公开(公告)号：US20180105955A1

公开(公告)日：2018-04-19

申请号：US15564756

申请日：2016-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOI HATANAKA ,  TOSHIFUMI NAGINO ,  KAZUFUMI MIYATAKE ,  KOTA NAKAHIRA ,  NOBORU MASUDA

IPC: D01D5/08 ,  D01F6/06 ,  D04H5/06

CPC classification number: D01D5/08 ,  D01D5/0985 ,  D01F6/04 ,  D01F6/06 ,  D04H1/4282 ,  D04H1/4291 ,  D04H1/56 ,  D04H3/007 ,  D04H3/016 ,  D04H3/14 ,  D04H3/16 ,  D04H5/06 ,  D10B2321/022 ,  D10B2401/00 ,  G10K11/16 ,  G10K11/162

Abstract: A fiber assembly that is obtained by melt-spinning a thermoplastic resin, in which a fiber diameter of the fiber assembly has a median diameter of 1 μm or less, and a melt viscosity of the fiber assembly is 100 mPa·s or more and 1000 mPa·s or less.

公开(公告)号：US20170233894A1

公开(公告)日：2017-08-17

申请号：US15501641

申请日：2015-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOSHIFUMI NAGINO ,  NOBORU MASUDA ,  MOTOI HATANAKA ,  YOSHIE TAKAHASHI

IPC: D01D5/084 ,  B29C37/00 ,  B29C47/80 ,  B29C47/86 ,  D01D5/098 ,  B29C47/00

Abstract: An ultrafine fiber production device has a first heating unit, a nozzle unit, a hot air heating unit, a hot air blowing unit, a second heating unit, and a fiber collecting unit. The first heating unit melts a thermoplastic resin. The nozzle unit discharges the thermoplastic resin melted by the first heating unit. The hot air blowing unit performs fiber forming by blowing high-temperature gas produced by the hot air heating unit to the melted thermoplastic resin discharged by the nozzle unit and by extending the thermoplastic resin. The second heating unit further heats, extends, and fines produced fibers. The fiber collecting unit collects the thermoplastic resin in a fibrous form which is fined by the second heating unit.

公开(公告)号：US20220001413A1

公开(公告)日：2022-01-06

申请号：US17343343

申请日：2021-06-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOI HATANAKA ,  KAZUTO FUKUDA

IPC: B05C3/12 ,  B05D7/00

Abstract: A coating device configured to apply a coating liquid to both surfaces of a substrate that has a sheet shape and is transported. The coating device includes: a pair of blocks facing each other in a thickness direction of the substrate; and a liquid reservoir that is formed such that the coating liquid is accumulated in a gap between the pair of blocks, and through which the substrate passes, wherein the liquid reservoir includes: an introduction port that is opened on an upstream side in a transport direction of the substrate and through which the substrate is introduced, a discharge port that is opened on a downstream side in the transport direction and through which the substrate is discharged, and side surface portions respectively positioned on both sides in a width direction intersecting the transport direction, at least a side surface portion on one side of the both sides in the width direction among the side surface portions has an exposure port that is opened from the introduction port to the discharge port, and a part of the substrate in the width direction is configured to protrude from the exposure port to an outside of the liquid reservoir.

公开(公告)号：US20190232328A1

公开(公告)日：2019-08-01

申请号：US16255667

申请日：2019-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOI HATANAKA ,  MICHIROU YOSHINO ,  HIROSHI TANABE

IPC: B05C5/02 ,  B05D1/26 ,  B05D3/02 ,  H01M4/04

CPC classification number: B05C5/0254 ,  B05D1/26 ,  B05D3/0272 ,  H01M4/0411

Abstract: A coating method of repeatedly forming a lower surface coated portion obtained by forming a coating film on a lower surface of a base material and a lower surface uncoated portion obtained by exposing the lower surface of the base material between a terminal end of a lower surface coated portion and a starting end of the lower surface coated portion, by switching on/off in supply of a coating liquid to a slit die facing the lower surface of the base material through a discharge port while the base material is transferred, in which a distance between the lower surface of the base material and the discharge port of the slit die is temporarily expanded beyond a distance so far by a base material height changing device during a specific period from termination of the supply of the coating liquid to the slit die to restarting of the supply is provided. Accordingly, a gap between the base material and the slit die can be maintained contrary to an operation in which the base material is drawn into the coating liquid at a terminal end of the lower surface coated portion. Further, the shape of the coating film at the terminal end of the lower surface coated portion is improved and linearity of the terminal end of the lower surface coated portion is improved.

公开(公告)号：US20170327983A1

公开(公告)日：2017-11-16

申请号：US15486385

申请日：2017-04-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOTA NAKAHIRA ,  TOSHIFUMI NAGINO ,  KAZUFUMI MIYATAKE ,  MOTOI HATANAKA

IPC: D04H1/56 ,  D04H1/4291 ,  D01D5/098 ,  D01F6/06 ,  D04H3/16 ,  D04H3/007

CPC classification number: D04H1/56 ,  D01D5/0985 ,  D01F6/06 ,  D04H1/4291 ,  D04H1/4382 ,  D04H3/007 ,  D04H3/016 ,  D04H3/16

Abstract: A non-woven fabric, non-woven fabric producing method and an acoustic absorbent of desirable properties are provided. The non-woven fabric is a non-woven fabric including a plurality of ultrafine fibers configured from a thermoplastic resin, and comprises: a base portion configured by entangling of some of the plurality of ultrafine fibers; and a fiber bundle configured by entangling and bundling of other ultrafine fibers in the plurality of ultrafine fibers, and that is entangled with the base portion. The fiber bundle has a lower void fraction than a void fraction of the base portion.