Inventor

Hiroyasu Ogawa

Inventor

Shizuoka, JP

Overview

22→

Patents

1978–2003

Patent span

Textiles

Primary field (CPC D)

Patents· 22 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 ribbons28%

Y10TTechnical subjects covered by former us classification19%

C08JWorking-up6%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C08LCompositions of macromolecular compounds4%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials4%

B27DWorking veneer or plywood2%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts2%

PatentTitleYear

6,596,408'Reinforcing material for wood and reinforced wood'2003 6,287,677'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'2001 5,167,945'Method for producing graphite fiber'1992 5,078,840'Process for the surface treatment of carbon fiber strands'1992 5,030,282'Carbon fiber-reinforced cementitious composite and method for producing the composite'1991 4,898,723'Method for producing high strength, high modulus mesophase-pitch based carbon fibers'1990 4,892,722'Method for producing high strength, high modulus mesophase-pitch-based carbon fibers'1990 4,891,267'Carbon fiber cord for rubber reinforcement and process for producing the same'1990 4,883,712'Carbon fiber cord for rubber reinforcement'1989 4,861,809'Friction material'1989 4,830,845'Precursor for production of preoxidized fibers or carbon fibers'1989 4,682,681'Escalator'1987 4,671,950'High-strength carbonaceous fiber'1987 4,536,448'Preoxidized fiber and process for producing the same'1985 4,520,623'Activated carbon fiber spun yarn'1985 4,460,650'Acrylonitrile fibers, a process for producing acrylonitrile fibers, as well as producing peroxidized fibers, fibrous active carbon or carbon fibers therefrom'1984 4,420,512'Emulsion type sizing agent for carbon fibers, process for its preparation, and method for using same'1983 4,401,533'Surface-treatment of carbon fiber'1983 4,397,831'Production of carbon fibers from acrylonitrile based fibers'1983 4,321,446'Apparatus for production of graphite fibers'1982 4,073,870'Process for producing carbon fibers'1978 4,069,297'Process for producing carbon fibers'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1989Patents assigned to TOHO BESLON CO (11)· patent assignee history

1978–1992Based in Shizuoka, JP· patent location history

1983–1985Based in Mishima, JP· patent location history

1987Based in Hitachi, JP· patent location history

1989–2001Patents assigned to TOHO RAYON KK (7)· patent assignee history

1989–1990Patents assigned to YOKOHAMA RUBBER CO LTD (2)· patent assignee history

1990Patents assigned to PETOCA LTD (2)· patent assignee history

2001Patents assigned to AICA KOGYO CO LTD (1)· patent assignee history

2001–2003Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOHO BESLON CO	11	1978–1989
TOHO RAYON KK	7	1989–2001
PETOCA LTD	2	1990
YOKOHAMA RUBBER CO LTD	2	1989–1990
AICA KOGYO CO LTD	1	2001

Locations

Location	Patents	Span
Shizuoka, JP	17	1978–1992
Tokyo, JP	2	2001–2003
Mishima, JP	2	1983–1985
Hitachi, JP	1	1987