Nitto-Denko Corporation

Yuuki Takeda

Hironobu Machinaga

Takehiro Ui

Hiroichi Ukei

Kazuto Yamagata

Motoki Haishi

Yosuke Nakanishi

Ryosuke Aoki

An impedance matching filmincludes a mixture containing indium oxide and tin oxide and being a main component of the impedance matching film, the mixture having an amorphous structure. The impedance matching filmfor impedance matching has a Hall mobility of 5 cm/(V·s) or more. The impedance matching filmhas a thickness of 16 nm or more and less than 100 nm.

Impedance matching film for radio wave absorber, impedance matching film-attached film for radio wave absorber, radio wave absorber, and laminate for radio wave absorber

An electromagnetic wave absorber () includes a dielectric layer (), a resistive layer (), and an electrically conductive layer (). The resistive layer () is disposed on one principal surface of the dielectric layer (). The electrically conductive layer () is disposed on the other principal surface of the dielectric layer () and has a sheet resistance lower than a sheet resistance of the resistive layer (). The resistive layer () is a layer that includes tin oxide or titanium oxide as a main component or a layer that is made of indium tin oxide including 40 weight % or more of tin oxide.

Electromagnetic wave absorber and electromagnetic wave absorber-attached molded article

An electromagnetic wave absorber (a) includes a first layer () and an electrically conductive layer (). The first layer () is a dielectric layer or a magnetic layer. The electrically conductive layer () is provided on at least one surface of the first layer. A product of a Young's modulus of the first layer () and a thickness of the first layer () is 0.1 to 1000 MPa&#xb7;mm. The first layer () has a relative permittivity of 1 to 10.

Electromagnetic wave absorber and molded article with electromagnetic wave absorber

A lamp reflector () includes a mirror surface () and a laminate (). The mirror surface () is a surface for reflecting light from a light source () to guide the light in a predetermined direction. The laminate () covers at least a part of the mirror surface () to absorb an electromagnetic wave having a specific frequency of 20 GHz to 90 GHz. The laminate () allows the light from the light source () to transmit therethrough toward the mirror surface ().

Lamp reflector and laminate for reflector

An electromagnetic wave absorber () includes: a first layer () being a dielectric layer or a magnetic layer; and a conductive layer () provided on at least one surface of the first layer (). The conductive layer () has a sheet resistance of 100&#x3a9;/&#x25a1; or less after the electromagnetic wave absorber () is exposed to an environment having a temperature of 85&#xb0; C. and a relative humidity of 85% for 1000 hours. The electromagnetic wave absorber () has a flexural rigidity of 7000 MPa&#xb7;mmor less.

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Osaka, Japan

Yuuki Takeda