Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuichi Ishino0
Minoru Tsukada0
Yoshinobu Machida0
Kenichi Sato0
Date of Patent
March 12, 2013
0Patent Application Number
129396940
Date Filed
November 4, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A composite sheet comprising an upper layer 2 and a lower layer 3 both made of a substantially inextensible sheet which are partially bonded to each other at a large number of joints 4. The upper layer 2 forms a large number of outward hollow projections 5 in the area other than the joints 4. The projections 5 and the joints 4 are arranged such that the projections and the joints alternate in one direction to make lines and that the projections in each of the lines are out of alignment with the projections in the adjacent lines.
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