Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shun Kurata0
Hiroki Naganawa0
Hiroki Ohara0
Kinji Ochiai0
Fumiaki Nakamura0
Date of Patent
February 15, 2011
0Patent Application Number
116340240
Date Filed
December 5, 2006
0Patent Primary Examiner
Patent abstract
A compound tube is disclosed that includes an outer tube and an inner tube disposed in the outer tube. A passage is defined between the outer tube and the inner tube. Various methods of joining the outer tube to the inner tube are disclosed.
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