTRIC INDUSTRIES119 citations99
US5721800AFeb 24, 1998
Dispersion-shifted fiber
SUMITOMO ELECTRIC INDUSTRIES103 citations98
US6658190B2Dec 2, 2003
Optical fiber and optical communication system including the same
SUMITOMO ELECTRIC INDUSTRIES70 citations96
US6415089B2Jul 2, 2002
Optical fiber and optical transmission system including the same
SUMITOMO ELECTRIC INDUSTRIES48 citations96
US6181858B1Jan 30, 2001
Dispersion-shifted fiber
SUMITOMO ELECTRIC INDUSTRIES64 citations96
US6072929AJun 6, 2000
Dispersion-shifted fiber
SUMITOMO ELECTRIC INDUSTRIES64 citations96
US5852701ADec 22, 1998
Dispersion-shifted fiber
SUMITOMO ELECTRIC INDUSTRIES66 citations96
US5822488AOct 13, 1998
Single-mode optical fiber with plural core portions
SUMITOMO ELECTRIC INDUSTRIES62 citations96
US8041226B2Oct 18, 2011
Optical transceiver with equalizing function and a method to setup the optical transceiver
SUMITOMO ELECTRIC INDUSTRIES24 citations93
US6567596B2May 20, 2003
Optical fiber suitable for use in WDM transmission system
SUMITOMO ELECTRIC INDUSTRIES20 citations93
US6556758B2Apr 29, 2003
Optical fiber and optical transmission line including the same
SUMITOMO ELECTRIC INDUSTRIES20 citations93
US6535677B1Mar 18, 2003
Dispersion-managed optical fiber, method of manufacturing the same, optical communication system including the same and optical fiber preform therefor
SUMITOMO ELECTRIC INDUSTRIES39 citations93
US6477306B2Nov 5, 2002
Dispersion-compensating optical fiber, and, optical transmission line and dispersion-compensating module respectively including the same
SUMITOMO ELECTRIC INDUSTRIES34 citations93
US6400877B1Jun 4, 2002
Negative-dispersion optical fiber and optical transmission line incorporating the same
SUMITOMO ELECTRIC INDUSTRIES29 citations93
US6335995B1Jan 1, 2002
Dispersion-shifted fiber
SUMITOMO ELECTRIC INDUSTRIES21 citations93
US6256440B1Jul 3, 2001
Dispersion-shifted optical fiber
SUMITOMO ELECTRIC INDUSTRIES19 citations93
US6157754ADec 5, 2000
Optical transmission line
SUMITOMO ELECTRIC INDUSTRIES39 citations93
US6360046B1Mar 19, 2002
Dispersion-shifted optical fiber
SUMITOMO ELECTRIC INDUSTRIES29 citations92
US6169837B1Jan 2, 2001
Dispersion-flattened optical fiber
SUMITOMO ELECTRIC INDUSTRIES48 citations92
US6062046AMay 16, 2000
Method of making a single-mode optical fiber with multiple concentric core portions including the RIT process
SUMITOMO ELECTRIC INDUSTRIES19 citations92
US5732178AMar 24, 1998
Single-mode optical fiber
SUMITOMO ELECTRIC INDUSTRIES45 citations92
US6614976B2Sep 2, 2003
Optical fiber having a large positive dispersion
SUMITOMO ELECTRIC INDUSTRIES18 citations91
US6337942B1Jan 8, 2002
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES23 citations91
US5946439AAug 31, 1999
Single-mode optical fiber
SUMITOMO ELECTRIC INDUSTRIES36 citations91
US5913005AJun 15, 1999
Single-mode optical fiber
SUMITOMO ELECTRIC INDUSTRIES24 citations91
US9319142B2Apr 19, 2016
Full-duplex optical transceiver applicable to digital coherent system
SUMITOMO ELECTRIC INDUSTRIES12 citations84
US6532331B1Mar 11, 2003
Single-mode optical fiber floor long haul transmission
SUMITOMO ELECTRIC INDUSTRIES14 citations84
US6522821B1Feb 18, 2003
Dispersion-compensating optical fiber and optical transmission system including the same
SUMITOMO ELECTRIC INDUSTRIES13 citations84
US6275638B1Aug 14, 2001
Dispersion-shifted fiber
SUMITOMO ELECTRIC INDUSTRIES18 citations84
US6731847B1May 4, 2004
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES13 citations82
US6917743B2Jul 12, 2005
Optical fiber, optical transmission line, and optical communications system
SUMITOMO ELECTRIC INDUSTRIES17 citations78
US7239783B2Jul 3, 2007
Optical fiber, dispersion compensator, and optical transmission system
SUMITOMO ELECTRIC INDUSTRIES7 citations74
US7202994B2Apr 10, 2007
Wavelength converter
SUMITOMO ELECTRIC INDUSTRIES7 citations74
US6490397B2Dec 3, 2002
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES10 citations74
US6487353B2Nov 26, 2002
Dispersion-shifted optical fiber
SUMITOMO ELECTRIC INDUSTRIES10 citations74
US6374027B1Apr 16, 2002
Optical fiber transmission-line
SUMITOMO ELECTRIC INDUSTRIES10 citations74
HITACHI LTD
5 patentsUS7934006B2Apr 26, 2011
Device management system
HITACHI LTD28 citations93
US8015417B2Sep 6, 2011
Remote access system, gateway, client device, program, and storage medium
HITACHI LTD20 citations92
US7607140B2Oct 20, 2009
Device management system
HITACHI LTD25 citations92
US6791776B2Sep 14, 2004
Apparatus for information recording and reproducing
HITACHI LTD18 citations91
US6326838B1Dec 4, 2001
Time sharing analog filters control method and magnetic disk system
HITACHI LTD15 citations84
MURATA MANUFACTURING CO
5 patentsUS6323740B1Nov 27, 2001
High-frequency circuit device and communication apparatus
MURATA MANUFACTURING CO18 citations93
US6204739B1Mar 20, 2001
Dielectric resonant apparatus
MURATA MANUFACTURING CO23 citations93
US6188360B1Feb 13, 2001
Radio-frequency radiation source, radio frequency radiation source array, antenna module, and radio equipment
MURATA MANUFACTURING CO49 citations93
US6628230B2Sep 30, 2003
Radio frequency module, communication device, and radar device
MURATA MANUFACTURING CO21 citations90
US6515554B2Feb 4, 2003
High-frequency circuit device and communication apparatus
MURATA MANUFACTURING CO13 citations84
KATO TAKATOSHI
2 patentsTOSHIBA KK
1 patentHITACHI GLOBAL STORAGE TECH
1 patentShowing the top 50 of 100 patents by PatentIndex Score.