Patents by Inventor Yoshio Tani
Yoshio Tani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240125986Abstract: A member for terahertz equipment includes: a substrate main body having a first principal surface and a second principal surface; and a reflection suppressing portion provided on at least one of the first principal surface or the second principal surface of the substrate main body. The reflection suppressing portion includes a plurality of protrusions which are arranged in a grating shape, and each have a tapered portion in a vertical cross section.Type: ApplicationFiled: December 12, 2023Publication date: April 18, 2024Inventors: Kentaro TANI, Jungo KONDO, Masahiko NAMERIKAWA, Yoshio KIKUCHI
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Patent number: 8288008Abstract: An image recording material which has a support and an image recording layer containing a crystalline polymer and an amorphous polymer on at least one surface of the support, wherein the image recording layer has a storage elastic modulus G? at 100° C. of 1×102 Pa to 1×105 Pa during a temperature increase at 5° C./min, a storage elastic modulus G? at 60° C. of 1×106 Pa or more during a temperature decrease at 5° C./min and a temperature difference of 18° C. or less between a temperature at which the storage elastic modulus G? during a temperature increase at 5° C./min reaches 1×105 Pa and a temperature at which the storage elastic modules G? during a temperature decrease at 5° C./min reaches 1×105 Pa, upon measurement of viscoelasticity by using a rheometer of plate-to-plate distance: 1.5 mm, diameter: 20 mm.Type: GrantFiled: September 19, 2007Date of Patent: October 16, 2012Assignee: FUJIFILM CorporationInventors: Yasutomo Goto, Ashita Murai, Shinji Fujimoto, Yoshio Tani
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Patent number: 7972760Abstract: The present invention provides an electrophotographic image receiving sheet including a support, and at least two toner image receiving layers formed over at least one surface of the support, wherein a mixture mass ratio M of a crystalline polymer and an amorphous polymer in each of the toner image receiving layers is defined as [A/(A+B)], where A represents a mass of the crystalline polymer (g), and B represents a mass of the amorphous polymer (g), and a mixture mass ratio M1 of the outermost toner image receiving layer which is located farthest from the support, and a mixture mass ratio M2 of the highest inner toner image receiving layer, which has the highest mixture mass ratio among the inner toner image receiving layers located under the outermost toner image receiving layer, satisfy the relation: M1<M2.Type: GrantFiled: April 8, 2008Date of Patent: July 5, 2011Assignee: Fujifilm CorporationInventors: Ashita Murai, Shinji Fujimoto, Yasutomo Goto, Yoshio Tani
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Patent number: 7972759Abstract: Provided are an electrophotographic image-receiving sheet that comprises a support, a toner image-receiving layer on at least one side of the support, wherein the toner image-receiving layer is formed from a coating liquid for the toner image-receiving layer and the coating liquid for the toner image-receiving layer comprises an aqueous dispersion that comprises a crystalline polymer, and an image forming method that employs the electrophotographic image-receiving sheet.Type: GrantFiled: July 17, 2007Date of Patent: July 5, 2011Assignee: FUJIFILM CorporationInventors: Shinji Fujimoto, Ashita Murai, Yasutomo Goto, Yoshio Tani, Masuo Murakami, Tetsuo Matsumoto
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Publication number: 20100129747Abstract: The present invention provides an electrophotographic image receiving sheet including a support, and at least two toner image receiving layers formed over at least one surface of the support, wherein a mixture mass ratio M of a crystalline polymer and an amorphous polymer in each of the toner image receiving layers is defined as [A/(A+B)], where A represents a mass of the crystalline polymer (g), and B represents a mass of the amorphous polymer (g), and a mixture mass ratio M1 of the outermost toner image receiving layer which is located farthest from the support, and a mixture mass ratio M2 of the highest inner toner image receiving layer, which has the highest mixture mass ratio among the inner toner image receiving layers located under the outermost toner image receiving layer, satisfy the relation: M1<M2.Type: ApplicationFiled: April 8, 2008Publication date: May 27, 2010Applicant: FUJIFILM CorporationInventors: Ashita Murai, Shinji Fujimoto, Yasutomo Goto, Yoshio Tani
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Patent number: 7579065Abstract: An electrophotographic image receiving sheet comprises a support and a toner image receiving layer that is formed on at least one surface of the support and contains a mixture of a linear amorphous polymer having a glass-transition temperature (Tg1) in a range of from 40° to 120° C. and a linear crystalline polymer having a melting temperature (Tm) in a range of from 100° to 200° C. These linear amorphous polymer and linear crystalline polymer satisfy 1.0×Tg1(K)?Tm(K)?1.5×Tg1(K).Type: GrantFiled: December 22, 2004Date of Patent: August 25, 2009Assignee: FUJIFILM CorporationInventor: Yoshio Tani
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Patent number: 7574166Abstract: An electrophotographic image-receiving sheet which includes a support, a toner-receiving layer which contains thermoplastic resin. The fixing belt electrophotographic sheet has an optimized separation force at a surface of the electrophotographic image-receiving sheet from the toner-receiving layer. Having a highly improved long-run properties, the fixing belt electrophotographic sheet realizes a stable paper feed without offset, and provides a good quality image with rich photographic features.Type: GrantFiled: February 6, 2006Date of Patent: August 11, 2009Assignee: FUJIFILM CorporationInventors: Masataka Murata, Yoshisada Nakamura, Yasutomo Goto, Yoshio Tani, Yutaka Nogami, Yoshio Kanesawa
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Patent number: 7489895Abstract: It is an object of the present invention to provide an image-recording process and an image-recording apparatus, even at high density image and high speed image output, capable of suppressing the occurrence of curl in the final image sheet, and controlling and giving the desired direction and size of the curl. For this purpose, an image-recording process includes recording an image on an image-recording material which includes a thermoplastic resin contained layer on a support, heating the image-recording material to a temperature higher than a glass transition temperature of thermoplastic resin in the thermoplastic resin contained layer, controlling the curl by contacting a curl controlling member with at least a part of the image-recording material, and cooling the image-recording material to a temperature below the glass transition temperature of the thermoplastic resin.Type: GrantFiled: August 17, 2005Date of Patent: February 10, 2009Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshio Tani
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Publication number: 20080113287Abstract: To provide an image-receiving sheet for electrophotography that suppresses blocking, allows toner images to fix satisfactorily, has excellent glossiness and reduced brittleness and can form high-quality images and to provide a process for image formation using the image-receiving sheet for electrophotography, an image-receiving sheet for electrophotography includes a substrate containing a base and a resin layer arranged on at least one side of the base; and at least one toner-image-receiving layer arranged on the resin layer of the substrate. The resin layer arranged between the toner-image-receiving layer and the base includes a polyethylene resin having a mass-average density of 0.935 g/cm3 or less and/or a melt flow rate MFR of 11 g/10 min. or less. In addition, an image-receiving sheet for electrophotography including a support and at least one toner-image-receiving layer over the support, the toner-image-receiving layer including a polyolefin resin.Type: ApplicationFiled: December 26, 2007Publication date: May 15, 2008Applicant: Fuji Photo Film Co., Ltd.Inventors: Yoshisada NAKAMURA, Yoshio Tani
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Publication number: 20080081274Abstract: An image recording material which has a support and an image recording layer containing a crystalline polymer and an amorphous polymer on at least one surface of the support, wherein the image recording layer has a storage elastic modulus G? at 100° C. of 1×102 Pa to 1×105 Pa during a temperature increase at 5° C./min, a storage elastic modulus G? at 60° C. of 1×106 Pa or more during a temperature decrease at 5° C./min and a temperature difference of 18° C. or less between a temperature at which the storage elastic modulus G? during a temperature increase at 5° C./min reaches 1×105 Pa and a temperature at which the storage elastic modules G? during a temperature decrease at 5° C./min reaches 1×105 Pa, upon measurement of viscoelasticity by using a rheometer of plate-to-plate distance: 1.5 mm, diameter: 20 mm.Type: ApplicationFiled: September 19, 2007Publication date: April 3, 2008Applicant: FUJIFILM CorporationInventors: Yasutomo GOTO, Ashita MURAI, Shinji FUJIMOTO, Yoshio TANI
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Publication number: 20080057419Abstract: Provided are an electrophotographic image-receiving sheet that comprises a support, a toner image-receiving layer on at least one side of the support, wherein the toner image-receiving layer is formed from a coating liquid for the toner image-receiving layer and the coating liquid for the toner image-receiving layer comprises an aqueous dispersion that comprises a crystalline polymer, and an image forming method that employs the electrophotographic image-receiving sheet.Type: ApplicationFiled: July 17, 2007Publication date: March 6, 2008Applicant: FUJIFILM CorporationInventors: Shinji Fujimoto, Ashita Murai, Yasutomo Goto, Yoshio Tani, Masuo Murakami, Tetsuo Matsumoto
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Patent number: 7312178Abstract: A base support for an image recording material strikes a balance between high flatness and superb stiffness and is favorably available for various image recording mediums capable of providing high quality. The base support comprising at least base paper satisfying a ratio of subsurface internal bond strength A relative central internal bond strength B that is represented preferably by A/B?0.7, and more preferably by 0.3?A/B?0.7. The subsurface internal bond strength is preferably from 90 to 150 mJ.Type: GrantFiled: October 29, 2004Date of Patent: December 25, 2007Assignee: Fujifilm CorporationInventors: Shigehisa Tamagawa, Fuyuhiko Mori, Yoshio Tani
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Publication number: 20070281230Abstract: The object of the present invention is to provide an image-receiving sheet for the electrophotography which is excellent in the adhesion resistance and can form an image having a high image quality and an effective manufacturing method thereof, and also a image-forming process and image-forming system for the electrophotography using the image-receiving sheet for the electrophotography. For this object, the present invention provides an image-receiving sheet for the electrophotography comprising a support and a toner image-receiving layer disposed on at least one surface of the support which comprises at least a polymer used for producing the toner image-receiving layer, wherein the image-receiving sheet for the electrophotography comprises particles and the particle size distribution (standard deviation/volume average particle diameter) of the particles projecting out of the most outer surface of the toner image-receiving sheet for the electrophotography is 0.4 or less.Type: ApplicationFiled: March 7, 2005Publication date: December 6, 2007Inventors: Kazuhito Miyake, Masamichi Kobayashi, Yoshio Tani
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Publication number: 20070218256Abstract: The present invention provides an image-receiving sheet for electrophotography that includes a support, a conductive undercoating layer, and an image-receiving layer on at least one surface of the support via the conductive undercoating layer, wherein the conductive undercoating layer includes a conductive metal oxide and a binder resin, wherein, when the conductive metal oxide has a spherical shape or an irregular shape, the number average particle diameter of the conductive metal oxide is 0.15 ?m or less, and when the conductive metal oxide has a needle-shape or a substantially needle-shape, the aspect ratio, length of long axis/length of short axis, of the conductive metal oxide is 5 or more, and the length of short axis is from 0.005 ?m to 0.05 ?m, and wherein the image-receiving layer includes a white pigment and fine particles, and the light transmittance of the image-receiving layer is 75% or less.Type: ApplicationFiled: March 14, 2007Publication date: September 20, 2007Applicant: FUJIFILM CorporationInventor: Yoshio Tani
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Patent number: 7270869Abstract: The object of the present invention is to provide an image-recording material that may prevent a flocculation of a coating liquid for image-recording layer that contains a water-dispersible emulsion and a water-soluble polymer compound, and that may exhibit an enhanced stability, present an improved film-forming performance, and provide superior surface conditions. In order to achieve the object, an image-recording material according to the present invention is provided, in which the image-recording material comprises a support and at least one image-recording layer on the support, wherein the image-recording layer is formed from a water-dispersible emulsion of which volume-average particle size is 55 nm or more and a water-soluble polymer compound of which weight-average molecular weight (Mw) is 400,000 or less. Preferably, the water-dispersible emulsion is a polyester emulsion. Preferably, the water-soluble polymer compound is polyethyleneoxide.Type: GrantFiled: July 20, 2004Date of Patent: September 18, 2007Assignee: FUJIFILM CorporationInventors: Yasutomo Goto, Yoshio Tani, Hiroshi Kajimaru
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Publication number: 20070122596Abstract: The present invention aims to provide an electrophotographic image-receiving sheet which can be more easily and efficiently manufactured and shows excellent image quality and glossiness, to provide a process for manufacturing the electrophotographic image-receiving sheet, and to provide a process for image formation using the electrophotographic image-receiving sheet. An electrophotographic image-receiving sheet which includes a support and a toner image-receiving layer which is to be disposed on at least one surface of the support and contains a thermoplastic resin, in which the electrophotographic image-receiving sheet is formed by soft calender treatment using a metal roller having surface temperature of glass transition temperature (Tg) of the thermoplastic resin minus 30° C. or more and the glass transition temperature plus 50° C. or less, so that the metal roller contacts a surface of the toner image-receiving layer.Type: ApplicationFiled: January 25, 2007Publication date: May 31, 2007Inventors: Shigehisa Tamagawa, Ashita Murai, Yukio Hirashima, Yasuhiro Ogata, Yoshio Tani
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Patent number: 7150909Abstract: The present invention aims to provide an process for image formation using an electrophotographic image-receiving sheet having excellent anti-offset properties, adhesion resistance, paper transport properties and gloss, and being resistant to cracks, and able to form a high-definition image. For this purpose, there is provided an electrophotographic image-receiving sheet which includes a toner image-receiving layer containing at least a thermoplastic resin and natural wax having an light transmittance of 78% or less, on a support having an light transmittance of 30% or less, and an process for image formation using this electrophotographic image-receiving sheet.Type: GrantFiled: April 17, 2003Date of Patent: December 19, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Tani, Yoshisada Nakamura, Yasuo Sakaguchi
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Patent number: 7109146Abstract: The present invention discloses an image receiving material for electronic photograph comprising a support made of base paper having a thermoplastic resin layer on each side of the support; a toner receiving layer, provided on one side of said support, which contains a thermoplastic resin; and one or more back layers provided on the other side of said support, wherein thermoplastic resin, porous particles and a cationic material are contained in any one of said back layers. Such image receiving material for electronic photograph of the present invention has a right side which is excellent in glossiness and thus allows electronic photographic image full of photographic touch to be formed thereon, and a back side having desirable printability for both of electronic photographic image and ink-jet printed image.Type: GrantFiled: October 5, 2001Date of Patent: September 19, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Tani, Fujio Kakimi
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Patent number: 7074495Abstract: The present invention aims to provide a recording material support having superior excellent surface smoothness and water resistance compared to the related art, to a process for efficiently manufacturing this recording material support, to a recording material which can form an image having excellent quality and gloss using this recording material support, and to process for image formation using this recording material. For this purpose, the recording material support comprising at least raw paper satisfies at least one condition selected from the Cobb size (30 seconds) of the surface on the side provided with the image-forming layer of the support, Oken type smoothness, Stökigt sizing degree, central square average roughness (SRa) and variation amount (?SRa) of SRa.Type: GrantFiled: April 10, 2003Date of Patent: July 11, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigehisa Tamagawa, Yasuhiro Ogata, Yoshio Tani, Yoshisada Nakamura, Ashita Murai, Hiroshi Yamamoto
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Publication number: 20060127651Abstract: An electrophotographic image-receiving sheet which includes a support, a toner-receiving layer which contains thermoplastic resin. The fixing belt electrophotographic sheet has an optimized separation force at a surface of the electrophotographic image-receiving sheet from the toner-receiving layer. Having a highly improved long-run properties, the fixing belt electrophotographic sheet realizes a stable paper feed without offset, and provides a good quality image with rich photographic features.Type: ApplicationFiled: February 6, 2006Publication date: June 15, 2006Inventors: Masataka Murata, Yoshisada Nakamura, Yasutomo Goto, Yoshio Tani, Yutaka Nogami, Yoshio Kanesawa