The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2021
Filed:
Sep. 28, 2018
Sekisui Chemical Co., Ltd., Osaka, JP;
Koji Yachi, Shiraoka, JP;
Hiroshi Hiraike, Hasuda, JP;
Yuuki Hoshiyama, Shiraoka, JP;
Izumi Okamura, Takatsuki, JP;
Yasuharu Nagai, Takatsuki, JP;
Kazuyuki Yahara, Nagaokakyo, JP;
Ayaha Oguri, Takatsuki, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
A shock-absorbing sheet comprises a foamed resin layer having a thickness of 200 μm or less, a void ratio (P) of a plane directional cross section at a thickness of 0.1 T, a void ratio (P) of a plane directional cross section at a thickness of 0.5 T, and a void ratio (P) of a plane directional cross section at a thickness of 0.9 T from one surface of the foamed resin layer each ranging from 10 to 70 area %; and the standard deviation (Pσ) for an average void ratio found from the void ratio (P), the void ratio (P) and the void ratio (P) ranging from 1.0 to 20.