Patents by Inventor Katsutoshi Yamane
Katsutoshi Yamane 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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Patent number: 7947970Abstract: A radiation detector is constituted by: a recording photoconductive layer; and electrodes provided on both sides of the photoconductive layer. Electric charges, which are generated within the recording photoconductive layer when radiation is irradiated thereon while a predetermined biasing voltage is being applied between the electrodes, are read out as electric signals. The recording photoconductive layer is formed by amorphous selenium that contains alkali metal elements within a range from 0.0007 atomic ppm to 0.0035 atomic ppm.Type: GrantFiled: May 26, 2009Date of Patent: May 24, 2011Assignee: Fujifilm CorporationInventors: Kaku Irisawa, Kazuhiro Noda, Kenichi Hayashi, Katsutoshi Yamane, Kiyoteru Miyake
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Patent number: 7667179Abstract: A radiation image detector is provided. The radiation image detector is constituted by: a photoconductive layer that generates charges when electromagnetic waves are irradiated thereon; a common electrode to which a predetermined voltage is applied, provided on one side of the photoconductive layer; a plurality of divided electrodes that output signals corresponding to charges which are generated within the photoconductive layer, provided on the other side of the photoconductive layer; and protective layers that cover the edges of the divided electrodes, the edges being the side surfaces and portions of surfaces of the divided electrodes, which are continuous with the side surfaces, that face the photoconductive layer. The interfaces between the protective layers and the photoconductive layer are smooth surfaces across the entireties thereof.Type: GrantFiled: June 27, 2008Date of Patent: February 23, 2010Assignee: FUJIFILM CorporationInventors: Masaharu Ogawa, Katsutoshi Yamane
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Publication number: 20090294705Abstract: A radiation detector is constituted by: a recording photoconductive layer; and electrodes provided on both sides of the photoconductive layer. Electric charges, which are generated within the recording photoconductive layer when radiation is irradiated thereon while a predetermined biasing voltage is being applied between the electrodes, are read out as electric signals. The recording photoconductive layer is formed by amorphous selenium that contains alkali metal elements within a range from 0.0007 atomic ppm to 0.0035 atomic ppm.Type: ApplicationFiled: May 26, 2009Publication date: December 3, 2009Applicant: FUJIFILM CorporationInventors: Kaku Irisawa, Kazuhiro Noda, Kenichi Hayashi, Katsutoshi Yamane, Kiyoteru Miyake
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Publication number: 20090001254Abstract: A radiation image detector is provided. The radiation image detector is constituted by: a photoconductive layer that generates charges when electromagnetic waves are irradiated thereon; a common electrode to which a predetermined voltage is applied, provided on one side of the photoconductive layer; a plurality of divided electrodes that output signals corresponding to charges which are generated within the photoconductive layer, provided on the other side of the photoconductive layer; and protective layers that cover the edges of the divided electrodes, the edges being the side surfaces and portions of surfaces of the divided electrodes, which are continuous with the side surfaces, that face the photoconductive layer. The interfaces between the protective layers and the photoconductive layer are smooth surfaces across the entireties thereof.Type: ApplicationFiled: June 27, 2008Publication date: January 1, 2009Applicant: FUJIFILM CorporationInventors: Masaharu OGAWA, Katsutoshi YAMANE
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Publication number: 20080203336Abstract: A radiation image detector is constituted by: a first electrode layer, to which negative voltage is applied, and that transmits recording electromagnetic waves bearing radiation image information; a photoconductive layer that generates charges when irradiated by the recording electromagnetic waves transmitted through the first electrode layer; a second electrode layer provided at the side of the photoconductive layer opposite that of the first electrode layer, having a plurality of electrodes for detecting signals corresponding to the charges generated in the photoconductive layer; and an electron transport layer provided between the photoconductive layer and the second electrode layer so as to cover the entire surface of the second electrode layer, formed by an insulating material doped with electron transport molecules.Type: ApplicationFiled: February 26, 2008Publication date: August 28, 2008Applicant: FUJIFILM CORPORATIONInventors: Kaku Irisawa, Katsutoshi Yamane
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Patent number: 7309564Abstract: A photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide containing a silver iodide at 40 mol % or more, a non-photosensitive organic silver salt, and a reducing agent, wherein the photothermographic material contains two or more kinds of the reducing agent at the mixing ratio to satisfy at least one of a), b), c) and d): a) a difference between a sensitivity or b) a difference between a maximum density is 0.10 or less, when developed at 120° C. for 10 sec and a sensitivity when developed at 120° C. for 14 sec; c) a difference between a sensitivity or d) a difference between a maximum density is 0.10 or less, when developed at 117° C. for 12 sec and a sensitivity when developed at 123° C. for 12 sec. An image forming method using the photothermographic material is also provided.Type: GrantFiled: November 9, 2005Date of Patent: December 18, 2007Assignee: Fujifilm CorporationInventors: Yasuhiro Yoshioka, Katsutoshi Yamane, Yasuhiko Goto
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Patent number: 7267933Abstract: An image forming method using a photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, in which (1) the photothermographic material is exposed and thermally developed during transportation at a transportation speed of 23 mm/sec or faster, (2) the non-photosensitive organic silver salt contains 30 mol % to 85 mol % of silver behenate and an amount of the time until a leading end of the photothermographic material reaches a thermal development station after a power source for ae thermal developing apparatus is turned on is 15 minutes or less, or (3) a coating amount of silver inf the photothermographic material is 1.9 g/m2 or less and a thermal development time is 12 sec or less.Type: GrantFiled: May 30, 2003Date of Patent: September 11, 2007Assignee: Fujifilm CorporationInventors: Takayoshi Oyamada, Senzo Sasaoka, Katsutoshi Yamane
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Patent number: 7264919Abstract: A mono-sheet heat-developable photosensitive material, which comprises a layer containing a light-sensitive silver halide, a light-insensitive organic fatty acid silver salt, a thermal developer and a binder on a support, and exhibits substantially no sensitivity after being subjected to heat-development.Type: GrantFiled: April 25, 2003Date of Patent: September 4, 2007Assignee: Fujifilm CorporationInventors: Katsutoshi Yamane, Masatoshi Nakanishi, Fumito Nariyuki
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Patent number: 7214476Abstract: An image forming method applying X-ray exposure to a photothermographic material having, on at least one surface of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein the photothermographic material is brought into close contact with a fluorescence intensifying screen containing a fluorescent material that emits light, 50% or more of which has a wavelength in a range of 350 nm or more and 420 nm or less.Type: GrantFiled: September 27, 2004Date of Patent: May 8, 2007Assignee: Fujifilm CorporationInventors: Katsutoshi Yamane, Katsuhiro Kohda
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Patent number: 7179585Abstract: The present invention provides an image forming method using an image recording apparatus that includes a laser irradiating means for laser scanning of a photothermographic material that has a support and includes on at least one surface thereof a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, and a conveying means for guiding the photothermographic material in a sub-scanning direction to a thermal development unit, wherein the reducing agent is a specific bisphenol compound. The invention also provides another image forming method including carrying out thermal development, with an interval time equal to or less than 12 seconds, of the photothermographic material.Type: GrantFiled: February 2, 2004Date of Patent: February 20, 2007Assignee: Fujifilm CorporationInventors: Eiichi Okutsu, Katsutoshi Yamane, Yasuhiro Yoshioka
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Patent number: 7132226Abstract: A photothermographic material comprising a support, and an image-forming layer and a non-image-forming layer provided on the support, wherein the image-forming layer comprises a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder; the non-image-forming layer includes a slipping agent having a melting point of 80° C. to 120° C.; the coefficient (K1) of dynamic friction measured at a velocity of 0.1 cm/sec and the coefficient (K2) of dynamic friction measured at a velocity of 10 cm/sec have a relation represented by formula (1): Formula (1) 1.20>K1/K2>0.90. Also provided is an image-forming method using the photothermographic material.Type: GrantFiled: September 22, 2005Date of Patent: November 7, 2006Assignee: Fuji Photo Film Co., Ltd.Inventor: Katsutoshi Yamane
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Patent number: 7105282Abstract: An image forming method using a photothermographic material a photosensitive silver halide, a reducing agent, a binder and a non-photosensitive organic silver salt, wherein: the photothermographic material is discharged from a thermal developing device within 35 seconds after heating for thermal development is ceased.Type: GrantFiled: August 21, 2003Date of Patent: September 12, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsutoshi Yamane, Sumito Yamada, Eiichi Okutsu, Tomoyuki Ohzeki, Yutaka Oka
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Patent number: 7101658Abstract: A heat-developable photosensitive material includes at least a photosensitive silver halide particle, a nonphotonsensitive organic silver salt, a developing accelerator, a reducing agent and a binder on a support, wherein the photosensitive silver halide includes silver iodide at 5 mol % to 100 mol % and the average particle size of the photosensitive silver halide is 5 nm to 80 nm. A heat developing method for the heat-developable photosensitive material is also disclosed.Type: GrantFiled: September 11, 2002Date of Patent: September 5, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Tomoyuki Ohzeki, Katsutoshi Yamane
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Publication number: 20060134567Abstract: A heat-developable photosensitive material includes at least a photosensitive silver halide particle, a nonphotonsensitive organic silver salt, a developing accelerator, a reducing agent and a binder on a support, wherein the photosensitive silver halide includes silver iodide at 5 mold to 100 mold and the average particle size of the photosensitive silver halide is 5 nm to 80 nm. A heat developing method for the heat-developable photosensitive material is also disclosed.Type: ApplicationFiled: December 28, 2005Publication date: June 22, 2006Inventors: Tomoyuki Ohzeki, Katsutoshi Yamane
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Patent number: 7060423Abstract: The heat-developable photosensitive material of the present invention comprises a support, a photosensitive silver halide, a non-photosensitive organic silver salt, a heat developer and a binder, wherein the photosensitive silver halide is a specific photosensitive silver halide.Type: GrantFiled: July 10, 2002Date of Patent: June 13, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsutoshi Yamane, Yasuhiko Goto
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Publication number: 20060078835Abstract: A photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide containing a silver iodide at 40 mol % or more, a non-photosensitive organic silver salt, and a reducing agent, wherein the photothermographic material contains two or more kinds of the reducing agent at the mixing ratio to satisfy at least one of a), b), c) and d): a) a difference between a sensitivity or b) a difference between a maximum density is 0.10 or less, when developed at 120° C. for 10 sec and a sensitivity when developed at 120° C. for 14 sec; c) a difference between a sensitivity or d) a difference between a maximum density is 0.10 or less, when developed at 117° C. for 12 sec and a sensitivity when developed at 123° C. for 12 sec. An image forming method using the photothermographic material is also provided.Type: ApplicationFiled: November 9, 2005Publication date: April 13, 2006Inventors: Yasuhiro Yoshioka, Katsutoshi Yamane, Yasuhiko Goto
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Publication number: 20060068345Abstract: A photothermographic material comprising a support, and an image-forming layer and a non-image-forming layer provided on the support, wherein the image-forming layer comprises a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder; the non-image-forming layer includes a slipping agent having a melting point of 80° C. to 120° C.; the coefficient (K1) of dynamic friction measured at a velocity of 0.1 cm/sec and the coefficient (K2) of dynamic friction measured at a velocity of 10 cm/sec have a relation represented by formula (1): Formula (1) 1.20>K1/K2>0.90. Also provided is an image-forming method using the photothermographic material.Type: ApplicationFiled: September 22, 2005Publication date: March 30, 2006Inventor: Katsutoshi Yamane
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Patent number: 6930698Abstract: An image forming method comprising exposing a heat-developable light-sensitive material comprising a support having thereon at least a light-sensitive silver halide having a silver iodide content of 5 to 100 mol %, a light-insensitive organic silver salt, a heat developing agent, and a binder by means of a scanning optical system having a light source emitting a laser beam having an emission peak between 350 nm and 450 nm to form a latent image on said heat-developable light-sensitive material, heating said heat-developable light-sensitive material to about 80 to 250° C. in a heat development section, and cooling said heat-developable light-sensitive material having been heat treated in said heat development section to or below a development stopping temperature while said heat-developable light-sensitive material is transported in a cooling section.Type: GrantFiled: August 9, 2004Date of Patent: August 16, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhiko Goto, Katsutoshi Yamane
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Publication number: 20050074707Abstract: An image forming method applying X-ray exposure to a photothermographic material having, on at least one surface of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein the photothermographic material is brought into close contact with a fluorescence intensifying screen containing a fluorescent material that emits light, 50% or more of which has a wavelength in a range of 350 nm or more and 420 nm or less.Type: ApplicationFiled: September 27, 2004Publication date: April 7, 2005Inventors: Katsutoshi Yamane, Katsuhiro Kohda
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Publication number: 20050024469Abstract: An image forming method comprising exposing a heat-developable light-sensitive material comprising a support having thereon at least a light-sensitive silver halide having a silver iodide content of 5 to 100 mol %, a light-insensitive organic silver salt, a heat developing agent, and a binder by means of a scanning optical system having a light source emitting a laser beam having an emission peak between 350 nm and 450 nm to form a latent image on said heat-developable light-sensitive material, heating said heat-developable light-sensitive material to about 80 to 250° C. in a heat development section, and cooling said heat-developable light-sensitive material having been heat treated in said heat development section to or below a development stopping temperature while said heat-developable light-sensitive material is transported in a cooling section.Type: ApplicationFiled: August 9, 2004Publication date: February 3, 2005Inventors: Yasuhiko Goto, Katsutoshi Yamane