公开(公告)号：US20190015535A1

公开(公告)日：2019-01-17

申请号：US16066578

申请日：2016-11-15

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Hiroyuki DAIKU ,  Takeshi NODA ,  Ichiro SAKAI

IPC: A61L2/08 ,  A61L2/26 ,  B65B55/08

CPC classification number: A61L2/087 ,  A61L2/26 ,  A61L2202/11 ,  A61L2202/23 ,  B65B55/08 ,  G21K5/04

Abstract: An internal surface electron beam-irradiating device sterilizes the internal surface of a vial by irradiation with an electron beam. The internal surface electron beam-irradiating device includes an electron beam generator that generates the electron beam, a vacuum chamber containing the electron beam generator, an output window that emits the electron beam to the outside of the vacuum chamber, and an extension nozzle that guides an electron cloud formed by extending the electron beam emitted from the output window. The extension nozzle includes a leaking section that leaks the electron cloud. The leaking section includes empty portions that discharge part of the electron cloud to the outside, and a component portion that guides the electron cloud into the leaking section.

公开(公告)号：US20190134241A1

公开(公告)日：2019-05-09

申请号：US16094312

申请日：2016-12-26

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Takeshi NODA ,  Ichiro SAKAI ,  Hiroyuki DAIKU

IPC: A61L2/08 ,  B65B55/08 ,  G21K5/04 ,  G21K5/10

Abstract: A nozzle-type electron beam irradiation device includes a vacuum chamber, an electron beam generator disposed in the vacuum chamber, and a vacuum nozzle that is connected to the vacuum chamber so as to guide an electron beam from the electron beam generator and emit the electron beam to the outside. The nozzle-type electron beam irradiation device includes a high-vacuum pump capable of sucking gas from the vicinity of the connecting part of the vacuum nozzle in the vacuum chamber.

公开(公告)号：US20200273594A1

公开(公告)日：2020-08-27

申请号：US16646382

申请日：2018-09-05

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Ryuta TANAKA ,  Ichiro SAKAI ,  Takeshi NODA

IPC: G21K5/04 ,  H01J37/07

Abstract: An electron beam irradiation device includes a vacuum chamber having an electron beam generator inside, a vacuum nozzle, and a window foil on a tip of the vacuum nozzle. The electron beam irradiation device further includes an outer pipe surrounding the vacuum nozzle, a cooling-gas supply unit that supplies cooling gas into a coolant passage formed between the vacuum nozzle and the outer pipe, and a heat-conducting transmission foil fitted to the window foil and contacting the tip of the vacuum nozzle. The heat-conducting transmission foil has a value of at least 63×10−3, which is determined by dividing a thermal conductivity [W/(m·K)] by a density [kg/m3], and a tip part of the vacuum nozzle is made of a material having at least a thermal conductivity of copper.

公开(公告)号：US20190287693A1

公开(公告)日：2019-09-19

申请号：US16348340

申请日：2017-11-02

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Hiroyuki DAIKU ,  Ichiro SAKAI ,  Norihiro INOUE ,  Yohei TERASAKA

IPC: G21K5/04 ,  B65B55/08 ,  A61L2/08 ,  B67C7/00

Abstract: Provided is an electron beam irradiating device capable of emitting an electron beam from an electron beam generation source surrounded by a vacuum chamber to outside of the vacuum chamber through an electron beam exit window. The electron beam exit window includes: a grid; a window foil allowing the electron beam to pass therethrough; and a frame-shaped pressing member pressing the window foil against the grid. The surface of the grid has a groove section having an annular shape. A metal gasket is pressed between the groove section and the window foil.