Patents by Inventor Yasuhito Naruse
Yasuhito Naruse 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: 7862864Abstract: The present invention provides a bar coating method comprising the step of: weighing and applying a coating liquid by the bar with bringing the bar into contact with a continuously running web and supplying the coating liquid to an feed side of the web with respect to the bar to form a coating liquid puddle, wherein a plurality of coating liquids are supplied to the feed side of the web with respect to the bar via a plurality of slits formed in a multistage form in an feed direction of the web in order to apply the coating liquid having a high viscosity or low wettability without problems.Type: GrantFiled: April 6, 2007Date of Patent: January 4, 2011Assignee: FUJIFILM CorporationInventor: Yasuhito Naruse
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Publication number: 20090246395Abstract: The present invention provides a coating method and a coating device that can both prevent the occurrence of streaks and nonuniform application. A coating device comprises an approximately cylindrical bar arranged to come into contact with a traveling web, and a feed device that feeds coating solution to the entry side of the web relative to the bar. Spiral grooves inclined at an angle of 20 degrees to 70 degrees (both inclusive) with respect to a plane orthogonal to the central axis of the bar, and smooth portions with which the web comes into contact at a percentage of 20% or more are formed on the surface of the bar.Type: ApplicationFiled: March 24, 2009Publication date: October 1, 2009Applicant: FUJIFILM CorporationInventors: Yasuhito NARUSE, Atsushi Ooshima, Nobuyuki Sone
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Publication number: 20090151626Abstract: A coating apparatus is provided which does not form lines having a constant pitch in applying a coating solution to a web (16) or a sheet medium by using a coating rod (12A, 12B, 12C) or a coating roller (12) even at a high speed. The present invention relates to a coating apparatus for applying a coating solution to a continuously running support medium via a coating rod (12C). A coating rod (12C) is a cylindrical body having an outer surface in which convex sections having a width P1 and concave sections having a width P2 are alternately formed in an axial direction of the surface, so that a series of convex and concave sections having a constant pitch P=P1+P2 are formed. Each of the convex sections includes a flat part having a maximum height roughness (Rz) of 3 ?m or less, and the flat part has a width P3 of 0.55 P or more.Type: ApplicationFiled: March 7, 2007Publication date: June 18, 2009Applicant: FUJIFILM CORPORATIONInventors: Yasuhito Naruse, Satoru Matsumoto, Atsushi Ooshima, Nobuyuki Sone
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Publication number: 20090133618Abstract: A coating apparatus is provided which does not form lines having a constant pitch in applying a coating solution to a web or a sheet medium by using a coating rod or a coating roller even at a high speed. The present invention relates to a coating apparatus for applying a coating solution to a continuously running support medium via a coating rod. A coating rod (12C) is a cylindrical body having an outer surface in which convex sections having a width P1 and concave sections having a width P2 are alternately formed in an axial direction of the surface, so that a series of convex and concave sections having a constant pitch P=P1+P2 are formed. Each of the convex sections has a cross section of an angled profile, and has a flat part having a width P3 of 0.55 P or more which is formed between a right end part (R) and a left end part (L) located on opposite ends of the angled profile downward from the top (T) of the angled profile by 3 ?m.Type: ApplicationFiled: February 20, 2007Publication date: May 28, 2009Applicant: FUJIFILM CorporationInventor: Yasuhito NARUSE
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Patent number: 7537805Abstract: In the present invention, a coating liquid satisfies the liquid physical property conditions: (A) in the drying process, after the solid content concentration in the coating liquid is increased to 15% by mass or more by drying the coating film, or after the start of drying when the solid content concentration in the coating liquid is 15% by mass or more at the time of coating; (B) the shear viscosity of the coating liquid becomes 5 mPas or more for the shear rate of 103 sec?1 or less; (C) the value obtained through dividing by the average viscosity the first differential coefficient, the increase coefficient of the increase rate of the shear viscosity relative to the increase rate of the solid content concentration is 0.15 or more; and (D) the second differential coefficient, an additional increase coefficient of the increase coefficient relative to the solid content concentration is positive.Type: GrantFiled: March 21, 2006Date of Patent: May 26, 2009Assignee: FUJIFILM CorporationInventors: Yasuhito Naruse, Kenji Hayashi, Manabu Hashigaya
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Patent number: 7470327Abstract: A peripheral surface of a coating rod has an area where grooves (convex portions) are formed. This area is ground by a grinding apparatus by which a maximum height Ry of the rod surface is adjusted to 15 ?m or less. Further, a ratio of D/W is adjusted to 0.01 or more, wherein D is a total distance of the convex portions of the rod actually abutting on a web in an axial direction of the rod, and W is a coating width of the web. Furthermore, straightness of the rod is adjusted to 30 ?m or less per 1 m, and roundness of the rod is adjusted to 10 ?m or less. Micro-projections are removed by grinding so that scratches of a coating surface are prevented from occurring. Coating unevenness is prevented by improving the straightness and the roundness.Type: GrantFiled: September 30, 2004Date of Patent: December 30, 2008Assignee: Fujifilm CorporationInventors: Atsushi Ooshima, Satoru Matsumoto, Yasuhito Naruse
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Publication number: 20080276861Abstract: A peripheral surface of a coating rod has an area where grooves (convex portions) are formed. This area is ground by a grinding apparatus by which a maximum height Ry of the rod surface is adjusted to 15 ?m or less. Further, a ratio of D/W is adjusted to 0.01 or more, wherein D is a total distance of the convex portions of the rod actually abutting on a web in an axial direction of the rod, and W is a coating width of the web. Furthermore, straightness of the rod is adjusted to 30 ?m or less per 1 m, and roundness of the rod is adjusted to 10 ?m or less. Micro-projections are removed by grinding so that scratches of a coating surface are prevented from occurring. Coating unevenness is prevented by improving the straightness and the roundness.Type: ApplicationFiled: June 3, 2008Publication date: November 13, 2008Inventors: Atsushi Ooshima, Satoru Matsumoto, Yasuhito Naruse
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Publication number: 20080000421Abstract: The present invention provides a method for applying a coating solution with a bar, comprising the steps of: contacting a rotating coating bar with a lower surface of a continuously running web; discharging a coating solution toward the lower surface of the web from a coating solution discharging section positioned upstream of the coating bar in a web running direction to form a coating solution reservoir upstream of the coating bar; and applying the coating solution to the web via the coating solution reservoir, wherein the method for applying a coating solution with a bar includes a step of regulating a pressure of the coating solution reservoir depending on a running speed of the web.Type: ApplicationFiled: June 27, 2007Publication date: January 3, 2008Applicant: FUJIFILM CorporationInventors: Atsushi Ooshima, Satoru Matsumoto, Nobuyuki Sone, Yasuhito Naruse
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Publication number: 20080000418Abstract: According to the coating device and method of the invention, coating is performed while the coating liquid is sprayed from the coating liquid supply passage toward the lower surface of the web in a form of a curtain to form a fluid wall of the coating liquid between an exit of the coating liquid supply passage and the lower surface of the web, so that entrained air running with the web can be blocked by the fluid wall. The fluid wall can block entrained air, and therefore, allow stable coating without any defect such as a film cut in a coating film even when the web is run at speed high enough to form a film of entrained air on a web surface and coated.Type: ApplicationFiled: November 9, 2006Publication date: January 3, 2008Inventors: Atsushi Ooshima, Satoru Matsumoto, Yasuhito Naruse, Nobuyuki Sone
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Publication number: 20070237892Abstract: The present invention provides a bar coating method comprising the step of: weighing and applying a coating liquid by the bar with bringing the bar into contact with a continuously running web and supplying the coating liquid to an feed side of the web with respect to the bar to form a coating liquid puddle, wherein a plurality of coating liquids are supplied to the feed side of the web with respect to the bar via a plurality of slits formed in a multistage form in an feed direction of the web in order to apply the coating liquid having a high viscosity or low wettability without problems.Type: ApplicationFiled: April 6, 2007Publication date: October 11, 2007Applicant: FUJIFILM CorporationInventor: Yasuhito Naruse
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Patent number: 7267722Abstract: A coating apparatus for a traveling web comprising two coating heads and a traveling path changing roller is disclosed. A bar coater is arranged close to a pass roller. The bar coater is fixed at such a position as to contact the web when the pass roller is moved down. An extrusion coater is arranged below a backup roller in such a manner as to move up and down. If the pass roller moves up and bends up the traveling path of the web, the web separates from the bar coater. Then, if the extrusion coater moves up, the web is coated with the coating solution by the extrusion coater. If the pass roller and the extrusion coater move down, the web is coated with the coating solution by the bar coater.Type: GrantFiled: November 5, 2001Date of Patent: September 11, 2007Assignee: Fujifilm CorporationInventors: Yasuhito Naruse, Atsushi Kakumoto
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Publication number: 20060216423Abstract: In the present invention, a coating liquid satisfies the liquid physical property conditions: (A) in the drying process, after the solid content concentration in the coating liquid is increased to 15% by mass or more by drying the coating film, or after the start of drying when the solid content concentration in the coating liquid is 15% by mass or more at the time of coating; (B) the shear viscosity of the coating liquid becomes 5 mPas or more for the shear rate of 103 sec?1 or less; (C) the value obtained through dividing by the average viscosity the first differential coefficient, the increase coefficient of the increase rate of the shear viscosity relative to the increase rate of the solid content concentration is 0.15 or more; and (D) the second differential coefficient, an additional increase coefficient of the increase coefficient relative to the solid content concentration is positive.Type: ApplicationFiled: March 21, 2006Publication date: September 28, 2006Inventors: Yasuhito Naruse, Kenji Hayashi, Manabu Hashigaya
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Publication number: 20050109272Abstract: A peripheral surface of a coating rod has an area where grooves (convex portions) are formed. This area is ground by a grinding apparatus by which a maximum height Ry of the rod surface is adjusted to 15 ?m or less. Further, a ratio of D/W is adjusted to 0.01 or more, wherein D is a total distance of the convex portions of the rod actually abutting on a web in an axial direction of the rod, and W is a coating width of the web. Furthermore, straightness of the rod is adjusted to 30 ?m or less per 1 m, and roundness of the rod is adjusted to 10 ?m or less. Micro-projections are removed by grinding so that scratches of a coating surface are prevented from occurring. Coating unevenness is prevented by improving the straightness and the roundness.Type: ApplicationFiled: September 30, 2004Publication date: May 26, 2005Inventors: Atsushi Ooshima, Satoru Matsumoto, Yasuhito Naruse
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Patent number: 6534234Abstract: A package of photosensitive planographic printing plates which comprises a stack of the photosensitive planographic printing plates between each of which a protection paper is interposed, wherein the coefficient of static friction between the surface of the photosensitive layer of the photosensitive planographic printing plate and the surface of the protection paper is 0.3 or more. In the package, slippage between the photosensitive planographic printing plate and the protection paper and abrasion of the photosensitive layer rarely occur through transport.Type: GrantFiled: October 5, 1998Date of Patent: March 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhito Naruse, Takayuki Usui
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Patent number: 6444270Abstract: In a coating method using a coating rod, the coating rod is rotated in the reverse direction with respect to the running direction of the web, and the absolute value of V1/V2 is set between 0.0001 and 0.06, where V1 (cm/sec) is a rotating speed of the rod and V2 (cm/sec) is a running speed of the web.Type: GrantFiled: July 21, 2000Date of Patent: September 3, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhito Naruse
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Patent number: 6391621Abstract: To provide a process for treating gas for decomposing organic solvent and/or other organic gas contained in exhaust gas effectively and simply at low costs to remove the decomposition product of organic gas by applying other process. The gas can be treated very effectively by decomposing or removing a target gas component dissolved in liquid capable of treating the gas, preferably, by applying microbial treatment, after bringing the gas rising into contact with the liquid falling in a gas treatment tower wherein part of the gas (branched gas ) is admixed with the liquid before feeding the liquid into the tower.Type: GrantFiled: March 3, 2000Date of Patent: May 21, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhito Naruse
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Patent number: 6364952Abstract: A coating apparatus for a traveling web comprising two coating heads and a traveling path changing roller is disclosed. A bar coater is arranged close to a pass roller. The bar coater is fixed at such a position as to contact the web when the pass roller is moved down. An extrusion coater is arranged below a backup roller in such a manner as to move up and down. If the pass roller moves up and bends up the traveling path of the web, the web separates from the bar coater. Then, if the extrusion coater moves up, the web is coated with the coating solution by the extrusion coater. If the pass roller and the extrusion coater move down, the web is coated with the coating solution by the bar coater.Type: GrantFiled: March 15, 2000Date of Patent: April 2, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhito Naruse, Atsushi Kakumoto
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Publication number: 20020026895Abstract: A coating apparatus for a traveling web comprising two coating heads and a traveling path changing roller is disclosed. A bar coater is arranged close to a pass roller. The bar coater is fixed at such a position as to contact the web when the pass roller is moved down. An extrusion coater is arranged below a backup roller in such a manner as to move up and down. If the pass roller moves up and bends up the traveling path of the web, the web separates from the bar coater. Then, if the extrusion coater moves up, the web is coated with the coating solution by the extrusion coater. If the pass roller and the extrusion coater move down, the web is coated with the coating solution by the bar coater.Type: ApplicationFiled: November 5, 2001Publication date: March 7, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yasuhito Naruse, Atsushi Kakumoto
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Patent number: 6120853Abstract: A slide bead coating method and apparatus which is able to form a stable bead over the width of coating solutions and regularly coat the coating solutions on a web to an edge region and which is able to change the width of the coating solutions without stopping the coating operation even if the width of the web changes.A discharged liquid from a nozzle is applied on both side edges of the coating solutions flowing down a slide surface. Thereby, the stable bead can be formed at the side edges of the coating solutions, so that the coating solutions can be coated on the web to the edge region. Edge bead is formed at both side edges of the coating solutions through the nozzle, so that the width of the coating solutions can be adjusted.Type: GrantFiled: May 24, 1999Date of Patent: September 19, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhito Naruse, Kiyoshi Kamitani, Satoru Matsumoto
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Patent number: 6110642Abstract: In a photosensitive lithographic plate including a photosensitive layer coated on the surface of a substrate and a mat layer formed on the photosensitive layer, plural resinous protrusions are provided on the back surface of the substrate in the form of a layer. Deterioration of vacuum adhesion due to the mat collapsed in a production process of a photosensitive lithographic plate including a step of winding is prevented, consequently, a photosensitive lithographic plate with uniform quality is obtained regardless of its wound position.Type: GrantFiled: June 3, 1998Date of Patent: August 29, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhito Naruse, Kenji Shinoda