Fujifilm Corporation

Fuji Photo Film Company, Limited

Yoichi Hosoya

Junichi Yamanouchi

Ryoji Nishimura

Junichiro Hosokawa

Masaaki Miki

Masashi Shirata

Kouichi Yokota

Kiyoshi Morimoto

Tadashi Inaba

Shigeharu Urabe

Mitsuo Saitou

Kenji Naoi

Hideyuki Shirai

Nori Miyagishima

Koichi Yokota

Tetsuo Kikuchi

Hidenori Takahashi

Makoto Kikuchi

Tatsuo Mikami

Jiro Tsukahara

Naoharu Kiyoto

Makoto Sawada

Toshihide Aoshima

Genichi Furusawa

Tokuju Oikawa

Yusuke Mochizuki

Satoshi Yoneyama

Yasushi Araki

Kenichi Ishizuka

Hirotaka Takishita

Yoshihiro Aburaya

Takeshi Funakubo

Katsuyuki Nukui

Isao Tsuyuki

Isao Tuyuki

Kazumori Minami

Kouchi Yokota

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 composition includes a metal particle and a resin and has a wavelength band A having a wavelength band width of 1 &#x3bc;m or more in a wavelength range of 1 to 14 &#x3bc;m and a wavelength band B having a lower absorbance than the wavelength band A and having a wavelength band width of 1 &#x3bc;m or more, and a ratio A/Bbetween a minimum value Aof an absorbance of the wavelength band A and a maximum value Bof an absorbance of the wavelength band B is 3 or more.

Composition, formed body, laminate, far infrared ray transmitting filter, solid-state imaging element, infrared camera, and infrared sensor

A production method for metal oxide particles includes: obtaining precursor particles of a metal oxide by performing a synthesis reaction of the precursor particles in the presence of an organic compound; and converting the obtained precursor particles into metal oxide particles by heating an aqueous solution containing the precursor particles to 300&#xb0; C. or higher and pressurizing the aqueous solution at a pressure of 20 MPa or higher.

Production method for metal oxide particles, metal oxide powder, and magnetic recording medium

Hexagonal ferrite powder has an average particle size falling within a range of 10 nm to 50 nm, a switching field distribution SFDmeasured at a temperature of 23&#xb0; C. that is less than or equal to 0.80, and a ratio of a switching field distribution SFDthat is measured at a temperature of &#x2212;190&#xb0; C. to the SFD(SFD/SFD) that is greater than 0.80.

Hexagonal ferrite powder and magnetic recording medium

The magnetic recording medium has a magnetic layer containing ferromagnetic powder and binder on a nonmagnetic support, wherein the ferromagnetic powder is hexagonal ferrite powder containing, based on number of particles, greater than or equal to 80% isotropic particles that satisfy the relation 1: major axis length/minor axis length &#x3c;1.2, with an average particle size of the hexagonal ferrite powder being less than or equal to 30 nm, and a squareness in a vertical direction of the magnetic layer being greater than or equal to 0.65 but less than or equal to 1.00.

Magnetic recording medium using hexagonal ferrite powder

A solution is to produce an acid gas separation composite membrane provided with an acid gas separation facilitated membrane on a porous support, including; arranging of a coating liquid for acid gas separation formed through dispersing or dissolving into water a polyvinyl acetal compound formed through crosslinking, by an acetal bond, block copolymers formed through bonding of a polymer block formed of polyvinyl alcohol and a polymer block formed of polyacrylate through a linking group, an acid gas carrier and at least one kind of anion other than hydroxide ion, carboxyl ion, carbonate ion and bicarbonate ion, and coating of the coating liquid for acid gas separation onto a hydrophobic surface of the porous support having hydrophobicity at least on one surface to form the acid gas separation facilitated transport membrane thereon.

Method for producing acid gas separation composite membrane, and acid gas separation membrane module

An aspect of the present invention relates to hexagonal ferrite powder, which comprises equal to or more than 70% on a particle number basis of isotropic hexagonal ferrite particles satisfying equation (1):major axis length/minor axis length&#x3c;2.0&#x2003;&#x2003;(1),having an average particle size of equal to or greater than 10.0 nm but equal to or less than 35.0 nm, and having a saturation magnetization of equal to or greater than 30 A&#xb7;m/kg.

An acidic gas separation module, which improves gas separation efficiency and reduces pressure loss, includes: a permeating gas collecting tubehaving tube walls in which through holesA are formed; a layered bodythat has at least an acidic gas separation layerand that is wound on the permeating gas collecting tube; and telescope prevention plates(a gas supply sideA and a gas discharge sideB) provided at both end faces in an axial direction of the wound layered body, wherein the ratio (D/D) of the open area ratio Dof the telescope prevention plate on the gas discharge sideB relative to the open area ratio Dof the telescope prevention plate on the gas supply sideA is from 0.5 to 0.9. An acidic gas separation device includes the acidic gas separation module

Acidic gas separation module, acidic gas separation device, and telescope prevention plate

An aspect of the present invention relates to ferromagnetic hexagonal ferrite powder, the average particle size of which is equal to or less than 20 nm, and which comprises, on a particle number basis, equal to or more than 50% of ellipsoid hexagonal ferrite powders satisfying relation (1): 1.2&#x3c;major axis length/minor axis length&#x3c;2.0 . . . (1).

Ferromagnetic hexagonal ferrite powder, method of manufacturing the same, and magnetic recording medium

An aspect of the present invention relates to a method of manufacturing hexagonal ferrite powder, which comprises preparing a hexagonal ferrite precursor-containing water-based solution by stirring and mixing a reaction solution which comprises an iron salt, an alkaline earth metal salt, and a base in a reaction tank, and removing the hexagonal ferrite precursor-containing water-based solution that has been prepared from the reaction tank and continuously feeding the hexagonal ferrite precursor-containing water-based solution into a reaction flow passage while conducting heating and pressurizing to converting the hexagonal ferrite precursor to hexagonal ferrite, wherein the preparation of the hexagonal ferrite precursor-containing water-based solution comprises a continual feed period during which feeding of the iron salt, the alkaline earth metal salt, and the base into a reaction tank which comprises a prereaction solution in which an iron salt and a base are not both present is continuously or intermittently continued, during the continual feed period, at least a base is fed over a feed passage separate from feeding of the iron salt and the alkaline earth metal salt, and an amount of at least one from among the iron salt, the alkaline earth metal salt, and the base that is fed per unit time during the continual feed period is controlled and/or acid is added to the reaction solution in the reaction tank so that a pH of the reaction solution within the reaction tank during the continual feed period falls within a range relative to a pH, a pH of the prereaction solution, ofpH&#x2212;2&#x2266;pH&#x2266;pH+2.

Magnetic powder for magnetic recording, magnetic recording medium, and method of manufacturing magnetic powder for magnetic recording

An acidic gas separation module including: a perforated hollow central tube; and a layered body that is wound on the perforated hollow central tube and has, in the following order on a porous support: an acidic gas separation layer containing a water-absorbing polymer, a carrier, and water; and a flow channel material with a network structure having a thread intersection portion and an arithmetical surface roughness for a surface contacting the acidic gas separation layer in the thread intersection portion of 35 &#x3bc;m or less. The acidic gas separation module suppresses generation of flocculated water by maintaining the generation of turbulent flow in the flow channel material, effectively suppresses damage to the surface of the acidic gas separation layer by the flow channel material in the winding-on process during manufacture, and exhibits excellent acidic gas separation efficiency.

Acidic gas separation module, and method for manufacturing acidic gas separation module

The present invention provides a metal nanowire-containing composition containing at a least metal nanowire and a heterocyclic compound having an interaction potential of less than &#x2212;1 mV.

Metal nanowire-containing composition, and transparent conductor

A positive-type photosensitive composition including an alkali-soluble polymer formed through copolymerization of monomer (A) represented by the following General Formula (I) and other radical polymerizable monomer (B), a 1,2-quinonediazide compound, and a nanowire structure: 

Positive-type photosensitive composition, transparent conductive film, display element and integrated solar battery

Disclosed is a silver halide photographic photosensitive material which includes a support and at least one silver halide photosensitive layer on the support, wherein the average equivalent sphere diameter of the silver halide of the silver halide photosensitive layer is 0.30 &#x3bc;m or less, the silver halide photosensitive layer includes four or more kinds of silver halide grains having mutually different average equivalent sphere diameters, and the thickness between a surface of the support at a side at which the silver halide photosensitive layer is provided and a surface of the silver halide photosensitive layer at a side opposite to the support is 10 &#x3bc;m or less.

Silver halide photosensitive material and process of producing black and white image using the same

A silver halide photographic material, includes transparent support having provided thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein the average equivalent-sphere diameter of the silver halide grains contained in each layers is 0.35 &#x3bc;m or less, and an upper layer of the green-sensitive emulsion layer contains a fixed magenta dye, an upper layer or the red-sensitive emulsion layer contains a fixed cyan dye, and the green-sensitive layer contains a pyrazolotriazole, pyrazolopyrrole or 4-thio-pyrazolo-5-one coupler having a specific structure, and an image-recording method uses the photographic material.

Growing community of inventors

Minami-ashigara, Japan

Yoichi Hosoya