公开(公告)号：US20190292686A1

公开(公告)日：2019-09-26

申请号：US16357633

申请日：2019-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirokazu KIMIYA ,  Keiji FUJIWARA ,  Hiroto SUMIDA

IPC: D01D5/00

Abstract: An electrospinning apparatus for depositing fibers on a target having first and second surfaces opposed to each other. The apparatus includes a discharger that discharges a material solution of the fibers towards the first surface of the target, a collector electrode containing a top portion opposed to the discharger, a holder that holds the target between the discharger and the collector electrode so that the first surface of the target is opposed to the discharger, a power supply, a shift regulator that shifts the holder in a direction parallel to the first surface of the target, a distance regulator that regulates a target distance between the top portion of the collector electrode and the second surface of the target, and a controller that controls the shift regulator and the distance regulator to produce a fiber assembly having a given deposited condition on the first surface of the target.

公开(公告)号：US20180362765A1

公开(公告)日：2018-12-20

申请号：US15986906

申请日：2018-05-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirokazu KIMIYA ,  Tomoko KAWASHIMA

IPC: C08L89/00 ,  A61L15/60 ,  A61L15/22 ,  A61L15/42 ,  A61L26/00 ,  A61L15/44 ,  A61K8/02 ,  A61K8/73 ,  A61K8/65 ,  A61K9/00 ,  A61K9/70 ,  A61K47/42 ,  A61K47/36 ,  D01D5/00

Abstract: To easily manufacture a fiber assembly that includes fibers and particulates supported by the fibers, provided is a method for manufacturing a fiber assembly including: a preparation step of preparing a raw material liquid that contains a water-soluble first component, a second component that is capable of forming a hydrogel, and water; and an electrospinning step of forming fibers that contain the first component as a main component and particulates that are supported by a plurality of the fibers and contain the second component from the raw material liquid by an electrospinning method, wherein in a case where the fibers contain the second component, a mass proportion of the second component contained in the particulates is greater than a mass proportion of the second component contained in the fibers.

公开(公告)号：US20180360701A1

公开(公告)日：2018-12-20

申请号：US15986951

申请日：2018-05-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirokazu KIMIYA

IPC: A61K8/02 ,  A61K8/65 ,  A61K8/73 ,  A61K8/67

Abstract: Provided is a stacked body including: a fiber substrate layer that contains first fibers; and a fiber assembly that is stacked on the fiber substrate layer, wherein the fiber assembly includes: second fibers that contain a water-soluble first component as a main component and particulates that contain a second component that is capable of forming a hydrogel, and in a case where the second fibers contain the second component, a mass proportion of the second component contained in the particulates is greater than a mass proportion of the second component contained in the second fibers, and an average fiber diameter D1 of the first fibers and an average fiber diameter D2 of the second fibers satisfy the relationship: D1>D2. With the stacked body, embedment of the particulates into the fiber substrate layer is suppressed, and a large number of particulates can be laid in an exposed state.