Inventor
HATTORI TOMOYUKI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “HATTORI TOMOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
32 patentsUS6810188B1Oct 26, 2004
Coated optical fiber
SUMITOMO ELECTRIC INDUSTRIES64 citations96
US5524164AJun 4, 1996
Coated tape form optical fiber wire
SUMITOMO ELECTRIC INDUSTRIES67 citations94
US7151879B2Dec 19, 2006
Optical fiber ribbon that is easily branched into individual optical fibers and optical fiber cable using the same
SUMITOMO ELECTRIC INDUSTRIES30 citations92
US7116872B2Oct 3, 2006
Optical fiber tape core
SUMITOMO ELECTRIC INDUSTRIES35 citations92
US6028976AFeb 22, 2000
Split type ribbon optical fiber core cable
SUMITOMO ELECTRIC INDUSTRIES33 citations92
US5548672AAug 20, 1996
Reinforced multicore optical fiber coupler
SUMITOMO ELECTRIC INDUSTRIES38 citations92
US5481632AJan 2, 1996
Optical waveguide module and method of manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES47 citations92
US5430821AJul 4, 1995
Protective structure for an optical fiber coupler and method for protecting the same
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US5268984ADec 7, 1993
Coated optical fiber and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US5261018ANov 9, 1993
Optical-coupler reinforcing material and optical-coupler reinforcing method
SUMITOMO ELECTRIC INDUSTRIES25 citations92
US5013126AMay 7, 1991
Waterproof optical fiber cable
SUMITOMO ELECTRIC INDUSTRIES26 citations92
US5627930AMay 6, 1997
Arrayed optical fiber coupler and method of manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES24 citations91
US5621838AApr 15, 1997
Resins for coated optical fiber units
SUMITOMO ELECTRIC INDUSTRIES34 citations91
US5309536AMay 3, 1994
Process for producing an optical fiber coupler
SUMITOMO ELECTRIC INDUSTRIES28 citations91
US5247598ASep 21, 1993
Reinforcing apparatus for optical-fiber coupler
SUMITOMO ELECTRIC INDUSTRIES33 citations90
US7542644B2Jun 2, 2009
Coated optical fiber and coated optical fiber with connector
SUMITOMO ELECTRIC INDUSTRIES10 citations84
US6309567B1Oct 30, 2001
Collectively coating die device for manufacturing separable optical fiber ribbon and manufacturing method thereof
SUMITOMO ELECTRIC INDUSTRIES19 citations84
US7046884B2May 16, 2006
Optical fiber, optical fiber tape, optical cable and optical connector with optical fiber
SUMITOMO ELECTRIC INDUSTRIES10 citations74
US6907175B2Jun 14, 2005
Coated optical fiber, optical fiber tape core using it and optical fiber unit
SUMITOMO ELECTRIC INDUSTRIES9 citations74
US9057856B2Jun 16, 2015
Optical cable
SUMITOMO ELECTRIC INDUSTRIES4 citations73
US6898356B2May 24, 2005
Split type optical fiber tape core
SUMITOMO ELECTRIC INDUSTRIES7 citations73
US6711335B1Mar 23, 2004
Heat resistant optical fiber core
SUMITOMO ELECTRIC INDUSTRIES10 citations73
US5945173AAug 31, 1999
Method of making optical fiber ribbon
SUMITOMO ELECTRIC INDUSTRIES12 citations73
US5208883AMay 4, 1993
Method of reinforcing optical fiber coupler
SUMITOMO ELECTRIC INDUSTRIES14 citations73
US6333071B1Dec 25, 2001
Method and apparatus for producing optical fiber ribbons
SUMITOMO ELECTRIC INDUSTRIES6 citations63
US5695540ADec 9, 1997
Method of spacing fibers of optical fiber tapes and coupling the fibers
SUMITOMO ELECTRIC INDUSTRIES5 citations63
US5417734AMay 23, 1995
Method of producing optical fiber couplers using rectifier rods to provide even heat distribution
SUMITOMO ELECTRIC INDUSTRIES4 citations63
US5325450AJun 28, 1994
Optical fiber coupler and its manufacturing method
SUMITOMO ELECTRIC INDUSTRIES5 citations63
US5904883AMay 18, 1999
Method for producing optical fiber ribbon
SUMITOMO ELECTRIC INDUSTRIES6 citations62
US7822307B1Oct 26, 2010
Optical fiber ribbon for wiring of equipment and connector-attached optical fiber ribbon for wiring of equipment
SUMITOMO ELECTRIC INDUSTRIES2 citations60
US6471892B1Oct 29, 2002
Method of producing tape type optical fiber core wire
SUMITOMO ELECTRIC INDUSTRIES0 citations48
US10451796B2Oct 22, 2019
Optical fiber and method for producing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations42