公开(公告)号：US10232293B2

公开(公告)日：2019-03-19

申请号：US15411277

申请日：2017-01-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Motomura ,  Nobuhiro Nishizaki ,  Kouji Ikeda ,  Takahiko Murata ,  Takatoshi Mitsushima

IPC: B01D53/22 ,  B01D39/16 ,  B32B3/28 ,  B32B5/02 ,  B32B5/26 ,  B32B7/14 ,  D04H1/56 ,  D04H1/593 ,  D04H1/62 ,  B32B37/12 ,  B32B37/00

Abstract: A fiber laminate includes a first fiber sheet containing first fibers, a second fiber sheet laminated on the first fiber sheet and containing second fibers, and an adhesive interposed between the first fiber sheet and the second fiber sheet. The adhesive is disposed to form a linear first region in the fiber laminate when viewed from a normal direction of a principal surface of the fiber laminate. The first fiber sheet and the second fiber sheet are adhered to each other via the first region. A gap is formed between the first fiber sheet and the second fiber sheet in a second region other than the first region.

公开(公告)号：US10220340B2

公开(公告)日：2019-03-05

申请号：US14870606

申请日：2015-09-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Koji Motomura ,  Takahiko Murata ,  Hiroto Sumida ,  Takahiro Kurokawa ,  Takatoshi Mitsushima

IPC: B01D53/22 ,  B01D39/18 ,  B32B5/02 ,  B32B5/24 ,  B32B5/26 ,  B32B5/08 ,  B32B5/22 ,  B01D39/16 ,  B32B5/12

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric that comprises first fibers, and a second nonwoven fabric that comprises second fibers. The second nonwoven fabric is laminated on the first nonwoven fabric. An average fiber diameter D1 of the first fibers and an average fiber diameter D2 of the second fibers satisfy a relation of D1>D2. In viewed from a side of a principal surface of the second nonwoven fabric being not opposed to the first nonwoven fabric, a total area of first portions of the second fibers superimposed on the first fibers and existing on the nearer side than the first fibers is larger than a total area of second portions of the second fibers existing and superimposed on voids S of the first nonwoven fabric formed of the first fibers.

公开(公告)号：US10464285B2

公开(公告)日：2019-11-05

申请号：US15373837

申请日：2016-12-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kouji Ikeda ,  Koji Motomura ,  Takatoshi Mitsushima

IPC: B32B7/12 ,  B32B5/02 ,  B32B37/12 ,  B32B38/00 ,  B32B37/00 ,  B32B5/26 ,  B32B7/14

Abstract: A laminate includes a first sheet containing first fibers, a second sheet laminated on the first sheet and containing second fibers, and an adhesive disposed between the first sheet and the second sheet. At least a part of the adhesive is disposed in an end portion along the edge side of the laminate so as to form a linear first region, and the first sheet is adhered to the second sheet via the first region. Alternatively, a mass per unit area of the adhesive present in an end portion along an edge side of the laminate is larger than a mass per unit area of the adhesive present in a portion near a central part of the laminate rather than the end portion.

公开(公告)号：US10174441B2

公开(公告)日：2019-01-08

申请号：US15178815

申请日：2016-06-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Taichi Nakamura ,  Takayoshi Yamaguchi ,  Hiroto Sumida ,  Takahiro Kurokawa ,  Takatoshi Mitsushima

IPC: B01D53/22 ,  D01D5/00 ,  B32B5/02 ,  B32B5/26 ,  B01D39/16 ,  B01D39/20 ,  B32B5/08 ,  B32B7/02 ,  B32B7/12

Abstract: A laminated nonwoven fabric (NF) includes a first NF containing first fibers and a second NF containing second fibers and laminated on the first NF, and has a cut-off edge at an end thereof. An average diameter of the first fibers is larger than that of the second fibers not more than 3 μm. 50% by mass to 70% by mass, inclusive, of the second fibers satisfy x≥y, and 5% by mass to 30% by mass, inclusive, thereof satisfy x

公开(公告)号：US10464003B2

公开(公告)日：2019-11-05

申请号：US15696221

申请日：2017-09-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Motomura ,  Hiroto Sumida ,  Takahiko Murata ,  Takatoshi Mitsushima ,  Keiji Fujiwara

IPC: B01D53/02 ,  B01D46/00 ,  B01D46/52 ,  B01D53/04

Abstract: There is provided a filter which includes a fiber layer and an adsorbent. The fiber layer includes fiber. The adsorbent is held in the fiber and adsorbs a chemical substance. The filter is divided into a plurality of sections by a fold. Each of the plurality of sections includes a first end portion positioned along the fold, a center portion adjacent to the first end portion, and a second end portion which counterposes the first end portion with the center portion interposed. The density of the adsorbent at the center portion is greater than the density of the adsorbent at the first end portion and at the second end portion.

公开(公告)号：US10195556B2

公开(公告)日：2019-02-05

申请号：US15191522

申请日：2016-06-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Motomura ,  Takahiko Murata ,  Hiroto Sumida ,  Takatoshi Mitsushima ,  Keiji Fujiwara

IPC: B01D39/00 ,  B01D39/16 ,  D04H3/02

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric containing first fibers, a second nonwoven fabric containing second fibers, a third nonwoven fabric containing third fibers, and an adhesive. The second nonwoven fabric is laminated on the first nonwoven fabric, and the third nonwoven fabric is laminated on the second nonwoven fabric on an opposite side with respect to the first nonwoven fabric. The adhesive is disposed between the first nonwoven fabric and the third nonwoven fabric. An average fiber diameter of the second fibers is equal to or less than 3 μm, and is smaller than an average fiber diameter of the first fibers. The third nonwoven fabric has a protrusion including a part of the third fibers entangled with each other on a surface facing the second nonwoven fabric. At least a part of the adhesive is disposed between the protrusion and the first nonwoven fabric.

公开(公告)号：US10173158B2

公开(公告)日：2019-01-08

申请号：US15167820

申请日：2016-05-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Motomura ,  Hiroto Sumida ,  Takahiro Kurokawa ,  Taichi Nakamura ,  Takayoshi Yamaguchi ,  Takatoshi Mitsushima

IPC: B01D39/16 ,  B32B5/02 ,  B32B7/12 ,  B32B5/08 ,  B32B5/26 ,  B32B7/02 ,  B32B7/14 ,  B32B37/00 ,  B32B37/24 ,  B32B37/12

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric and a second nonwoven fabric. The first nonwoven fabric contains charged first fibers. The second nonwoven fabric contains second fibers, and is laminated on the first nonwoven fabric. A fiber diameter of the first fibers is larger than a fiber diameter of the second fibers.

公开(公告)号：US20170252685A1

公开(公告)日：2017-09-07

申请号：US15411277

申请日：2017-01-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Motomura ,  Nobuhiro Nishizaki ,  Kouji Ikeda ,  Takahiko Murata ,  Takatoshi Mitsushima

IPC: B01D39/16 ,  B32B5/02 ,  D04H1/56 ,  B32B7/14 ,  B32B37/12 ,  B32B37/10 ,  B32B3/28 ,  B32B5/26

CPC classification number: B01D39/163 ,  B01D2239/0622 ,  B01D2239/0681 ,  B01D2239/0686 ,  B01D2239/10 ,  B01D2239/1233 ,  B32B3/28 ,  B32B5/022 ,  B32B5/024 ,  B32B5/026 ,  B32B5/26 ,  B32B7/14 ,  B32B37/0053 ,  B32B37/1207 ,  B32B37/1292 ,  B32B2037/1215 ,  B32B2250/03 ,  B32B2250/20 ,  B32B2255/02 ,  B32B2255/26 ,  B32B2262/0238 ,  B32B2262/0246 ,  B32B2262/0253 ,  B32B2262/0261 ,  B32B2262/0276 ,  B32B2262/0284 ,  B32B2262/0292 ,  B32B2262/062 ,  B32B2262/101 ,  B32B2307/724 ,  B32B2432/00 ,  B32B2437/00 ,  B32B2457/10 ,  B32B2457/18 ,  B32B2535/00 ,  D04H1/56 ,  D04H1/593 ,  D04H1/62 ,  D10B2505/04

Abstract: A fiber laminate includes a first fiber sheet containing first fibers, a second fiber sheet laminated on the first fiber sheet and containing second fibers, and an adhesive interposed between the first fiber sheet and the second fiber sheet. The adhesive is disposed to form a linear first region in the fiber laminate when viewed from a normal direction of a principal surface of the fiber laminate. The first fiber sheet and the second fiber sheet are adhered to each other via the first region. A gap is formed between the first fiber sheet and the second fiber sheet in a second region other than the first region.