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).

  • Luminescence device and display apparatus
    Patent number: 6953628
    Abstract: In a luminescence device formed of one or plural layers of organic film between a cathode and an anode, at least one layer is a luminescence layer, and a luminescence molecule of a metal coordination compound having a basic structure represented by formula (1) MLmL?n and having a substituent on at least one of cyclic groups incorporated as a guest in a host material at a concentration of at least 8 wt. %, which is higher than a concentration at which a luminescence molecule of a similar structure but having no substituent exhibits a maximum luminescence efficiency to form the luminescence layer. As a result, a high-efficiency luminescence device is provided, which is less likely to cause concentration extinction even when a luminescence molecule is contained at a high concentration relative to the host material in the luminescence layer.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: October 11, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Manabu Furugori
  • Luminescence device and display apparatus
    Publication number: 20050208335
    Abstract: In a luminescence device formed of one or plural layers of organic film between a cathode and an anode, at least one layer is a luminescence layer, and a luminescence molecule of a metal coordination compound having a basic structure represented by formula (1) MLnL?n and having a substituent on at least one of cyclic groups incorporated as a guest in a host material at a concentration of at least 8 wt. %, which is higher than a concentration at which a luminescence molecule of a similar structure but having no substituent exhibits a maximum luminescence efficiency to form the luminescence layer. As a result, a high-efficiency luminescence device is provided, which is less likely to cause concentration extinction even when a luminescence molecule is contained at a high concentration relative to the host material in the luminescence layer.
    Type: Application
    Filed: May 11, 2005
    Publication date: September 22, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Manabu Furugori
  • Lubricant tank for snowmobile lubrication system
    Publication number: 20050205334
    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: Application
    Filed: February 1, 2005
    Publication date: September 22, 2005
    Inventor: Takashi Moriyama
  • Electroconductive device, organic electroluminescence device using the device and process for producing the electroconductive device
    Patent number: 6946207
    Abstract: An electroconductive device includes a pair of oppositely disposed electrodes, a luminescence layer and an electroconductive layer disposed between the electrodes. The electroconductive layer includes a mixture of a plurality of organic compounds which are mutually structural isomers and include a major component and a minor component. The mixture contains the major and minor components in a (major component/minor component) ratio of 1/1 to 9/1. When the electroconductive layer is used as a carrier injection or transport layer, preferably an electron injection layer, a resultant electroluminescence (EL) device exhibits a high luminescence efficiency.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: September 20, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Hidemasa Mizutani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Takashi Moriyama
  • Electroluminescent device using metal coordination compound
    Patent number: 6929873
    Abstract: A luminescent device having a high luminescence efficiency and a high luminance is provided by using a rhenium coordination compounds the luminescent device comprising a Re complex compound provided between a pair of electrodes on a substrate, wherein the Re complex compound is expressed by the following general formula: ReCO]n wherein Re is rhenium, CO is a carbonyl group, and n is an integer ranging from 1 to 5.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: August 16, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsuboyama, Shinjiro Okada, Takao Takiguchi, Koichi Suzuki, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori, Hironobu Iwawaki
  • Method of manufacturing a nonvolatile semiconductor memory device
    Publication number: 20050164442
    Abstract: An AND flash memory of the type wherein a memory cell is constituted of n-type semiconductor regions (a source and a drain) formed in a p-type well of a semiconductor substrate and three gates (including a floating gate, a control gate and a selective gate) is manufactured. In the manufacture, arsenic (As) is introduced into a p-type well in the vicinity of one of side walls of the selective gate to form n-type semiconductor regions (a source and a drain). Thereafter, to cope with a drain disturb problem, the substrate is thermally treated by use of an ISSG (In-Situ Steam Generation) oxidation method so that a first gate,insulating film disposed in the vicinity of one of side walls, at which the n-type semiconductor regions have been formed, is formed thick.
    Type: Application
    Filed: January 18, 2005
    Publication date: July 28, 2005
    Inventors: Kenji Kanamitsu, Takashi Moriyama, Naohiro Hosoda, Keiichi Haraguchi, Tetsuo Adachi
  • Metal coordination compound, luminescence device and display apparatus
    Patent number: 6921915
    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 CyC1 and CyC2 include an aromatic group capable of having a substituent represented by the following formula (5): ? The metal coordination compound having the aromatic group is effective in providing high-efficiency luminescence and long-term high luminance.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: July 26, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Shinjiro Okada, Akira Tsuboyama, Seishi Miura, Takashi Moriyama, Jun Kamatani, Manabu Furugori
  • Method of manufacturing a semiconductor device
    Publication number: 20050153521
    Abstract: A method of manufacturing a semiconductor device for preventing dielectric breakdown of gate electrodes attributable to needle-like protrusions caused inside a trench in the step of forming element isolation trench in which includes forming a silicon oxide film over a silicon nitride film as an etching mask for forming element isolation trenches, then cleaning the surface of a substrate with a hydrofluoric acid etching solution to lift off obstacles deposited over the surface of the silicon oxide film, before the step of patterning the silicon nitride film by using as a mask a photoresist film provided with an anti-reflection film therebelow.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 14, 2005
    Inventors: Kenji Kanamitsu, Takashi Moriyama, Naohiro Hosoda
  • Organic electroluminescence device
    Patent number: 6908694
    Abstract: A luminescence device is constituted by a substrate, a first electrode disposed on the substrate, at least one organic luminescence function layer disposed on the first electrode, a second electrode disposed on the above at least one organic luminescence function layer, and an oxygen absorbent disposed between the substrate and the second electrode or between the first and second electrodes. To the luminescence device, a voltage is applied between the first and second electrodes to cause phosphorescence from at last one layer constituting the above-mentioned at least one organic luminescence function layer preferably containing the oxygen absorbent. The oxygen absorbent may be formed in a layer disposed at a region other than pixel portions.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: June 21, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Moriyama, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Koji Noguchi, Jun Kamatani, Manabu Furugori
  • Luminescence device
    Patent number: 6897913
    Abstract: A luminescence device exhibiting a better luminescence efficiency is provided by disposing between a pair of electrodes a luminescence layer comprising a mixture of a liquid crystal compound assuming discotic phase or smectic phase with a phosphorescent compound preferably having a planar molecular skeleton.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: May 24, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsuboyama, Shinjiro Okada, Takao Takiguchi, Takashi Moriyama, Jun Kamatani
  • Electroluminescence device using liquid crystal compound
    Patent number: 6884477
    Abstract: An electroluminescence device contains a carrier transporting layer comprising a liquid crystal compound represented by R—X—A—B—X?—R???(I), wherein A and B denote a naphthalene-2,6-diyl skeleton optionally substituted with one or two of F, Cl, Br, CH3 and CF3, at least one of A and B comprising a naphthalene-2,6-diyl skeleton having one to four CH groups replaced with N; X and X? denote —O—, —S—, —OOC— or —COO—; and one of R and R? denotes H, F, Cl, Br, CF3 or a linear or branched alkyl group having 1-20 carbon atoms, and the other one of R and R? denotes a linear or branched alkyl group having 3-20 carbon atoms, said alkyl groups being independently capable of including one methylene group which can be replaced with —O—, —S—, —CH?CH— or —C?C— so long as heteroatoms are not adjacent to each other.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 26, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Shinjiro Okada, Akira Tsuboyama, Takashi Moriyama
  • Metal coordination compound and electroluminescence device
    Publication number: 20050085654
    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: Application
    Filed: September 17, 2004
    Publication date: April 21, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takao Takiguchi, Akira Tsuboyama, Shinjiro Okada, Jun Kamatani, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Manabu Furugori, Hidemasa Mizutani
  • Metal coordination compound, luminescence device and display apparatus
    Patent number: 6869694
    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 CyC1 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: Grant
    Filed: March 12, 2002
    Date of Patent: March 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Shinjiro Okada, Akira Tsuboyama, Seishi Miura, Takashi Moriyama, Jun Kamatani, Manabu Furugori
  • Conductive liquid crystal device and organic electroluminescence device
    Patent number: 6870583
    Abstract: A conductive liquid crystal device capable of exhibiting luminescence of different luminances at an identical drive voltage, thus useful as an EL device having a memory chacteristic, is provided. The conductive liquid crystal device is formed by a pair of oppositely disposed electrodes and a liquid crystalline organic layer disposed between the electrodes, wherein the liquid crystalline organic layer has plural regions having different electroconductivities.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: March 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Takashi Moriyama
  • Organic electroluminescence device
    Publication number: 20050052125
    Abstract: A luminescence device is constituted by a substrate, a first electrode disposed on the substrate, at least one organic luminescence function layer disposed on the first electrode, a second electrode disposed on the above at least one organic luminescence function layer, and an oxygen absorbent disposed between the substrate and the second electrode or between the first and second electrodes. To the luminescence device, a voltage is applied between the first and second electrodes to cause phosphorescence from at last one layer constituting the above-mentioned at least one organic luminescence function layer preferably containing the oxygen absorbent. The oxygen absorbent may be formed in a layer disposed at a region other than pixel portions.
    Type: Application
    Filed: October 15, 2004
    Publication date: March 10, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takashi Moriyama, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Koji Noguchi, Jun Kamatani, Manabu Furugori
  • Snowmobile power steering system
    Publication number: 20050039961
    Abstract: A snowmobile comprises a frame assembly. An internal combustion engine is mounted to the frame assembly. A steering assembly is mounted to the frame assembly. The steering assembly comprises a steering shaft having a first portion and a second portion. The first portion of the steering shaft is coupled to a steering input mechanism. The second portion of the steering shaft is coupled to a power steering device. The power steering device is coupled to a steering linkage. The steering linkage is coupled to a steering ski.
    Type: Application
    Filed: August 6, 2004
    Publication date: February 24, 2005
    Inventor: Takashi Moriyama
  • Conductive organic compound device, conductive liquid crystal device, and organic electroluminescence device
    Patent number: 6858271
    Abstract: A conductive organic compound device structure suitable for constituting an electronic device, such as an organic EL device, is formed by including a pair of oppositely spaced electrodes, and a carrier transporting layer disposed between the electrodes and in contact with one of the electrodes. The carrier transporting layer comprises a conductive organic compound having a ?-electron resonance structure in its molecule. In the device, the ?-electron resonance structure plane of the conductive organic compound in the carrier transporting layer is aligned substantially parallel to surfaces of the electrodes. The conductive organic compound is preferably a conductive liquid crystal, such as a discotic liquid crystal or a smectic liquid crystal, and a layer thereof is included in the device, preferably by vacuum deposition.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: February 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinjiro Okada, Akira Tsuboyama, Naoya Nishida, Takashi Moriyama
  • Light emitting device having dopant in a light emitting layer, and method of producing the light emitting device
    Publication number: 20050035707
    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: Application
    Filed: September 20, 2004
    Publication date: February 17, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Manabu Furugori, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Hironobu Iwawaki
  • Organic light emitting device
    Publication number: 20050037236
    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: Application
    Filed: September 23, 2004
    Publication date: February 17, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Manabu Furugori, Hironobu Iwawaki
  • Organic electroluminescent device and display apparatus
    Publication number: 20050023971
    Abstract: The present invention realizes measures for antireflection in various ways in an organic electroluminescent device, and provides a high performance organic electroluminescent device. The organic electroluminescent device includes an organic compound layer containing luminescent sections, the organic compound layer being placed between substantially transparent electrodes; and an insulating light absorption layer in contact with first electrodes, the light absorption layer being placed between the substrate and the first electrodes.
    Type: Application
    Filed: August 24, 2004
    Publication date: February 3, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Manabu Furugori, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Jun Kamatani