Patents by Inventor Kazuhiro Yokoi

Kazuhiro Yokoi 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: 7709547
    Abstract: The present invention provides an ink composition, and inkjet recording method, a printed material, a production method of a planographic printing plate, and a planographic printing plate. The ink composition of the present invention contains a cationically polymerizable compound, a compound that generates an acid when irradiated with a radiation ray, and an onium salt compound that generates an organic acid compound having a basic nitrogen atom when irradiated with a radiation ray.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: May 4, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Kazuhiro Yokoi, Ippei Nakamura, Kenji Wada
  • Publication number: 20100075061
    Abstract: The invention provides an ink composition including: a polymerizable polymer (A) having a main chain structure including urethane bonds or urea bonds, and, at the side chains of the main chain structure, polymerizable groups and at least one selected from a fluoroalkyl group (a1), a siloxane structure (a2) or a long chain alkyl structure (a3), a polymerizable compound (B) having a different structure from that of the polymerizable polymer (A), and a photopolymerization initiator (C).
    Type: Application
    Filed: July 28, 2009
    Publication date: March 25, 2010
    Applicant: FUJIFILM CORPORATION
    Inventor: Kazuhiro YOKOI
  • Publication number: 20090202795
    Abstract: An ink composition is provided that includes (A) a compound having an ethylenically unsaturated double bond and a silicone chain, (B) a polymerizable monomer, and (C) a radical polymerization initiator, at least 75 wt % of the polymerizable monomer being a monofunctional polymerizable monomer selected from the group consisting of a monofunctional acrylate, a monofunctional methacrylate, a monofunctional vinyloxy compound, a monofunctional N-vinyl compound, a monofunctional ethylenically unsaturated carboxylic acid compound, a monofunctional acrylamide, and a monofunctional methacrylamide. There are also provided an inkjet recording method that includes (i-1) a step of discharging the ink composition onto a recording medium and (i-2) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation, a printed material formed by employing the inkjet recording method, and a molded printed material formed by subjecting the printed material to molding.
    Type: Application
    Filed: January 16, 2009
    Publication date: August 13, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Yuuichi HAYATA, Kazuhiro Yokoi
  • Publication number: 20090197055
    Abstract: The present invention provides an ink composition having excellent ink ejection stability and stretching property, curable with a high sensitivity by irradiation of radiation rays, and capable of forming an image excellent in rubfastness and blocking resistance, an inkjet recording method using the ink composition, and a printed article. The ink composition includes (a) a polymer having a siloxane structure and a polymerizable group on a side chain thereof, (b) a polymerizable compound, and (c) a photopolymerization initiator, and the inkjet recording method includes a step of ejecting the ink composition onto a recording medium to be recorded with an inkjet recording apparatus and a step of curing the ink composition by irradiating active radiation rays on the ejected ink composition.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 6, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Kazuhiro Yokoi
  • Publication number: 20090197056
    Abstract: This invention provides an ink composition capable of forming an image which has favorable curing sensitivity, is excellent in rubbing resistance and blocking properties, and has controlled surface stickiness and improved surface curing properties, an inkjet recording method using the ink composition, and a printed material; and the ink composition containing a polymer (a) including a partial structure selected from the group consisting of fluorine-substituted hydrocarbon group, a siloxane skeleton group, and a long-chain alkyl group; a radical polymerizable group, and a tertiary amine structure.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 6, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Kazuhiro Yokoi, Yuuichi Hayata
  • Publication number: 20090142507
    Abstract: An ink composition for inkjet recording is provided. The ink composition contains (a) a monomer containing a fluorinated alkylene group and two or more polymerizable groups, (b) a photo initiator, and (c) a polymerizable monomer.
    Type: Application
    Filed: November 20, 2008
    Publication date: June 4, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Kazuhiro Yokoi, Taiji Katsumata
  • Publication number: 20090087626
    Abstract: An ink composition is provided that includes a perfluoroalkyl group-containing polymer, a polymerizable monomer, and a radical polymerization initiator, in which at least 80 wt % of the polymerizable monomer is a monofunctional polymerizable monomer selected from the group consisting of a monofunctional acrylate, a monofunctional methacrylate, a monofunctional vinyloxy compound, a monofunctional N-vinyl compound, a monofunctional acrylamide, and a monofunctional methacrylamide.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 2, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Yuuichi HAYATA, Kazuhiro Yokoi
  • Publication number: 20090088492
    Abstract: The invention provides an ink composition including (a) a tertiary amine compound having a cationically polymerizable group, (b) a photo-acid generator, and (c) a cationically polymerizable compound. According to the invention, an ink composition in which generation of tackiness on the surface of an image formed is effectively suppressed while maintaining curing sensitivity to irradiation with a radiation ray, blocking is not generated even in the case of laminating prints after image formation, and ejecting property in applying to an inkjet apparatus is good can be provided.
    Type: Application
    Filed: September 9, 2008
    Publication date: April 2, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Kazuhiro YOKOI
  • Publication number: 20080257188
    Abstract: The invention provides an ink composition comprising: a condensed cyclic lactone compound; a compound that generates an acid when irradiated with a radiation ray; a cationically polymerizable compound; and a colorant. Further, the invention provides an inkjet recording method using this ink composition, a printed material obtained by using the ink composition, and a planographic printing plate, and a method of producing a planographic printing plate.
    Type: Application
    Filed: September 19, 2007
    Publication date: October 23, 2008
    Applicant: FUJIFILM Corporation
    Inventor: Kazuhiro YOKOI
  • Publication number: 20080187727
    Abstract: The invention provides a radiation-curable polymerizable composition of the invention having (a) a hindered amine compound having no nucleophilic moiety in a molecule, (b) a photo-acid generating agent and (c) a cationic polymerizable monomer. The invention further provides an ink composition formed of the radiation-curable polymerizable composition, a method for ink jet recording having: ejecting the ink composition onto a recording medium by using an ink jet recording apparatus and irradiating the ejected ink composition so as to cure the ink composition, and a printed material obtained thereby. The invention further provides a method for forming a planographic printing plate having: ejecting the ink composition onto a hydrophilic recording medium by using an ink jet recording apparatus; and irradiating the ejected ink composition so as to cure the ink composition for forming a hydrophobic region, and a planographic printing plate obtained thereby.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 7, 2008
    Applicant: FUJIFILM CORPORATION
    Inventor: Kazuhiro YOKOI
  • Publication number: 20070115326
    Abstract: The present invention provides an ink composition, and inkjet recording method, a printed material, a production method of a planographic printing plate, and a planographic printing plate. The ink composition of the present invention contains a cationically polymerizable compound, a compound that generates an acid when irradiated with a radiation ray, and an onium salt compound that generates an organic acid compound having a basic nitrogen atom when irradiated with a radiation ray.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 24, 2007
    Inventors: Kazuhiro Yokoi, Ippei Nakamura, Kenji Wada
  • Publication number: 20060138988
    Abstract: By providing a moving body with a high-accuracy attitude detection mechanism including a pair of a first rate gyroscope for detecting the attitude of the moving body and a second rate gyroscope which obtains an output inverted from that of the first rate gyroscope and the variations in the outputs of the rate gyroscopes are mutually compensated for, thereby accurately detecting the attitude information of the moving body.
    Type: Application
    Filed: July 18, 2003
    Publication date: June 29, 2006
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Kenji Kaneko, Fumio Kanehiro, Kazuhiro Yokoi, Shuuji Kajita, Kiyoshi Fujiwara, Hirohisa Hirukawa
  • Patent number: 6923415
    Abstract: A seat slide device for a vehicle is provided which comprises a lower rail, an upper rail and a lock mechanism for releasably locking the upper rail to the lower rail. The lock mechanism includes one or more locking fingers pivotally installed on an upper rail side, a plurality of engaged portions provided to a lower rail side, and a biasing unit for urging the one or more locking fingers in the direction to engage a corresponding number of the engaged portions. The one or more locking fingers and the biasing unit are disposed within a space between the upper rail and the lower rail. The lock mechanism further includes a lock plate having the engagement portions. The lock plate is an independent part, disposed within the space and secured to the lower rail.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: August 2, 2005
    Assignees: Fuji Kiko Co., Ltd., Tachi-S Co., Ltd.
    Inventors: Kazuhiro Yokoi, Masaaki Yokota
  • Publication number: 20040118990
    Abstract: A seat slide device for a vehicle is provided which comprises a lower rail, an upper rail and a lock mechanism for releasably locking the upper rail to the lower rail. The lock mechanism includes one or more locking fingers pivotally installed on an upper rail side, a plurality of engaged portions provided to a lower rail side, and a biasing unit for urging the one or more locking fingers in the direction to engage a corresponding number of the engaged portions. The one or more locking fingers and the biasing unit are disposed within a space between the upper rail and the lower rail. The lock mechanism further includes a lock plate having the engagement portions. The lock plate is an independent part, disposed within the space and secured to the lower rail.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 24, 2004
    Applicants: FUJI KIKO CO., LTD., TACHI-S CO., LTD.
    Inventors: Kazuhiro Yokoi, Masaaki Yokota