Patents by Inventor Kousuke Watanabe

Kousuke Watanabe 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).

  • Publication number: 20130320839
    Abstract: A charge transporting material which allows for a low driving voltage and is superior in luminous efficiency and durability is provided. The charge transporting material comprising a compound represented by any one of the general formula (1-1) to (1-3), wherein R111 to R114, R121 to R125 and R131 to R135, L111 to L113, and L121 to L123, are as defined in the specification.
    Type: Application
    Filed: May 20, 2013
    Publication date: December 5, 2013
    Applicant: UDC IRELAND LIMITED
    Inventor: Kousuke WATANABE
  • Publication number: 20130313532
    Abstract: [Problem] To provide a charge transporting material which allows for a low driving voltage and is superior in luminous efficiency and durability. [Means for resolution] A charge transporting material comprising a compound represented by any one of the following general formula (1-1) to general formula (1-3): wherein R111 to R114, R121 to R125 and R131 to R135 each independently represent a hydrogen atom or a substituent, and may be bound together to form a ring; L111 to L113 each independently represent O or S; L121 to L123 each independently represent a single bond or a divalent linking group; and Ar111 to Ar113 each independently represent an aryl group or a heteroaryl group.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 28, 2013
    Applicant: UDC IRELAND LIMITED
    Inventors: Kousuke WATANABE, Yosuke YAMAMOTO, Wataru SOTOYAMA
  • Publication number: 20130270530
    Abstract: An organic electroluminescence device having high efficiency, low in driving voltage and excellent in durability and a compound useful for the organic electroluminescence device are provided. An organic electroluminescence device comprising, a substrate having thereon: a pair of electrodes of an anode and a cathode; and at least one organic layer comprising a light-emitting layer between the pair of electrodes, and the light-emitting layer contains at least one kind of a phosphorescent material, and at least either one layer of the at least one organic layer contains a specific compound having a dibenzothiophene or dibenzofuran structure, and the compound.
    Type: Application
    Filed: September 5, 2011
    Publication date: October 17, 2013
    Applicant: UDC Ireland Limited
    Inventors: Kousuke Watanabe, Wataru Sotoyama
  • Publication number: 20130214259
    Abstract: An organic electroluminescent element is provided that has high luminous efficiency, and a slow luminance deterioration rate in the initial stage of lighting. The organic electroluminescent element includes a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein at least one organic layer includes a compound represented by the general formula (1). (R11 to R15 represent hydrogen atoms, alkyl groups, or silyl groups, and any one of R21 to R24 represents a group represented by general formula (1A) or (1B). Ph4 represents a p-phenylene group, and at least one of Ph4a and Ph4b represents a p-phenylene group.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 22, 2013
    Applicant: UDC Ireland Limited
    Inventors: Kousuke Watanabe, Koji Takaku, Wataru Toyama, Toshihiro Ise, Masaru Kinoshita, Saki Takada
  • Patent number: 8436172
    Abstract: Provided is a material selecting method used upon purifying an iridium complex by sublimation which includes: selecting an iridium complex having a specific structure and having a rate of weight loss of 45% or greater when heated to 500° C. at a heating rate of 2° C./min under the degree of vacuum of from 1×10?3 Pa to 1×10?1 Pa; and carrying out sublimation purification.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: May 7, 2013
    Assignee: UDC Ireland Limited
    Inventors: Kousuke Watanabe, Keiju Tonosaki
  • Patent number: 8394481
    Abstract: A WORM-type recording layer in an optical information recording medium contains at least one azo-metal complex dye derived from a metal ion and a compound represented by the following general formula (1-1) or (1-2): wherein Q represents a carbocyclic group or a heterocyclic group, and R6 to R8 independently represent a hydrogen atom or a substituent. The compound represented by the general formula (1-1) or (1-2) has a dissociative hydrogen atom in Q, and the dissociative hydrogen atom in Q and the hydrogen atom in the —NH— group marked with asterisk * are eliminated from the compound, so that the residue is bonded to the metal ion to generate the azo-metal complex dye. The azo-metal complex dye may contain a component other than the metal ion and the compound represented by the general formula (1-1) or (1-2).
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: March 12, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Taro Hashizume, Kazutoshi Katayama
  • Publication number: 20120306360
    Abstract: An organic electroluminescent device, which has a pair of electrodes, and at least one organic layer including a luminescent layer between the electrodes, wherein the organic layer contains at least one compound of formula (1): wherein Q11 are atoms for forming a nitrogen-containing hetero ring; Z11 to Z13 each independently represents CR, wherein R represents a substituent, CH or N; n11 is 0 or 1; M11 is a metal or boron ion that may further have a ligand(s); and a compound of formula (6): wherein R63 to R66 each is a hydrogen atom or a substituent; X61 to X64 and Z61 to Z66 each is CR, wherein R represents a substituent, CH or N.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 6, 2012
    Applicant: UDC IRELAND LIMITED
    Inventors: Tatsuya IGARASHI, Kousuke WATANABE, Seiji ICHIJIMA, Toshihiro ISE
  • Patent number: 8257838
    Abstract: An organic electroluminescent device, which has a pair of electrodes, and at least one organic layer including a luminescent layer between the electrodes, wherein the organic layer contains at least one compound of formula (1): wherein Q11 are atoms for forming a nitrogen-containing hetero ring; Z11 to Z13 each independently represents CR, wherein R represents a substituent, CH or N; n11 is 0 or 1; M11 is a metal or boron ion that may further have a ligand(s); and a compound of formula (6): wherein R63 to R66 each is a hydrogen atom or a substituent; X61 to X64 and Z61 to Z66 each is CR, wherein R represents a substituent, CH or N.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 4, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Tatsuya Igarashi, Kousuke Watanabe, Seiji Ichijima, Toshihiro Ise
  • Publication number: 20120184743
    Abstract: Provided is a material selecting method used upon purifying an iridium complex by sublimation which includes: selecting an iridium complex having a specific structure and having a rate of weight loss of 45% or greater when heated to 500° C. at a heating rate of 2° C./min under the degree of vacuum of from 1×10?3 Pa to 1×10?1 Pa; and carrying out sublimation purification.
    Type: Application
    Filed: August 27, 2010
    Publication date: July 19, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Kousuke Watanabe, Keiju Tonosaki
  • Publication number: 20120169220
    Abstract: An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Inventors: Kazumi Nii, Kousuke Watanabe, Tatsuya Igarashi, Seiji Ichijima, Toshihiro Ise
  • Patent number: 8211553
    Abstract: An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 3, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Kazumi Nii, Kousuke Watanabe, Tatsuya Igarashi, Seiji Ichijima, Toshihiro Ise
  • Patent number: 8156852
    Abstract: A cut target medium driving type cutting plotter, where a cut target medium to be cut is driven in a first direction and a cutting unit is driven in a second direction perpendicular to the first direction, thereby moving the cutting unit in a two-dimensional direction relative to the cut target medium to make the cutting unit to be selectively brought into press contact with and separated from the cut target medium to cut the cut target medium in a desired shape, the cut target medium driving type cutting plotter includes a cut target medium supporting sheet to removably support the cut target medium on a surface opposite to the cutting unit. Preferably, the cut target medium is driven in the first direction together with the cut target medium supporting sheet, and the cut target medium supported on the cut target medium supporting sheet is cut by the cutting unit.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: April 17, 2012
    Assignee: Graphtec Kabushiki Kaisha
    Inventors: Takeya Shibata, Yuzuru Sekiguchi, Michiharu Nishijima, Tsutomu Tsuji, Hidemi Koike, Yutaka Saegusa, Kousuke Watanabe, Takayuki Tanigawa, Toshihiro Houhara, Shinichi Mukasa, Kenji Yamamoto
  • Patent number: 8092890
    Abstract: The optical information recording medium comprises a recording layer on a surface of a support. The surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye, the azo metal complex dye is a complex of one or more azo dye and transition metal ions of which number is equal to or greater than the number of the azo dye. The azo metal complex dye comprises two or more transition metal ions per molecule, and in a molecule of the azo metal complex dye.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: January 10, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Tetsuya Watanabe, Taro Hashizume, Masashi Ogiyama
  • Publication number: 20110202942
    Abstract: An aspect of the present invention relates to an optical information recording medium comprising a recording layer, wherein the recording layer comprises a cationic dye and a polynuclear azo metal complex dye comprising an azo dye and a metal ion, and a method of recording information comprising recording information on the recording layer comprised in the optical recording medium, and conducting the recording by irradiation of a laser beam having a wavelength of equal to or shorter than 440 nm onto the optical information recording medium. Another aspect of the present invention relates to a photo sensitizer.
    Type: Application
    Filed: October 9, 2009
    Publication date: August 18, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Taisuke Fujimoto, Kousuke Watanabe, Taro Hashizume
  • Publication number: 20110177281
    Abstract: An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye being a complex of six azo dyes and seven transition metal ions. A further aspect of the present invention relates to a method of recording information onto the optical information recording medium and a novel azo metal complex dye.
    Type: Application
    Filed: September 25, 2009
    Publication date: July 21, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Kousuke Watanabe, Taisuke Fujimoto, Tetsuya Watanabe, Masashi Ogiyama, Seiji Hatano, Taro Hashizume, Hirokazu Hashimoto
  • Publication number: 20100074082
    Abstract: A WORM-type recording layer in an optical information recording medium contains at least one azo-metal complex dye derived from a metal ion and a compound represented by the following general formula (1-1) or (1-2): wherein Q represents a carbocyclic group or a heterocyclic group, and R6 to R8 independently represent a hydrogen atom or a substituent. The compound represented by the general formula (1-1) or (1-2) has a dissociative hydrogen atom in Q, and the dissociative hydrogen atom in Q and the hydrogen atom in the —NH— group marked with asterisk * are eliminated from the compound, so that the residue is bonded to the metal ion to generate the azo-metal complex dye. The azo-metal complex dye may contain a component other than the metal ion and the compound represented by the general formula (1-1) or (1-2).
    Type: Application
    Filed: September 28, 2007
    Publication date: March 25, 2010
    Applicant: Fujifilm Corporation
    Inventors: Kousuke Watanabe, Taro Hashizume, Kazutoshi Katayama
  • Publication number: 20100019670
    Abstract: An organic electroluminescent device, which has a pair of electrodes, and at least one organic layer including a luminescent layer between the electrodes, wherein the organic layer contains at least one compound of formula (1): wherein Q11 are atoms for forming a nitrogen-containing hetero ring; Z11 to Z13 each independently represents CR, wherein R represents a substituent, CH or N; n11 is 0 or 1; M11 is a metal or boron ion that may further have a ligand(s); and a compound of formula (6): wherein R63 to R66 each is a hydrogen atom or a substituent; X61 to X64 and Z61 to Z66 each is CR, wherein R represents a substituent, CH or N.
    Type: Application
    Filed: September 30, 2009
    Publication date: January 28, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Tatsuya IGARASHI, Kousuke WATANABE, Seiji ICHIJIMA, Toshihiro ISE
  • Publication number: 20090290469
    Abstract: An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the recording layer comprises at least one azo metal complex dye that is a complex of at least one azo dye and at least one metal ion, and the azo metal complex dye comprises equal to or more than four bonds, each of the bonds being formed between one azo dye molecule and one metal ion.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 26, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Tetsuya Watanabe, Taro Hashizume
  • Patent number: 7615633
    Abstract: An organic electroluminescent device, which has a pair of electrodes, and at least one organic layer including a luminescent layer between the electrodes, wherein the organic layer contains at least one compound of formula (I): wherein Q11 are atoms for forming a nitrogen-containing hetero ring; Z11 to Z13 each independently represents CR, wherein R represents a substituent, CH or N; n11 is 0 or 1; M11 is a metal or boron ion that may further have a ligand(s); and a compound of formula (6): wherein R63 to R66 each is a hydrogen atom or a substituent; X61 to X64 and Z61 to Z66 each is CR, wherein R represents a substituent, CH or N.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: November 10, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Tatsuya Igarashi, Kousuke Watanabe, Seiji Ichijima, Toshihiro Ise
  • Patent number: 7569692
    Abstract: An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: August 4, 2009
    Assignee: Fujifilm Corporation
    Inventors: Kazumi Nii, Kousuke Watanabe, Tatsuya Igarashi, Seiji Ichijima, Toshihiro Ise