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Inventor

Tetsuya Sumitomo

Inventor
Tokyo, JP

Overview

2→
Patents
2002–2005
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.

B21Cprimary
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling50%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application25%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
6,913,074'Method of making an internal grooved tube'20056,470,723'Apparatus for manufacturing internal grooved tube'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2005Patents assigned to FURUKAWA ELECTRIC CO LTD (2)· patent assignee history
2002–2005Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FURUKAWA ELECTRIC CO LTD22002–2005
Locations
LocationPatentsSpan
Tokyo, JP22002–2005