P

Inventor

HIROSE TAKAO

JP31 patents
⚠️ This page may combine multiple inventors who share the name “HIROSE TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON OIL CO LTD

23 patents
US4575411AMar 11, 1986

Process for preparing precursor pitch for carbon fibers

NIPPON OIL CO LTD8 citations74
US4474617AOct 2, 1984

Pitch for carbon fibers

NIPPON OIL CO LTD14 citations74
US4470960ASep 11, 1984

Process for the production of pitch-derived carbon fibers

NIPPON OIL CO LTD17 citations74
US4469667ASep 4, 1984

Process for production of pitch-derived carbon fibers

NIPPON OIL CO LTD13 citations74
US4460557AJul 17, 1984

Starting pitches for carbon fibers

NIPPON OIL CO LTD14 citations74
US4391788AJul 5, 1983

Starting pitches for carbon fibers

NIPPON OIL CO LTD7 citations74
US4261878AApr 14, 1981

Tap hole mixes

NIPPON OIL CO LTD14 citations74
US4656022AApr 7, 1987

Process for producing pitch carbon fibers

NIPPON OIL CO LTD7 citations73
US4397830AAug 9, 1983

Starting pitches for carbon fibers

NIPPON OIL CO LTD14 citations73
US4231857ANov 4, 1980

Process for preparing petroleum-derived binder pitch

NIPPON OIL CO LTD10 citations73
US4229221AOct 21, 1980

Method for producing refractories

NIPPON OIL CO LTD9 citations73
US3933720AJan 20, 1976

Polychloroprene type adhesive compositions

NIPPON OIL CO LTD16 citations73
US4177132ADec 4, 1979

Process for the continuous production of petroleum-derived pitch

NIPPON OIL CO LTD14 citations71
US4788050ANov 29, 1988

Process for producing pitch-based carbon fibers

NIPPON OIL CO LTD6 citations63
US4534950AAug 13, 1985

Process for producing carbon fibers

NIPPON OIL CO LTD5 citations63
US4533535AAug 6, 1985

Starting pitches for carbon fibers

NIPPON OIL CO LTD3 citations63
US4521294AJun 4, 1985

Starting pitches for carbon fibers

NIPPON OIL CO LTD5 citations63
US4440624AApr 3, 1984

Starting pitches for carbon fibers

NIPPON OIL CO LTD3 citations63
US4574077AMar 4, 1986

Process for producing pitch based graphite fibers

NIPPON OIL CO LTD6 citations62
US4220474ASep 2, 1980

Amorphous refractory compositions

NIPPON OIL CO LTD6 citations62
US3933719AJan 20, 1976

Polychloroprene-base adhesive composition

NIPPON OIL CO LTD5 citations62
US4618463AOct 21, 1986

Process for producing pitch carbon fibers

NIPPON OIL CO LTD4 citations59
US4490239ADec 25, 1984

Pitch for carbon fibers

NIPPON OIL CO LTD1 citations52

DAIICHI DENSHI KOGYO

3 patents

ALLIED CORP

2 patents

JAPAN TOBACCO INC

1 patent

SHINAGAWA REFRACTORIES CO

1 patent

AGENCY IND SCIENCE TECHN

1 patent