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).

  • Patent number: 8110128
    Abstract: 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: Grant
    Filed: September 13, 2006
    Date of Patent: February 7, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Masayuki Kurematsu, Toshiaki Shibue, Sota Kawakami, Katsumi Maejima
  • Publication number: 20100304020
    Abstract: 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: Application
    Filed: March 17, 2010
    Publication date: December 2, 2010
    Applicant: KONICA MINOLTA OPTO, INC.
    Inventors: Yoshikazu Ojima, Katsumi Maejima, Toshiyuki Ikeda
  • Publication number: 20060181774
    Abstract: 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: Application
    Filed: February 13, 2006
    Publication date: August 17, 2006
    Applicant: KONICA MINOLTA OPTO, INC.
    Inventors: Yoshikazu Ojima, Katsumi Maejima, Toshiyuki Ikeda
  • Patent number: 6749981
    Abstract: 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: Grant
    Filed: March 22, 2002
    Date of Patent: June 15, 2004
    Assignee: Konica Corporation
    Inventors: Atsushi Nakajima, Katsumi Maejima
  • Patent number: 6667144
    Abstract: 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: Grant
    Filed: February 20, 2002
    Date of Patent: December 23, 2003
    Assignee: Konica Corporation
    Inventors: Katsumi Maejima, Tomohisa Ohta, Taro Konuma, Tatsuichi Maehashi
  • Publication number: 20020192588
    Abstract: 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: Application
    Filed: February 20, 2002
    Publication date: December 19, 2002
    Inventors: Katsumi Maejima, Tomohisa Ohta, Taro Konuma, Tatsuichi Maehashi
  • Publication number: 20020146637
    Abstract: 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: Application
    Filed: March 22, 2002
    Publication date: October 10, 2002
    Applicant: KONICA CORPORATION
    Inventors: Atsushi Nakajima, Katsumi Maejima
  • Patent number: 6383621
    Abstract: 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: Grant
    Filed: November 24, 1999
    Date of Patent: May 7, 2002
    Assignee: Konica Corporation
    Inventors: Shizuka Tojima, Katsumi Maejima
  • Patent number: 6027850
    Abstract: A thermal transfer image forming method using a laser is disclosed.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: February 22, 2000
    Assignee: Konica Corporation
    Inventors: Sota Kawakami, Katsumi Maejima
  • Patent number: 5858604
    Abstract: 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: Grant
    Filed: January 16, 1996
    Date of Patent: January 12, 1999
    Assignee: Konica Corporation
    Inventors: Katsuyuki Takeda, Sota Kawakami, Katsumi Maejima, Koichi Nakatani, Shinji Matsumoto
  • Patent number: 5821028
    Abstract: 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: Grant
    Filed: April 4, 1997
    Date of Patent: October 13, 1998
    Assignee: Konica Corporation
    Inventors: Katsumi Maejima, Tomoko Takeyama, Atsushi Nakajima, Katsuyuki Takeda
  • Patent number: 5580693
    Abstract: 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: Grant
    Filed: May 28, 1993
    Date of Patent: December 3, 1996
    Assignee: Konica Corporation
    Inventors: Atsushi Nakajima, Shinji Matsumoto, Katsumi Maejima, Sota Kawakami, Shozo Kikugawa
  • Patent number: 5512931
    Abstract: 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: Grant
    Filed: June 1, 1993
    Date of Patent: April 30, 1996
    Assignee: Konica Corporation
    Inventors: Atsushi Nakajima, Shinji Matsumoto, Katsumi Maejima, Koichi Nakatani, Sota Kawakami, Ai Katsuda
  • Patent number: 5501937
    Abstract: 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: Grant
    Filed: November 4, 1994
    Date of Patent: March 26, 1996
    Assignee: Konica Corporation
    Inventors: Shinji Matsumoto, Atsushi Nakajima, Katsumi Maejima, Sota Kawakami, Koichi Nakatani