Patents by Inventor Katsuyuki Oshima
Katsuyuki Oshima 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: 20040223044Abstract: The present invention relates to an intermediate transfer recording medium, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, can transfer a protective layer on an image with good accuracy in a simple manner, and can provide an object with an image formed thereon which is highly difficult to be altered or forged, a process for producing the same, and a method for image formation. The intermediate transfer recording medium comprises: a sheet substrate provided with a resin layer; and a transparent sheet provided with a receptive layer, said transparent sheet provided with the receptive layer having been stacked on the sheet substrate provided with the resin layer, the transparent sheet portion including the receptive layer having been half cut, a hologram formation layer being stacked on the transparent sheet, the resin layer being separable from the transparent sheet.Type: ApplicationFiled: March 14, 2002Publication date: November 11, 2004Applicant: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Patent number: 6815397Abstract: A thermal transfer sheet is provided that can yield thermally transferred images, which possess excellent various fastness or resistance properties even under severe service conditions, and comprises a transferable protective layer having good transferability. In a thermal transfer sheet comprising a substrate sheet and a thermally transferable protective layer on the substrate sheet, the thermally transferable protective layer comprises a scratch-resistant layer which is repeatedly provided one by one for each picture plane unit in the thermal transfer sheet. An area of the scratch-resistant layer for each picture plane unit is smaller than an area of an object in its transfer surface. By virtue of this construction, at the time of the transfer of a protective layer onto an object, layer cutting does not occur within the scratch-resistant layer but within other layer (such as peel layer or adhesive layer), and, consequently, the protective layer can be transferred with good transferability.Type: GrantFiled: June 7, 2002Date of Patent: November 9, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tadahiro Ishida, Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Etsuo Takasaki
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Publication number: 20040213927Abstract: A thermal transfer sheet is provided that can yield thermally transferred images, which possess excellent various fastness or resistance properties even under severe service conditions, and comprises a transferable protective layer having good transferability. In a thermal transfer sheet comprising a substrate sheet and a thermally transferable protective layer on the substrate sheet, the thermally transferable protective layer comprises a scratch-resistant layer which is repeatedly provided one by one for each picture plane unit in the thermal transfer sheet. An area of the scratch-resistant layer for each picture plane unit is smaller than an area of an object in its transfer surface. By virtue of this construction, at the time of the transfer of a protective layer onto an object, layer cutting does not occur within the scratch-resistant layer but within other layer (such as peel layer or adhesive layer), and, consequently, the protective layer can be transferred with good transferability.Type: ApplicationFiled: May 19, 2004Publication date: October 28, 2004Applicant: Dai Nippon Printing Co., Ltd.Inventors: Tadahiro Ishida, Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Etsuo Takasaki
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Patent number: 6803936Abstract: An image formation method and a thermal transfer sheet for use in the image formation method are provided. According to the image formation method and the thermal transfer sheet, an intermediate transfer recording medium comprising a substrate film and a transfer part, comprising at least a receptive layer, provided separably on the substrate film is used, and, at the time of the transfer of the transfer part in the intermediate transfer recording medium onto an object, the transfer of the transfer part onto the object in its nontransfer region, onto which the transfer part should not be transferred, can be avoided without installing any special ancillary tool on an image forming apparatus. In the method for image formation, a thermal transfer sheet comprising a substrate and at least a peel-off layer provided on the substrate is provided.Type: GrantFiled: March 10, 2003Date of Patent: October 12, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tsuaki Odaka, Kenji Sakamoto, Katsuyuki Oshima, Tatsuya Kita, Kazuhiro Masuda
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Publication number: 20040182506Abstract: The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and an intermediate transfer recording medium for use in the method for image formation. The method for image formation comprises the steps of: providing an intermediate transfer recording medium comprising a substrate film and a transfer portion provided separably on the substrate film; forming an image on the intermediate transfer recording medium in its transfer portion; transferring the transfer portion onto an object; and, thereafter, again transferring the intermediate transfer recording medium in its next transfer portion once or more onto the object with the image formed thereon. In this case, in the intermediate transfer recording medium, a hologram image is set every at least second image plane, and an image can be formed on the transfer portion having the hologram image.Type: ApplicationFiled: January 28, 2004Publication date: September 23, 2004Applicant: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Patent number: 6786993Abstract: The present invention relates to a heat transfer cover film characterized in that a specific transparent resin layer (2) is releasably provided on a substrate film (1). This transparent resin layer (2) can be easily laminated on the surface of the resulting image (7Y, 7M and 7C) by heat transfer means, making it possible to provide expeditious provision of image representations which are improved in terms of such properties as durability, gloss and color development and is curl-free.Type: GrantFiled: August 7, 2003Date of Patent: September 7, 2004Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii
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Patent number: 6752550Abstract: A holding mechanism 10 for holding an ink ribbon 20 includes a transparent shell 11 and a board 12. The transparent shell 11 of the ink ribbon 20 is provided with wind slack preventive portions 11a to 11d which prevent rotations of a feed bobbin 21 and reel bobbin 22, and wind meandering preventive portions 11e, 11f which bears down an axial end 23a of a film 23. The ink ribbon 20 can be stably held by the holding mechanism 10 during a transportation and a loading thereof. The transparent shell 11 is provided with support portions 11g, 11f which improve a stability when loading.Type: GrantFiled: March 25, 2002Date of Patent: June 22, 2004Assignees: Olympus Optical Co., LTD, Mitsubishi Denki Kabushiki Kaisha, Dai Nippon Printing Co., Ltd.Inventors: Toshiyuki Toyofuku, Hiroyuki Kaneko, Satoru Kato, Yousuke Kobayashi, Hisashi Yamada, Katsuyuki Oshima, Kozo Odamura, Takayuki Imai
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Publication number: 20040075211Abstract: To provide a curl straightening method for image receiving paper for sublimation dye transfer, which is capable of realizing a smaller roll core diameter of the roll paper. The curl of an image receiving paper 100 for sublimation dye transfer having stiffness from 500 to 2,500 mg in a direction parallel to the printing direction, which is measured according to JIS L1085, JIS L1096, is straightened by allowing the image receiving paper 100 to pass through gaps 4a, 5a of a guide 3 that bends the image receiving paper 100 in a reverse curling direction.Type: ApplicationFiled: September 29, 2003Publication date: April 22, 2004Inventors: Taro Suzuki, Masamitsu Suzuki, Tatsuya Kita, Katsuyuki Oshima
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Patent number: 6718880Abstract: The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and an intermediate transfer recording medium for use in the method for image formation. The method for image formation comprises the steps of: providing an intermediate transfer recording medium comprising a substrate film and a transfer portion provided separably on the substrate film; forming an image on the intermediate transfer recording medium in its transfer portion; transferring the transfer portion onto an object; and, thereafter, again transferring the intermediate transfer recording medium in its next transfer portion once or more onto the object with the image formed thereon. In this case, in the intermediate transfer recording medium, a hologram image is set every at least second image plane, and an image can be formed on the transfer portion having the hologram image.Type: GrantFiled: March 4, 2002Date of Patent: April 13, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Publication number: 20040058817Abstract: Disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the substrate sheet is a pulp paper, the intermediate layer is formed from an organic solvent solution of a resin, and the dye receptor layer is formed from an aqueous resin liquid. By virtue of this structure, the thermal transfer image receiving sheet can be prevented from occurrence of curling caused by temperature change. Also disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the intermediate layer is formed from either an acrylic resin or a resin at least a part of which is crosslinked.Type: ApplicationFiled: September 29, 2003Publication date: March 25, 2004Inventors: Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi, Kazunobu Imoto, Hidetake Takahara, Jitsuhiko Ando
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Publication number: 20040029731Abstract: The present invention relates to a heat transfer cover film characterized in that a specific transparent resin layer (2) is releasably provided on a substrate film (1). This transparent resin layer (2) can be easily laminated on the surface of the resulting image (7Y, 7M and 7C) by heat transfer means, making it possible to provide expeditious provision of image representations which are improved in terms of such properties as durability, gloss and color development and is curl-free.Type: ApplicationFiled: August 7, 2003Publication date: February 12, 2004Applicant: Dai Nippon Insatsu Kabushiki KaishaInventors: Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii
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Patent number: 6664212Abstract: Disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the substrate sheet is a pulp paper, the intermediate layer is formed from an organic solvent solution of a resin, and the dye receptor layer is formed from an aqueous resin liquid. By virtue of this structure, the thermal transfer image receiving sheet can be prevented from occurrence of curling caused by temperature change. Also disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the intermediate layer is formed from either an acrylic resin or a resin at least a part of which is crosslinked.Type: GrantFiled: November 9, 2001Date of Patent: December 16, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi, Kazunobu Imoto, Hidetake Takahara, Jitsuhiko Ando
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Patent number: 6656881Abstract: The present invention is directed to the provision of a thermal transfer image-receiving sheet which, even when used with various printers, can be carried with improved accuracy, can form color images without misregistration, and does not permit traces of spikes to reach an image-receiving face and, thus, can minimize the influence of spikes on the quality of images. In a thermal transfer image-receiving sheet 10 comprising a colorant-receptive layer 2 provided on a substrate 1, the substrate 1 is formed of a laminate comprising a plastic film 3 having in its inside microvoids, a support 4, and a backside film 5 provided in that order from the colorant-receptive layer 2 side and the backside film 5 is an unstretched polyolefin film.Type: GrantFiled: April 26, 2001Date of Patent: December 2, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Koichi Shirai, Tadahiro Ishida, Katsuyuki Oshima
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Patent number: 6657649Abstract: The present invention to provide an intermediate transfer recording medium and a method for image formation using the same which, can prepare an object having whole plane image with no blank in the edge of the print, and can yield a thermally transferred image possessing excellent various fastness properties even under severe service conditions.Type: GrantFiled: May 15, 2002Date of Patent: December 2, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kozo Odamura, Katsuyuki Oshima, Takayuki Imai
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Publication number: 20030174197Abstract: An image formation method and a thermal transfer sheet for use in the image formation method are provided. According to the image formation method and the thermal transfer sheet, an intermediate transfer recording medium comprising a substrate film and a transfer part, comprising at least a receptive layer, provided separably on the substrate film is used, and, at the time of the transfer of the transfer part in the intermediate transfer recording medium onto an object, the transfer of the transfer part onto the object in its nontransfer region, onto which the transfer part should not be transferred, can be avoided without installing any special ancillary tool on an image forming apparatus. In the method for image formation, a thermal transfer sheet comprising a substrate and at least a peel-off layer provided on the substrate is provided.Type: ApplicationFiled: March 10, 2003Publication date: September 18, 2003Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Tsuaki Odaka, Kenji Sakamoto, Katsuyuki Oshima, Tatsuya Kita, Kazuhiro Masuda
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Publication number: 20030077428Abstract: A thermal transfer sheet is provided that can yield thermally transferred images, which possess excellent various fastness or resistance properties even under severe service conditions, and comprises a transferable protective layer having good transferability. In a thermal transfer sheet comprising a substrate sheet and a thermally transferable protective layer on the substrate sheet, the thermally transferable protective layer comprises a scratch-resistant layer which is repeatedly provided one by one for each picture plane unit in the thermal transfer sheet. An area of the scratch-resistant layer for each picture plane unit is smaller than an area of an object in its transfer surface. By virtue of this construction, at the time of the transfer of a protective layer onto an object, layer cutting does not occur within the scratch-resistant layer but within other layer (such as peel layer or adhesive layer), and, consequently, the protective layer can be transferred with good transferability.Type: ApplicationFiled: June 7, 2002Publication date: April 24, 2003Applicant: Dai Nippon Printing Co., Ltd.Inventors: Tadahiro Ishida, Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Etsuo Takasaki
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Publication number: 20030007058Abstract: The present invention relates to a method for image formation using an intermediate transfer recording medium. An object of the present invention is to provide an intermediate transfer recording medium and a method for image formation which can yield a thermally transferred image possessing excellent various fastness properties even under severe service conditions, can transfer a protective layer onto an image on the object without transfer failure in an accurate and simple manner, and, in addition, can yield a highly lightfast image which is not deteriorated upon exposure to ultraviolet light. The intermediate transfer recording medium comprises: a sheet substrate provided with a resin layer; and a transparent sheet provided with a receptive layer, the sheet substrate provided with the resin layer having been put on top of the transparent sheet provided with the receptive layer so that the transfer sheet faces the resin layer.Type: ApplicationFiled: April 12, 2002Publication date: January 9, 2003Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kozo Odamura, Katsuyuki Oshima, Takayuki Imai, Shinji Kometani, Masayasu Yamazaki
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Publication number: 20030001942Abstract: The present invention to provide an intermediate transfer recording medium and a method for image formation using the same which, can prepare an object having whole plane image with no blank in the edge of the print, and can yield a thermally transferred image possessing excellent various fastness properties even under severe service conditions.Type: ApplicationFiled: May 15, 2002Publication date: January 2, 2003Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kozo Odamura, Katsuyuki Oshima, Takayuki Imai
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Publication number: 20020195005Abstract: There is provided a print which has been produced by providing an intermediate transfer recording medium comprising a substrate film and a transfer portion, comprising at least a receptive layer, provided separably on the substrate film, forming a thermal transfer image onto the transfer portion, and retransferring the transfer portion onto an object while accurately and stably forming a non-transferred portion onto a part of the object and, in addition, does not increase a production cost for providing a final print. The intermediate transfer recording medium comprises a substrate film and a transfer portion comprising at least a receptive layer, the transfer portion being provided separably on the substrate film. The print has on its at least one side a transfer portion-non-retransferred portion.Type: ApplicationFiled: April 2, 2002Publication date: December 26, 2002Applicant: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai
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Patent number: 6489266Abstract: There is provided an image receiving sheet which comprises: a substrate sheet, a reflection layer disposed on at least one surface side of the substrate sheet so as to be laid on at least one area thereof, and a receptor layer disposed on at least one surface side of the substrate sheet, wherein the reflection layer has at least one area provided with a convexo-concave pattern, the area provided with the convexo-concave pattern of the reflection layer being extended within an area provided with the receptor layer. The reflection layer is disposed, as required, either on the same surface side of the substrate sheet as the receptor layer is disposed so as to be interposed between the substrate sheet and the receptor layer or on the opposite side of a transparent substrate sheet to the surface provided with the receptor layer. The convexo-concave pattern may comprise an interference fringe, and may be divided into plural areas.Type: GrantFiled: July 28, 1998Date of Patent: December 3, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shinichi Kurokawa, Katsuyuki Oshima