Fujifilm Corporation

Ricoh Company, Ltd.

Sony Corporation

Other

Kyowa Hakko Kogyo Co., Ltd.

Kyowa Yuka Co., Ltd.

Yamaguchi, Jinichi

Tatsuo Mikami

Hidehiro Mochizuki

Tohru Yashiro

Yuki Nakamura

Toshiyuki Kitahara

Toshihide Aoshima

Atsushi Miyamoto

Jinichi Yamaguchi

Wataru Kikuchi

Kazutoshi Katayama

Toshio Sasaki

Tetsuya Watanabe

Tomomi Ishimi

Hiroshi Toyoda

Ikuo Shimizu

Motoharu Kinugasa

Osamu Shimizu

Katsuyuki Yamada

Kazumi Nii

Masaomi Makino

Michiaki Shinotsuka

Masaru Shinkai

Yoichi Hosoya

Eiji Noda

Masashi Shirata

Hirotoshi Yoshizawa

Tetsuya Ogata

Hiroaki Tsuyama

Tatsuo Ishikawa

Takumi Nakamura

Hiroyuki Iwasa

Mika Imamura

Norio Nishida

Takuo Ohishi

Reiko Inushima

Masamichi Kondo

Atsushi Tatsugawa

Shunichi Hoshino

Kayo Katoh

Akiko Henmi

Hiroshi c/o Kyowa Hakko Chemical Co Ltd Toyoda

Tohru Ebinakokubu Park Heights Yashiro

Motoharu c/o Kyowa Hakko Chemical Co Ltd Kinugasa

Ikuo c/o Kyowa Hakko Chemical Co Ltd Shimizu

There is provided an electromagnetic wave shielding material including a multilayer structure having a magnetic layer containing magnetic particles, between two metal layers, in which a part or whole of an edge surface of the magnetic layer is coated with a coating material.

Electromagnetic wave shielding material, electronic component, and electronic apparatus

The main object of the present invention is to provide a photosensitive resin composition with which a cured film that exhibits a high magnetic permeability real part μ' and a low magnetic loss tan δ in the high frequency region can be formed.

Photosensitive resin composition, cured film, inductor and antenna

Provided are a power supply member in a wireless power supply system, and applications of the power supply member. The power supply member includes: a first magnetic sheet that includes a first metal magnetic powder and a first resin, the first metal magnetic powder having a ratio of a length of a long side to a length of a short side is more than 1.0; a coil that is wound around and arranged on one surface of the first magnetic sheet; and a second magnetic sheet that is arranged on the same surface of the first magnetic sheet as the surface where the coil is arranged, is arranged on at least one of a side inside of an inner peripheral end of the coil or a side outside of an outer peripheral end of the coil, and includes a second metal magnetic powder and a second resin.

Power supply member, magnetic sheet for coil arrangement, method of manufacturing magnetic sheet for coil arrangement

To provide magnetoplumbite-type hexagonal ferrite particles represented by Formula (1) and having a single crystal phase, and the application. In Formula (1), A represents at least one metal element selected from the group consisting of Sr, Ba, Ca, and Pb, and x satisfies 1.5&#x2264;x&#x2264;8.0.AFeAlO&#x2003;&#x2003;Formula (1)

Particles of magnetoplumbite-type hexagonal ferrite, method for manufacturing the same, and radio wave absorber

A radio wave absorber including: a support; and a linear absorber that is disposed on at least one surface of the support, has an occupancy per unit volume on the support of 0.05 to 0.70, includes a radio wave absorption material and a binder, and has a maximum length on a cross section perpendicular to a longitudinal direction of 25% or less of a wavelength of the radio wave, and a manufacturing method thereof.

Radio wave absorber and manufacturing method of radio wave absorber

Provided is a radio wave absorber including: a support; a first radio wave absorption layer having a flat plate shape that is disposed on a surface of the support and includes a radio wave absorption material and a binder; and second radio wave absorption layers that are erected on a surface of the first radio wave absorption layer, include a radio wave absorption material and a binder, and are conical protrusions having bottom surfaces of which outer peripheral portions are in contact with each other, in which a distance between apexes of the conical protrusions adjacent to each other is 0.5 mm to &#x3bb;mm, in a case where a wavelength of a radio wave to be absorbed is set as &#x3bb;mm, and a manufacturing method of a radio wave absorber.

Provided is a coating-type magnetic recording medium for microwave assisted recording. A magnetic recording medium for microwave assisted recording having a magnetic layer including ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer exhibits an intrinsic ferromagnetic resonance frequency of 30.0 GHz or more. A magnetic recording device including the magnetic recording medium and a magnetic head for microwave assisted recording.

Magnetic recording medium for microwave assisted recording and magnetic recording device

The magnetic recording medium comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, and further comprises a compound denoted by Formula (1): wherein, in Formula (1), X denotes &#x2014;O&#x2014;, &#x2014;S&#x2014;, or NR&#x2014;; each of R and Rindependently denotes a hydrogen atom or a monovalent substituent; L denotes a divalent connecting group; Z denotes a partial structure of valence n comprising at least one group selected from the group consisting of carboxyl groups and carboxylate groups; m denotes an integer of greater than or equal to 2, and n denotes an integer of greater than or equal to 1.

Magnetic recording medium and coating composition for magnetic recording medium

The magnetic recording medium composition contains ferromagnetic powder, binder, and a crosslinkable component selected from the group consisting of a component capable of forming a crosslinking structure by a radical reaction, a component capable of forming a crosslinking structure by an ionic reaction, and a component capable of forming a crosslinking structure by a pericyclic reaction, wherein the crosslinkable component contains at least polyester, and the polyester has a weight average molecular weight ranging from 1,000 to 20,000, as well as contains, per molecule, one or more acidic groups, and one or more reactive groups selected from the group consisting of a radical reactive group, an ionic reactive group, and a pericyclic reactive group.

Magnetic recording medium composition and method of manufacturing magnetic recording medium

Method for manufacturing an optical information recording medium includes: preparing a substrate material where a first guide groove has been formed on a first side of the substrate material; forming a second guide groove by applying an energy-curable resin material between a second side of the substrate material opposite to the first side and a stamper and subsequently curing the energy-curable resin material to form a substrate; providing at least one recording layer and a cover layer on a first side of the substrate where the first guide groove has been formed, while holding the substrate with the stamper left unremoved from the substrate to protect the second guide groove; and exposing the second guide groove by removing the stamper and providing at least one recording layer and a cover layer on a second side of the substrate where the second guide groove has been formed.

Method for manufacturing optical information recording medium

An aspect of the present invention relates to a magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and is denoted by formula (1): wherein, in formula (1), Adenotes a monovalent polymer group, each of Rand Rindependently denotes a single bond or a divalent connecting group, Rdenotes a hydrogen atom or a monovalent substituent, m denotes an integer of equal to or greater than 2, multiple instances of R, R, A, and Rthat are present can be identical or different, Adenotes a hydrogen atom or a monovalent substituent denoted by &#x2014;OR&#x2014;Z, Rdenotes a single bond or a divalent connecting group, Z denotes a monovalent acid group, among multiple instances of Athat are present, at least one denotes a monovalent group denoted by &#x2014;O&#x2014;R&#x2014;Z, and X denotes a connecting group of valence m.

Magnetic recording medium and magnetic coating composition for magnetic recording medium

A multilayer optical information recording disk comprising a plurality of recording layers and intermediate layers provided between the plurality of recording layers, and a method for manufacturing the same are provided. At least one of two intermediate layers disposed adjacent to respective sides of one recording layer is made of adhesive. Each of the recording layers includes a polymer binder and a dye dispersed in the polymer binder or includes a polymer to which a dye is bonded. Each recording layer is configured such that the dye absorbs a recording beam and generates heat which deforms the recording layer, causing an interface between the recording layer and the intermediate layer made of adhesive to have a protrusive shape protruding into the intermediate layer, thereby recording information thereat. The interface between the recording layer and the recording layer made of adhesive has a groove for track-following servo control.

Multilayer optical information recording disk and method for manufacturing same

An aspect of the present invention relates to a magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and is denoted by formula (1): wherein, in formula (1), A denotes a monovalent substituent, Rdenotes a single bond or a divalent connecting group, and m denotes an integer ranging from 2 to 4, multiple instances of A and Rthat are present can be identical or different, at least one of the multiple instances of A that are present denotes a monovalent polymer group and X denotes a heterocyclic group of valence m.

A method for manufacturing a multilayer structure sheet for manufacturing an optical information recording medium having a multilayer structure with a plurality of recording layers comprises: an adhesive layer forming step of forming an adhesive layer on a first release sheet to obtain a first sheet; a recording layer forming step of forming a recording layer containing a polymer on a second release sheet or a release assisting layer formed on the second release sheet to obtain a second sheet; a laminating step of laminating the recording layer of the second sheet on the adhesive layer of the first sheet to obtain a third sheet in which the second sheet is laid on the first sheet; and a heating step of heating the second sheet.

Method for manufacturing multilayer structure sheet, and optical information recording medium

An optical information recording medium includes at least one recording layer. The recording layer includes a recording material comprising a polymer compound to which a one-photon absorption dye is bonded, and a coupling strength &#x394;between the one-photon absorption dye and the polymer compound in the recording material is higher than a coupling strength estimated to be exerted between the same one-photon absorption dye and the same polymer compound if the one-photon absorption dye is dispersed in the polymer compound in the recording material.

Optical information recording medium

Growing community of inventors

Kanagawa, Japan

Tatsuo Mikami