Inventor

Katsuyuki Usami

Inventor

Yokohama, JP

Overview

2→

Patents

1986–1989

Patent span

Performing operations

Primary field (CPC B)

Patents· 2 as inventor

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

B29Cprimary

B29CShaping or joining of plastics20%

Y10TTechnical subjects covered by former us classification20%

B29DProducing particular articles from plastics or from substances in a plastic state10%

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. inserts10%

C08JWorking-up10%

C08LCompositions of macromolecular compounds10%

C09KMaterials for miscellaneous applications, not provided for elsewhere10%

G02BOptical elements, systems or apparatus10%

PatentTitleYear

4,869,938'Polypropylene sheet for press-through packages, production process thereof, and polypropylene resin composition'1989 4,617,207'Thermoplastic resin sheet'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1989Patents assigned to MITSUI TOATSU CHEMICALS (2)· patent assignee history

1986–1989Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUI TOATSU CHEMICALS	2	1986–1989

Locations

Location	Patents	Span
Yokohama, JP	2	1986–1989