Inventor
OKAZAKI IWAO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “OKAZAKI IWAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
13 patentsUS11292740B2Apr 5, 2022
Optical fiber manufacturing method and optical fiber manufacturing apparatus
SUMITOMO ELECTRIC INDUSTRIES0 citations62
US10487001B2Nov 26, 2019
Seal structure of optical fiber drawing furnace, and method for drawing optical fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations62
US7016582B2Mar 21, 2006
Polarized wave holding optical fiber, and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES5 citations60
US12565397B2Mar 3, 2026
Winding device and winding method
SUMITOMO ELECTRIC INDUSTRIES0 citations59
US11040906B2Jun 22, 2021
Method for manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations57
US9475722B2Oct 25, 2016
Optical fiber producing method and apparatus and optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations57
US12291481B2May 6, 2025
Method for manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations55
US12503387B2Dec 23, 2025
Seal structure of wire drawing furnace for optical fiber, and production method for optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US11512018B2Nov 29, 2022
Optical fiber manufacturing method and optical fiber manufacturing apparatus
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US11312651B2Apr 26, 2022
Optical fiber drawing method and drawing apparatus
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US9567252B2Feb 14, 2017
Optical fiber drawing method and optical fiber drawing apparatus
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US12541050B2Feb 3, 2026
Method for manufacturing optical fiber and optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US12585062B2Mar 24, 2026
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations47
TORAY INDUSTRIES
11 patentsUS5069962ADec 3, 1991
Biaxially oriented laminated film
TORAY INDUSTRIES56 citations96
US5389422AFeb 14, 1995
Biaxially oriented laminated film
TORAY INDUSTRIES51 citations92
US5266376ANov 30, 1993
Magnetic recording medium
TORAY INDUSTRIES33 citations92
US6331344B1Dec 18, 2001
Biaxially oriented polyester film
TORAY INDUSTRIES18 citations80
US5470637ANov 28, 1995
Polyester composition and biaxially oriented polyester film containing the same
TORAY INDUSTRIES15 citations73
US5458964AOct 17, 1995
Biaxially oriented film comprising organic particles
TORAY INDUSTRIES6 citations73
US5677034AOct 14, 1997
Biaxially oriented, laminated polyester film
TORAY INDUSTRIES7 citations72
US5532047AJul 2, 1996
Biaxially oriented, laminated polyester film
TORAY INDUSTRIES9 citations72
US5336079AAug 9, 1994
Biaxially oriented laminated film comprising particles in a specific ratio of particle density
TORAY INDUSTRIES12 citations72
US4952449AAug 28, 1990
Biaxially oriented polyester film
TORAY INDUSTRIES17 citations72
US6319587B1Nov 20, 2001
Biaxially-oriented polyester film
TORAY INDUSTRIES10 citations71