Inventor

Takao Hirose

Inventor

Kamakura, JP

Overview

31→

Patents

1976–1993

Patent span

Chemistry

Primary field (CPC C)

Patents· 31 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

D01Fprimary

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons33%

C10CWorking-up pitch, asphalt, bitumen, tar22%

C04BLime, magnesia8%

C08LCompositions of macromolecular compounds4%

C09JAdhesives4%

C21BManufacture of iron or steel4%

G02BOptical elements, systems or apparatus4%

H01RElectrically-conductive connections4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

A61BDiagnosis2%

PatentTitleYear

5,185,837'Optical fiber connector including flexible fiber holding unit'1993 5,142,647'Magnus measuring apparatus'1992 4,788,050'Process for producing pitch-based carbon fibers'1988 4,773,753'Fiber sensor'1988 4,690,494'Ferrule holding device for optical fiber connector'1987 4,656,022'Process for producing pitch carbon fibers'1987 4,618,463'Process for producing pitch carbon fibers'1986 4,575,411'Process for preparing precursor pitch for carbon fibers'1986 4,574,077'Process for producing pitch based graphite fibers'1986 4,557,545'Shielded electrical connector'1985 4,544,227'Shielded electrical connector'1985 4,534,950'Process for producing carbon fibers'1985 4,533,535'Starting pitches for carbon fibers'1985 4,521,294'Starting pitches for carbon fibers'1985 4,490,239'Pitch for carbon fibers'1984 4,474,617'Pitch for carbon fibers'1984 4,470,960'Process for the production of pitch-derived carbon fibers'1984 4,469,667'Process for production of pitch-derived carbon fibers'1984 4,460,557'Starting pitches for carbon fibers'1984 4,440,624'Starting pitches for carbon fibers'1984 4,397,830'Starting pitches for carbon fibers'1983 4,391,788'Starting pitches for carbon fibers'1983 4,299,738'Detergent composition'1981 4,261,878'Tap hole mixes'1981 4,231,857'Process for preparing petroleum-derived binder pitch'1980 4,229,221'Method for producing refractories'1980 4,220,474'Amorphous refractory compositions'1980 4,177,132'Process for the continuous production of petroleum-derived pitch'1979 4,079,032'Process for producing unburned basic refractories'1978 3,933,719'Polychloroprene-base adhesive composition'1976 3,933,720'Polychloroprene type adhesive compositions'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to NIPPON OIL CO LTD (23)· patent assignee history

1976–1988Based in Kamakura, JP· patent location history

1978–1980Patents assigned to SHINAGAWA REFRACTORIES CO (2)· patent assignee history

1981Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history

1985Patents assigned to ALLIED CORP (2)· patent assignee history

1985–1988Based in Tochigi, JP· patent location history

1987–1993Patents assigned to DAIICHI DENSHI KOGYO (3)· patent assignee history

1987Based in Shimotsuga-gun, JP· patent location history

1992Based in Hiratsuka, JP· patent location history

1993Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON OIL CO LTD	23	1976–1988
DAIICHI DENSHI KOGYO	3	1987–1993
ALLIED CORP	2	1985
SHINAGAWA REFRACTORIES CO	2	1978–1980
AGENCY IND SCIENCE TECHN	1	1981

Locations

Location	Patents	Span
Kamakura, JP	24	1976–1988
Tochigi, JP	2	1985–1988
Tokyo, JP	1	1993
Hiratsuka, JP	1	1992
Shimotsuga-gun, JP	1	1987