Patents by Inventor Mitsuru Suezawa
Mitsuru Suezawa 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).
-
Patent number: 9199444Abstract: A waterless planographic printing plate precursor has, on a substrate, at least a photosensitive layer or heat sensitive layer and a silicone rubber layer, which is a waterless planographic printing plate precursor, wherein 1) a color pigment and a pigment dispersant are contained in the silicone rubber layer, 2) the a content of color pigment is 0.1 to 20 vol % in the silicone rubber layer, and 3) the pigment dispersant contains an organic complex compound including a metal and an organic compound.Type: GrantFiled: October 21, 2013Date of Patent: December 1, 2015Assignee: Toray Industries, Inc.Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
-
Publication number: 20140045120Abstract: A waterless planographic printing plate precursor has, on a substrate, at least a photosensitive layer or heat sensitive layer and a silicone rubber layer, which is a waterless planographic printing plate precursor, wherein 1) a color pigment and a pigment dispersant are contained in the silicone rubber layer, 2) the a content of color pigment is 0.1 to 20 vol % in the silicone rubber layer, and 3) the pigment dispersant contains an organic complex compound including a metal and an organic compound.Type: ApplicationFiled: October 21, 2013Publication date: February 13, 2014Applicant: Toray Industries, Inc.Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
-
Patent number: 8617793Abstract: A waterless planographic printing plate precursor is capable of plate inspection without a post-dyeing step, capable of being handled in a light room and excellent in coloring matter fixing in silicone rubber layer. The waterless planographic printing plate precursor has at least a photosensitive layer or heat sensitive layer and a silicone rubber layer on a substrate, which is a waterless planographic printing plate precursor characterized in that a color pigment is contained in the above-mentioned silicone rubber layer, and it is possible to obtain a more excellent effect by further incorporating, in the above-mentioned silicone rubber layer, a pigment dispersant containing an organic complex compound comprising of a metal and an organic compound. Furthermore, when aluminum and/or titanium is contained as the above-mentioned metal, a more excellent effect can be obtained.Type: GrantFiled: November 1, 2007Date of Patent: December 31, 2013Assignee: Toray Industries, Inc.Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
-
Publication number: 20100075250Abstract: A waterless planographic printing plate precursor is capable of plate inspection without a post-dyeing step, capable of being handled in a light room and excellent in coloring matter fixing in silicone rubber layer. The waterless planographic printing plate precursor has at least a photosensitive layer or heat sensitive layer and a silicone rubber layer on a substrate, which is a waterless planographic printing plate precursor characterized in that a color pigment is contained in the above-mentioned silicone rubber layer, and it is possible to obtain a more excellent effect by further incorporating, in the above-mentioned silicone rubber layer, a pigment dispersant containing an organic complex compound comprising of a metal and an organic compound. Furthermore, when aluminum and/or titanium is contained as the above-mentioned metal, a more excellent effect can be obtained.Type: ApplicationFiled: November 1, 2007Publication date: March 25, 2010Applicant: Toray Industries, Inc.Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
-
Patent number: 6964841Abstract: The invention is a directly imageable waterless planographic printing plate precursor comprising: at least a heat insulating layer, a heat sensitive layer, and an ink repellent layer that are provided in that order on a substrate, wherein a transmittance of the heat insulating layer for a light having a wavelength within a range of 400 to 650 nm is at most 15% over the entire range of the wavelength. The invention provides a directly imageable waterless planographic printing plate precursor that allows measurement of the dot area ratio on the printing plate with a densitometer or the like.Type: GrantFiled: February 26, 2003Date of Patent: November 15, 2005Assignee: Toray Industries, Inc.Inventors: Akihiko Iihara, Ken Kawamura, Mitsuru Suezawa, Kimikazu Nagase
-
Publication number: 20030175619Abstract: The invention is a directly imageable waterless planographic printing plate precursor comprising: at least a heat insulating layer, a heat sensitive layer, and an ink repellent layer that are provided in that order on a substrate, wherein a transmittance of the heat insulating layer for a light having a wavelength within a range of 400 to 650 nm is at most 15% over the entire range of the wavelength. The invention provides a directly imageable waterless planographic printing plate precursor that allows measurement of the dot area ratio on the printing plate with a densitometer or the like.Type: ApplicationFiled: February 26, 2003Publication date: September 18, 2003Applicant: TORAY Industries, Inc.Inventors: Akihiro Iihara, Ken Kawamura, Mitsuru Suezawa, Kimikazu Nagase
-
Patent number: 6284433Abstract: A directly imageable waterless planographic printing plate, which has at least the heat sensitive layer and an ink repellent layer in this order on a substrate, having a high sensitivity and good image reproducibility and allowing a heat sensitive layer to remain even after development is produced by imagewisely irradiating a precursor of the printing plate with a laser beam, pre-treating the precursor by a pre-treatment liquid containing an amine compound by 0.1 to 30 wt % based on the weight of the entire pre-treatment liquid, and removing the ink repellent layer at the laser beam irradiated area, in this order, such that the heat sensitive layer is at least partially left on the printing plate after completion of the above steps.Type: GrantFiled: March 24, 2000Date of Patent: September 4, 2001Assignee: Toray Industries, Inc.Inventors: Michihiko Ichikawa, Seigo Miyaguchi, Mitsuru Suezawa, Kimikazu Nagase, Shingo Aoki, Kazuki Goto, Gentaro Ohbayashi
-
Patent number: 6074797Abstract: The present invention relates to a precursor of waterless planographic printing plates, in which at least a photosensitive layer and a silicone rubber layer are laminated on a substrate in this order, characterized in that said photosensitive layer contains a quinonediazide group-containing polyurethane resin and furthermore, preferably, contains a light-heat converting material.The present invention can provide a precursor of waterless planographic printing plates, which is improved in both image reproducibility and printing durability, and which can be applied to both the method of obtaining a waterless planographic printing plate by ordinary image exposure and the method of obtaining a waterless planographic printing plate by laser irradiation.Type: GrantFiled: February 23, 1999Date of Patent: June 13, 2000Assignee: Toray Industries, Inc.Inventors: Mitsuru Suezawa, Akihiro Iihara, Norimasa Ikeda
-
Patent number: 5958652Abstract: A treating liquid for making a waterless planographic printing plate with a photosensitive layer and a silicone rubber layer laminated in this order on a substrate, comprising at least one amine compound with two or more amino groups and one or more hydroxyl groups in one molecule.A treating liquid for making a waterless planographic printing plate excellent in plate surface coatability and developability can be obtained.Type: GrantFiled: September 26, 1997Date of Patent: September 28, 1999Assignee: Toray Industries, Inc.Inventors: Mitsuru Suezawa, Atsuko Kawabe, Toshihiko Taniguci
-
Patent number: 5866294Abstract: The present invention is a water-less lithographic printing plate, in which a photosensitive layer and a silicone rubber layer are laminated in this order on a substrate, characterized in that the photosensitive layer contains the reaction product between a compound with at least one each of phenolic hydroxyl groups and non-phenolic hydroxyl groups and a quinonediazide compound, or contains both the reaction product between a compound with at least one of phenolic hydroxyl groups and a quinonediazide compound, and the reaction product between a compound with at least one of non-phenolic hydroxyl groups and a quinonediazide compound.The water-less lithographic raw plate of the present invention is excellent in image reproducibility and printing durability, and so can be favorably and economically advantageously used also in the commercial web offset printing and the newspaper web offset printing where high printing durability is required.Type: GrantFiled: April 28, 1997Date of Patent: February 2, 1999Assignee: Toray Industries, Inc.Inventors: Masahiro Oguni, Kazuki Goto, Mitsuru Suezawa, Shun-ichi Yanagida, Norimasa Ikeda
-
Patent number: 5225477Abstract: The ink composition of waterless plates containing as the vehicle a resin III obtained by a process comprising copolymerizing (component A) a five-membered cyclic compound having a conjugated double bond, such as cyclopentadiene and/or a Diels-Alder adduct thereof, (component B) an .alpha.-olefin, and in addition to this, (component A') an unsaturated aromatic hydrocarbon monomer containing a carbon-carbon double bond and a benzene ring within the molecule to obtain a hydrocarbon resin I, reacting the thus obtained hydrocarbon resin I with (component C) an unsaturated carboxylic acid and/or the anhydride thereof to obtain an acid-modified resin II and then thermally reacting the thus obtained acid-modified resin II with (component D) a phenol resin, or containing a modified resin IV obtained by lengthening the molecular chain of the resin III with (component E) a molecular-chain elongating agent in a hydrocarbon solvent with a boiling point of 200.degree. C.Type: GrantFiled: July 3, 1990Date of Patent: July 6, 1993Assignees: Nippon Oil Co., Ltd., Toray Industries Inc.Inventors: Makoto Sasaki, Yukio Kobayashi, Norimasa Ikeda, Mitsuru Suezawa
-
Patent number: 4568629Abstract: A dry planographic plate has an image area and a non-image area in the shape of an image. The non-image area is constituted by a silicone rubber layer. The surface of the plate is coated with a thin film containing an organic polymer.Type: GrantFiled: November 21, 1983Date of Patent: February 4, 1986Assignee: Toray Industries, IncorporatedInventors: Takao Kinashi, Mitsuru Suezawa, Masaya Asano
-
Patent number: 4551516Abstract: A coating composition comprising (a) a diorganopolysiloxane having 1 to 3 functional groups on each of both ends, (b) a diorganopolysiloxane having no functional group or having 1 to 3 functional groups on one end, and (c) a cross-linking agent having two or more functional groups capable of undergoing condensation or addition reaction with the functional groups is coated together with a solvent onto a printing plate or a printing part. The coating composition is ink-repellent and prevents an area to which ink is not to be applied from staining with ink by being coated onto the area.Type: GrantFiled: May 17, 1983Date of Patent: November 5, 1985Assignee: Toray Industries, Inc.Inventors: Kazuo Kitamura, Mitsuru Suezawa
-
Patent number: 4378423Abstract: Developing a dry planographic printing plate using a propylene oxide derivative.Type: GrantFiled: June 29, 1981Date of Patent: March 29, 1983Assignee: Toray Industries, Inc.Inventors: Mitsuru Suezawa, Masaya Asano