Inventor
HAMAKUBO KATSUSHI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “HAMAKUBO KATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
14 patentsUS11914186B2Feb 27, 2024
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations72
US11629269B2Apr 18, 2023
Resin composition, secondary coating material for optical fiber, and optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations72
US11603331B2Mar 14, 2023
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations72
US11919804B2Mar 5, 2024
Resin composition, secondary coating material for optical fiber, optical fiber, and method for manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations71
US12025829B2Jul 2, 2024
Resin composition, optical fiber and method for producing optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations70
US12054629B2Aug 6, 2024
Resin composition, optical fiber, and method for manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations62
US11960115B2Apr 16, 2024
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations62
US11573367B2Feb 7, 2023
Resin composition and optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations62
US11947161B2Apr 2, 2024
Resin composition, optical fiber secondary coating material, optical fiber and manufacturing method of optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations61
US11579358B2Feb 14, 2023
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations61
US11415769B2Aug 16, 2022
Intermittent connection-type optical fiber tape core wire, optical fiber cable, and method for manufacturing intermittent connection-type optical fiber tape core wire
SUMITOMO ELECTRIC INDUSTRIES0 citations61
US12528926B2Jan 20, 2026
Resin composition, secondary coating material for optical fiber, optical fiber, and method for manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations60
US11820704B2Nov 21, 2023
Resin composition, secondary coating material for optical fiber, optical fiber, and method for producing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations60
US11472735B2Oct 18, 2022
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations60
HAMAKUBO KATSUSHI
4 patentsUS8178480B2May 15, 2012
Lubricant for magnetic disk, process for producing the same, and magnetic disk
HAMAKUBO KATSUSHI80 citations96
US8697262B2Apr 15, 2014
Lubricant for magnetic disc, magnetic disc and method of producing the same
HAMAKUBO KATSUSHI3 citations60
US9005782B2Apr 14, 2015
Magnetic disk and method of manufacturing the same
HAMAKUBO KATSUSHI0 citations49
US9500774B2Nov 22, 2016
Plastic lens and production method therefor
HAMAKUBO KATSUSHI0 citations48
HOYA CORP
4 patentsITOH KAE
3 patentsUS8492011B2Jul 23, 2013
Lubricant compound for a magnetic disk, magnetic disk, and method of manufacturing the same
ITOH KAE74 citations95
US8920872B2Dec 30, 2014
Method of producing a magnetic recording disc
ITOH KAE2 citations60
US9245568B2Jan 26, 2016
Magnetic disk and method of manufacturing the same
ITOH KAE1 citations49