Kamijou
Takashi Kamijou, Ibaraki-Shi JP
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20090040443 | METHOD OF PRODUCING A LIQUID CRYSTAL PANEL, LIQUID CRYSTAL PANEL, AND IMAGE DISPLAY APPARATUS - To provide a method of producing a liquid crystal panel capable of easily realizing stable high contrast of the liquid crystal panel to be obtained at low cost, a liquid crystal panel, and an image display apparatus. There is provided a method of producing a liquid crystal panel including a first optical compensation layer having refractive index profile of nx>ny=nz and a polarizer on each side of a liquid crystal cell in the order given, in which an angle formed between an absorption axis of the polarizer (A) and a slow axis of the first optical compensation layer (B) on one side of the liquid crystal cell is +α°, an angle formed between an absorption axis of the polarizer (A′) and a slow axis of the first compensation layer (B′) on another side of the liquid crystal cell is −α°, and 0<α<90, the method comprises a step of subjecting substrate formed of single original sheet to alignment treatment at +α° and alignment treatment at −α° with respect to a longitudinal direction of the substrate; and a step of forming the first optical compensation layer (B) on the surface subjected to the +α° alignment treatment and forming the first optical compensation layer (B′) on the surface subjected to the −α° alignment treatment. | 02-12-2009 |
20100225854 | LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY APPARATUS USING THE PANEL - Provided are a liquid crystal panel which contributes to reduction in thickness and is excellent in optical properties and a liquid crystal display apparatus. The liquid crystal panel of the present invention includes a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on another side of the liquid crystal cell, a first optical compensation layer and a first negative C plate disposed between the first polarizer and the liquid crystal cell, and a second negative C plate and a second optical compensation layer disposed between the liquid crystal cell and the second polarizer, in which the first optical compensation layer is disposed between the first polarizer and the first negative C plate, the second optical compensation layer is disposed between the second negative C plate and the second polarizer, the first and second optical compensation layers each include a coating layer functioning as a λ/4 plate, and each have a thickness of 0.3 to 3 μm, and the first and second negative C plates each include a coating layer, and each have a thickness of 0.5 to 10 μm. | 09-09-2010 |
Takashi Kamijou, Osaka JP
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20090017203 | METHOD FOR PRODUCING OPTICAL FILM - This invention provides a method for producing an optical film, the method comprising a rubbing treatment step of rubbing the surface of a lengthy plastic film F with a rubbing roll | 01-15-2009 |
20090040434 | Method of producing elliptically polarizing plate and image display apparatus using the elliptically polarizing plate - To provide a method of producing a broadband and wide viewing angle elliptically polarizing plate having excellent properties in an oblique direction, the elliptically polarizing plate, and an image display apparatus. | 02-12-2009 |
20100134737 | LIQUID CRYSTAL PANEL, LIQUID CRYSTAL DISPLAY APPARATUS USING THE PANEL, AND METHOD OF PRODUCING A LIQUID CRYSTAL PANEL - Provided are a liquid crystal panel and a liquid crystal display apparatus each of which: contributes to a reduction in thickness; and is excellent in optical characteristics, and a method of producing the liquid crystal panel with extremely high production efficiency. A liquid crystal panel of the present invention has a first polarizer, a first protective layer, a first optical compensation layer, a first negative C plate, a liquid crystal cell, a second negative C plate, a second optical compensation layer, a second protective layer, and a second polarizer in the stated order. The first optical compensation layer is arranged between the first protective layer and the first negative C plate to be in close contact with the first protective layer without using any adhesive. The second optical compensation layer is arranged between the second negative C plate and the second protective layer to be in close contact with the second protective layer without using any adhesive. The first and second optical compensation layers are each a coating layer functioning as a λ/4 plate, and each have a thickness of 0.3 to 3 μm. The first and second negative C plates are each a coating layer, and each have a thickness of 0.5 to 10 μm. | 06-03-2010 |
Yuuichi Kamijou, Tokyo JP
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20140205532 | METHOD FOR PRODUCING ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES - A method for producing a graphie material for an electrode material for lithium ion batteries, including a step for exothermically graphitizing a carbon material by directly passing an electric current therethrough. The carbon material has an compact powder resistivity of 0.4 Ω·cm or less when compressed to a density of 1.4 g/cm | 07-24-2014 |
20140255292 | METHOD FOR PRODUCING ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES - A method for producing a graphite material for lithium ion batteries, including a step for exothermically graphitizing a carbon material by directly applying an electric current therethrough. The carbon material is obtained by heating at a temperature in the range of 800° C.-1500° C. inclusive and subsequently pulverizing an organic carbon starting material, has a compact powder resistivity of 0.3 Ωcm or less when compressed to a density of 1.4 g/cm | 09-11-2014 |
20140335428 | GRAPHITE MATERIAL, CARBON MATERIAL FOR BATTERY ELECTRODE, AND BATTERY - A graphite material having pores which, when 200 rectangular regions of 6 μm×8 μm are randomly selected in a surface image of the graphite material observed by a scanning electron microscope, in the surface of the graphite material appearing in the regions, a pore appearing on the surface and having an aperture in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5 is visible in two regions or more. Also disclosed is a carbon material for battery electrodes, a paste for electrodes, an electrode and a lithium ion secondary battery including the graphite material. | 11-13-2014 |
Yuuichi Kamijou, Minato-Ku JP
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20140231707 | GRAPHITE MATERIAL, METHOD FOR PRODUCING SAME, CARBON MATERIAL FOR BATTERY ELECTRODES, AND BATTERY - A graphite material suitable as an electrode material for non-aqueous electrolytic secondary batteries; a method for producing the same and a carbon material for battery electrodes; and a secondary battery. The graphite material includes crystallite graphite particles wherein an oxygen amount (a) (mass %) in a region from a particle surface of the graphite material to a depth of 40 nm is within a range of 0.010≦(a)≦0.04 as determined by a peak intensity of O | 08-21-2014 |