Inventor
Toyokazu Takubo
Inventor
Himeji, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Cprimary
B29CShaping or joining of plastics24%
A44BButtons, pins, buckles, slide fasteners, or the like18%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers18%
Y10TTechnical subjects covered by former us classification18%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
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. inserts6%
B29LIndexing scheme associated with subclass b29c, relating to particular articles6%
PatentTitleYear
5,645,905'Snap zipper'19975,603,995'Snap zipper and bag with the same'19975,415,904'Snap fastener and packaging bag with the same'19954,867,927'Process of producing thermplastic resin sheet and the like and molding screw therefor'19894,863,653'Process of producing thermoplastic resin sheet and equipment therefor'19894,729,666'Screw for molding thermoplastic resin having a stress relaxation section'19884,666,649'Method of and apparatus for extruding thermoplastic resin'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1997Patents assigned to IDEMITSU PETROCHEMICAL CO (7)· patent assignee history
1987–1988Based in Chiba, JP· patent location history
1989–1997Based in Himeji, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IDEMITSU PETROCHEMICAL CO | 7 | 1987–1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Himeji, JP | 5 | 1989–1997 |
| Chiba, JP | 2 | 1987–1988 |