Patents by Inventor Masahito Ohe

Masahito Ohe 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: 9640107
    Abstract: Disclosed is a transition metal complex represented by the following formula (1): (wherein: M represents a transition metal element; K represents an uncharged monodentate or bidentate ligand; L represents a monodentate or bidentate monoanionic or dianionic ligand; m and o represent an integer from 0 to 5; n represents an integer from 1 to 3; p represents an integer from 0 to 4; W— represents a counterion; and Y1 to Y4, R1, and R2 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, a heterocycloalkyl group, an aryl group, an aralkyl group, a heteroaryl group, an alkenyl group, an alkynyl group, or an alkoxy group).
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 2, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshimasa Fujita, Masahito Ohe, Tetsuji Itoh
  • Publication number: 20140306869
    Abstract: The transition metal complex is represented by Formula (1) [where M represents a transition metal element; K and L each represent a monodentate or bidentate ligand; m and o each represent an integer from 0 to 5; n represents an integer from 1 to 3; X, Y, R1, R2, and R4 each represent a hydrogen atom, alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, aralkyl, alkenyl, alkynyl, or alkoxy; R3 represents a hydrogen atom, alkyl, cycloalkyl, heterocycloalkyl, aryl, aralkyl, heteroaryl, alkenyl, alkynyl, aryloxy, or alkoxy having two or more carbon atoms; and A represents alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, aralkyl, alkenyl, alkynyl, or alkoxy].
    Type: Application
    Filed: September 14, 2012
    Publication date: October 16, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshimasa Fujita, Masahito Ohe, Makoto Yamada, Tetsuji Itoh, Ayataka Endo
  • Patent number: 8796719
    Abstract: A light-emitting element of the present invention includes (i) a light-emitting layer (109), (ii) an electrode layer (110) being transparent to part of light emitted from the light-emitting layer (109), (iii) color converting layers (113, 114), and (iv) a transparent layer (115). The color converting layers (113, 114) and the transparent layer (115) sandwich the transparent electrode layer (110) with the light-emitting layer (109). The color converting layers (113, 114) and the transparent electrode layer (115) contain particles (116, 117, 118) expressing a surface plasmon phenomenon, respectively.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 5, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahito Ohe, Yoshimasa Fujita, Yuhki Kobayashi, Ken Okamoto, Hidenori Ogata, Makoto Yamada
  • Publication number: 20140152637
    Abstract: Disclosed is a transition metal complex represented by the following formula (1): (wherein M represents a transition metal element; K represents an uncharged monodentate or bidentate ligand; L represents a monodentate or bidentate monoanionic or dianionic ligand; m and o represent an integer from 0 to 5; n represents an integer from 1 to 3; p represents an integer from 0 to 4; W— represents a counterion; and Y1 to Y4, R1, and R2 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, a heterocycloalkyl group, an aryl group, an aralkyl group, a heteroaryl group, an alkenyl group, an alkynyl group, or an alkoxy group).
    Type: Application
    Filed: May 15, 2012
    Publication date: June 5, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshimasa Fujita, Masahito Ohe, Tetsuji Itoh
  • Patent number: 8704988
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0° to 45°.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 22, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20130303777
    Abstract: A luminescent material includes a transition metal complex which comprises any one of Ir, Os, and Pt as a central metal; and at least one of a carbene ligand and a silylene ligand. The carbene ligand includes a boron atom in a skeleton thereof. The carbene ligand is neutral or monoanionic. The carbene ligand is monodentate, bidentate, or tridentate. The silylene ligand includes a boron atom in a skeleton thereof. The silylene ligand is neutral or monoanionic. The silylene ligand is monodentate, bidentate, or tridentate.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Ken Okamoto, Tetsuji Itoh, Masahito Ohe, Yoshimasa Fujita, Hidenori Ogata, Akinori Itoh, Makoto Yamada
  • Publication number: 20130303776
    Abstract: A luminescent material includes transition metal complex comprising a ligand in which an electron density of a p orbital of a highest occupied molecular orbital level is higher than 0.239 and lower than 0.711 when the electron density is calculated according to quantum chemical calculation (Gaussian09/DFT/RB3LYP/6-31G), the p orbital being in the outermost shell of an element coordinated to the metal.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Ken Okamoto, Masahito Ohe, Yoshimasa Fujita, Katsumi Kondoh
  • Publication number: 20130194534
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0° to 45°.
    Type: Application
    Filed: March 5, 2013
    Publication date: August 1, 2013
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20130154478
    Abstract: An organic light emitting device includes first and second substrates, an organic light emitting element between the first and second substrates, a driving unit located between the first and second substrates to drive the organic light emitting element, a fluorescent layer included on a first surface of the first substrate, and a conductive layer with optical transparency included on a second surface of the first substrate, wherein the organic light emitting element includes a light emitting layer, and a pair of electrodes having the light emitting layer interposed therebetween, the fluorescent layer is provided above the electrode on the side from which light emitted from the light emitting layer is extracted among the pair of electrodes, the fluorescent layer performs fluorescence-conversion on a color of the light emitted from the light emitting layer, the fluorescent layer includes a layer that absorbs light having a specific wavelength, the first substrate has optical transparency, light is emitted from
    Type: Application
    Filed: June 30, 2011
    Publication date: June 20, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masahito Ohe, Katsumi Kondoh
  • Patent number: 8427613
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, and an orientation film formed on the first substrate. The orientation film has two orientation regions in a pixel, and the orientation regions are formed by polarized light.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: April 23, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20120326180
    Abstract: A light-emitting element of the present invention includes (i) a light-emitting layer (109), (ii) an electrode layer (110) being transparent to part of light emitted from the light-emitting layer (109), (iii) color converting layers (113, 114), and (iv) a transparent layer (115). The color converting layers (113, 114) and the transparent layer (115) sandwich the transparent electrode layer (110) with the light-emitting layer (109). The color converting layers (113, 114) and the transparent electrode layer (115) contain particles (116, 117, 118) expressing a surface plasmon phenomenon, respectively.
    Type: Application
    Filed: October 28, 2010
    Publication date: December 27, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masahito Ohe, Yoshimasa Fujita, Yuhki Kobayashi, Ken Okamoto, Hidenori Ogata, Makoto Yamada
  • Patent number: 8154698
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first electrode and a second electrode formed on the first substrate, the second electrode being arranged at an upper layer with respect to the first electrode, a drain signal line and a gate signal line formed on the first substrate, and a liquid crystal layer driven by an electric field formed between the first electrode and the second electrode. The first electrode extends in parallel to the drain signal line and the second electrode extends at a slanted direction to the drain signal line.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: April 10, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20110234961
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first electrode and a second electrode formed on the first substrate, the second electrode being arranged at an upper layer with respect to the first electrode, a drain signal line and a gate signal line formed on the first substrate, and a liquid crystal layer driven by an electric field formed between the first electrode and the second electrode. The first electrode extends in parallel to the drain signal lien and the second electrode extends at a slanted direction to the drain signal line.
    Type: Application
    Filed: June 3, 2011
    Publication date: September 29, 2011
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20110228199
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, and an orientation film formed on the first substrate. The orientation film has two orientation regions in a pixel, and the orientation regions are formed by polarized light.
    Type: Application
    Filed: June 3, 2011
    Publication date: September 22, 2011
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Patent number: 7956973
    Abstract: A liquid crystal display device includes a first substrate and a second substrate with a liquid crystal material sandwiched therebetween, neighboring first, second, third and fourth regions arranged in a rectangular shape and in a clockwise direction, the first, second, third and fourth regions having a first pixel electrode, a second pixel electrode, a third pixel electrode and a fourth pixel electrode, respectively. The first pixel electrode and the third pixel electrode extend in a parallel direction to one another, and the second pixel electrode and the fourth pixel electrode extend in a parallel direction to one another.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: June 7, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Patent number: 7724334
    Abstract: A liquid crystal display device includes a pair of substrates with a liquid crystal layer therebetween with a plurality of scanning signal lines and of video signal lines being formed on a first substrate. The scanning and video signal lines are arranged in a shape of a grid, and a pixel region is defined as a region surrounded by the scanning and video signal lines. A black matrix is formed on a second substrate, is arranged in a position overlapped on the scanning and video signal lines, and has an opening portion in each pixel region. A plurality of first electrodes are provided on the first substrate, and a plurality of second electrodes are provided on the second substrate, wherein at least one of first electrodes and at least one of the second electrodes are arranged in a position overlapped with the opening portion.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: May 25, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20100103361
    Abstract: A liquid crystal display device includes a first substrate and a second substrate with a liquid crystal material sandwiched therebetween, neighboring first, second, third and fourth regions arranged in a rectangular shape and in a clockwise direction, the first, second, third and fourth regions having a first pixel electrode, a second pixel electrode, a third pixel electrode and a fourth pixel electrode, respectively. The first pixel electrode and the third pixel electrode extend in a parallel direction to one another, and the second pixel electrode and the fourth pixel electrode extend in a parallel direction to one another.
    Type: Application
    Filed: December 30, 2009
    Publication date: April 29, 2010
    Inventors: Masuyuki OHTA, Kazuhiro Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Patent number: 7684005
    Abstract: A liquid crystal display apparatus includes a liquid crystal panel having polarizers, and a back light having a light source for illumination of the liquid crystal panel which has a characteristic of spectral transmittance required to satisfy the following equation, x>y>z, when a medium tone display voltage varies in a range between a minimum and maximum voltage for a Blue pixel, where “x” is a value of the transmittance in the panel at a wavelength corresponding to a longest wavelength in a range of wavelengths designated for blue light, “y” is a value of the transmittance in the panel at a wavelength corresponding to a maximum value of the intensity in a range of wavelengths designated for green light, and “z” is a value of the transmittance in the panel at a wavelength corresponding to a maximum value of the intensity in a range of wavelengths designated for red light.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: March 23, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Ohe, Kazuhiko Yanagawa, Keiichiro Ashizawa
  • Publication number: 20090040438
    Abstract: A liquid crystal display apparatus includes a liquid crystal panel having polarizers, and a back light having a light source for illumination of the liquid crystal panel which has a characteristic of spectral transmittance required to satisfy the following equation, x>y>z, when a medium tone display voltage varies in a range between a minimum and maximum voltage for a Blue pixel, where “x” is a value of the transmittance in the panel at a wavelength corresponding to a longest wavelength in a range of wavelengths designated for blue light, “y” is a value of the transmittance in the panel at a wavelength corresponding to a maximum value of the intensity in a range of wavelengths designated for green light, and “z” is a value of the transmittance in the panel at a wavelength corresponding to a maximum value of the intensity in a range of wavelengths designated for red light.
    Type: Application
    Filed: October 2, 2008
    Publication date: February 12, 2009
    Inventors: Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Ohe, Kazuhiko Yanagawa, Keiichiro Ashizawa
  • Publication number: 20080303998
    Abstract: A liquid crystal display device includes a pair of substrates with a liquid crystal layer therebetween with a plurality of scanning signal lines and of video signal lines being formed on a first substrate. The scanning and video signal lines are arranged in a shape of a grid, and a pixel region is defined as a region surrounded by the scanning and video signal lines. A black matrix is formed on a second substrate, is arranged in a position overlapped on the scanning and video signal lines, and has an opening portion in each pixel region. A plurality of first electrodes are provided on the first substrate, and a plurality of second electrodes are provided on the second substrate, wherein at least one of first electrodes and at least one of the second electrodes are arranged in a position overlapped with the opening portion.
    Type: Application
    Filed: March 12, 2008
    Publication date: December 11, 2008
    Inventors: Masuyuki OHTA, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann