Patents by Inventor Kazuhiro Fujimaki
Kazuhiro Fujimaki 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: 6919411Abstract: A process for producing a polymer compound having a double bond in a side chain, wherein a functional group represented by the following formula (1) is subjected to an elimination reaction to form the polymer compound which includes another functional group having the double bond in the side chain thereof represented by the following formula (2): wherein, in the formulae, A1 represents an oxygen atom, a sulfur atom or —N(R4)—; R1, R2, R3 and R4 each independently represent a hydrogen atom or a monovalent organic group; and X1 and Z1 each represent a group that is removable by the elimination reaction.Type: GrantFiled: March 11, 2003Date of Patent: July 19, 2005Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazuhiro Fujimaki
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Patent number: 6916595Abstract: A heat mode type negative image recording material is provided which comprises (A) a polymer compound that is insoluble in water but is soluble in an alkali aqueous solution and has at least one of groups represented by general formulae (1) to (3) on a side chain; (B) a photothermal conversion agent; and (C) an onium salt compound forming radicals by heat mode exposure with light that is capable of being absorbed by said photothermal conversion agent (B), said heat mode type negative image recording material being capable of recording an image by heat mode exposure. The general formulae are defined in the specification.Type: GrantFiled: August 21, 2001Date of Patent: July 12, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuhiro Fujimaki, Tadahiro Sorori, Keitaro Aoshimā
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Patent number: 6902864Abstract: A photo- or thermo-polymerizable composition including an alkali-soluble polymerizable polymer that contains a structure represented by the following general formula (I) on a side chain.Type: GrantFiled: September 25, 2003Date of Patent: June 7, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuto Kunita, Kazuhiro Fujimaki
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Publication number: 20050106495Abstract: A polyaerizable composition comprising: (A) a compound which causes at least one of decarboxylation and dehydration by heat; (B) a radical initiator; (C) a compound having at least one ethylenically unsaturated bond; and (D) an infrared ray absorber.Type: ApplicationFiled: February 20, 2004Publication date: May 19, 2005Inventor: Kazuhiro Fujimaki
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Publication number: 20050026075Abstract: A polymerizable composition containing: (A) a polyurethane compound soluble or swellable in water or an aqueous alkali solution which is obtained by reacting at least one diol compound having an unsaturated bond in a main chain and having a molecular weight of 500 or more with at least one polyisocyanate compound; (B) a radical initiator; and (C) a photothermal converting agent, and a polymerizable composition containing: (A?) a polyurethane resin which is soluble or swellable in water or an aqueous alkali solution and has an unsaturated carbon-carbon bond in its side chain; and (B) a radical initiator, wherein the polyurethane resin (A?) is obtained by adding an epoxy compound having an unsaturated carbon-carbon bond to a polyurethane resin having carboxyl group.Type: ApplicationFiled: July 29, 2004Publication date: February 3, 2005Inventor: Kazuhiro Fujimaki
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Publication number: 20050023508Abstract: A polymerizable composition comprising (A) a resin selected from the group consisting of a polyamide resin which is soluble or swells in water or aqueous alkali solutions and a polyester resin which is soluble or swells in water or aqueous alkali solutions, (B) an infrared absorber, (C) a radical polymerization initiator, and (D) a radical-polymerizable compound.Type: ApplicationFiled: July 30, 2004Publication date: February 3, 2005Inventor: Kazuhiro Fujimaki
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Publication number: 20050016402Abstract: 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: ApplicationFiled: June 2, 2004Publication date: January 27, 2005Inventors: Yasuhito Oshima, Toshifumi Inno, Tomoyoshi Mitsumoto, Kazuhiro Fujimaki, Kazuto Shimada, Naonori Makino
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Patent number: 6844137Abstract: A heat mode corresponding negative-type image recording material by which ablation in laser scanning when recording is suppressed, the intensity of the formed image portion can be high and a planographic plate excellent in plate life can be formed is provided. It is characterized in that it contains (A) polyurethane resin insoluble in water and soluble in an aqueous alkaline solution or a polymeric compound which has on the side chain thereof a group represented by the general formula (39) or the general formula (40) as a polymeric compound insoluble in water and soluble in an aqueous alkaline solution, (B) a radical-polymerizable compound, (C) a light-to-heat converting agent and (D) a compound generating a radical by heat mode exposure of a light of wavelength which can be absorbed by (C) a light-to-heat converting agent and image recording can be carried out by the heat mode exposure.Type: GrantFiled: March 1, 2001Date of Patent: January 18, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuhiro Fujimaki, Tadahiro Sorori
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Patent number: 6838222Abstract: A photopolymerizable composition that is cured with visible light or an infrared laser and is used as a recording layer in a negative planographic printing plate precursor. The photopolymerizable composition is cured by exposure and includes (A) a polymerizable compound that is solid at 25° C. and has at least one radical-polymerizable ethylenically unsaturated double bond in a molecule, (B) a radical polymerization initiator, (C) a binder polymer and, as required, (D) a compound generating heat by infrared exposure.Type: GrantFiled: February 14, 2002Date of Patent: January 4, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Keitaro Aoshima, Kazuhiro Fujimaki
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Publication number: 20040234893Abstract: The present invention provides a resin composition that includes (A) a polymer compound that has, on a side chain of a main chain polymer, through a linkage group containing a hydrogen-bonding group and a ring structure, a terminal ethylenic unsaturated bond, and is soluble or swelling in water or an alkali aqueous solution, and (B) a compound that generates radicals when exposed to light or heat. The invention further provides a thermo/photosensitive composition that includes (A′) a polymer compound that has a non-acidic hydrogen-bonding group on a side chain and is soluble or swelling in water or an alkali aqueous solution, and (B′) a compound that generates radicals when exposed to light or heat.Type: ApplicationFiled: August 12, 2003Publication date: November 25, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Kazuhiro Fujimaki
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Publication number: 20040131972Abstract: The present invention provides a resin composition that includes (A) a polymer compound that has, on a side chain of a main chain polymer, through a linkage group containing a hydrogen-bonding group and a ring structure, a terminal ethylenic unsaturated bond, and is soluble or swelling in water or an alkali aqueous solution, and (B) a compound that generates radicals when exposed to light or heat. The invention further provides a thermo/photosensitive composition that includes (A′) a polymer compound that has a non-acidic hydrogen-bonding group on a side chain and is soluble or swelling in water or an alkali aqueous solution, and (B′) a compound that generates radicals when exposed to light or heat.Type: ApplicationFiled: January 12, 2004Publication date: July 8, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Kazuhiro Fujimaki
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Patent number: 6727044Abstract: A method for producing a lithographic printing plate is disclosed, comprising performing the plate-making by scan exposing a lithographic printing original plate comprising a hydrophilic support having thereon a photosensitive layer containing i) at least one polyurethane resin binder, ii) at least one compound having an addition polymerizable ethylenically unsaturated bond, and iii) at least one photopolymerization initiation system. Also disclosed are a photosensitive composition for use in the photosensitive layer of the lithographic printing original plate.Type: GrantFiled: April 9, 1999Date of Patent: April 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuhiro Fujimaki, Yasuo Okamoto, Tatsuji Higashi, Tadahiro Sorori
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Publication number: 20040072101Abstract: The present invention provides a planographic printing plate precursor including on a support a photosensitive layer that contains a polymerizable composition containing a specific binder polymer having a repeating unit of formula (I), an infrared absorbent, a polymerization initiator and a polymerizable compound, 1Type: ApplicationFiled: September 30, 2003Publication date: April 15, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Atsushi Sugasaki, Kazuto Kunita, Kazuhiro Fujimaki
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Patent number: 6720125Abstract: The present invention provides an image recording material onto which images can be recorded with an infrared ray, the material comprising an infrared absorbent (A), a radical-generating agent (B) and a radically polymerizable compound (C), wherein the infrared absorbent is a cyanine dye in which at least one substituent on a nitrogen atom in a heterocyclic ring at each end forms a cyclic ring which includes a methine chain.Type: GrantFiled: June 24, 2002Date of Patent: April 13, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Ippei Nakamura, Kazuhiro Fujimaki
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Publication number: 20040068026Abstract: A photo- or thermo-polymerizable composition including an alkali-soluble polymerizable polymer that contains a structure represented by the following general formula (I) on a side chain. In general formula (I), X represents a polymerizable group; A represents an alkali-soluble group; Q represents a hydrocarbon linking group or a hetero ring; Z1 and Z2 each independently represent a single bond or a hydrocarbon linking group; and P1 to P5 each independently represent a single bond, or a linking group constituted by a hydrogen atom, a nitrogen atom, an oxygen atom, a sulfur atom, and a carbonyl group (>C═O).Type: ApplicationFiled: September 25, 2003Publication date: April 8, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kazuto Kunita, Kazuhiro Fujimaki
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Patent number: 6702437Abstract: A negative image recording material on which an image is formable by exposure, comprising (A) a specific polymer compound that has at least one carbon—carbon double bond in a side chain thereof and a glass transition temperature of 80° C. or more, and is soluble in an aqueous alkaline solution, (B) a light-heat converting agent, and (C) a compound that generates radicals by exposure using light of a wavelength absorbable by the light-heat converting agent. The negative image recording material may also preferably includes (D) a radical-polymerizable compound. Preferably, the (A) specific polymer compound contains at least 1.5 meq/g of the carbon—carbon double bond in the side chain thereof.Type: GrantFiled: August 20, 2002Date of Patent: March 9, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuhiro Fujimaki, Tadahiro Sorori
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Patent number: 6653050Abstract: A negative image-recording material for heat-mode exposure, which is able to form images by heat-mode exposure, comprises (A) a polyurethane resin having at least one or more side-chain branches of the following general formulae (1) to (3) which polyurethane resin is soluble in an alkaline aqueous solution, (B) a photo-thermal converting agent, and (C) a compound capable of generating a radical through heat-mode exposure to light of a wavelength which can be absorbed by the photo-thermal converting agent. In formulae (1) to (3), R1 to R11 each independently represents a monovalent organic group; X and Y each independently represents an oxygen atom, a sulfur atom, or —N(R12)—; Z represents an oxygen atom, a sulfur atom, —N(R13)—, or an optionally-substituted phenylene group; R12 represents a hydrogen atom or a monovalent organic group; and R13 represents a hydrogen atom or a monovalent organic group.Type: GrantFiled: February 25, 2002Date of Patent: November 25, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuhiro Fujimaki, Tadahiro Sorori
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Publication number: 20030215745Abstract: A process for producing a polymer compound having a double bond in a side chain, wherein a functional group represented by the following formula (1) is subjected to an elimination reaction to form the polymer compound which includes another functional group having the double bond in the side chain thereof represented by the following formula (2): 1Type: ApplicationFiled: March 11, 2003Publication date: November 20, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Kazuhiro Fujimaki
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Publication number: 20030146965Abstract: A negative image recording material on which an image is formable by exposure, comprising (A) a specific polymer compound that has at least one carbon-carbon double bond in a side chain thereof and a glass transition temperature of 80° C. or more, and is soluble in an aqueous alkaline solution, (B) a light-heat converting agent, and (C) a compound that generates radicals by exposure using light of a wavelength absorbable by the light-heat converting agent. The negative image recording material may also preferably includes (D) a radical-polymerizable compound. Preferably, the (A) specific polymer compound contains at least 1.5 meq/g of the carbon-carbon double bond in the side chain thereof.Type: ApplicationFiled: August 20, 2002Publication date: August 7, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kazuhiro Fujimaki, Tadahiro Sorori
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Publication number: 20030124455Abstract: The present invention provides an image recording material onto which images can be recorded with an infrared ray, the material comprising an infrared absorbent (A), a radical-generating agent (B) and a radically polymerizable compound (C), wherein the infrared absorbent is a cyanine dye in which at least one substituent on a nitrogen atom in a heterocyclic ring at each end forms a cyclic ring which includes a methine chain.Type: ApplicationFiled: June 24, 2002Publication date: July 3, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Ippei Nakamura, Kazuhiro Fujimaki