Inventor
OGAWA HIROYASU
JP23 patents
⚠️ This page may combine multiple inventors who share the name “OGAWA HIROYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOHO BESLON CO
11 patentsUS4069297AJan 17, 1978
Process for producing carbon fibers
TOHO BESLON CO53 citations92
US4420512ADec 13, 1983
Emulsion type sizing agent for carbon fibers, process for its preparation, and method for using same
TOHO BESLON CO46 citations90
US4073870AFeb 14, 1978
Process for producing carbon fibers
TOHO BESLON CO41 citations89
US4671950AJun 9, 1987
High-strength carbonaceous fiber
TOHO BESLON CO36 citations87
US4520623AJun 4, 1985
Activated carbon fiber spun yarn
TOHO BESLON CO23 citations82
US4460650AJul 17, 1984
Acrylonitrile fibers, a process for producing acrylonitrile fibers, as well as producing peroxidized fibers, fibrous active carbon or carbon fibers therefrom
TOHO BESLON CO22 citations80
US4401533AAug 30, 1983
Surface-treatment of carbon fiber
TOHO BESLON CO12 citations73
US4397831AAug 9, 1983
Production of carbon fibers from acrylonitrile based fibers
TOHO BESLON CO14 citations73
US4830845AMay 16, 1989
Precursor for production of preoxidized fibers or carbon fibers
TOHO BESLON CO9 citations72
US4321446AMar 23, 1982
Apparatus for production of graphite fibers
TOHO BESLON CO17 citations70
US4536448AAug 20, 1985
Preoxidized fiber and process for producing the same
TOHO BESLON CO9 citations68
TOHO RAYON KK
7 patentsUS4883712ANov 28, 1989
Carbon fiber cord for rubber reinforcement
TOHO RAYON KK32 citations92
US5030282AJul 9, 1991
Carbon fiber-reinforced cementitious composite and method for producing the composite
TOHO RAYON KK82 citations91
US4891267AJan 2, 1990
Carbon fiber cord for rubber reinforcement and process for producing the same
TOHO RAYON KK31 citations91
US4861809AAug 29, 1989
Friction material
TOHO RAYON KK27 citations91
US6287677B1Sep 11, 2001
Carbon fiber prepeg for wood reinforcement, wooden sheet laminated therewith, wood reinforcing composite comprising carbon fibers and the wooden sheet, and carbon fiber reinforced wood
TOHO RAYON KK14 citations71
US5167945ADec 1, 1992
Method for producing graphite fiber
TOHO RAYON KK19 citations71
US5078840AJan 7, 1992
Process for the surface treatment of carbon fiber strands
TOHO RAYON KK9 citations68