Patents by Inventor Shinji Hikita
Shinji Hikita 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: 11886079Abstract: The wavelength conversion member includes a wavelength conversion layer containing quantum dots, in which the wavelength conversion layer is provided between two substrates, at least one of the two substrates has a barrier layer, the wavelength conversion member has a total thickness of 120 ?m or less, the wavelength conversion member has a rub resistance of 100 g or more, and the wavelength conversion member exhibits a bend resistance of a mandrel diameter of 4 mm or less in a bend resistance test carried out according to a cylindrical mandrel method specified in JIS K 5600-5-1:1999.Type: GrantFiled: December 9, 2022Date of Patent: January 30, 2024Assignee: FUJIFILM CorporationInventors: Tatsuya Oba, Isao Fujiwara, Shinji Hikita
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Publication number: 20230152629Abstract: The wavelength conversion member includes a wavelength conversion layer containing quantum dots, in which the wavelength conversion layer is provided between two substrates, at least one of the two substrates has a barrier layer, the wavelength conversion member has a total thickness of 120 µm or less, the wavelength conversion member has a rub resistance of 100 g or more, and the wavelength conversion member exhibits a bend resistance of a mandrel diameter of 4 mm or less in a bend resistance test carried out according to a cylindrical mandrel method specified in JIS K 5600-5-1:1999.Type: ApplicationFiled: December 9, 2022Publication date: May 18, 2023Applicant: FUJIFILM CorporationInventors: Tatsuya OBA, Isao FUJIWARA, Shinji HIKITA
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Publication number: 20180179643Abstract: Provided are a laminated film, which can prevent quantum dots from deteriorating due to moisture or oxygen, has high durability, can narrow a frame, and has high productivity, and a method for manufacturing a laminated film. The laminated film has a functional layer laminate that has an optically functional layer and a gas barrier layer laminated on at least one main surface of the optically functional layer and an end face sealing layer that is formed by covering at least a portion of an end face of the functional layer laminate, in which the end face sealing layer includes at least two layers, and each of the layers included in the end face sealing layer is formed of a metal.Type: ApplicationFiled: December 13, 2017Publication date: June 28, 2018Applicant: FUJIFILM CorporationInventors: Masayuki KUSUMOTO, Tatsuya OBA, Shinji HIKITA, Kyohisa UCHIUMI
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Patent number: 9827752Abstract: A laminate film manufacturing method is capable of preventing thickness unevenness of a cured layer and preventing wrinkling of the entire laminate film. A laminate film is manufactured by applying a coating solution including an active radiation curable resin to a surface of a first film that is continuously transported in an application part to form a coated film in a lamination part, laminating a second film that is continuously transported on the coated film to sandwich the coated film between the first film and the second film, and in a state in which the coated film is sandwiched between the first film and the second film, winding the first film around a backup roller and irradiating the coated film with infrared rays from an ultraviolet irradiation device while continuously transporting the first film to cure the coated film in a curing part so as to form a cured layer.Type: GrantFiled: July 26, 2016Date of Patent: November 28, 2017Assignee: FUJIFILM CorporationInventors: Kyouhisa Uchiumi, Shinji Hikita
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Publication number: 20160332431Abstract: A laminate film manufacturing method is capable of preventing thickness unevenness of a cured layer and preventing wrinkling of the entire laminate film. A laminate film is manufactured by applying a coating solution including an active radiation curable resin to a surface of a first film that is continuously transported in an application part to form a coated film in a lamination part, laminating a second film that is continuously transported on the coated film to sandwich the coated film between the first film and the second film, and in a state in which the coated film is sandwiched between the first film and the second film, winding the first film around a backup roller and irradiating the coated film with infrared rays from an ultraviolet irradiation device while continuously transporting the first film to cure the coated film in a curing part so as to form a cured layer.Type: ApplicationFiled: July 26, 2016Publication date: November 17, 2016Applicant: FUJIFILM CorporationInventors: Kyouhisa UCHIUMI, Shinji HIKITA
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Patent number: 8075832Abstract: A solution casting apparatus includes a drive roller as a conveying means. The drive roller conveys a polymer film peeled from a belt, the polymer film still containing a solvent. The drive roller has corrugation valleys and corrugation peaks formed on a peripheral surface along a circumferential direction of the drive roller. Each of the corrugation valleys and the corrugation peaks has a substantially semicircular cross section. The corrugation valleys and the corrugation peaks are disposed alternately in an axial direction of the drive roller. A pitch Pv between the corrugation valleys and a pitch Pm between the corrugation peaks are in the range of 0.01 to 2 mm, and a height Hv-m from a lowest point of the corrugation valley to a highest point of the corrugation peak is in the range of 0.01 to 1 mm. A curvature radius Rv of the corrugation valley and a curvature radius Rm of the corrugation peak are in the range of 0.1 to 0.5 mm.Type: GrantFiled: January 2, 2009Date of Patent: December 13, 2011Assignee: FUJIFILM CorporationInventors: Ryuhei Yoshida, Shinji Hikita, Hiroki Sato
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Patent number: 7735702Abstract: A web conveying apparatus is provided with a plurality of web guiding rollers. The web guiding rollers convey a web on which a functional material has just been coated in a coating section. Concave portions and convex portions that have a substantially semicircular cross section are alternately formed on a peripheral surface along a circumferential direction of each roller. A pitch Pv of the concave portions and a pitch Pm of the convex portions are in the range of 0.01 mm or more and 2 mm or less. A height Hv-m from a lowest point of the concave portion to a highest point of the convex portion is in the range of 0.01 mm or more and 1 mm or less. A curvature radius Rv of the concave portion and a curvature radius Rm of the convex portion are in the range of 0.1 mm or more and 0.5 mm or less.Type: GrantFiled: September 27, 2007Date of Patent: June 15, 2010Assignee: FUJIFILM CorporationInventors: Shinji Hikita, Masayuki Kawarada
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Publication number: 20090243144Abstract: A support roller includes a roller body and a rotary shaft, and supports a web under conveyance with a peripheral surface of the roller body. The peripheral surface includes edge contact areas and a merchandise portion contact area. The edge contact areas make contact with edges in a width direction of the web. Each edge contact area has projections and recesses that have an arcuate cross section, and extend in the peripheral direction of the roller body. The projections and the recesses are arranged alternately in an axial direction. The projections are spaced at intervals from 0.01 mm to 2 mm. A height from a bottom of the recess to an apex of the projection is from 0.01 mm to 1 mm. The apex has a curvature radius in a range from 0.1 mm to 0.5 mm.Type: ApplicationFiled: March 24, 2009Publication date: October 1, 2009Applicant: FUJIFILM CORPORATIONInventors: Daisaku Abiru, Ryo Takeda, Shinji Hikita
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Publication number: 20090174110Abstract: A solution casting apparatus includes a drive roller as a conveying means. The drive roller conveys a polymer film peeled from a belt, the polymer film still containing a solvent. The drive roller has corrugation valleys and corrugation peaks formed on a peripheral surface along a circumferential direction of the drive roller. Each of the corrugation valleys and the corrugation peaks has a substantially semicircular cross section. The corrugation valleys and the corrugation peaks are disposed alternately in an axial direction of the drive roller. A pitch Pv between the corrugation valleys and a pitch Pm between the corrugation peaks are in the range of 0.01 to 2 mm, and a height Hv-m from a lowest point of the corrugation valley to a highest point of the corrugation peak is in the range of 0.01 to 1 mm. A curvature radius Rv of the corrugation valley and a curvature radius Rm of the corrugation peak are in the range of 0.1 to 0.5 mm.Type: ApplicationFiled: January 2, 2009Publication date: July 9, 2009Applicant: FUJIFILM CorporationInventors: Ryuhei YOSHIDA, Shinji HIKITA, Hiroki SATO
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Publication number: 20080073402Abstract: A web conveying apparatus is provided with a plurality of web guiding rollers. The web guiding rollers convey a web on which a functional material has just been coated in a coating section. Concave portions and convex portions that have a substantially semicircular cross section are alternately formed on a peripheral surface along a circumferential direction of each roller. A pitch Pv of the concave portions and a pitch Pm of the convex portions are in the range of 0.01 mm or more and 2 mm or less. A height Hv-m from a lowest point of the concave portion to a highest point of the convex portion is in the range of 0.01 mm or more and 1 mm or less. A curvature radius Rv of the concave portion and a curvature radius Rm of the convex portion are in the range of 0.1 mm or more and 0.5 mm or less.Type: ApplicationFiled: September 27, 2007Publication date: March 27, 2008Applicant: FUJIFILM CorporationInventors: Shinji HIKITA, Masayuki Kawarada
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Patent number: 7264193Abstract: A web winder of a turret winding type is provided with a first spindle secured to a first drive shaft. A second spindle is secured to a second drive shaft. Positions of the first and second drive shafts are changeable in the web winder. A changeover device changes over winding of a web wound about the first spindle to winding about the second spindle. A cutting drum is disposed on a first side with respect to a web path of the web, and has a cutter for cutting the web in a width direction thereof. A receiving drum is disposed on a second side with respect to the web path opposite to the first side. A drum support arm supports the cutting and receiving drums in a rotatable manner and in a manner of contacting drum peripheral surfaces of the cutting and receiving drums on each other.Type: GrantFiled: September 16, 2004Date of Patent: September 4, 2007Assignee: Fujifilm Corporation, Ltd.Inventor: Shinji Hikita
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Publication number: 20070044898Abstract: A method for matching and splicing webs that splices, by use of splicing tape, a rear end of a strip-shaped flexible backing that is drawn and conveyed from an old roll and a front end of a strip-shaped flexible backing that is drawn and conveyed from a new roll, in a state in which the front end and the rear end are matched, wherein the method performs matching and splicing by executing: a preparation step of performing matching and splicing preparations by retaining a front end of a strip-shaped flexible backing of the new roll with one of a pair of cutting drums, and supplying splicing tape to a pair of splicing drums, respectively; a cutting step of cutting with the pair of cutting drums a strip-shaped flexible backing of the old roll and a strip-shaped flexible backing of the new roll in an overlapping state after the preparation step; a feeding step of feeding to a splicing position a rear end of the strip-shaped flexible backing of the old roll and a front end of the strip-shaped flexible backing of thType: ApplicationFiled: August 31, 2006Publication date: March 1, 2007Inventors: Shinji Hikita, Koji Tonohara, Minoru Takahashi
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Patent number: 7074458Abstract: A coating device for coating a coating solution on a web has a roller and a weir which partially constructs a solution store space. In the solution store space the coating solution is stored. When the web sequentially moves in a direction, the roller rotates and the solution in the solution store space is supplied on the web. Thereby a part of the solution overflows the weir such that another part of the solution may remain on the web to have a constant width in a widthwise direction of the web. A drying device has plural drying zones in which the web is fed after the coating of the coating solution. One of the drying zones is neighbored to the coating device. A top of the plural drying zones is constructed of a blow regulation member so as to confront to the solution on the web. The blow regulation member has holes through which is exhausted a gas evaporated from the layer of the solution on the web.Type: GrantFiled: June 24, 2004Date of Patent: July 11, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ishizuka, Shinji Hikita, Tomonari Ogawa, Toshio Shibata, Takashi Nawano, Hidetomo Itoh
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Publication number: 20050077415Abstract: A web winder of a turret winding type is provided with a first spindle secured to a first drive shaft. A second spindle is secured to a second drive shaft. Positions of the first and second drive shafts are changeable in the web winder. A changeover device changes over winding of a web wound about the first spindle to winding about the second spindle. A cutting drum is disposed on a first side with respect to a web path of the web, and has a cutter for cutting the web in a width direction thereof. A receiving drum is disposed on a second side with respect to the web path opposite to the first side. A drum support arm supports the cutting and receiving drums in a rotatable manner and in a manner of contacting drum peripheral surfaces of the cutting and receiving drums on each other.Type: ApplicationFiled: September 16, 2004Publication date: April 14, 2005Inventor: Shinji Hikita
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Publication number: 20040234697Abstract: A coating device for coating a coating solution on a web has a roller and a weir which partially constructs a solution store space. In the solution store space the coating solution is stored. When the web sequentially moves in a direction, the roller rotates and the solution in the solution store space is supplied on the web. Thereby a part of the solution overflows the weir such that another part of the solution may remain on the web to have a constant width in a widthwise direction of the web. A drying device has plural drying zones in which the web is fed after the coating of the coating solution. One of the drying zones is neighbored to the coating device. A top of the plural drying zones is constructed of a blow regulation member so as to confront to the solution on the web. The blow regulation member has holes through which is exhausted a gas evaporated from the layer of the solution on the web.Type: ApplicationFiled: June 24, 2004Publication date: November 25, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Seiji Ishizuka, Shinji Hikita, Tomonari Ogawa, Toshio Shibata, Takashi Nawano, Hidetomo Itoh
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Publication number: 20040188874Abstract: In the production of an antiglare and antireflection film conducted by nipping antireflection film between an embossing roller and a backup roller to transfer the shape of convexes and concaves formed on the embossing roller to one surface of the antireflection film, the longitudinal elastic modulus and hardness of the backup roller are made smaller than the longitudinal elastic modulus and hardness of the embossing roller.Type: ApplicationFiled: March 26, 2004Publication date: September 30, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Shinji Hikita, Tadashi Hayashi
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Patent number: 6780470Abstract: A coating device for coating a coating solution on a web has a roller and a weir which partially constructs a solution store space. In the solution store space the coating solution is stored. When the web sequentially moves in a direction, the roller rotates and the solution in the solution store space is supplied on the web. Thereby a part of the solution overflows the weir such that another part of the solution may remain on the web to have a constant width in a widthwise direction of the web. A drying device has plural drying zones in which the web is fed after the coating of the coating solution. One of the drying zones is neighbored to the coating device. A top of the plural drying zones is constructed of a blow regulation member so as to confront to the solution on the web. The blow regulation member has holes through which is exhausted a gas evaporated from the layer of the solution on the web.Type: GrantFiled: July 17, 2002Date of Patent: August 24, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ishizuka, Shinji Hikita, Tomonari Ogawa, Toshio Shibata, Takashi Nawano, Hidetomo Itoh
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Publication number: 20030234460Abstract: An antireflection film having an antireflective layer is embossed with an emboss roller or an emboss plate, to become an antiglare and antireflection film. A surface of each of the emboss roller and the emboss plate has concave-convex which have arithmetic roughness average is in the range of 0.05 &mgr;m to 2.00 &mgr;m and average period of maximum 50 &mgr;m. When the film is embossed, an emboss roller applies to the surface of the film a linear pressure in the range of 500 N/cm to 4000 N/cm, or an emboss plate applies a pressure in the range of 50×105 Pa to 400×105 Pa. The concave-convex of the emboss roller or the emboss plate is formed in a shot blast method in which balls having diameter in the range of 0.1 &mgr;m to 50 &mgr;m are scattered onto the surface of the antireflection film.Type: ApplicationFiled: June 20, 2003Publication date: December 25, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Tadashi Hayashi, Shinji Hikita
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Publication number: 20030051371Abstract: A coating device for coating a coating solution on a web has a roller and a weir which partially constructs a solution store space. In the solution store space the coating solution is stored. When the web sequentially moves in a direction, the roller rotates and the solution in the solution store space is supplied on the web. Thereby a part of the solution overflows the weir such that another part of the solution may remain on the web to have a constant width in a widthwise direction of the web. A drying device has plural drying zones in which the web is fed after the coating of the coating solution. One of the drying zones is neighbored to the coating device. A top of the plural drying zones is constructed of a blow regulation member so as to confront to the solution on the web. The blow regulation member has holes through which is exhausted a gas evaporated from the layer of the solution on the web.Type: ApplicationFiled: July 17, 2002Publication date: March 20, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Seiji Ishizuka, Shinji Hikita, Tomonari Ogawa, Toshio Shibata, Takashi Nawano, Hidetomo Itoh
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Patent number: 6427941Abstract: In a web transporting apparatus that transports a web while floating the web by jetting air from jetting holes formed in a transporting surface to the web, edge rollers that is rotatable and supports edges of the web are provided at both ends of the transporting surface. The web is transported while the edges of the web are supported by the edge rollers, and thus a floating amount of the web can be kept. Also, the supplied air can be prevented from escaping from a space between the transporting surface and the web through the edges of the web, and the web can be stably floated and transported with little air.Type: GrantFiled: October 10, 2000Date of Patent: August 6, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Shinji Hikita