Inventor
Akio Takamatsu
Inventor
Kamisu, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification30%
D04HMaking textile fabrics, e.g. from fibres or filamentary material20%
B01DSeparation10%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form10%
C04BLime, magnesia10%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
5,336,557'Carbon fiber felting material and process for producing the same'19945,272,004'Carbon fibers and process for producing the same'19935,254,396'Carbon fiber structure and process for producing the same'19935,004,511'Process for producing non-woven fabrics of carbon fibers'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1994Patents assigned to PETOCA LTD (4)· patent assignee history
1991–1994Based in Kamisu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PETOCA LTD | 4 | 1991–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kamisu, JP | 4 | 1991–1994 |