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:
Jul. 18, 2023
Filed:
Dec. 26, 2018
Toyo Seikan Group Holdings, Ltd., Tokyo, JP;
Satoshi Tanaka, Kanagawa, JP;
Takahiko Totani, Kanagawa, JP;
Yoichi Ishizaki, Kanagawa, JP;
Kyohei Ota, Yokohama, JP;
Ryo Suenaga, Kanagawa, JP;
Masahiro Kuninori, Kanagawa, JP;
TOYO SEIKAN GROUP HOLDINGS, LTD., Tokyo, JP;
Abstract
Provided are a multilayer film having excellent gas permeability and excellent handling properties and hence is suited for forming a cell culture container, and a cell culture container formed by using the same. A multilayer film used for forming a cell culture container, comprising: a base material composed of a polyethylene-based resin having a density of 0.87 g/cmto 0.90 g/cm; and an inner layer composed of a polyethylene-based resin having a density of 0.896 g/cmto 0.93 g/cmand forming a cell culture icy surface. A cell culture container is formed by using this multilayer film.