Patents by Inventor Yasuhito Oshima
Yasuhito 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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Patent number: 10252549Abstract: A printed product is produced by applying at least one colored and water-containing ink to image regions on a printing material in a drop-on-demand process, applying a substantially colorless and water-containing liquid a) to non-image regions and/or b) to image regions that have little ink in a drop-on-demand process and drying the printing material. In this case, the printing material has a coating with at least one acid. After applying ink and applying the liquid, a water-containing further liquid is applied both to image regions and to non-image regions of the printing material. The first-mentioned liquid and/or the further liquid contains at least one substance for at least partly neutralizing the acid. The undesired formation of crease waves or curls and glossiness fluctuations between varnished image areas and varnished non-image areas is thus advantageously avoided.Type: GrantFiled: May 25, 2017Date of Patent: April 9, 2019Assignees: Heidelberger Druckmaschinen AG, FUJIFILM CorporationInventors: Peter Hachmann, Bernd Sitzmann, Yasuhito Oshima, Jun Yamanobe
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Publication number: 20170341419Abstract: A printed product is produced by applying at least one colored and water-containing ink to image regions on a printing material in a drop-on-demand process, applying a substantially colorless and water-containing liquid a) to non-image regions and/or b) to image regions that have little ink in a drop-on-demand process and drying the printing material. In this case, the printing material has a coating with at least one acid. After applying ink and applying the liquid, a water-containing further liquid is applied both to image regions and to non-image regions of the printing material. The first-mentioned liquid and/or the further liquid contains at least one substance for at least partly neutralizing the acid. The undesired formation of crease waves or curls and glossiness fluctuations between varnished image areas and varnished non-image areas is thus advantageously avoided.Type: ApplicationFiled: May 25, 2017Publication date: November 30, 2017Inventors: PETER HACHMANN, BERND SITZMANN, YASUHITO OSHIMA, JUN YAMANOBE
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Patent number: 8608305Abstract: An inkjet ink composition is provided that includes (Component A) an N-vinyllactam, (Component B) a compound represented by Formula (B), and (Component C) a di(meth)acrylate ester of a hydrocarbon diol having 6 to 18 carbon atoms wherein R1 denotes a hydrogen atom or a methyl group, and R2 to R12 independently denote a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. There is also provided an inkjet recording method that includes (a) an image formation step of forming an image above a support by discharging the inkjet ink composition by an inkjet method and (b) a curing step of curing the inkjet ink composition by irradiating the obtained image with actinic radiation to thus obtain a printed material having a cured image above the support.Type: GrantFiled: January 13, 2011Date of Patent: December 17, 2013Assignee: FUJIFILM CorporationInventors: Yuuichi Hayata, Yasuhito Oshima
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Patent number: 8562123Abstract: An inkjet ink composition is provided that includes (Component A) an N-vinyllactam, (Component B) a di(meth)acrylate ester of at least one type of diol selected from the group consisting of a straight-chain hydrocarbon diol having 9 to 18 carbon atoms, a branched hydrocarbon diol having 6 to 18 carbon atoms, and a monoalicyclic hydrocarbon diol having 6 to 18 carbon atoms, and (Component C) at least one type of polymerization initiator selected from the group consisting of an ?-amino ketone compound, a thioxanthone compound, a thiochromanone compound, and a bisacylphosphine oxide compound. There is also provided an inkjet recording method that includes (a) an image formation step of forming an image above a support by discharging the inkjet ink composition by an inkjet method and (b) a curing step of curing the ink composition by irradiating the obtained image with actinic radiation to thus obtain a printed material having a cured image above the support.Type: GrantFiled: January 13, 2011Date of Patent: October 22, 2013Assignee: FUJIFILM CorporationInventors: Yuuichi Hayata, Yasuhito Oshima
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Patent number: 8361563Abstract: An ink composition comprising: (A) an isoindoline-based pigment; (B) a pigment dispersing agent; (C) a radically polymerizable compound; and (D) a polymerization initiator; the radically polymerizable compound (C) comprising at least one compound selected from the group consisting of compounds represented by Formula (I) to Formula (III): wherein R1 denotes a hydrogen atom or a methyl group, A1 denotes a single bond or a divalent linking group, R2 denotes a monovalent substituent, m denotes an integer of 0 to 13, and when m is an integer of 2 to 13, the R2s may be identical to or different from each other, R3 denotes a hydrogen atom or a methyl group, A2 denotes a single bond or a divalent linking group, and n denotes an integer of 1 to 5.Type: GrantFiled: September 17, 2010Date of Patent: January 29, 2013Assignee: FUJIFILM CorporationInventors: Kenjiro Araki, Yasuhito Oshima
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Publication number: 20110169902Abstract: An inkjet ink composition is provided that includes (Component A) an N-vinyllactam, (Component B) a di(meth)acrylate ester of at least one type of diol selected from the group consisting of a straight-chain hydrocarbon diol having 9 to 18 carbon atoms, a branched hydrocarbon diol having 6 to 18 carbon atoms, and a monoalicyclic hydrocarbon diol having 6 to 18 carbon atoms, and (Component C) at least one type of polymerization initiator selected from the group consisting of an ?-amino ketone compound, a thioxanthone compound, a thiochromanone compound, and a bisacylphosphine oxide compound. There is also provided an inkjet recording method that includes (a) an image formation step of forming an image above a support by discharging the inkjet ink composition by an inkjet method and (b) a curing step of curing the ink composition by irradiating the obtained image with actinic radiation to thus obtain a printed material having a cured image above the support.Type: ApplicationFiled: January 13, 2011Publication date: July 14, 2011Applicant: FUJIFILM CorporationInventors: Yuuichi HAYATA, Yasuhito Oshima
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Publication number: 20110169903Abstract: An inkjet ink composition is provided that includes (Component A) an N-vinyllactam, (Component B) a compound represented by Formula (B), and (Component C) a di(meth)acrylate ester of a hydrocarbon diol having 6 to 18 carbon atoms wherein R1 denotes a hydrogen atom or a methyl group, and R2 to R12 independently denote a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. There is also provided an inkjet recording method that includes (a) an image formation step of forming an image above a support by discharging the inkjet ink composition by an inkjet method and (b) a curing step of curing the inkjet ink composition by irradiating the obtained image with actinic radiation to thus obtain a printed material having a cured image above the support.Type: ApplicationFiled: January 13, 2011Publication date: July 14, 2011Applicant: FUJIFILM CorporationInventors: Yuuichi HAYATA, Yasuhito Oshima
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Publication number: 20110134411Abstract: (1) A packaged body of lithographic printing plate precursors, wherein an image-recording layer or a protective layer of the outermost surface layer contains an inorganic layered compound. (2) A lithographic printing plate precursor having a protective layer containing an inorganic layered compound, and an image-recording layer containing a binder polymer. (3) A lithographic printing plate precursor having a protective layer containing an inorganic layered compound, and an image-recording layer containing an infrared absorber and an iodonium compound.Type: ApplicationFiled: February 11, 2011Publication date: June 9, 2011Inventors: Tomoyoshi MITSUMOTO, Yasuhito Oshima
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Publication number: 20110071239Abstract: An ink composition comprising: (A) an isoindoline-based pigment; (B) a pigment dispersing agent; (C) a radically polymerizable compound; and (D) a polymerization initiator; the radically polymerizable compound (C) comprising at least one compound selected from the group consisting of compounds represented by Formula (I) to Formula (III): wherein R1 denotes a hydrogen atom or a methyl group, A1 denotes a single bond or a divalent linking group, R2 denotes a monovalent substituent, m denotes an integer of 0 to 13, and when m is an integer of 2 to 13, the R2s may be identical to or different from each other, R3 denotes a hydrogen atom or a methyl group, A2 denotes a single bond or a divalent linking group, and n denotes an integer of 1 to 5.Type: ApplicationFiled: September 17, 2010Publication date: March 24, 2011Applicant: FUJIFILM CORPORATIONInventors: Kenjiro ARAKI, Yasuhito OSHIMA
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Patent number: 7910286Abstract: (1) A packaged body of lithographic printing plate precursors, wherein an image-recording layer or a protective layer of the outermost surface layer contains an inorganic layered compound. (2) A lithographic printing plate precursor having a protective layer containing an inorganic layered compound, and an image-recording layer containing a binder polymer. (3) A lithographic printing plate precursor having a protective layer containing an inorganic layered compound, and an image-recording layer containing an infrared absorber and an iodonium compound.Type: GrantFiled: January 26, 2006Date of Patent: March 22, 2011Assignee: Fujifilm CorporationInventors: Tomoyoshi Mitsumoto, Yasuhito Oshima
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Publication number: 20100239779Abstract: An ink composition is provided that includes (A) a radically polymerizable compound, (B) a radical polymerization initiator; and (C) a colorant, and the radically polymerizable compound (A) includes at least one type of compound represented by Formula (Ia) and/or compound represented by Formula (Ib) and at least one type of compound represented by Formula (II) (in Formula (Ia), Formula (Ib), and Formula (II), R1, R3, and R5 independently denote a hydrogen atom or a methyl group, A1 to A3 independently denote a single bond or a divalent linking group, R2 and R4 independently denote a monovalent substituent, m denotes an integer of 0 to 13, n denotes an integer of 0 to 19, when m is an integer of 2 to 13 the Res may be identical to or different from each other, and when n is an integer of 2 to 19 the R4s may be identical to or different from each other).Type: ApplicationFiled: March 16, 2010Publication date: September 23, 2010Applicant: FUJIFILM CORPORATIONInventor: Yasuhito OSHIMA
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Publication number: 20100080925Abstract: An ink composition is provided that includes (A) a pigment other than titanium oxide, (B) a cationically polymerizable compound, and (C) a photo-acid generator, the pigment (A) having a content of 3.5 to 20 wt %, the cationically polymerizable compound (B) containing only an oxirane compound and/or an oxetane compound, the oxirane compound and/or the oxetane compound containing a low-viscosity compound having a viscosity at 25° C. of no greater than 12 mPa·s, and the low-viscosity compound having a total content of 65 to 100 wt % relative to the total weight of the cationically polymerizable compound (B). There is also provided an inkjet recording method that includes (a1) a step of discharging the ink composition above onto a recording medium and (b1) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation.Type: ApplicationFiled: September 25, 2009Publication date: April 1, 2010Applicant: FUJIFILM CorporationInventors: Kenjiro ARAKI, Yasuhito Oshima
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Publication number: 20100080926Abstract: An ink composition is provided that includes (A) a cationically polymerizable compound, (B) a compound that generates an acid upon exposure to radiation, and (C) a colorant, the cationically polymerizable compound (A) containing a polyfunctional oxetane compound having an —NRCO— bond (R denotes a hydrogen atom or a monovalent organic group). There is also provided an inkjet recording method that includes (a1) a step of discharging the ink composition onto a recording medium and (b1) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation.Type: ApplicationFiled: September 28, 2009Publication date: April 1, 2010Applicant: FUJIFILM CorporationInventor: Yasuhito OSHIMA
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Patent number: 7524605Abstract: An image-recording materials containing (A) a compound having a specific partial structure and at least one group selected from an acid group having a pKa of 11 or less, the derivative of the acid group and a group capable of generating the acid group, a lithographic printing plate precursor having an image-recording layer containing the compound (A), and a lithographic printing method using the lithographic printing plate precursor, are provided.Type: GrantFiled: April 8, 2005Date of Patent: April 28, 2009Assignee: Fujifilm CorporationInventors: Ryuki Kakino, Kazuto Kunita, Hidekazu Oohashi, Yasuhito Oshima
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Patent number: 7442485Abstract: A lithographic printing process comprises the steps of: imagewise exposing to infrared light a presensitized lithographic plate which comprises a hydrophilic support and an image-forming layer containing an infrared absorbing agent, a polymerization initiator and a binder polymer to polymerize the polymerizable compound within the exposed area; removing the image-forming layer within the unexposed area while mounting the lithographic plate on a cylinder of a printing press; and then printing with the lithographic plate while mounting the lithographic plate on the cylinder of the printing press. The polymerization initiator is a salt of an anion with a sulfonium ion. According to the present invention, a specific anion or a specific sulfonium ion is used in the polymerization initiator.Type: GrantFiled: June 2, 2004Date of Patent: October 28, 2008Assignee: FUJIFILM CorporationInventors: Yasuhito Oshima, Toshifumi Inno, Tomoyoshi Mitsumoto, Kazuhiro Fujimaki, Kazuto Shimada, Naonori Makino
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Patent number: 7425406Abstract: A lithographic printing plate precursor comprising a support and an image-recording layer containing at least one compound selected from the group consisting of a spiropyran compound and a spirooxazine compound, and an acid generator, and a lithographic printing method including a process of removing the unexposed area of the image-recording layer on a printing press.Type: GrantFiled: July 25, 2005Date of Patent: September 16, 2008Assignee: Fujifilm CorporationInventors: Yasuhito Oshima, Hidekazu Oohashi, Akihiro Endo
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Patent number: 7361451Abstract: A lithographic printing plate precursor which is capable of being on-machine developed by supplying at least one of an ink and a fountain solution and comprises a hydrophilic support having provided thereon an image-forming layer containing the following components (1) to (3), wherein the image-forming layer further contains a filler: (1) an infrared absorbing agent; (2) a compound capable of generating an acid or a radical; and (3) a compound capable of undergoing addition polymerization with the acid or radical.Type: GrantFiled: July 6, 2004Date of Patent: April 22, 2008Assignee: Fujifilm CorporationInventors: Yasuhito Oshima, Tomoyoshi Mitsumoto
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Patent number: 7288361Abstract: A lithographic printing process which comprises the steps of: imagewise exposing to infrared light a presensitized lithographic plate which comprises a hydrophilic support and a removable image-forming layer containing an infrared absorbing agent having the absorption maximum within an infrared region and a dye precursor having substantially no absorption within a visible region to change the dye precursor to a visible dye having an absorption within a visible region within the exposed area, and to make the image-forming layer irremovable within the exposed area; removing the image-forming layer within the unexposed area of the lithographic plate mounted on a cylinder of a printing press; and then printing an image with the lithographic plate mounted on the cylinder of the printing press. The other processes are also disclosed.Type: GrantFiled: August 20, 2004Date of Patent: October 30, 2007Assignee: Fujifilm CorporationInventors: Ryuki Kakino, Naonori Makino, Sumiaki Yamasaki, Yasuhito Oshima
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Patent number: 7217500Abstract: A color image-forming material capable of drawing an image by infrared laser exposure and excellent in image visibility, storage stability and white light stability, and an on-press development or non-processing (non-development) type lithographic printing plate precursor ensuring high sensitivity and high press life and being excellent in image visibility, on-press developability and the like, are provided, which are a color image-forming material comprising an image recording layer capable of drawing an image by infrared laser exposure, the color image-forming material forming a color image without passing through a development processing step after image recording, wherein the image recording layer comprises (A) an infrared absorbent, (B) a cyclic color-forming compound having a cyclic structure within the molecule and forming a dye by a ring opening, and (C) a dye stabilizer which is a compound interacting with the cyclic color-forming compound to stabilize the ring-opened dye body and cause color formatiType: GrantFiled: August 24, 2005Date of Patent: May 15, 2007Assignee: Fujifilm CorporationInventors: Kazuto Kunita, Yasuhito Oshima, Hidekazu Oohashi
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Publication number: 20070092836Abstract: An on-press development or non-processing (non-development) type lithographic printing plate precursor capable of giving a printout image having a large lightness difference, and a lithographic printing method using this lithographic printing plate precursor are provided, a lithographic printing plate precursor comprising a support and a photosensitive-thermosensitive layer capable of recording an image by infrared laser exposure, the lithographic printing plate precursor being capable of performing a printing by loading on a printing press without passing through a development processing step after recording an image, or by recording an image after loading on a printing press, wherein said photosensitive-thermosensitive layer comprises (1) an infrared absorbent and (2) a discoloring agent or discoloration system capable of generating a color change upon exposure; and the lithographic printing method performing a printing using the above-described lithographic printing plate precursor.Type: ApplicationFiled: November 29, 2006Publication date: April 26, 2007Inventors: Toshifumi Inno, Yasuhito Oshima, Ryuki Kakino