Patents by Inventor Yu Kudo

Yu Kudo 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: 20190088879
    Abstract: A compound represented by formula (1) provides an organic electroluminescence device having a low driving voltage and an excellent emission efficiency: wherein R1 to R8, R11 to R18, R21 to R28, R31 to R38, X, Y, L1, L2, L3, and Ar are as defined in the description.
    Type: Application
    Filed: October 31, 2018
    Publication date: March 21, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO
  • Publication number: 20180339994
    Abstract: A compound represented by the following formula (1):
    Type: Application
    Filed: August 26, 2016
    Publication date: November 29, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu KUDO, Yumiko MIZUKI, Masahiro KAWAMURA, Tomoki KATO, Hirokatsu ITO, Tasuku HAKETA, Yuichi NISHIMAE, Annemarie WOLLEB
  • Patent number: 10120186
    Abstract: A scanning mirror includes a mirror base and a reflective film formed on the mirror base. The mirror base is formed from a non-metallic material having a specific rigidity, determined by Young's modulus (GPa) and density (g/cm3), of at least 100 GPa·cm3/g.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: November 6, 2018
    Assignee: Disco Corporation
    Inventor: Yu Kudo
  • Publication number: 20180179206
    Abstract: A compound represented by formula (1): wherein R1 to R8, R12 to R18, R21 to R25, R31 to R48, L1 to L3, and Ar are as defined in the specification, provides a high performance organic electroluminescence device which comprises a cathode, an anode and an organic layer between the cathode and the anode, wherein the organic layer comprises a light emitting layer and at least one layer of the organic layer comprises the compound.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 28, 2018
    Applicant: Idemitsu kosan Co., Ltd.,
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO
  • Publication number: 20180182974
    Abstract: A compound represented by formula (1): wherein each symbol is as defined in the specification, provides a high performance organic electroluminescence device which comprises a cathode, an anode and an organic layer between the cathode and the anode, wherein the organic layer comprises a light emitting layer and at least one layer of the organic layer comprises the compound.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 28, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO
  • Publication number: 20170222144
    Abstract: A compound represented by formula (1): wherein Ar is a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted nitrogen-comprising heteroaryl group having 5 to 30 ring atoms; each of L1 and L2 is independently a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a substituted or unsubstituted divalent linking group wherein 2 to 4 groups selected from an arylene group having 6 to 30 ring carbon atoms and a heteroarylene group having 5 to 30 ring atoms are bonded to each other via a single bond; A is a monovalent group represented by formula (2); and B is a monovalent group represented by formula (5): wherein R1 to R10 and R21 to R30 are as defined in the description, enables the emission of light of a purer blue (shorter wavelength), a narrower half width (high
    Type: Application
    Filed: October 8, 2015
    Publication date: August 3, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO, Masahiro KAWAMURA, Ryota TAKAHASHI
  • Publication number: 20170205622
    Abstract: A scanning mirror includes a mirror base and a reflective film formed on the mirror base. The mirror base is formed from a non-metallic material having a specific rigidity, determined by Young's modulus (GPa) and density (g/cm3), of at least 100 GPa·cm3/g.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 20, 2017
    Inventor: Yu Kudo
  • Patent number: 9613415
    Abstract: Disclosed herein is a protective film detecting method including the steps of supplying a mist to a work surface of a workpiece in the condition where the work surface is coated with a protective film, applying light to the work surface of the workpiece, imaging the work surface of the workpiece after supplying the mist, and detecting an uncoated area where the protective film is not formed, by using a difference in light intensity between a coated area where the protective film is formed and the uncoated area where the protective film is not formed to cause the formation of asperities due to droplets formed from the mist supplied to the work surface of the workpiece and the occurrence of Mie scattering of the light applied to the asperities, the difference in light intensity being detected from an image obtained in the imaging step.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: April 4, 2017
    Assignee: Disco Corporation
    Inventors: Yu Kudo, Yusaku Ito, Tomoaki Endo, Yukinobu Ohura, Ayana Nakanishi, Senichi Ryo, Kentaro Odanaka
  • Publication number: 20170005274
    Abstract: Disclosed are a compound having, as a main skeleton, a polycyclic structure represented by the following general formula (1), a material for organic electroluminescence devices including the compound, an organic electroluminescence device using the compound, and electronic equipment having the organic electroluminescence device mounted thereon. A compound capable of realizing an organic EL device with high emission efficiency, a material for organic electroluminescence devices including the compound, an organic electroluminescence device using the compound, and electronic equipment having the organic electroluminescence device mounted thereon, are provided. In the formula (1), A, L, X1 to X16, R, RA, and RB are those defined in the specification.
    Type: Application
    Filed: August 14, 2015
    Publication date: January 5, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu KUDO, Kei YOSHIDA, Masahiro KAWAMURA, Yumiko MIZUKI, Hirokatsu ITO, Tasuku HAKETA, Tomoharu HAYAMA
  • Publication number: 20160368088
    Abstract: A laser processing apparatus includes a laser beam applying unit. The laser beam applying unit includes a laser oscillator for oscillating a laser beam, a focusing lens for focusing the laser beam to apply the laser beam to a wafer, a first optical path changing part, a second optical path changing part, and a controller. The first optical path changing part has a pair of first-axis resonant scanners which are disposed on the downstream side with respect to the propagating direction of the laser beam oscillated from the laser oscillator and which change the optical path of the laser beam into a Y-axis direction. The second optical path changing part has a pair of second-axis resonant scanners which are disposed between the first optical path changing part and the focusing lens and which change the optical path of the laser beam into an X-axis direction.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Inventors: Yu Kudo, Keiji Nomaru
  • Publication number: 20160125591
    Abstract: Disclosed herein is a protective film detecting method including the steps of supplying a mist to a work surface of a workpiece in the condition where the work surface is coated with a protective film, applying light to the work surface of the workpiece, imaging the work surface of the workpiece after supplying the mist, and detecting an uncoated area where the protective film is not formed, by using a difference in light intensity between a coated area where the protective film is formed and the uncoated area where the protective film is not formed to cause the formation of asperities due to droplets formed from the mist supplied to the work surface of the workpiece and the occurrence of Mie scattering of the light applied to the asperities, the difference in light intensity being detected from an image obtained in the imaging step.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 5, 2016
    Inventors: Yu Kudo, Yusaku Ito, Tomoaki Endo, Yukinobu Ohura, Ayana Nakanishi, Senichi Ryo, Kentaro Odanaka