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Inventor

Yoshio Sohda

Inventor
Kawasaki, JP

Overview

19→
Patents
1985–2003
Patent span
Chemistry
Primary field (CPC C)

Patents· 19 as inventor

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

C04Bprimary
C04BLime, magnesia37%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons37%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
Y10TTechnical subjects covered by former us classification7%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
C23CCoating metallic material4%
F16DCouplings for transmitting rotation4%
PatentTitleYear
6,660,383'Multifibrous carbon fiber and utilization thereof'20036,056,912'Process for producing carbon-fiber-reinforced composite material'20005,935,359'Process for producing carbonaceous preform'19995,622,660'Process for producing carbon fiber fabrics'19975,614,134'Process for preparing carbon/carbon composite preform and carbon/carbon composite'19975,523,035'Process for producing carbonaceous material'19965,433,937'Process for producing carbon preform'19955,399,378'Process of manufacturing carbon fibers with high chemical stability'19955,192,471'Process for preparing carbon/carbon composite'19935,181,979'Process for preparing carbon/carbon composite'19935,114,635'Process for producing carbon material and carbon/carbon composites'19925,093,156'Process for preparing carbon material'19925,057,254'Process for producing carbon/carbon composites'19915,045,356'Process for producing carbon/carbon composite having oxidation resistance'19914,849,200'Process for fabricating carbon/carbon composite'19894,788,050'Process for producing pitch-based carbon fibers'19884,656,022'Process for producing pitch carbon fibers'19874,574,077'Process for producing pitch based graphite fibers'19864,534,950'Process for producing carbon fibers'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2000Patents assigned to NIPPON OIL CO LTD (18)· patent assignee history
1985–1997Based in Kawasaki, JP· patent location history
1991–1992Patents assigned to KAWASAKI HEAVY IND LTD (2)· patent assignee history
1991Patents assigned to HIRAI TOSHIO (1)· patent assignee history
1991Patents assigned to JAPAN AS REPRESENTED BY THE DI (1)· patent assignee history
1991–2003Based in Kanagawa, JP· patent location history
1992Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history
1992–1997Based in Machida, JP· patent location history
1993Based in Tokyo, JP· patent location history
1999–2000Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON OIL CO LTD181985–2000
KAWASAKI HEAVY IND LTD21991–1992
AGENCY IND SCIENCE TECHN11992
HIRAI TOSHIO11991
JAPAN AS REPRESENTED BY THE DI11991
Locations
LocationPatentsSpan
Kawasaki, JP71985–1997
Machida, JP61992–1997
Kanagawa, JP31991–2003
Yokohama, JP21999–2000
Tokyo, JP11993