公开(公告)号：US20210176550A1

公开(公告)日：2021-06-10

申请号：US16761367

申请日：2018-11-07

Applicant: NITTO DENKO CORPORATION

Inventor： Yosuke SUGAYA ,  Bunta HIRAI ,  Takeo INOUE

IPC: H04R1/08 ,  H04R1/44 ,  H04M1/03

Abstract: The waterproof sound-transmitting member of the present disclosure includes: a waterproof sound-transmitting membrane configured to prevent entry of water while permitting sound to pass therethrough, and a support layer joined to a main surface of the waterproof sound-transmitting membrane. The waterproof sound-transmitting membrane has an air permeability of 10,000 seconds/100 mL or more as expressed by Gurley number, the support layer includes a resin foam material and has a through hole extending in a thickness direction thereof and serving as a path for sound transmitted through the waterproof sound-transmitting membrane, and a side air permeability of the support layer between the through hole and an outer peripheral side surface of the support layer when the support layer is compressed in the thickness direction thereof at a compression ratio of 20% is 0.1 mL/(min·mm3) or more as a value per unit volume of the support layer.

公开(公告)号：US20200048500A1

公开(公告)日：2020-02-13

申请号：US16604395

申请日：2018-04-17

Applicant: NITTO DENKO CORPORATION

Inventor： Takeo INOUE ,  Tamao FUKUSHIMA

IPC: C09J7/24 ,  C09J7/38 ,  C09J7/40

Abstract: A laminate of the present disclosure is a laminate including a resin film and a separator. The resin film has a tensile strength of 30 N/10 mm or less. The resin film and the separator are joined to each other by an adhesive layer. A peel surface formed when the separator is peeled from the resin film is positioned between the resin film and the adhesive layer. The laminate of the present disclosure is suitable for supplying a low-strength resin film in a state without an adhesive layer. The laminate of the present disclosure is also a film supply member that is convenient in terms of handling, storage, etc.

公开(公告)号：US20240173947A1

公开(公告)日：2024-05-30

申请号：US18284401

申请日：2022-03-25

Applicant: NITTO DENKO CORPORATION

Inventor： Takeo INOUE ,  Eisaku TANAKA ,  Bunta HIRAI ,  Tomohiro KONTANI

IPC: B32B27/08 ,  B32B5/18 ,  B32B7/12 ,  B32B27/06 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  H01L21/683

CPC classification number: B32B27/08 ,  B32B5/18 ,  B32B7/12 ,  B32B27/065 ,  B32B27/281 ,  B32B27/286 ,  B32B27/304 ,  B32B27/308 ,  B32B27/322 ,  H01L21/6836 ,  B32B2266/025 ,  B32B2307/306 ,  B32B2307/724 ,  B32B2307/748 ,  B32B2457/00

Abstract: A member supplying sheet includes two or more protective cover members each configured to be placed on a face of an object that has an opening on the face; and a substrate sheet with the two or more protective cover members arranged on a surface thereof. The protective cover members each include a laminate including: a protective membrane shaped to cover the opening when the protective cover member is placed on the face; and a carrier film. The substrate sheet includes a substrate layer and an adhesive layer laminated on the substrate layer. The carrier film is adhered to the substrate layer via the adhesive layer. The surface free energy of the carrier film on a surface thereof on the side closer to the substrate sheet is 20 mJ/m2 or more. The adhesive layer has a tack force of 100 mN/mm2 or less.

公开(公告)号：US20210251095A1

公开(公告)日：2021-08-12

申请号：US16973190

申请日：2020-04-24

Applicant: NITTO DENKO CORPORATION

Inventor： Tamao FUKUSHIMA ,  Takeo INOUE ,  Yu KAMAMOTO ,  Hisae KITAGAWA

IPC: H05K5/06 ,  H04R1/44

Abstract: A waterproof membrane of the present disclosure has an insertion loss of 5.0 dB or less for sound with a frequency of 1 kHz, and an insertion loss of 5.0 dB or less for sound with a frequency of 10 kHz when a permeation region for sound of the waterproof membrane has an area of 1.3 mm2. The waterproof membrane of the present disclosure can cope with further size reduction of the permeation region. A waterproof member of the present disclosure includes the above-mentioned waterproof membrane of the present invention and a support member joined to the waterproof membrane.

公开(公告)号：US20250018684A1

公开(公告)日：2025-01-16

申请号：US18687541

申请日：2022-08-31

Applicant: NITTO DENKO CORPORATION

Inventor： Kyoko ISHII ,  Yosuke SUGAYA ,  Takeo INOUE ,  Tomohiro KONTANI ,  Shimpei YAKUWA ,  Shunji IMAMURA

IPC: B32B17/10 ,  B32B3/26 ,  B32B5/02 ,  B32B5/16 ,  B32B5/18 ,  B32B17/06 ,  B32B27/06 ,  B32B27/08 ,  B32B27/12 ,  B32B27/14 ,  B32B27/28 ,  B32B27/32 ,  H01L23/10

Abstract: A cover member suitable for suppressing damage to a semiconductor device package includes: a cover sheet having a shape configured to cover an object in a state of being placed on a placement face; and an adhesive layer joined to the cover sheet and configured to fix the cover member to the placement face. The adhesive layer includes a double-sided adhesive sheet. The double-sided adhesive sheet has a structure in which a first adhesive agent layer, a substrate, and a second adhesive agent layer are laminated in this order. The substrate has a porous structure. The substrate has a porosity of 30% or more. When the porosity of the substrate is 30% or more and 50% or less, the substrate has an average pore diameter of 10 μm or more, and when the porosity of the substrate is more than 50%, the average pore diameter is 0.05 μm or more.

公开(公告)号：US20240286389A1

公开(公告)日：2024-08-29

申请号：US18573110

申请日：2022-07-01

Applicant: NITTO DENKO CORPORATION

Inventor： Eisaku TANAKA ,  Takeo INOUE ,  Kyoko ISHII

IPC: B32B27/06 ,  B32B5/18 ,  B32B27/08 ,  B32B27/32 ,  B32B27/36 ,  C09J11/04 ,  C09J133/08 ,  C09J161/06 ,  C09J163/00

CPC classification number: B32B27/065 ,  B32B5/18 ,  B32B27/08 ,  B32B27/322 ,  B32B27/36 ,  C09J11/04 ,  C09J133/08 ,  C09J161/06 ,  C09J163/00 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2266/025 ,  B32B2307/724 ,  B32B2307/737 ,  B32B2457/00

Abstract: A provided protective cover member is a member configured to be placed on a face of an object, the face having an opening. The protective cover member includes a laminate, and the laminate includes: a protective membrane having a shape configured to cover the opening when the protective cover member is placed on the face; and an adhesive layer. When a portion, of the protective membrane, coinciding with the adhesive layer when viewed in a direction perpendicular to a principal surface of the protective membrane is defined as a fixed portion of the protective membrane, an exposed surface of the protective membrane on a side opposite to a side, of the protective membrane, facing the adhesive layer has a region A overlapping the fixed portion when viewed in the perpendicular direction and having a contact angle of 55 degrees or more for methanol.

公开(公告)号：US20220266575A1

公开(公告)日：2022-08-25

申请号：US17626334

申请日：2020-07-03

Applicant: NITTO DENKO CORPORATION

Inventor： Yuichi ABE ,  Tomohiro KONTANI ,  Takeo INOUE ,  Bunta HIRAI

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/32 ,  B32B27/28

Abstract: A protective cover member includes a laminate including: a protective membrane having a shape configured to cover an opening when the protective cover member is placed on the face of an object; a substrate film joined to the protective membrane; and a first adhesive layer configured to fix the protective cover member to the face, wherein an outer peripheral surface of the protective cover member has a step in a laminating direction of the laminate, a first portion of the protective cover member protrudes at the step more outward than a second portion of the protective cover member does when the protective cover member is placed on the face, the first portion being positioned farther from the face than the step, the second portion being positioned closer to the face than the step, and the protective membrane and the substrate film are positioned in the first portion.

公开(公告)号：US20220312091A1

公开(公告)日：2022-09-29

申请号：US17605119

申请日：2020-04-24

Applicant: NITTO DENKO CORPORATION

Inventor： Yu KAMAMOTO ,  Takeo INOUE ,  Tamao FUKUSHIMA ,  Hisae KITAGAWA

IPC: H04R1/02 ,  H04R1/28

Abstract: The conversion element member of the present disclosure includes: a conversion element having an opening capable of functioning as a ventilation port and/or a sound-transmitting port; and a waterproof membrane. The conversion element has an outer surface provided with the opening. The waterproof membrane is joined, at a joining portion thereof, to the outer surface of the element so as to cover the opening, the joining portion having a shape surrounding the opening when viewed in a direction perpendicular to the outer surface. The waterproof membrane has a non-joining portion defined as a portion surrounded by the joining portion when viewed in the direction, the non-joining portion having a region overlapping the outer surface when viewed in the direction. A spacing distance D1 between the membrane and the outer surface in the region is 0.01 mm to X mm, where X represents, in an indentation test on the waterproof membrane.

公开(公告)号：US20200148918A1

公开(公告)日：2020-05-14

申请号：US16604403

申请日：2018-04-17

Applicant: NITTO DENKO CORPORATION

Inventor： Takeo INOUE ,  Tamao FUKUSHIMA

IPC: C09J7/29 ,  B32B7/08 ,  B32B7/12 ,  B32B27/32 ,  B32B27/36

Abstract: A laminate of the present disclosure is a laminate including: a resin film that can function as a waterproof air-permeable membrane and/or a waterproof sound-transmitting membrane; and a separator. The resin film and the separator are joined to each other by an adhesive layer. A peel surface formed when the separator is peeled from the resin film is positioned between the resin film and the adhesive layer. The laminate of the present disclosure can supply the resin film that can function as a waterproof air-permeable membrane and/or a waterproof sound-transmitting membrane in a state of being highly flexible in terms of shape and method of joining to an opening of a housing. The laminate of the present disclosure can be supplied also in the form of a roll with excellent storage property, transportability, etc.