Patents by Inventor Koichiro Kuroda
Koichiro Kuroda 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: 11912053Abstract: To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate, a release layer provided on the substrate, and a transfer layer provided on the release layer, wherein the transfer layer is provided peelably from the release layer, and the release layer contains a silsesquioxane.Type: GrantFiled: September 15, 2021Date of Patent: February 27, 2024Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kazuya Yoshida, Tomohiko Imoda, Yoshihiro Imakura, Yasuyuki Shouji, Daisuke Fukui, Ryoji Hattori, Koichiro Kuroda
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Patent number: 11697299Abstract: Provided are a combination of a thermal transfer sheet and an intermediate transfer medium which is capable of accurately transferring only a transfer layer of the intermediate transfer medium desired to be transferred onto a transfer receiving article in the production of a print, and a thermal transfer sheet which is used in combination with an intermediate transfer medium. Also provided are a method for producing a print, comprising accurately transferring only a transfer layer of an intermediate transfer medium desired to be transferred onto a transfer receiving article, and a thermal transfer printer which is used in this method for producing a print. In the thermal transfer sheet which is used in combination with an intermediate transfer medium, inhibit layer 2 is disposed on substrate 1, and the inhibit layer 2 contains a carnauba wax.Type: GrantFiled: January 31, 2019Date of Patent: July 11, 2023Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiro Imakura, Koichiro Kuroda
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Publication number: 20210402819Abstract: To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate, a release layer provided on the substrate, and a transfer layer provided on the release layer, wherein the transfer layer is provided peelably from the release layer, and the release layer contains a silsesquioxane.Type: ApplicationFiled: September 15, 2021Publication date: December 30, 2021Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kazuya YOSHIDA, Tomohiko IMODA, Yoshihiro IMAKURA, Yasuyuki SHOUJI, Daisuke FUKUI, Ryoji HATTORI, Koichiro KURODA
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Patent number: 11148450Abstract: To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate 1, a release layer 2 provided on the substrate 1, and a transfer layer 10 provided on the release layer 2, wherein the transfer layer 10 is provided peelably from the release layer 2, and the release layer 2 contains a silsesquioxane.Type: GrantFiled: January 31, 2019Date of Patent: October 19, 2021Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kazuya Yoshida, Tomohiko Imoda, Yoshihiro Imakura, Yasuyuki Shouji, Daisuke Fukui, Ryoji Hattori, Koichiro Kuroda
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Patent number: 10926551Abstract: A heat transfer system is provided with a first heating element that transfers ink in an ink layer to a transfer-receiving body in a first pattern, a winding part that winds an ink ribbon having ink transferred therein on the downstream side of the first heating element in such a manner that a back surface layer is positioned outside the ink layer, a second heating element that transfers ink in the ink layer to the back surface layer inside the ink layer in a second pattern near the winding part, and a controller that controls the heating elements, and the controller controls the first heating element to transfer ink corresponding to the first pattern by transferring a portion of the ink layer, and controls the second heating element to transfer ink corresponding to the second pattern by transferring the ink layer as a whole.Type: GrantFiled: September 27, 2017Date of Patent: February 23, 2021Assignee: Dai Nippon Printing Co., Ltd.Inventors: Koichiro Kuroda, Yoshiyuki Nakamura, Daisuke Fukui, Miki Kato, Tomoko Suzuki
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Publication number: 20200369063Abstract: Provided are a combination of a thermal transfer sheet and an intermediate transfer medium which is capable of accurately transferring only a transfer layer of the intermediate transfer medium desired to be transferred onto a transfer receiving article in the production of a print, and a thermal transfer sheet which is used in combination with an intermediate transfer medium. Also provided are a method for producing a print, comprising accurately transferring only a transfer layer of an intermediate transfer medium desired to be transferred onto a transfer receiving article, and a thermal transfer printer which is used in this method for producing a print. In the thermal transfer sheet which is used in combination with an intermediate transfer medium, inhibit layer 2 is disposed on substrate 1, and the inhibit layer 2 contains a carnauba wax.Type: ApplicationFiled: January 31, 2019Publication date: November 26, 2020Applicant: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiro IMAKURA, Koichiro KURODA
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Publication number: 20200369012Abstract: To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate 1, a release layer 2 provided on the substrate 1, and a transfer layer 10 provided on the release layer 2, wherein the transfer layer 10 is provided peelably from the release layer 2, and the release layer 2 contains a silsesquioxane.Type: ApplicationFiled: January 31, 2019Publication date: November 26, 2020Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kazuya YOSHIDA, Tomohiko IMODA, Yoshihiro IMAKURA, Yasuyuki SHOUJI, Daisuke FUKUI, Ryoji HATTORI, Koichiro KURODA
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Publication number: 20190202212Abstract: A heat transfer system is provided with a first heating element that transfers ink in an ink layer to a transfer-receiving body in a first pattern, a winding part that winds an ink ribbon having ink transferred therein on the downstream side of the first heating element in such a manner that a back surface layer is positioned outside the ink layer, a second heating element that transfers ink in the ink layer to the back surface layer inside the ink layer in a second pattern near the winding part, and a controller that controls the heating elements, and the controller controls the first heating element to transfer ink corresponding to the first pattern by transferring a portion of the ink layer, and controls the second heating element to transfer ink corresponding to the second pattern by transferring the ink layer as a whole.Type: ApplicationFiled: September 27, 2017Publication date: July 4, 2019Applicant: Dai Nippon Printing Co., Ltd.Inventors: Koichiro KURODA, Yoshiyuki NAKAMURA, Daisuke FUKUI, Miki KATO, Tomoko SUZUKI
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Patent number: 7220537Abstract: This invention provides a silver halide emulsion, a silver halide photographic material and an image forming method, which is excellent in high sensitivity, good gradation, coating composition store stability and latent image store stability regardless exposing method, particularly excellent latent image store stability at high intensity and shot period exposure of digital exposure, and by which a high quality print is obtained. The silver halide emulsion contains silver halide grains having silver chloride content of at least 90 mol %, silver iodide content of 0-2.0 mol %, and silver bromide content of 0.02-5.Type: GrantFiled: January 31, 2003Date of Patent: May 22, 2007Assignee: Konica Minolta Photo Imaging, Inc.Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
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Patent number: 7163785Abstract: A silver halide photographic material, including a support having thereon a silver halide emulsion layer, the silver halide emulsion layer containing silver halide particles having a silver chloride content of more than or equal to 90 mol %, wherein a compound represented by Formula (S) is contained in the interior and on a surface of the silver halide particles and in a binder of the silver halide emulsion layer, and the silver halide particles have more than two silver halide phases therein having different concentration of the compound represented by Formula (S):Type: GrantFiled: November 20, 2002Date of Patent: January 16, 2007Assignee: Konica Minolta Photo Imaging, Inc.Inventors: Toshiya Kondo, Koichiro Kuroda
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Publication number: 20060121397Abstract: This invention provides a silver halide emulsion, a silver halide photographic material and an image forming method, which is excellent in high sensitivity, good gradation, coating composition store stability and latent image store stability regardless exposing method, particularly excellent latent image store stability at high intensity and shot period exposure of digital exposure, and by which a high quality print is obtained. The silver halide emulsion contains silver halide grains having silver chloride content of at least 90 mol %, silver iodide content of 0-2.0 mol %, and silver bromide content of 0.02-5.0 mol %, and containing at least two kinds of Group 8 metal compounds containing at least one iridium compound inside of the silver halide grains, in which the silver halide grains are subjected to selenium sensitization in presence of a compound represented by formula (S).Type: ApplicationFiled: January 31, 2003Publication date: June 8, 2006Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
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Publication number: 20060057509Abstract: A silver halide photographic material, including a support having thereon a silver halide emulsion layer, the silver halide emulsion layer containing a binder and silver halide particles having a silver chloride content of more than or equal to 90 mol %, wherein a compound represented by Formula (S) is contained in an interior portion and on a surface of the silver halide particles and in a binder of the silver halide emulsion layer:Type: ApplicationFiled: November 20, 2002Publication date: March 16, 2006Applicant: Konica Minolta Photo Imaging, Inc.Inventors: Toshiya Kondo, Koichiro Kuroda
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Patent number: 6815157Abstract: A silver halide emulsion comprising silver halide grains containing at least 90 mol % chloride, 0.02 to 5.0 mol % bromide and 0 to 2.Type: GrantFiled: January 14, 2004Date of Patent: November 9, 2004Assignee: Konica Minolta Holdings, Inc.Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
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Publication number: 20040157176Abstract: A silver halide emulsion which exhibits superior latent image stability when subjected to subjected to digital exposure at a high intensity for a short time is disclosed, comprising silver halide gains containing at least 90 mol % chloride, 0.02 to 5.0 mol % bromide and 0 to 2.0 mol % iodide, based on silver and occluding at least one Group 8 metal compounds and at least one iridium compound, and the silver halide grains are subjected to selenium sensitization which is undergone in the presence of at least one of compounds represented by the following formulas and silver or gold sulfide grains. A preparation method of the emulsion is also disclosed.Type: ApplicationFiled: February 3, 2004Publication date: August 12, 2004Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
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Publication number: 20040146816Abstract: A silver halide emulsion comprising silver halide grains containing at least 90 mol % chloride, 0.02 to 5.0 mol % bromide and 0 to 2.0 mol % iodide, which is prepared by a process comprising (i) forming a silver halide grain emulsion, (ii) subjecting the silver halide emulsion to desalting and (iii) subjecting the desalted silver halide emulsion to chemical sensitization by adding a chemical sensitizer, wherein in the step (iii), at least one compound represented by the following formula (1) to (4) is added before adding a chemical sensitizer and at least one compound represented by the following formula (1) to (4) is further added after adding a chemical sensitizer.Type: ApplicationFiled: January 14, 2004Publication date: July 29, 2004Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
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Patent number: 6677112Abstract: A silver halide emulsion containing silver halide grains comprising silver chlorobromide grains or silver chloroiodobromide grains, wherein each of silver halide grains has a silver chloride content of not less than 98% and comprises a silver bromide-containing layer having a silver bromide content of 0.5 to 5%, and the silver bromide-containing layer is located at a depth of 0 to 0.01 &mgr;m from the surface of the grain. A silver halide emulsion comprising silver halide grains containing Compound A having adsorptivity to silver, wherein each of the silver halide grains has a silver chloride content of not less than 90% has a core-shell structure comprised of a core and shell having different contents of Compound A each other, and the content of Compound A in the shell is smaller than the content of Compound A in the core.Type: GrantFiled: January 3, 2003Date of Patent: January 13, 2004Assignee: Konica CorporationInventors: Shuji Murakami, Yuji Tanaka, Mitsuhiro Kubotera, Koichiro Kuroda
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Publication number: 20030203328Abstract: A silver halide emulsion containing silver halide grains comprising silver chlorobromide grains or silver chloroiodobromide grains, wherein each of silver halide grains has a silver chloride content of not less than 98% and comprises a silver bromide-containing layer having a silver bromide content of 0.5 to 5%, and the silver bromide-containing layer is located at a depth of 0 to 0.01 &mgr;m from the surface of the grain. A silver halide emulsion comprising silver halide grains containing Compound A having adsorptivity to silver, wherein each of the silver halide grains has a silver chloride content of not less than 90% has a core-shell structure comprised of a core and shell having different contents of Compound A each other, and the content of Compound A in the shell is smaller than the content of Compound A in the core.Type: ApplicationFiled: January 3, 2003Publication date: October 30, 2003Inventors: Shuji Murakami, Yuji Tanaka, Mitsuhiro Kubotera, Koichiro Kuroda
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Patent number: 6632596Abstract: A silver halide emulsion is disclosed, comprising silver halide grains having a chloride content of not less than 90 mol % and internally doped with an iridium compound (A) and a compound (B) forming a stronger electron trap than said iridium compound (A), the silver halide grains meeting the following requirement: 10<X<1000 and 0<Y≦X wherein X represents an average number of molecules of said iridium compound (A) contained per grain and Y represents an average number of molecules of said compound (B) contained per grain.Type: GrantFiled: July 13, 2001Date of Patent: October 14, 2003Assignee: Konica CorporationInventor: Koichiro Kuroda
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Publication number: 20020051949Abstract: A silver halide emulsion is disclosed, comprising silver halide grains having a chloride content of not less than 90 mol% and internally doped with an iridium compound (A) and a compound (B) forming a stronger electron trap than said iridium compound (A), the silver halide grains meeting the following requirement:Type: ApplicationFiled: July 13, 2001Publication date: May 2, 2002Applicant: KONICA CORPORATIONInventor: Koichiro Kuroda
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Patent number: 6322960Abstract: A silver halide emulsion is disclosed, containing silver halide grains having a chloride content of not less than 90 mol %, wherein the silver halide grains each are internally doped with compound (A), compound (B) and compound (C); compounds (A) and (B) each meeting specified requirements and compound (C) being an iridium compound.Type: GrantFiled: February 25, 2000Date of Patent: November 27, 2001Assignee: Konica CorporationInventors: Shuji Murakami, Koichiro Kuroda, Yumiko Osawa, Junji Ito, Shinichi Suzuki