Patents by Inventor Maru Aburano
Maru Aburano 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: 11760081Abstract: A lithographic printing plate precursor has an infrared radiation-sensitive image-recording layer containing an IR absorber, and an ozone-blocking material of 1500 or less molecular weight and has structure (I), (II), or (III): wherein R is a hydrocarbon having 14-30 carbon atoms; m is 1 or 2; n is 1-6; the sum of m and n is >2 and <8; and A is a multivalent organic moiety free of R and OH groups and has a valence m+n; wherein R1 and R2 are alkyl groups of 14-22 carbon atoms, and o is 1-3; R3C(?O)NR4R5?? (III) wherein R3 is an alkenyl with a C?C bond within a carbon-carbon chain of 16-30 carbons, and R4 and R5 are hydrogen or unsubstituted alkyls of 1-4 carbon atoms. Such ozone-blocking materials can be used to protect infrared radiation-sensitive dyes that may be degraded by ozone and thus improve imaging sensitivity.Type: GrantFiled: July 28, 2021Date of Patent: September 19, 2023Assignee: EASTMAN KODAK COMPANYInventors: Yasushi Miyamoto, Masamichi Kamiya, Maru Aburano, Jeremy Marc Yatvin
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Publication number: 20220072844Abstract: A lithographic printing plate precursor has an infrared radiation-sensitive image-recording layer containing an IR absorber, and an ozone-blocking material of 1500 or less molecular weight and has structure (I), (II), or (III): wherein R is a hydrocarbon having 14-30 carbon atoms; m is 1 or 2; n is 1-6; the sum of m and n is >2 and <8; and A is a multivalent organic moiety free of R and OH groups and has a valence m+n; wherein R1 and R2 are alkyl groups of 14-22 carbon atoms, and o is 1-3; R3C(?O)NR4R5?? (III) wherein R3 is an alkenyl with a C?C bond within a carbon-carbon chain of 16-30 carbons, and R4 and R5 are hydrogen or unsubstituted alkyls of 1-4 carbon atoms. Such ozone-blocking materials can be used to protect infrared radiation-sensitive dyes that may be degraded by ozone and thus improve imaging sensitivity.Type: ApplicationFiled: July 28, 2021Publication date: March 10, 2022Inventors: Yasushi Miyamoto, Masamichi Kamiya, Maru Aburano, Jeremy Marc Yatvin
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Patent number: 9250521Abstract: A positive-working lithographic printing plate precursor exhibits satisfactory developability and has long print run length, satisfactory scratch resistance, and exhibits improved ink receptivity. This precursor has an image forming layer comprising a water-insoluble and alkali-soluble or alkali-dispersible resin. The image forming layer comprises at least a lower layer and an upper layer. A resin in at least one of the lower layer and the upper layer is a polyurethane including a recurring unit comprising a substituent having an acidic hydrogen atom and a recurring unit represented by the following formula: wherein Rf is an alkyl or polyether group in which at least 50% of hydrogen atoms have been fluorinated, R1 is a hydrogen atom, or a substituted or non-substituted alkyl group, m is 0 or 1 to 10, n is 1 to 30, and x is 1 to 4.Type: GrantFiled: October 30, 2012Date of Patent: February 2, 2016Assignee: EASTMAN KODAK COMPANYInventors: Masamichi Kamiya, Yasuhiro Asawa, Yasushi Miyamoto, Maru Aburano, Eiji Hayakawa
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Patent number: 9195141Abstract: It is an object of the present invention to provide a plate surface protecting liquid composition which enables an improvement in adhesion of a printing ink onto a lithographic printing plate at the beginning of printing, and to provide a method for treating a lithographic printing plate using the plate surface protecting liquid composition, which can reduce the generation of waste paper immediately after the beginning of printing. Disclosed is a plate surface protecting liquid composition for lithographic printing plate, including a polysiloxane compound having a polyether chain in the side-chain.Type: GrantFiled: December 4, 2012Date of Patent: November 24, 2015Assignee: EASTMAN KODAK COMPANYInventors: Shoichi Hotate, Maru Aburano
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Publication number: 20140370443Abstract: It is an object of the present invention to provide a plate surface protecting liquid composition which enables an improvement in adhesion of a printing ink onto a lithographic printing plate at the beginning of printing, and to provide a method for treating a lithographic printing plate using the plate surface protecting liquid composition, which can reduce the generation of waste paper immediately after the beginning of printing. Disclosed is a plate surface protecting liquid composition for lithographic printing plate, including a polysiloxane compound having a polyether chain in the side-chain.Type: ApplicationFiled: December 4, 2012Publication date: December 18, 2014Inventors: Shoichi Hotate, Maru Aburano
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Patent number: 8835099Abstract: The present invention provides a lithographic printing plate precursor which exhibits satisfactory ink cleanup and restart toning characteristics during printing.Type: GrantFiled: May 31, 2010Date of Patent: September 16, 2014Assignee: Eastman Kodak CompanyInventors: Yasushi Miyamoto, Yasuhiro Asawa, Maru Aburano, Eiji Hayakawa, Satoko Kumazumi
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Publication number: 20140255848Abstract: An object of the present invention is to provide a lithographic printing plate precursor which exhibits satisfactory developability using a developing solution having the pH of 12 or lower and has long print run length and satisfactory scratch resistance, and also exhibits improved ink receptivity.Type: ApplicationFiled: October 30, 2012Publication date: September 11, 2014Inventors: Masamichi Kamiya, Yasuhiro Asawa, Yasushi Miyamoto, Maru Aburano, Eiji Hayakawa
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Publication number: 20140116277Abstract: A CTP positive working lithographic printing original plate (precursor) is capable of being imaged and then developed using a negative developing solution. This positive working lithographic printing original plate has (1) a substrate thereon (2) a lower layer containing a water-insoluble and alkali-soluble resin and a photothermal conversion material, and (3) an uppermost layer containing a water-insoluble and alkali-soluble resin. In addition, the lower layer contains (a) a polymer having a perfluoroalkyl group and/or (b) a polymer having a siloxane group in a total amount of from 3 to 10% by mass.Type: ApplicationFiled: December 2, 2013Publication date: May 1, 2014Inventors: Yasushi Miyamoto, Yasuhiro Asawa, Maru Aburano, Eiji Hayakawa, Shoichi Hotate
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Publication number: 20120070779Abstract: The present invention provides a lithographic printing plate precursor which exhibits satisfactory ink cleanup and restart toning characteristics during printing.Type: ApplicationFiled: May 31, 2010Publication date: March 22, 2012Inventors: Yasushi Miyamoto, Yasuhiro Asawa, Maru Aburano, Eiji Hayakawa, Satoko Kumazumi
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Patent number: 8119326Abstract: To provide an infrared-sensitive or heat-sensitive lithographic printing plate precursor which has high printing durability and wide development latitude, and also has good developing properties capable of preventing the formation of deposits during the development. In an infrared-sensitive or heat-sensitive lithographic printing plate precursor, comprising a substrate, a first image recording layer formed on the substrate, and a second image recording layer formed on the first image recording layer, the first image recording layer contains a resin which is soluble or dispersible in an aqueous alkali solution, and the second image recording layer contains a polyurethane which has a substituent having an acidic hydrogen atom.Type: GrantFiled: June 22, 2006Date of Patent: February 21, 2012Assignee: Eastman Kodak CompanyInventors: Masamichi Kamiya, Yasuhiro Asawa, Yasushi Miyamoto, Maru Aburano, Eiji Hayakawa
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Publication number: 20110011291Abstract: An object of the present invention is to provide a method for plate-making of a lithographic printing original plate having excellent restart toning recovery properties, and particularly an infrared-sensitive positive working lithographic printing original plate. The present invention relates to a method for plate-making of a lithographic printing original plate comprising an intermediate layer containing a polymer having a phosphonic acid group or a phosphoric acid group disposed between a substrate and an image recording layer, the method comprising the steps of image-wise exposing the lithographic printing original plate, developing, and treating using a plate surface protective solution containing a starch having an onium group.Type: ApplicationFiled: February 17, 2009Publication date: January 20, 2011Inventors: Shoichi Hotate, Satoko Kumazumi, Yasushi Miyamoto, Maru Aburano, Eiji Hayakawa
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Publication number: 20100236436Abstract: An object of the present invention is to provide a CTP positive working lithographic printing original plate capable of developing using a negative developing solution. The present invention provides a positive working lithographic printing original plate having (1) a substrate thereon (2) a lower layer containing a water-insoluble and alkali-soluble resin and a photothermal conversion material, and (3) an uppermost layer containing a water-insoluble and alkali-soluble resin, wherein the lower layer contains (a) a polymer having a perfluoroalkyl group and/or (b) a polymer having a siloxane group.Type: ApplicationFiled: August 25, 2008Publication date: September 23, 2010Inventors: Yasushi Miyamoto, Yasuhiro Asawa, Maru Aburano, Eiji Hayakawa, Shoichi Hotate
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Publication number: 20090208869Abstract: To provide an infrared-sensitive or heat-sensitive lithographic printing plate precursor which has high printing durability and wide development latitude, and also has good developing properties capable of preventing the formation of deposits during the development. In an infrared-sensitive or heat-sensitive lithographic printing plate precursor, comprising a substrate, a first image recording layer formed on the substrate, and a second image recording layer formed on the first image recording layer, the first image recording layer contains a resin which is soluble or dispersible in an aqueous alkali solution, and the second image recording layer contains a polyurethane which has a substituent having an acidic hydrogen atom.Type: ApplicationFiled: June 22, 2006Publication date: August 20, 2009Inventors: Masamichi Kamiya, Yasuhiro Asawa, Yasushi Miyamoto, Maru Aburano, Eiji Hayakawa
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Patent number: 6723489Abstract: Lithographic printing form precursors comprising positive working polymeric coatings on substrates may during storage or transportation undergo undesirable changes in their imaging properties. It has been found that acceptable properties can be restored by carrying out a heat treatment which involves a relatively short heating stage followed by accelerated cooling.Type: GrantFiled: January 30, 2002Date of Patent: April 20, 2004Assignee: Kodak Polychrome Graphics LLPInventors: Maru Aburano, Shoichi Hotate, Shinji Shimizu, Yasuhiko Kojima
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Publication number: 20030152847Abstract: Lithographic printing form precursors comprising positive working polymeric coatings on substrates may during storage or transportation undergo undesirable changes in their imaging properties. It has been found that acceptable properties can be restored by carrying out a heat treatment which involves a relatively short heating stage followed by accelerated cooling.Type: ApplicationFiled: January 30, 2002Publication date: August 14, 2003Inventors: Maru Aburano, Shoichi Hotate, Shinji Shimizu, Yasuhiko Kojima
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Publication number: 20030031951Abstract: A photosensitive composition can be directly written on by a solid laser or semiconductor laser emitting infrared rays and is superior in storage stability and baking scum resistance, a photosensitive lithographic printing plate, and a process for producing a lithographic printing plate are provided. The photosensitive composition contains an alkali-soluble resin, an infrared absorber which absorbs light to generate heat, and an antioxidant which prevents the alkali-soluble resin and the infrared absorber from oxidizing. The antioxidant is preferably a phosphite compound and/or a mercaptoimidazole compound. Preferably, the photosensitive composition further contains a cyclic acid anhydride. In a photosensitive lithographic printing plate, a photosensitive layer made of the photosensitive composition described above is formed on a substrate.Type: ApplicationFiled: May 7, 2002Publication date: February 13, 2003Inventor: Maru Aburano
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Patent number: 5731127Abstract: A photosensitive composition which comprises a resin (A) having urea bonds in its side chains and a photosensitive compound (B), wherein the resin (A) contains at least one resin selected from the group consisting of a vinyl polymer resin and a condensation polymer resin, provides a coating layer with excellent resistance to solvents and abrasion. The photosensitive composition is suitable for use in the production of planographic printing plates, integrated circuits (IC) or photomasks. A photosensitive planographic printing plate produced usig the photosensitive composition has superior press-life.Type: GrantFiled: April 9, 1996Date of Patent: March 24, 1998Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Yasuhiro Ishizuka, Maru Aburano, Eiji Hayakawa, Koji Oe