Patents Assigned to Kimoto Co., Ltd.
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Publication number: 20070182882Abstract: A light control film enabling improvement in front luminance, having appropriate light diffusing property and free from problems of interference pattern, glare etc. is provided. A light control film 10 having a rough surface is constituted so that, for a curved surface of the rough surface approximated in an approximately square region having an area of 1 mm2 or larger defined at an arbitrary position on the rough surface by using height data of the rough surface measured with predetermined intervals for the longitudinal and transverse directions in the approximately square region, an average of slopes of the curved surface (?nv (degree)) of the rough surface with respect to a base plane of the film should be not less than 27 degrees and not more than 70 degrees at substantially any position on the light control film.Type: ApplicationFiled: March 2, 2005Publication date: August 9, 2007Applicant: KIMOTO CO., LTD.Inventor: Hideki Etori
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Publication number: 20070184260Abstract: There is provided an anti-Newton ring sheet having an excellent anti-sparkle property, which can prevent the generation of sparkles when it is used in a touch panel using a high-definition color display, and a touch panel using this anti-Newton ring sheet. The anti-Newton ring sheet 1 of the present-invention has an anti-Newton ring layer 3 comprising ionizing radiation curable organic-inorganic hybrid resin (binder component 32) and fine particles 31 on one surface of a transparent substrate 2, and preferably the mean diameter and the coefficient of variation of the diameter of the particle 31 is not less than 0.5 ?m and not more than 3.0 ?m and not less than 20% and not more than 80%, respectively, and the thickness of the anti-Newton ring layer 3 is preferably not less than 0.2 ?m and not more than 3.5 ?m.Type: ApplicationFiled: February 10, 2005Publication date: August 9, 2007Applicant: KIMOTO CO., LTDInventors: Masato Saito, Keiichi Kitahara, Masuo Koyama, Yoshihisa Kimura
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Publication number: 20070171654Abstract: A light control film enabling improvement in front luminance, having appropriate light diffusing property and free from problems of interference pattern, glare etc. is provided. A light control film 10 having a rough surface is constituted so that, for an arbitrary cross section perpendicular to a base plane of the film, a condition that average (?ave, degree) of absolute values of slope with respect to the base plane of a curve along the edge of the cross section is not less than 20 degrees and not more than 75 degrees, and absolute value of skewness (JIS B0601:2001) of the profile curve is not more than 1.2 should be satisfied for substantially any profile curve.Type: ApplicationFiled: March 2, 2005Publication date: July 26, 2007Applicant: KIMOTO CO., LTD.Inventor: Hideki Etori
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Patent number: 7244490Abstract: An anti-Newton ring sheet includes an anti-Newton ring layer containing binder resin and particles, and formed on at least one surface of a transparent polymer film, wherein the particles are monodisperse spherical particles having a mean particle diameter of not less than 0.4 ?m and not more than 2.0 ?m and are contained in an amount of not less than 0.5 parts by weight and not more than 3 parts by weight based on 100 parts by weight of the binder resin. The anti-Newton ring sheet can prevent scratching of a contact surface even if it is brought into contact with a light guide plate or the like made of a softer material, without loss of the anti-Newton ring effect. The anti-Newton ring sheet can be utilized for an optical film having an anti-Newton ring effect by providing an optical function layer such as a light diffusing layer on the surface opposite the anti-Newton ring layer.Type: GrantFiled: March 21, 2003Date of Patent: July 17, 2007Assignee: Kimoto Co., Ltd.Inventor: Hideharu Nagami
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Publication number: 20070091073Abstract: A transmission screen having a writable and erasable surface for one side is provided. This transmission screen is constructed so that the writable and erasable surface should have a specular gloss (JIS K5600-4-7:1999) of 70 to 135%, the transmission screen as a whole should have a haze (JIS K7136:2000) of 80% or more, and the surface opposite to the writable and erasable surface should have a specular gloss (JIS K5600-4-7:1999) of 10% or less. With this transmission screen, writing with a marker for white boards and erasing can be easily done while seeing images projected on the transmission screen, and the images from a projector do not become hard to see due to projection of the images on the body of a writer.Type: ApplicationFiled: July 5, 2004Publication date: April 26, 2007Applicant: KIMOTO CO., LTD.Inventors: Hirohide Nakata, Ryoko Yanagisawa, Masahiro Harada, Takeshi Matsushita, Makoto Sugiyama
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Patent number: 7171902Abstract: There is disclosed a direct drawing type lithographic printing plate material comprising a support and an image-forming layer formed on the support, wherein the image-forming layer is formed on a roughened surface of the support and contains a binder and a pigment having a relatively small particle size. The direct drawing type lithographic printing plate material of the present invention has extremely excellent water retention property and is capable of suppressing scumming upon printing, degradation of printing density and image blur even when the amount of a humidifying solution to be supplied is increased upon printing, and minimizes printing defects which otherwise occurs when a printing operation once stopped is resumed or the like.Type: GrantFiled: December 21, 2000Date of Patent: February 6, 2007Assignee: Kimoto Co., Ltd.Inventor: Junichi Nouda
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Patent number: 7156547Abstract: A light diffusive sheet of the present invention comprises a transparent polymer sheet provided with a light diffusion layer 3 on one side and an uneven surface 4a having arithmetical mean deviation of 0.5 ?m or less and mean spacing of 80 ?m or narrower on the opposite side. Such an uneven surface can be made by forming a backcoat layer 4 including a mixture of particles having particular mean diameters in a particular proportion to a binder resin on the transparent polymer sheet. An area light source element 7 of the present invention is produced by laminating a prism sheet 6 on a light guide plate 5 so that the prism surface 61 of the prism sheet 6 is opposed to the light-emitting surface 51 of the light guide plate 5 and laminating the light diffusive sheet on the prism sheet 6 so that the uneven surface (backcoat layer) of the light diffusive sheet is opposed to the surface opposite of the prism surface.Type: GrantFiled: March 3, 2003Date of Patent: January 2, 2007Assignee: Kimoto Co., Ltd.Inventors: Yasumaro Toshima, Masashi Takai, Hideharu Nagami
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Publication number: 20060221313Abstract: An image display apparatus that can display three-dimensional-like images having a superior visual effect in a simple manner is provided. This image display apparatus is constituted by a projector 20 and a decorative display unit 10 comprising a light transmitting substrate having multiple colored dots arranged on one surface of the substrate and multiple light transmitting light converging elements arranged on the other surface of the substrate, at least a part of which is provided with an image formation means for forming an image from light projected from the projector 20. With this image display apparatus, a virtual image of the dots is formed on a plane different from the plane of the image projected on the image formation means to provide a three-dimensional-like visual effect. It is preferred that directivities of the arrangements of the dots and light converging elements of the decorative display unit 10 are identical to each other, and pitches thereof are different from each other.Type: ApplicationFiled: May 13, 2004Publication date: October 5, 2006Applicant: Kimoto Co., LTDInventor: Masaaki Kitaguchi
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Patent number: 7087297Abstract: A protective film transfer sheet comprises a peelable support and a protective film formed on the support, wherein the protective film comprises a protective layer and an adhesive layer formed on the support in this order and the adhesive layer has pressure-sensitive adhesiveness, the adhesiveness of the adhesive layer being increased upon heating after transferred on the image surface of photo masks, and is curable by exposure to ionizing radiation. The protective film formed by the protective film transfer sheet is excellent in adhesiveness to the image surface of photo masks, mar resistance and resistance to solvents.Type: GrantFiled: May 24, 2001Date of Patent: August 8, 2006Assignee: Kimoto Co., Ltd.Inventors: Mitsunori Maruyama, Susumu Kurishima
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Patent number: 6929377Abstract: There is provided a light-reflective material with which light reflectance can be efficiently increased and brightness of a flat light source can be improved without increasing the number of components. This light-reflective material comprises a laminate formed by partially bonding at least two white plastic films while holding a space therebetween. Preferably, the white plastic films are partially bonded as a laminate while holding a space therebetween by an adhesion layer formed on portions of the white plastic film surface or an adhesion layer that has projections and is formed on the white plastic film surface.Type: GrantFiled: November 12, 2002Date of Patent: August 16, 2005Assignee: Kimoto Co., Ltd.Inventor: Yukio Hirose
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Patent number: 6869673Abstract: In a transparent hard coat film, in which a transparent hard coat layer is formed on at least one surface of a transparent polymer film, the transparent hard coat layer is composed of at least an ionizing radiation curable organic-inorganic hybrid hard-coat agent and inorganic particles having a mean particle diameter of 1-10 ?m. The organic-inorganic hybrid hard-coat agent preferably contains reactive silica. Such a transparent hard coat film of the present invention has well-balanced anti-glare effect and resolution and yet has hardness that is typically expressed as surface hardness.Type: GrantFiled: March 12, 2003Date of Patent: March 22, 2005Assignee: Kimoto Co., Ltd.Inventors: Masato Saitou, Masahiro Harada, Masuo Koyama, Yoshihisa Kimura
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Patent number: 6856478Abstract: An indicator panel for a vehicle instrument panel is provided with a base substrate having transparency, an ink-acceptance layer coated on at least one surface of the base substrate and a shading layer coated further on the ink-acceptance layer. Hazes of the base substrate and the ink-acceptance layer are more than 92.8% and less than 93.5%.Type: GrantFiled: March 19, 2004Date of Patent: February 15, 2005Assignees: Calsonic Kansei Corporation, Kimoto Co., Ltd.Inventors: Tetsuto Miyanishi, Tetsuji Ohta
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Patent number: 6804053Abstract: A light transmitting type screen that enables the viewer to see through to its back side, when the screen is stuck on transparent object such as a show window or a transparent window glass or when it is used as a transparent object, and that is capable of forming clear images projected from a projected thereon is provided. The screen includes a light scattering layer having a front-scattering property, which is composed of spherical microparticles having a mean particle diameter in a certain range dispersed in a binder having a refraction index in a certain range. The light scattering layer is sandwiched between transparent objects such as high-molecular weight resin sheets or show window glass via an adhesive layer or the like.Type: GrantFiled: December 21, 2000Date of Patent: October 12, 2004Assignee: Kimoto Co., Ltd.Inventors: Hideki Etori, Yasunori Sugiyama
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Patent number: 6780479Abstract: There is provided a hot-melt transfer ink image-receiving sheet which is excellent in abrasion resistance as well as image density and halftone dot reproducibility of a recorded image and useful as a contact printing film in the photomechanical process. In this hot-melt transfer ink image-receiving sheet 4 having an image-receiving surface 3 on a support 1, the image-receiving surface 3 has surface roughness (JIS-B0601) of 0.15-0.60 &mgr;m in terms of arithmetic mean deviation Ra and 1.0-3.0 &mgr;m in terms of 10-point height of irregularities Rz.Type: GrantFiled: February 22, 2002Date of Patent: August 24, 2004Assignee: Kimoto Co., Ltd.Inventors: Toshimichi Katsuoka, Hironori Sato, Junichi Nouda
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Patent number: 6771335Abstract: There is provided a light diffusion sheet comprising a light diffusion layer formed on a transparent substrate and containing a binder resin and resin particles that impart an uneven surface, wherein the light diffusion sheet has a total light transmission of 70.0% or more, haze of 80.0% or more, and a distinctness of transmission image of 25.0% or more. This light diffusion sheet is high luminance in the front direction, is excellent in light-diffusing property, does not require use of an expensive prism sheet which is readily susceptible to surface damage, and does not require careful handling.Type: GrantFiled: May 15, 2001Date of Patent: August 3, 2004Assignee: Kimoto Co., Ltd.Inventors: Yoshihisa Kimura, Teruo Ohnuma
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Patent number: 6654085Abstract: A front scattering film capable of reducing backward scattering and providing a clear display is provided. The front scattering film comprises a light scattering layer composed of a transparent polymer binder and spherical microparticles dispersed in the binder and having a refractive index different from that of the binder, and substrates provided on the both sides of the light scattering layer, wherein at least one of the substrates is peelable from the light scattering layer. This front scattering film does not impair the function of the liquid crystal display unit by, for instance, affecting polarization, even it is used in a liquid crystal display unit in which a light scattering layer provided by the front scattering film is arranged between a retardation film or polarizer film and a liquid crystal layer.Type: GrantFiled: February 8, 2000Date of Patent: November 25, 2003Assignee: Kimoto Co., Ltd.Inventors: Toshihiro Koike, Hideki Etori, Yasunori Sugiyama
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Publication number: 20030180520Abstract: In a transparent hard coat film, in which a transparent hard coat layer is formed on at least one surface of a transparent polymer film, the transparent hard coat layer is composed of at least ionizing radiation curable organic-inorganic hybrid hard-coat agent and inorganic particles having a mean particle diameter of 1-10 &mgr;m. The organic-inorganic hybrid hard-coat agent preferably contains reactive silica. Such a transparent hard coat film of the present invention has well-balanced anti-glare property and resolution and yet has hard coat property that is typically expressed by surface hardness.Type: ApplicationFiled: March 12, 2003Publication date: September 25, 2003Applicant: KIMOTO CO., LTD.Inventors: Masato Saitou, Masahiro Harada, Masuo Koyama, Yoshihisa Kimura
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Publication number: 20030180529Abstract: There is provided an anti-Newton ring sheet comprising an anti-Newton ring layer containing binder resin and particles, and formed on at least one surface of a transparent polymer film, wherein the particles are monodisperse spherical particles having a mean particle diameter of not less than 0.4 &mgr;m and not more than 2.0 &mgr;m and are contained in an amount of not less than 0.5 parts by weight and not more than 3 parts by weight based on 100 parts by weight of the binder resin. The anti-Newton ring sheet can prevent generation of scratches on a contact surface even if it is brought into contact with a light guide plate or the like made of a softer material, without degrading the anti-Newton ring property. The anti-Newton ring sheet can be utilized for an optical film having an anti-Newton ring property by providing an optical function layer such as a light diffusing layer on the surface opposite to the anti-Newton ring layer.Type: ApplicationFiled: March 21, 2003Publication date: September 25, 2003Applicant: KIMOTO CO., LTD.Inventor: Hideharu Nagami
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Publication number: 20030174257Abstract: A transparent hard coat film having an excellent hard coat property and transmitted resolution, in which an interference fringe attributable to ununiform thickness of the transparent hard coat layer is not noticeable, is provided. The transparent hard coat film of the invention has a transparent hard coat layer formed at least on one surface of a transparent polymer film, wherein the transparent hard coat film has a b* value in L*a*b* color space system of 0.5 or less. As a result of the diligent study conducted by the inventors, it was found that the interference fringe attributable to ununiform thickness of the transparent hard coat layer could be made unnoticeable by making the b* value of the film in L*a*b* color space system small.Type: ApplicationFiled: March 12, 2003Publication date: September 18, 2003Applicant: KIMOTO CO., LTD.Inventors: Masahiro Harada, Masato Saitou, Masuo Koyama, Yoshihisa Kimura
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Patent number: 6602596Abstract: There is provided a light diffusion sheet comprising a light diffusion layer formed on a transparent substrate and containing a binder resin and resin particles that impart an uneven surface, wherein the uneven surface of the light diffusion layer exhibits an arithmetical mean deviation of 2.0 &mgr;m or more in three-dimensional surface roughness measurement and/or ten point height of irregularities of 10.0 &mgr;m or more in three-dimensional surface roughness measurement. This light diffusion sheet is high luminance in the front direction, is excellent in light-diffusing property, and is resistant to damage.Type: GrantFiled: May 15, 2001Date of Patent: August 5, 2003Assignee: Kimoto Co., Ltd.Inventors: Yoshihisa Kimura, Kenji Fukui, Junji Ichinokawa, Teruo Ohnuma