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Inventor

Toshimitsu Akiyama

Inventor
Tokyo, JP

Overview

2→
Patents
1977–1983
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 plastics33%
B31FMechanical working or deformation of paper, cardboard or material worked in a manner analogous to paper33%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
4,419,173'Method of producing corrugated cardboards and apparatus'19834,025,274'Apparatus and process for preparing thermoplastic resin composition'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to TOYO SODA MFG CO LTD (1)· patent assignee history
1977–1983Based in Tokyo, JP· patent location history
1983Patents assigned to THREE PRODUCTS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
THREE PRODUCTS11983
TOYO SODA MFG CO LTD11977
Locations
LocationPatentsSpan
Tokyo, JP21977–1983