Patents by Inventor Takashi Moriyama

Takashi Moriyama 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).

  • Metal coordination compound, luminescence device and display apparatus
    Publication number: 20050027123
    Abstract: An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below: MLmL?n??(1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L? are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML?n is represented by formula (3) or (4) shown below: at least one of the optional substituent(s) of the cyclic groups, and the cyclic groups CyCl and CyC2 includes a benzofuran structure capable of having a substituent represented by the following formula (5): The metal coordination compound having the benzofuran structure is effective in providing high-efficiency luminescence and long-term high luminance.
    Type: Application
    Filed: August 25, 2004
    Publication date: February 3, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takao Takiguchi, Shinjiro Okada, Akira Tsuboyama, Seishi Miura, Takashi Moriyama, Jun Kamatani, Manabu Furugori
  • Luminescence device, display apparatus and metal coordination compound
    Publication number: 20050025996
    Abstract: A luminescence device that has an organic compound layer disposed between a pair of electrodes. This organic compound layer contains a metal coordination compound represented by the following formula (1): wherein M is Ir, Rh or Pd; n is 2 or 3; CyN is a substituted or unsubstituted cyclic group containing a nitrogen atom connected to M and capable of containing another nitrogen atom and/or a sulfur atom; and CyC is a substituted or unsubstituted cyclic group containing a carbon atom connected to M and capable of containing a nitrogen atom and/or a sulfur atom.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 3, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
  • Lubricant tank for snowmobile lubrication system
    Patent number: 6848529
    Abstract: A lubricant tank for a lubrication system of a snowmobile engine includes an upper portion and a lower portion. The upper portion is enlarged relative to the lower portion. A recess is defined on an engine side of the lubricant tank by a lower surface of the upper portion and a lateral surface of the lower portion. The recess accommodates a protruding portion or component of the engine. The tank also comprises a sloping surface that extends between the upper portion and the lower portion inside the tank. Lubricant is returned in the upper portion and transferred to the lower portion through a zigzag flow path.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: February 1, 2005
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Takashi Moriyama
  • Luminescence device, display apparatus and metal coordination compound
    Publication number: 20050014025
    Abstract: A luminescence device comprising a pair of electrodes and an organic compound layer disposed between the electrodes. The layer contains a metal coordination compound represented by the following formula (1): wherein M is Ir, Rh or Pd; n is 2 or 3; and X1 to X8 is, independently, a hydrogen atom or a substituent selected from the group consisting of a halogen atom; a nitro group; a trifluoromethyl group; a trialkylsilyl group having three linear or branched alkyl groups each independently having 1-8 carbon atoms; and a linear or branched alkyl group having 2-20 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with —O—, —S—, —C(O)—, —C(O)—O—, —O—C(O)—, —CH?CH— or —C?C— and capable of including hydrogen atom which can be replaced with fluorine atom.
    Type: Application
    Filed: August 6, 2004
    Publication date: January 20, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Hidemasa Mizutani, Shinjiro Okada, Akira Tsuboyama, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
  • Light emitting device having a dopant in a light emitting layer and method of producing the light emitting device
    Patent number: 6838818
    Abstract: A light emitting device having an anode and a cathode provided on a substrate, and an organic light emitting layer between the anode and the cathode, where the organic light emitting layer includes a light emitting material and a dopant for improving the dispersibility thereof. As the dopant, there are employed a light emitting compound and a non-light emitting compound or a current enhancing material. In case of employing the light emitting compound, the composition corresponds to a case of utilizing plural light emitting materials, and, in such case, the light emission wavelengths are preferably mutually closer. Also, evaporation of the light emitting material and the dopant in the same evaporation boat makes it possible to reduce evaporation temperature, thereby improving the dispersability of the light emitting material.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: January 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Furugori, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Hironobu Iwawaki
  • Light emitting device and display unit which make use of porphyrin derivative compound
    Patent number: 6835471
    Abstract: A light emitting device is disclosed having a light emitting layer containing a porphyrin derivative compound each pyrrole group of which is characterized by having a straight-chain or branched side-chain alkyl group having 5 to 20 carbon atoms, and the central metal of which is Cr, Ni, Cu, Co, Ru, Rh, Pd, Ir, Pt or Au. The compound is light-emissive and especially has phosphorescent light emission properties and liquid crystal properties. Also disclosed is a display unit using the light emitting device.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: December 28, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsuboyama, Shinjiro Okada, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Jun Kamatani, Manabu Furugori
  • Organic electroluminescent device and display apparatus
    Patent number: 6836068
    Abstract: An organic electroluminescent device includes an organic compound layer containing luminescent sections placed between substantially transparent electrodes. An insulating light absorption layer is in contact with first electrodes, and the light absorption layer is placed between a substrate and the first electrodes.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: December 28, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Furugori, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Jun Kamatani
  • Display apparatus, liquid crystal display apparatus and driving method for display apparatus
    Publication number: 20040239612
    Abstract: A display apparatus is constituted by a display device including a plurality of pixels and control means for effecting a plurality of displaying operations at each pixel. Each of the displaying operation includes at least a first operation for displaying a first image at a first luminance and a second operation for displaying a second image substantially identical to the first image at a second luminance, said first and second luminances being non-zero and different from each other. One of the first and second luminances may preferably be smaller than ⅕ of the other luminance.
    Type: Application
    Filed: July 8, 2004
    Publication date: December 2, 2004
    Applicant: CANON KABUSHIKI KAISHI
    Inventors: Yasufumi Asao, Masahiro Terada, Takeshi Togano, Shosei Mori, Takashi Moriyama, Ryuichiro Isobe
  • Metal coordination compound and electroluminescence device
    Patent number: 6824894
    Abstract: A metal coordination compound having a basic structure represented by formula: MLmL′n (1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L′ are mutually different bidentate ligands; m is 1, 2 or 3; wherein at least one bidentate ligand has a partial structure formed by condensation via an alkylene group having 2-10 carbon atoms, is provided. In an electroluminescence device composed of one or a plurality of organic films disposed between a cathode and an anode, at least one layer is a luminescence layer which is formed by incorporating luminescence molecules constituting the metal coordination compound having a structure of the formula (1) described above as a guest material in a host material thereby to provide an electroluminescence device producing luminescence at high efficiency and stably keeping a high luminance for a long period.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: November 30, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Akira Tsuboyama, Shinjiro Okada, Jun Kamatani, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Manabu Furugori, Hidemasa Mizutani
  • Luminescence device, display apparatus and metal coordination compound
    Patent number: 6821646
    Abstract: A luminescence device that has an organic compound layer disposed between a pair of electrodes. This organic compound layer contains a metal coordination compound represented by the following formula (1) wherein M is Ir, Rh or Pd; n is 2 or 3; CyN is a substituted or unsubstituted cyclic group containing a nitrogen atom connected to M and capable of containing another nitrogen atom and/or sulfur atom; and CyC is a substituted or unsubstituted cyclic group containing a carbon atom connected to M and capable of containing a nitrogen atom and/or a sulfur atom.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: November 23, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
  • Luminescence device, display apparatus and metal coordination compound
    Patent number: 6815091
    Abstract: A luminescence device comprising a pair of electrodes and an organic compound layer disposed therebetween. The layer contains a metal coordination compound represented by the following formula (1): wherein M is Ir, Rh or Pd; n is 2 or 3; and X1 to X8 is, independently, a hydrogen atom or a substituent selected from the group consisting of a halogen atom; a nitro group; a trifluoromethyl group; a trialkylsilyl group having three linear or branched alkyl groups each independently having 1-8 carbon atoms; and a linear or branched alkyl group having 2-20 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with —O—, —S—, —C(O)—, —C(O)—O—, —O—C(O)—, —CH═CH— or —C≡C— and capable of including hydrogen atom which can be replaced with fluorine atom.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: November 9, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Hidemasa Mizutani, Shinjiro Okada, Akira Tsuboyama, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
  • Organic light emitting device
    Patent number: 6812497
    Abstract: An organic light emitting device having a high light emitting efficiency and a long light emission lifetime is provided that comprises a pair of electrodes provided on a substrate, and a light emitting layer comprising at least one layer of an organic substance provided between the electrodes, wherein the light emitting layer comprises a first organic substance and a second organic substance mainly concerning a light emission wavelength of the light emitting layer, and wherein the first organic substance comprises a fluorine-containing organic compound.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: November 2, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Manabu Furugori, Hironobu Iwawaki
  • Information device
    Publication number: 20040212588
    Abstract: An information device including a flexible display unit capable of displaying information having page information in units of pages, a unit that detects at least one of the bending direction, the amount of bending, and the duration that the display unit is bent, and a unit that determines whether or not page scrolling has been input based on the detected at least one of the bending direction, the amount of bending, and the duration and that updates the information output on the display unit when it is determined that page scrolling has been input. The information device provides the feeling of turning pages of a traditional book.
    Type: Application
    Filed: March 29, 2004
    Publication date: October 28, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventor: Takashi Moriyama
  • Display apparatus, liquid crystal display apparatus and driving method for display apparatus
    Patent number: 6809717
    Abstract: A display apparatus is constituted by a display device including a plurality of pixels and control means for effecting a plurality of displaying operations at each pixel. Each of the displaying operation includes at least a first operation for displaying a first image at a first luminance and a second operation for displaying a second image substantially identical to the first image at a second luminance, said first and second luminances being non-zero and different from each other. One of the first and second luminances may preferably be smaller than ⅕ of the other luminance.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: October 26, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasufumi Asao, Masahiro Terada, Takeshi Togano, Shosei Mori, Takashi Moriyama, Ryuichiro Isobe
  • Metal coordination compound, luminescence device and display apparatus
    Patent number: 6797980
    Abstract: A metal coordination compound suitable as an organic material for a luminescent device is represented by the following formula (1):
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: September 28, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Shinjiro Okada, Akira Tsuboyama, Koji Noguchi, Takashi Moriyama, Jun Kamatani, Manabu Furugori
  • Electro-conductive liquid crystal element and organic electro-luminescence element
    Patent number: 6788361
    Abstract: A polymer type organic EL element is improved in terms of the stability and the efficiency and intensity of light emission. A carrier injection layer made of discotic liquid crystal or smectic liquid crystal having an electron resonance structure is interposed between a polymer layer and an electrode.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 7, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Takashi Moriyama
  • Organic light-emitting element and display device
    Publication number: 20040169461
    Abstract: There is provided an organic light-emitting element comprising at least one light-emitting layer between a pair of electrodes formed on a substrate and at least two or more light emission center materials included in the light-emitting layer, and that the at least one or more light emission center materials include a phosphorescent light-emitting material, and an excitation lifetime of the light emission center material that emits light having a shortest wavelength is shorter than an excitation lifetime of the other light emission center material, whereby a high-efficiency organic light-emitting element without decreasing a color purity of white light emission can be obtained.
    Type: Application
    Filed: November 10, 2003
    Publication date: September 2, 2004
    Inventors: Takashi Moriyama, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Satoshi Igawa, Jun Kamatani, Hironobu Iwawaki
  • Metal coordination compound and organic luminescence device
    Patent number: 6783873
    Abstract: A metal coordination compound having a binuclear molecular structure represented by the following formula (1): wherein M1 and M2 independently denotes a metal atom selected from the group consisting of Ir, Pt, Rh, Pd, Ru and Os; P is a quadridentate ligand connected to M1 and M1; Q1 is a bidentate ligand connected to M1; Q2 is a bidentate ligand connected to M2; and n is 1 or 2.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: August 31, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
  • Luminescence device and metal coordination compound therefor
    Patent number: 6780528
    Abstract: A luminescence device is principally constituted by a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer contains a metal coordination compound characterized by having a partial structure represented by the following formula (1): wherein each of N and C represents an atom constituting a cyclic group.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 24, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takiguchi, Takashi Moriyama, Jun Kamatani
  • Signal transmission system
    Patent number: 6768346
    Abstract: A signal transmission system includes a first circuit block having a first output circuit for producing a first signal, a plurality of second circuit blocks each including a first receiving circuit for receiving the first signal, and transmission lines connected between the first circuit block and the second circuit blocks, wherein the first circuit block further includes a second output circuit for producing a second signal, and wherein each of the second circuit blocks further includes a second receiving circuit for receiving the second signal, the first receiving circuit latching the first signal in synchronism with the second signal, removing the unsuccessfulness in the signal transmission and reception due to the propagation delay of signals between circuits.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: July 27, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Toshitsugu Takekuma, Akira Yamagiwa, Takashi Moriyama, Ryoichi Kurihara