公开(公告)号：US20240088570A1

公开(公告)日：2024-03-14

申请号：US18273125

申请日：2022-01-28

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Hiroyuki NOMOTO ,  Toshio ENAMI

IPC: H01Q15/14

CPC classification number: H01Q15/14

Abstract: Provided are a structure and a building material that are capable of reflecting radio waves over a wide range of space. Provided is a structure comprising a radio wave reflector including a radio wave reflecting material for reflecting radio waves, wherein when the radio wave reflector is caused to reflect a radio wave at an incident angle of an incident wave of 15 degrees or more and 75 degrees or less at a frequency of the incident wave of 3 GHz or more and 5 GHz or less, 25 GHz or more and 30 GHz or less, or 150 GHz or more and 300 GHz or less, the intensity of a reflective wave as specular reflection of the incident wave is −30 dB or more relative to the incident wave, and in a virtual plane including an incident direction of the incident wave and a reflection direction of the reflective wave, when reception angular positions of the reflective wave are varied within an angle range of −15 degrees or more and +15 degrees or less with respect to the specular reflection direction, kurtosis of distribution of intensity of the reflective wave at each of the reception angular positions is −0.4 or less at least at one frequency.

公开(公告)号：US20250125532A1

公开(公告)日：2025-04-17

申请号：US18834111

申请日：2022-12-23

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Hiroyuki NOMOTO

IPC: H01Q15/14

Abstract: Provided are a radio wave reflector and building material that have flexibility and reflect radio waves while the intensity thereof is maintained. A radio wave reflector 11 for reflecting radio waves, wherein when the radio wave reflector 11 is in a flat state and is caused to reflect a radio wave at an incident angle of an incident wave of 15 degrees or more and 75 degrees or less, the intensity of a reflective wave as specular reflection of the incident wave is −30 dB or more relative to the intensity of the incident wave at least at one frequency; the change rate of the surface resistivity R2 of the radio wave reflector 11 curved along a curved surface with a curvature radius of 200 mm with respect to surface resistivity R1 of the radio wave reflector 11 in a flat state is −10% or more and 10% or less; and the radio wave reflector 11 has a flexural modulus of 0.05 GPa or more and 4 GPa or less.

公开(公告)号：US20180273813A1

公开(公告)日：2018-09-27

申请号：US15763292

申请日：2016-09-29

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Juichi FUKATANI ,  Hiroyuki NOMOTO

IPC: C09J129/14 ,  C08F16/38 ,  C08J3/24 ,  C09J4/06 ,  C09J133/12 ,  C09J163/00

CPC classification number: C09J129/14 ,  C08F2/44 ,  C08F8/28 ,  C08F8/48 ,  C08F16/38 ,  C08F216/06 ,  C08F216/38 ,  C08F2810/20 ,  C08J3/24 ,  C08J2329/14 ,  C09J4/06 ,  C09J133/12 ,  C09J163/00 ,  C08F261/12 ,  C08K5/0025 ,  C08F226/02 ,  C08F218/04

Abstract: The present invention aims to provide an adhesive that has excellent adhesiveness to both organic materials (particularly, polycarbonate, acrylic, and nylon) and inorganic materials, is capable of exhibiting excellent transparency and toughness, and also has excellent handleability. The present invention relates to an adhesive containing: a modified polyvinyl acetal having an imine structure; a reactive diluent; and a polymerization initiator.

公开(公告)号：US20250105525A1

公开(公告)日：2025-03-27

申请号：US18724834

申请日：2022-12-23

Applicant: SEKISUI CHEMICAL CO., LTD

Inventor： Hiroyuki NOMOTO ,  Yasuaki IDE ,  Munehiro HATAI

IPC: H01Q15/14

Abstract: Provided is a radio wave reflector that can reflect radio waves while the intensity thereof is maintained and that can maintain the scenery. The radio wave reflector of the present invention is a radio wave reflector for reflecting radio waves, wherein the intensity of a reflective wave as specular reflection of an incident wave is −30 dB or more relative to the intensity of the incident wave at a frequency, and the radio wave reflector has a total light transmittance of 65% or more as measured using a standard illuminant D65.

公开(公告)号：US20200001366A1

公开(公告)日：2020-01-02

申请号：US16485558

申请日：2018-02-20

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Hiroyuki NOMOTO ,  Masao SASADAIRA

IPC: B22F3/11 ,  B22F3/10

Abstract: Provided are a sintered material excellent in both thermal stress and bonding strength; a connection structure comprising the sintered material; a composition for bonding with which the sintered material can be produced; and a method for producing the sintered material. The sintered material comprises a base portion, one or more buffer portions, and one or more filling portions. The buffer portions and the filling portions are dispersed in the base portion. The base portion is a metal sintered body, each buffer portion is formed from at least one of a pore and a material that is not the same as that of the sintered body, and each filling portion is formed from at least one of particles and fibers. The sintered material satisfies A>B, where A is the kurtosis of volume distribution of the base portions in a three-dimensional image of the sintered material, and B is the kurtosis of volume distribution of the base portions in a three-dimensional image of the sintered material from which the filling portions are removed.