Fujifilm Corporation

Masahiro Hatta

Hiroshi Kawakami

Hiroki Sasaki

Tetsuro Mitsui

Kimi Ikeda

Naotoshi Sato

Takuto Matsushita

Aya Nakayama

Takayuki Matsumoto

A first object of the present invention is to provide an ultraviolet-sensing member having excellent storage stability and image stability. In addition, a second object of the present invention is to provide a microcapsule, a production method of a microcapsule, a dispersion liquid for forming an ultraviolet-sensing layer, and an ultraviolet-sensing kit. The ultraviolet-sensing member of the present invention is an ultraviolet-sensing member including an ultraviolet-sensing layer containing a microcapsule which contains a photoactivator, a color-forming agent, and an aromatic solvent, in which the aromatic solvent includes an aromatic solvent including a heteroatom and an aromatic solvent including no heteroatom.

Ultraviolet-sensing member, microcapsule, production method of microcapsule, dispersion liquid for forming ultraviolet-sensing layer, and ultraviolet-sensing kit

Provided is a pressure measuring material having a substrate and a pressure-sensitive layer, wherein the pressure-sensitive layer contains a polymer matrix containing a polymer compound having a molecular weight of 1,000 or more, and microcapsules encapsulating an electron-donating dye precursor and a solvent, and an electron-accepting compound. The pressure-sensitive layer has a color development-inducing layer having the electron-accepting compound and the polymer matrix and a color-developing layer having the microcapsules. A thickness of the color-developing layer is equal to or less than ½ of a thickness of the color development-inducing layer.

Pressure measuring material

An object of the present invention is to provide a heat storage composition excellent in slow flame retardance and a heat storage member excellent in the slow flame retardance. Another object of the present invention is to provide an electronic device including a heat storage member, and a manufacturing method of a heat storage member. The heat storage composition according to an embodiment of the present invention contains a heat storage material and a flame retardant, in which a specific condition A is satisfied. The heat storage member according to an embodiment of the present invention contains a heat storage material and a flame retardant, in which a specific condition C is satisfied.

Heat storage composition, heat storage member, electronic device, and manufacturing method of heat storage member

Provided is a pressure measuring material having a substrate and a pressure-sensitive layer, wherein the pressure-sensitive layer contains a polymer matrix containing a polymer compound having a molecular weight of 1,000 or more, and microcapsules encapsulating an electron-donating dye precursor and a solvent, and an electron-accepting compound. Also provided is a method for manufacturing the pressure measuring material.

Pressure measuring material and method for manufacturing pressure measuring material

According to an embodiment of the present invention, provided are hollow particles which have a wall portion containing polyurethane or polyurea, have an internal porous structure, and have a plurality of opening spaces blocked by the wall portion in an outermost portion of the porous structure, and a manufacturing method thereof, and a pore forming material, particles for cosmetics, and a weight reducing material.

Hollow particles and manufacturing method thereof, pore forming material, particles for cosmetics, and weight reducing material

Provided an ultraviolet-sensing sheet that facilitates measurement of ultraviolet irradiance over a wide area, that is suitable in ultraviolet irradiance in a range from 1 to 1,000 mJ/cm, and that is easier to visually assess for coloring on the cumulative illuminance of ultraviolet, an ultraviolet-sensing kit, and a method for sensing ultraviolet. The ultraviolet-sensing kit comprises a sheet containing an ultraviolet-sensing layer and a film for adjusting ultraviolet-sensitivity, wherein the sheet containing an ultraviolet-sensing layer comprising, a support and an ultraviolet-sensing layer in this order, the ultraviolet-sensing layer comprising a capsule containing a photo-oxidant and a capable of developing color by the photo-oxidant, a mass ratio of the photo-oxidant and the leuco dye is 0.2 to 1.0:1, and the leuco dye being present in an amount of 0.1 to 1.0 g per 1 mof a surface area of the ultraviolet-sensing layer.

Ultraviolet-sensitive sheet, ultraviolet-sensing kit, and method for sensing ultraviolet

Provided an ultraviolet-sensing sheet that facilitates measurement of ultraviolet irradiance over a wide area, that is suitable in ultraviolet irradiance in a range from 1 to 1,000 mJ/cm, a method for manufacturing such an ultraviolet-sensing sheet, and a method for sensing ultraviolet. The ultraviolet-sensing sheet has a change in reflection density &#x394;D1 of 0.2 or more over a range of cumulative illuminance 1 mJ/cmor more and less than 10 mJ/cm,

Ultraviolet-sensitive sheet, method for manufacturing ultraviolet-sensing sheet, and method for sensing ultraviolet

Provided are an ultraviolet-sensing sheet, an ultraviolet-sensing set, and an ultraviolet-sensing method, in which color gradation properties which are suitable for detecting an ultraviolet dose are obtained and in which the coloring of an ultraviolet-sensing layer caused by the effect of light other than ultraviolet light is prevented. An ultraviolet-sensing sheetincludes: a filter layerthat selectively allows transmission of light having a specific wavelength; and an ultraviolet-sensing layerthat includes a capsule including a color-forming dye and a photooxidant. It is preferable that the filter layerhas a maximum value of the transmittance in a wavelength range of 300 nm or longer and shorter than 380 nm.

Ultraviolet-sensing sheet, ultraviolet-sensing set, and ultraviolet-sensing method

Provided an ultraviolet-sensing sheet that facilitates measurement of ultraviolet irradiance over a wide area, that is suitable in ultraviolet irradiance in a range from 1 to 1,000 mJ/cm, a method for manufacturing such an ultraviolet-sensing sheet, and a method for sensing ultraviolet. The ultraviolet-sensing sheet has a change in reflection density &#x394;D1 of 0.2 or more over a range of cumulative illuminance 1 mJ/cmor more and less than 10 mJ/cm, a change in reflection density &#x394;D2 of 0.2 or more over a range of cumulative illuminance 10 mJ/cmor more and less than 100 mJ/cm, and a change in reflection density &#x394;D3 of 0.2 or more over a range of cumulative illuminance 100 mJ/cmor more and 1,000 mJ/cmor less, as measured at a wavelength of 365 nm when the ultraviolet-sensing sheet is irradiated with a high-pressure mercury lamp.

Growing community of inventors

Fujinomiya, Japan

Masahiro Hatta