Takao Miyamoto
Takao Miyamoto, Yamaguchi JP
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20100266829 | AROMATIC POLYIMIDE FILM AND METHOD FOR PRODUCING THE SAME - An aromatic polyimide film having a thickness in the range of 5-250 μm and comprising biphenyltetracarboxylic acid units comprising 3,3′,4,4′-biphenyltetracarboxylic acid units and 2,3,3′,4′-biphenyltetracarboxylic acid units in a molar ratio of 75:25 to 97:3 and p-phenylenediamine units in a molar ratio of 100:102 to 100:98 has thermal resistance and physical characteristics equivalent to those of the known aromatic polyimide film comprising 3,3′,4,4′-biphenyltetracarboxylic acid units and p-phenylenediamine units and showing good thermal resistance and physical characteristics and is favorably produced in industry. | 10-21-2010 |
20120028061 | POLYIMIDE FILM FOR METALLIZING, METHOD FOR PRODUCING SAME, AND METAL-LAMINATED POLYIMIDE FILM - The present invention provides a polyimide film for metallizing, which has an anisotropic thermal expansion coefficient, and comprises a polyimide layer (b) and a polyimide layer (a) on one side or both sides of the polyimide layer (b); wherein | 02-02-2012 |
20120034455 | POLYIMIDE FILM, METHOD FOR PRODUCING THE SAME, AND METAL-LAMINATED POLYIMIDE FILM - The present invention provides a polyimide film having an anisotropic thermal expansion coefficient, and comprising a polyimide layer (b) and a polyimide layer (a) on one side or both sides of the polyimide layer (b), wherein | 02-09-2012 |
Takao Miyamoto, Ube JP
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20100062188 | POLYIMIDE FILM HAVING SMOOTHNESS ON ONE SURFACE - A polyimide film having one smooth surface favorably employable for a substrate of a display or an electronic paper is prepared by the steps of forming a laminated film by coating a polyimide precursor solution containing no filler, in which the polyimide is prepared from an acidic component comprising 3,3′,4,4′-biphenyltetracarboxylic dianhydride and a diamine component comprising p-phenylene diamine, on one surface of a self-supporting film of a polyimide precursor solution containing a filler, in which the polyimide is prepared from an acidic component comprising 3,3′,4,4′-biphenyltetracarboxylic dianhydride and a diamine component comprising p-phenylene diamine; and heating the laminated film to perform imidization. | 03-11-2010 |
Takao Miyamoto, Ube-Shi JP
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20120241005 | AROMATIC POLYIMIDE FILM, LAMINATE, AND SOLAR CELL - A CIS solar cell having flexibility and high conversion efficiency may be produced, using, as a substrate, a polyimide film which is prepared from an aromatic tetracarboxylic acid component comprising 3,3′,4,4′-biphenyltetracarboxylic dianhydride as the main component and an aromatic diamine component comprising p-phenylenediamine as the main component, and has a maximum dimensional change in the temperature-increasing step of from 25° C. to 500° C. within a range of from +0.6% to +0.9%, excluding +0.6%, based on the dimension at 25° C. before heat treatment. | 09-27-2012 |
20130011651 | POLYIMIDE FILM, AND PROCESS FOR PRODUCING POLYIMIDE FILM - The present invention relates to a polyimide film which is obtained by the reaction of a tetracarboxylic acid component and a diamine component and has an orientation anisotropy, in which the variations in the orientation angle in the width direction are within ±10°. | 01-10-2013 |
Takao Miyamoto, Nagoya-Shi JP
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20130216262 | ROTARY DAMPER AND IMAGE FORMING APPARATUS - A plurality of first viscoelastic bodies are disposed in insertion holes of a first rotary member. A plurality of second viscoelastic bodies are disposed in guide holes of a second rotary member. Each of the first and the second viscoelastic bodies has an elastic coefficient changing in accordance with aging due to use. A guide member moves a contact member along the insertion hole and the guide hole. The contact member applies a compressive load to the first viscoelastic body. The aging of the second viscoelastic body due to the compressive load applied thereto moves a position of the first viscoelastic body where the compressive load is received from the contact member toward a farther side from a rotational shaft side. | 08-22-2013 |
20130250279 | Gloss Measuring Device and Image Forming Device Including Same - A gloss measuring device that measures a gloss of an image formed on a sheet which is being transported, the gloss measuring device includes a light emission portion that emits light toward the sheet, a light reception portion that receives the light reflected specularly off the image formed on the sheet, and a position adjustment unit that performs adjustment such that the sheet being transported is in a measurement reference position. | 09-26-2013 |