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Inventor

Saburo Akiyama

Inventor
Tokyo, JP

Overview

5→
Patents
1989–1999
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

B29Cprimary
B29CShaping or joining of plastics18%
B29DProducing particular articles from plastics or from substances in a plastic state18%
C08LCompositions of macromolecular compounds18%
F16LPipes18%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds9%
C09JAdhesives9%
H05BElectric heating9%
PatentTitleYear
5,916,468'Electrically weldable pipe joint and production method thereof'19995,618,065'Electric welding pipe joint having a two layer outer member'19975,026,792'Resin composition'19914,946,918'Synthetic resin compatibilizer'19904,804,713'Pressure sensitive adhesive resin composition'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to CENTRAL GLASS CO LTD (1)· patent assignee history
1989Based in Koganei, JP· patent location history
1990Patents assigned to NIPPON OILS & FATS CO LTD (1)· patent assignee history
1990–1991Based in Tokyo, JP· patent location history
1991Patents assigned to TEIJIN CHEMICALS LTD (1)· patent assignee history
1997–1999Patents assigned to HITACHI METALS LTD (2)· patent assignee history
1997Based in Kuwana, JP· patent location history
1999Based in Mie, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI METALS LTD21997–1999
CENTRAL GLASS CO LTD11989
NIPPON OILS & FATS CO LTD11990
TEIJIN CHEMICALS LTD11991
Locations
LocationPatentsSpan
Tokyo, JP21990–1991
Mie, JP11999
Kuwana, JP11997
Koganei, JP11989