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Ifuku, JP
Shinsuke Ifuku, Kyoto JP
| Patent application number | Description | Published |
|---|---|---|
| 20090054552 | FIBER-REINFORCED COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME - Disclosed is a highly transparent fiber-reinforced composite material including an assembly of cellulose fibers of 4 to 200 nm average fiber diameter impregnated with a matrix material so as to not only remedy the moisture absorbency attributed to cellulose fibers but also further improve transparency. There is provided a fiber-reinforced composite material including an assembly of cellulose fibers impregnated with a matrix material. In the fiber-reinforced composite material, hydroxyl groups of cellulose fibers are chemically modified through a reaction with one or more chemical modifiers selected from the group consisting of an acid, an alcohol, a halogenating reagent, an acid anhydride, and an isocyanate so that the ratio of a functional group introduced by the chemical modification is 5 to 40 percent by mole based on the hydroxyl groups of cellulose fibers before the chemical modification. The chemical modification of hydroxyl groups of cellulose fibers can reduce the hydrophilicity of cellulose fibers to thereby reduce the moisture absorbency of fiber-reinforced composite material. Further, the affinity between cellulose fibers and matrix material can be enhanced to thereby further improve transparency. | 02-26-2009 |
| 20090264036 | NANOFIBER SHEET, PROCESS FOR PRODUCING THE SAME, AND FIBER-REINFORCED COMPOSITE MATERIAL - Provided is a nanofiber sheet that sufficiently refined by fibrillation and has high crystallinity of cellulose fiber and can realize a fiber-reinforced composite material exhibiting high transparency, a high elastic modulus, a low coefficient of linear thermal expansion, and high heat resistance and being high in flatness and smoothness. This nanofiber sheet includes crystalline cellulose as the main component and a lignin in an amount of from 10 ppm to 10 wt %. When a fiber/resin composite material obtained by impregnating the nanofiber sheet with tricyclodecane dimethacrylate, subjecting the impregnated product to UV-curing at 20 J/cm | 10-22-2009 |
| 20090298976 | Fiber-Reinforced Composition Resin Composition, Adhesive and Sealant - An object of the present invention is to provide a fiber-reinforced composite resin composition for use as a sealant, adhesive, or filler, having a high transparency, and enabled to adequately meet recently required levels of low thermal expansion property, high strength, light weight, high thermal conductivity, and especially high, isotropic thermal conductivity. With the fiber-reinforced composite resin composition, the fibers have an average fiber diameter of 4 to 200 nm, a total light transmittance at wavelengths of 400 to 700 nm as measured with a 50 μm-thickness cured product, resulting from curing the composition to a plate-like form, is no less than 70%, both a thermal conductivity coefficient in a thickness direction and a thermal conductivity coefficient in a plate surface direction of the cured product are no less than 0.4 W/m·K, and the fibers are oriented randomly in the composition. | 12-03-2009 |
| 20100143681 | FLEXIBLE SUBSTRATE - A flexible substrate | 06-10-2010 |
Shinsuke Ifuku, Tottori-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110319528 | METHOD FOR PRODUCING CHITIN NANOFIBERS, COMPOSITE MATERIAL AND COATING COMPOSITION EACH CONTAINING CHITIN NANOFIBERS, AND METHOD FOR PRODUCING CHITOSAN NANOFIBERS, COMPOSITE MATERIAL AND COATING COMPOSITION EACH CONTAINING CHITOSAN NANOFIBERS - The present invention provides a method for producing chitin nanofibers, which includes the steps of deproteinizing a material derived from a chitin-containing organism by an alkali treatment, deashing a deproteinized integument by an acid treatment, optionally treating the deashed integument under acidic conditions, and then subjecting to a fiber-loosening treatment. The present invention also provides chitin nanofibers obtained by the method, and a composite material and a coating composition each containing the same. The present invention provides a method for producing chitosan nanofibers, which includes, in addition to the above steps, a deacetylation step and chitosan nanofibers obtained by the method, and a composite material and a coating composition each containing the same. | 12-29-2011 |
Shinsuko Ifuku, Kyoto JP
| Patent application number | Description | Published |
|---|---|---|
| 20090305033 | FIBER COMPOSITE MATERIAL AND METHOD FOR MANUFACTURING THE SAME - A highly transparent fiber composite material is provided that can be manufactured through a simplified process using reduced amounts of raw materials and that has high flexibility and low thermal expansivity and retains good functionality of the fiber material. The fiber composite material includes: a fiber assembly having an average fiber diameter of 4 to 200 nm and a 50 μm-thick visible light transmittance of 3% or more; and a coating layer that coats and smoothes the surface of the fiber assembly, wherein the fiber composite material has a 50 μm-thick visible light transmittance of 60% or more. With this fiber assembly, the scattering of light caused by the irregularities on the surface can be suppressed by coating the surface with the coating layer to smooth the surface, whereby a highly transparent fiber composite material can be obtained. | 12-10-2009 |
Toshihiro Ifuku, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20090153626 | DIELECTRIC FILM STRUCTURE, PIEZOELECTRIC ACTUATOR USING DIELECTRIC ELEMENT FILM STRUCTURE AND INK JET HEAD - The present invention provides a dielectric film structure having a substrate and a dielectric film provided on the substrate and in which the dielectric film has (001) face orientation with respect to the substrate, and in which a value u in the following equation (1) regarding the dielectric film is a real number greater than 2: | 06-18-2009 |
Yasuo Ifuku, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20110014633 | ELECTRIC ANALYSIS METHOD - Disclosed is an analysis method comprising the steps of: | 01-20-2011 |
Yasuo Ifuku, Anjo-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110308219 | PUSH MOWER - A push mower having a height adjustment lever, which can be manipulated easily, is provided. The provided push mower includes: a main body configured to move along a ground; a blade attached to the main body; a height adjustment lever attached to the main body; and a height adjustment mechanism configured to change a height of the blade from the ground based on a position of the height adjustment lever. The height adjustment lever includes: a pillar protruding from the main body; a grip fixed to the pillar; and a lock member attached to the grip and configured to move with respect to the grip between a lock position and an unlock position. A movement of the height adjustment lever is inhibited when the lock member is at the lock position, and the movement of the height adjustment lever is allowed when the lock member is at the unlock position. | 12-22-2011 |
Yoshihiro Ifuku, Kumamoto-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20100198255 | SPRAY HEAD, AND APPARATUS AND METHOD FOR APPLYING BIOLOGICAL TISSUE ADHESIVE - A spray head ( | 08-05-2010 |