Patents by Inventor Katsumi Maejima
Katsumi Maejima 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: 8110128Abstract: Disclosed is an anti-glare anti-reflection film having a low haze and reduced in unevenness and dazzle. The film contains a thermoplastic resin film and at least a hard coat layer and an anti-reflection layer provided on a first surface of the thermoplastic resin film. In the film, a first convexoconcave structure that can give an anti-glare property is provided on the first surface of the thermoplastic resin film or the surface of a layer provided on the first surface of the thermoplastic resin film, and a second convexoconcave structure that can give an anti-glare property is provided on a second surface which is the other surface of the thermoplastic resin film or the surface of a layer provided on the second surface of the thermoplastic resin film. The anti-glare anti-reflection film has an average film thickness of 20 to 70 ?m.Type: GrantFiled: September 13, 2006Date of Patent: February 7, 2012Assignee: Konica Minolta Opto, Inc.Inventors: Masayuki Kurematsu, Toshiaki Shibue, Sota Kawakami, Katsumi Maejima
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Publication number: 20100304020Abstract: An antireflection film comprising a transparent substrate film having thereon a hard coat, a high refractive index layer and a low refractive index layer, wherein: (i) the high refractive index layer is formed by applying a coating solution containing the following (a) to (c); (ii) the low refractive index layer is formed by applying a coating solution containing the following (d) and (e); (iii) the antireflection film is heat treated, wherein (a) metal oxide particles having an average primary particle diameter of 10 to 200 nm; (b) a metal compound; (c) an ionizing radiation curable resin; (d) an organosilicon compound having a prescribed structure, a hydrolyzed compound of the organosilicon compound, a decomposed compound of the organosilicon compound or a polycondensed compound of the organosilicon compound; and (e) hollow silica particles each having an outer shell, and a void or a porous portion in the inside.Type: ApplicationFiled: March 17, 2010Publication date: December 2, 2010Applicant: KONICA MINOLTA OPTO, INC.Inventors: Yoshikazu Ojima, Katsumi Maejima, Toshiyuki Ikeda
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Publication number: 20060181774Abstract: An antireflection film comprising a transparent substrate film having thereon a hard coat, a high refractive index layer and a low refractive index layer, wherein: (i) the high refractive index layer is formed by applying a coating solution containing the following (a) to (c); (ii) the low refractive index layer is formed by applying a coating solution containing the following (d) and (e); (iii) the antireflection film is heat treated, wherein (a) metal oxide particles having an average primary particle diameter of 10 to 200 nm; (b) a metal compound; (c) an ionizing radiation curable resin; (d) an organosilicon compound having a prescribed structure, a hydrolyzed compound of the organosilicon compound, a decomposed compound of the organosilicon compound or a polycondensed compound of the organosilicon compound; and (e) hollow silica particles each having an outer shell, and a void or a porous portion in the inside.Type: ApplicationFiled: February 13, 2006Publication date: August 17, 2006Applicant: KONICA MINOLTA OPTO, INC.Inventors: Yoshikazu Ojima, Katsumi Maejima, Toshiyuki Ikeda
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Patent number: 6749981Abstract: A laser thermal transfer recording method is disclosed. The method employs an ink sheet having a light-heat conversion layer an a laser thermal transfer image receiving sheet having an image receiving layer in which Vicat softening point of the resin composing the thermoplastic layer of the image receiving layer is less than 80° C., and one of the image receiving layer and the ink layer contains a matting agent having a particle diameter larger than the thickness of the layer containing matting agent, the projection height of the matting agent is less than 3.5 &mgr;m and the frequency of the projections is from 400/mm2 to 4,000/mm2, and the peeling angle of the ink sheet and the image receiving sheet is controlled at an angle less than 30°.Type: GrantFiled: March 22, 2002Date of Patent: June 15, 2004Assignee: Konica CorporationInventors: Atsushi Nakajima, Katsumi Maejima
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Patent number: 6667144Abstract: A laser-induced thermal transfer ink sheet for forming a transfer image, comprising a support having thereon a light-to-heat converting layer containing a light-to-heat converting compound, an interlayer containing a resin, and an ink layer in that order, wherein the light-to-heat converting compound and the resin satisfy one of the following requirements (a) and (b); (a) the light-to-heat converting compound is soluble in an organic solvent and the resin is soluble in water; and (b) the light-to-heat converting compound is soluble in water and the resin is soluble in an organic solvent.Type: GrantFiled: February 20, 2002Date of Patent: December 23, 2003Assignee: Konica CorporationInventors: Katsumi Maejima, Tomohisa Ohta, Taro Konuma, Tatsuichi Maehashi
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Publication number: 20020192588Abstract: A laser-induced thermal transfer ink sheet for forming a transfer image, comprising a support having thereon a light-to-heat converting layer containing a light-to-heat converting compound, an interlayer containing a resin, and an ink layer in that order, wherein the light-to-heat converting compound and the resin satisfy one of the following requirements (a) and (b);Type: ApplicationFiled: February 20, 2002Publication date: December 19, 2002Inventors: Katsumi Maejima, Tomohisa Ohta, Taro Konuma, Tatsuichi Maehashi
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Publication number: 20020146637Abstract: A laser thermal transfer recording method is disclosed. The method employs an ink sheet having a light-heat conversion layer an a laser thermal transfer image receiving sheet having an image receiving layer in which Vicat softening point of the resin composing the thermoplastic layer of the image receiving layer is less than 80° C., and one of the image receiving layer and the ink layer contains a matting agent having a particle diameter larger than the thickness of the layer containing matting agent, the projection height of the matting agent is less than 3.5 &mgr;m and the frequency of the projections is from 400/mm2 to 4,000/mm2, and the peeling angle of the ink sheet and the image receiving sheet is controlled at an angle less than 30°.Type: ApplicationFiled: March 22, 2002Publication date: October 10, 2002Applicant: KONICA CORPORATIONInventors: Atsushi Nakajima, Katsumi Maejima
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Patent number: 6383621Abstract: A thermal transfer image forming material is disclosed, which comprises a intermediate layer, and an image forming layer onto a support. The thermal transfer image forming material comprises a matting material having a number average grain diameter greater than the average thickness of the intermediate cushion layer.Type: GrantFiled: November 24, 1999Date of Patent: May 7, 2002Assignee: Konica CorporationInventors: Shizuka Tojima, Katsumi Maejima
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Patent number: 6027850Abstract: A thermal transfer image forming method using a laser is disclosed.Type: GrantFiled: December 22, 1998Date of Patent: February 22, 2000Assignee: Konica CorporationInventors: Sota Kawakami, Katsumi Maejima
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Patent number: 5858604Abstract: Object: A method for preparing a lithographic printing plate directly from digital image signals with the use of a presensitized lithographic printing plate comprising a support having thereon a photosensitive layer and a light-shielding layer which can be removed imagewise with laser light is provided, wherein the light-shielding layer, which can be industrially produced readily at a moderate price can be removed sufficiently during a process of development without the need of removing a masking layer at an unexposed portion and adverse effect on a photosensitive layer.Type: GrantFiled: January 16, 1996Date of Patent: January 12, 1999Assignee: Konica CorporationInventors: Katsuyuki Takeda, Sota Kawakami, Katsumi Maejima, Koichi Nakatani, Shinji Matsumoto
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Patent number: 5821028Abstract: A thermal transfer image receiving material is disclosed which comprises a support having a first surface and a second surface, a cushion layer and an image receiving layer provided on the first surface in that order, and a back coat layer provided on the second surface, wherein the surface of the back coat layer has a suction pressure of 300 mmHg or more.Type: GrantFiled: April 4, 1997Date of Patent: October 13, 1998Assignee: Konica CorporationInventors: Katsumi Maejima, Tomoko Takeyama, Atsushi Nakajima, Katsuyuki Takeda
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Patent number: 5580693Abstract: Disclosed is a light-heat converting type heat mode recording process using a recording material and an image receiving material, which comprises the steps of:(a) transferring an ink image from a recording material to an image receiving material by exposing from a back of the recording material or the receiving material; and(b) transferring the ink image from the image receiving material to a final recording medium by applying heat or pressure.The light-heat converting type heat mode recording material and the light-heat converting type heat mode image receiving material are capable of forming excellent transferred images.Type: GrantFiled: May 28, 1993Date of Patent: December 3, 1996Assignee: Konica CorporationInventors: Atsushi Nakajima, Shinji Matsumoto, Katsumi Maejima, Sota Kawakami, Shozo Kikugawa
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Patent number: 5512931Abstract: A process for image forming by heat transfer method is disclosed. The process comprises the steps of (1) transferring an ink image from an ink layer of an ink sheet, which comprises a support and an ink layer provided on the support, to a surface of an intermediate image receiving layer of an intermediate image receiving sheet, which comprises a support and an image receiving layer provided on the support, by imagewise heating the ink layer, and (2) re-transferring the ink image transferred on the intermediate image receiving layer to a secondary image receiving sheet,In the above process, the ink layer comprises a coloring material and a homopolymer or a copolymer comprising a repeating unit derived from a monomer represented by the following Formula 1 or a phthalic polyester formed by polymerization of phthalic acid and a polyol; ##STR1## wherein R.sub.1 is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; R.sub.2, R.sub.3 and R.sub.Type: GrantFiled: June 1, 1993Date of Patent: April 30, 1996Assignee: Konica CorporationInventors: Atsushi Nakajima, Shinji Matsumoto, Katsumi Maejima, Koichi Nakatani, Sota Kawakami, Ai Katsuda
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Patent number: 5501937Abstract: Disclosed is a heat mode thermal transfer recording material comprising a support having thereon at least a light-heat converting layer containing a water-soluble colorant and an ink layer. The heat mode thermal transfer recording material is capable of forming transferred images excellent in color reproduction.Type: GrantFiled: November 4, 1994Date of Patent: March 26, 1996Assignee: Konica CorporationInventors: Shinji Matsumoto, Atsushi Nakajima, Katsumi Maejima, Sota Kawakami, Koichi Nakatani