Patents by Inventor Kimihiko Ookubo

Kimihiko Ookubo 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).

  • Active ray curable composition, active ray curable ink, image forming method and inkjet recording apparatus utilizing the same
    Patent number: 7390840
    Abstract: An active ray curable composition, including an epoxy compound which is represented by Formula (A) and an oxetane compound, The active ray curable compound exhibiting a viscosity of 1 to 500 mPa·s at 25° C.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: June 24, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Masato Nishizeki, Norio Miura, Kimihiko Ookubo, Takeshi Kurata
  • Polymerizable Actinic Radiation Curable Composition, Polymerization Method, Actinic Radiation Curable Ink and Image Formation Method, and Ink Jet Recording Apparatus and Epoxy Compound
    Publication number: 20080107821
    Abstract: A polymerizable actinic radiation curable composition comprising a photo-acid generating compound and an epoxy compound represented by Formula (1): wherein X represents a divalent group selected form the group consisting of —O—, —S—, —SO—, —SO2—, —CBr2—, —C(CBr3)2—, and —C(CF3)2—; R1 to R18 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1-8 carbon atoms, provided that the hydrocarbon group may contain an oxygen atom or a halogen atom, or a substituted or unsubstituted alkoxy group having 1-8 carbon atoms.
    Type: Application
    Filed: November 29, 2005
    Publication date: May 8, 2008
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Nobumasa Sasa, Norio Miura, Kimihiko Ookubo, Takeshi Kurata
  • Active ray curable ink, image forming method and ink-jet recording apparatus
    Patent number: 7360883
    Abstract: An active ray curable ink containing at least two photo-polymerization compounds, one of which is an oxetane compound having a specific formula, and the other is an epoxy compound, having an oxirane ring in the molecule.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: April 22, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Masato Nishizeki, Kimihiko Ookubo
  • INK SET FOR INK-JET RECORDING, POLYMERIZATION METHOD AND IMAGE FORMING METHOD
    Publication number: 20070219292
    Abstract: An ink set for ink-jet recording comprising a yellow ink composition for ink-jet recording containing one or more types of yellow color materials, a magenta ink composition for ink-jet recording containing one or more types of magenta color materials, and a cyan ink composition for ink-jet recording conditioning one or more types of cyan color materials, wherein each ink composition contains one or more of a) a compound having one or more polymerizable groups, b) an infrared absorbing agent, and c) a polymerization initiator, and further, the infrared absorbing agent contained in the yellow ink composition for ink-jet recording differs from the infrared absorbing agent contained in the cyan ink composition for ink-jet recording.
    Type: Application
    Filed: September 21, 2005
    Publication date: September 20, 2007
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Kimihiko Ookubo, Norio Miura, Takeshi Kurata
  • Active ray curable composition, active ray curable ink, image forming method and inkjet recording apparatus utilizing the same
    Publication number: 20050215657
    Abstract: An active ray curable composition, including an epoxy compound which is represented by Formula (A) and an oxetane compound, The active ray curable compound exhibiting a viscosity of 1 to 500 mPa·s at 25° C.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 29, 2005
    Inventors: Masato Nishizeki, Norio Miura, Kimihiko Ookubo, Takeshi Kurata
  • Ink composition for ink jet printing and image forming method
    Publication number: 20050209365
    Abstract: An ink composition for ink jet printing is disclosed, containing a compound represented by the following formula (a-1) or (a-2) and an alicyclic epoxy compound represented by the following formula (b). An image forming method by use thereof is also disclosed.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 22, 2005
    Inventors: Kimihiko Ookubo, Norio Miura, Masato Nishizeki
  • Active ray curable ink, image forming method and ink-jet recording apparatus
    Publication number: 20050190252
    Abstract: An active ray curable ink containing at least two photo-polymerization compounds, one of which is an oxetane compound having a specific formula, and the other is an epoxy compound, having an oxirane ring in the molecule.
    Type: Application
    Filed: February 15, 2005
    Publication date: September 1, 2005
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Masato Nishizeki, Kimihiko Ookubo