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:
Jan. 01, 2013
Filed:
May. 12, 2008
Shiro Eguchi, Chiba, JP;
Tomoyuki Hikosaka, Ichihara, JP;
Satoru Gohzaki, Ichihara, JP;
Takayuki Suzuki, Kisarazu, JP;
Shigekatsu Sato, Hitachi, JP;
Isao Hashimoto, Hitachi, JP;
Shiro Eguchi, Chiba, JP;
Tomoyuki Hikosaka, Ichihara, JP;
Satoru Gohzaki, Ichihara, JP;
Takayuki Suzuki, Kisarazu, JP;
Shigekatsu Sato, Hitachi, JP;
Isao Hashimoto, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
At a conveying pathfor continuously carrying a sheet material, an electron beam irradiation meansis arranged in opposition to at least one surface of the sheet material, and at least one surface of the sheet materialis sterilized using such an electron beam. The conveying pathtakes shape of a hollow box surrounding the sheet material, and has an electron beam irradiation areaat a part of this area, while keeping a reduced-pressure state ranging from 10 to 80,000 Pa using a pressure reduction means. Further, the electron beam irradiation areawhere the electron beam irradiation meansis arranged at least one sub areaat each of adjacent hollow box-shaped conveying pathat carry-in side and carry-out side of the sheet material, providing the pressure reduction meansfor depressurizing the sub area