Patents by Inventor Yoshifumi Kato
Yoshifumi Kato 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).
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Publication number: 20090151340Abstract: An exhaust gas purification device has an injector and a wall-flow type honeycomb support. The injector supplies fuel to the honeycomb support. The honeycomb support has a plurality of porous walls separating a plurality of inlet cells and a plurality of outlet cells. The exhaust gas flowing into the inlet cells flows through the porous walls into the outlet cells. Each porous wall has an upstream surface facing the inlet cell and a downstream surface facing the outlet cell. An upstream catalytic layer is formed on the upstream surface and a downstream catalytic layer is formed on the downstream surface. One of the upstream catalytic layer and the downstream catalytic layer is composed of a fuel reforming catalyst whose function is to reform the fuel to generate a reducing agent, and the other of the upstream catalytic layer and the downstream catalytic layer has a catalytic function which is different from the function of the fuel reforming catalyst.Type: ApplicationFiled: December 9, 2008Publication date: June 18, 2009Inventor: Yoshifumi Kato
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Publication number: 20090145108Abstract: An exhaust gas purifying system is used for purifying exhaust gas discharged from an internal combustion engine installed in a vehicle. The exhaust gas purifying system includes an electrochemical device and a control device. The electrochemical device includes an anode, a cathode and an electrolyte layer disposed between the anode and the cathode. The control device is operable to control the internal combustion engine and the electrochemical device. The control device receives data on condition of the internal combustion engine and controls amount of electric current to be supplied to the electrochemical device based on the data. The data represents amount of exhaust gas. When the control device recognizes that the amount of exhaust gas is increased, the control device increases the amount of electric current to be supplied to the electrochemical device.Type: ApplicationFiled: December 2, 2008Publication date: June 11, 2009Inventors: Naotaka KOIDE, Nami IKEDA, Hiroyasu KAWAUCHI, Yoshifumi KATO
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Publication number: 20090120075Abstract: An exhaust gas purifying system removes particulate matter from exhaust gas from an engine through an exhaust passage. The system includes a filter, a reforming catalyst, an injector, and a heat transfer member. The filter is provided in the exhaust passage and collects the particulate matter in the exhaust gas. The reforming catalyst is provided in the exhaust passage and generates the heat of reaction by reforming fuel. The injector supplies the fuel to the reforming catalyst. The heat transfer member is in directly contact with the filter and the reforming catalyst to transfer the heat therebetween.Type: ApplicationFiled: October 28, 2008Publication date: May 14, 2009Inventor: Yoshifumi Kato
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Patent number: 7511422Abstract: An organic electroluminescent element includes a plurality of luminescent regions. Each luminescent region has a first electrode that is transparent and a second electrode. Each luminescent region has an organic layer that is sandwiched between the first electrode and the second electrode for emitting light. The first electrodes are physically adjacently located. An insulation portion is provided between each of the first electrodes. The plurality of luminescent regions are electrically and serially connected.Type: GrantFiled: September 30, 2004Date of Patent: March 31, 2009Assignee: Kabushiki Kaisha Toyota JidoshokkiInventor: Yoshifumi Kato
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Publication number: 20090043495Abstract: An apparatus corrects a position coordinate measured by a GPS receiver. Road data representing a position coordinate of a constructed road is included. Locus data representing a plurality of position coordinates of the GPS receiver during a past specified period is generated based on a position coordinate acquired. A road section traveled by the GPS receiver during the past specified period is estimated based on road data stored and a position coordinate acquired. A bias error of a position coordinate measured by the GPS receiver is estimated based on position coordinates at a plurality of points in a road section estimated and position coordinates at a plurality of points represented by the locus data. A position coordinate measured by the GPS receiver is corrected based on a bias error estimated and outputted.Type: ApplicationFiled: August 4, 2008Publication date: February 12, 2009Applicant: DENSO CORPORATIONInventors: Yousuke Hattori, Minoru Okada, Masahiro Goto, Hiroshi Inou, Yoshifumi Kato
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Patent number: 7433000Abstract: A lighting system and a display are capable of efficiently using light emitted by a light emitting element. The lighting system and the display according to the present invention include prisms located in an electroluminescent layer, which functions as the light emitting element. Each prism reflects or refracts light incident to the prism such that light emitted by the electroluminescent layer reaches an interface between the electroluminescent layer and a transparent electrode at an angle that is less than the critical angle at the interface.Type: GrantFiled: July 3, 2003Date of Patent: October 7, 2008Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Yoshifumi Kato, Kazuto Noritake
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Patent number: 7397178Abstract: A luminescence cell having a novel structure includes a transparent conductor having a surface on which first and second regions are defined. A first electroluminescence element, including a first organic layer containing an organic luminescence material and a first electrode laminated on the first organic layer, is arranged on the first region. A second electroluminescence element, including a second organic layer containing an organic luminescence material and a second electrode laminated on the second organic layer, is arranged on the second region. The first electrode is physically separated from the second electrode. The first layer is physically separated from the second layer. The first and second organic layers emit light when current flows between the first and second electrodes. The light emitted from the organic layer passes through the transparent conductor and exits the luminescence cell.Type: GrantFiled: November 24, 2004Date of Patent: July 8, 2008Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Hironori Ito, Yoshifumi Kato, Tetsuya Utsumi, Norihito Takeuchi
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Patent number: 7338720Abstract: An organic electroluminescent (EL) device which uses, as a luminescence-assisting agent, a novel coumarin derivative with a specific structure. The coumarin derivative effectively accelerates in such an organic EL device the transfer of excited energy in a host compound to a guest compound. Thus, the coumarin derivative affords the organic EL device which is superior in a color purity, luminescent efficiency and life expectancy when used in combination with appropriate host and guest compounds.Type: GrantFiled: April 23, 2002Date of Patent: March 4, 2008Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Makoto Satsuki, Natsuko Ishida, Sadaharu Suga, Hisayoshi Fujikawa, Yasunori Taga, Satoshi Nakagawa, Takanori Murasaki, Yoshifumi Kato
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Patent number: 7283186Abstract: A liquid crystal display includes a liquid crystal panel, which has a plurality of pixel rows, and a backlight located at the rear of the liquid crystal panel. The backlight includes a plurality of thin-film organic electroluminescent elements. Each organic electroluminescent element flashes independently from the other organic electroluminescent elements. Each electroluminescent element corresponds to one of the pixel rows and radiates light toward the corresponding pixel row. This structure reduces thickness and power consumption of the liquid crystal display.Type: GrantFiled: January 31, 2003Date of Patent: October 16, 2007Assignee: Kabushiki Kaisha Toyota JidoshokkiInventor: Yoshifumi Kato
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Publication number: 20070210700Abstract: An organic EL element that is an electroluminescence element has at least an organic layer held between a pair of electrodes. At least an electrode made of material having a higher volume resistivity, of the pair of electrodes, is formed in a flat form. The organic layer is provided with a plurality of non-light emitting portions. The non-light emitting portions are provided so that a larger number of non-light emitting portions exist per unit area at a position physically closer to the position of a terminal portion at which the electrode made of material having the higher volume resistivity is connected to an external connection terminal. As a result, the level of current passing per unit area is substantially uniform at each position on the element.Type: ApplicationFiled: July 26, 2004Publication date: September 13, 2007Inventors: Yoshifumi Kato, Norihito Takeuchi, Hiroyasu Kawauchi, Haruyuki Ishikawa, Hiroyuki Miura
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Publication number: 20070188082Abstract: A liquid crystal display including a liquid crystal panel and an organic EL device, which functions as a backlight. The organic EL device includes a Peltier element, which functions as a substrate, and an organic EL element formed on the Peltier element. The organic EL element includes an organic EL layer and first and second electrodes, which sandwich the organic EL layer. The first electrode is shared with a metal layer, which is a heat absorbing electrode of the Peltier element. The second electrode is formed from ITO, which transmits visible light. Light emitted from the organic EL element exits from the second electrode. As a result, the organic EL device is thin and has a superior cooling effect.Type: ApplicationFiled: February 15, 2007Publication date: August 16, 2007Inventors: Yoshifumi Kato, Tadahiro Ohmi, Shigetoshi Sugawa, Akihiro Morimoto
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Publication number: 20070188093Abstract: An organic electroluminescent display panel includes a substrate, a plurality of first electrodes forming parallel stripes on the substrate, a plurality of electrical insulating partitions intersecting the first electrodes, an organic electroluminescent layer formed on the first electrodes and the partitions, a plurality of second electrodes located on the organic electroluminescent layer, and a sealing film. The second electrodes form stripes parallel with the partitions. An organic electroluminescent element is formed at each intersection of the first and second electrodes. The sealing film covers exposed portions of the first electrodes, the organic electroluminescent layer, the partitions, and the second electrodes. Each partition has an inverse tapered portion with a widened distal end.Type: ApplicationFiled: February 16, 2007Publication date: August 16, 2007Inventors: Yoshiaki Nagara, Kazunori Kitamura, Yoshifumi Fujita, Hiromu Iwata, Takeshi Yamaguchi, Yoshifumi Kato
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Patent number: 7239361Abstract: A display includes a display surface, an electroluminescent panel, which has a plurality of electroluminescent elements, and a liquid crystal panel, which has a plurality of liquid crystal elements. The liquid crystal panel and the electroluminescent panel overlaps each other in the front and rear direction of the display. The electroluminescent elements and the liquid crystal elements are aligned with each other in the front and rear direction of the display. In the display, at least one of the electroluminescent elements and the liquid crystal elements function as pixels to show an image on the display surface. Therefore, the display can show an image in the appropriate manner in accordance with an environment.Type: GrantFiled: November 7, 2005Date of Patent: July 3, 2007Assignee: Kabushiki Kaisha Toyota JidoshokkiInventor: Yoshifumi Kato
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Patent number: 7239084Abstract: A liquid crystal display including a liquid crystal panel and an organic EL device, which functions as a backlight. The organic EL device includes a Peltier element, which functions as a substrate, and an organic EL element formed on the Peltier element. The organic EL element includes an organic EL layer and first and second electrodes, which sandwich the organic EL layer. The first electrode is shared with a metal layer, which is a heat absorbing electrode of the Peltier element. The second electrode is formed from ITO, which transmits visible light. Light emitted from the organic EL element exits from the second electrode. As a result, the organic EL device is thin and has a superior cooling effect.Type: GrantFiled: March 25, 2004Date of Patent: July 3, 2007Assignees: Kabushiki Kaisha Toyota JidoshokkiInventors: Yoshifumi Kato, Tadahiro Ohmi, Shigetoshi Sugawa, Akihiro Morimoto
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Patent number: 7235921Abstract: An organic electroluminescent element has a first electrode, a second electrode and an organic electroluminescent layer. The first electrode has a first luminescent region and a first terminal extending from the first luminescent region. The second electrode has a second luminescent region and a second terminal extending from the second luminescent region. The first electrode is made of a material having a higher volume resistivity than the second electrode. The organic electroluminescent layer is interposed between the first electrode and the second electrode. The first luminescent region and the second luminescent region respectively contact the organic electroluminescent layer. A length of a boundary between the first luminescent region and the first terminal is greater than a length of a boundary between the second luminescent region and the second terminal.Type: GrantFiled: August 25, 2004Date of Patent: June 26, 2007Assignee: Kabushiki Kaisha Toyota JiboshokkiInventors: Masato Hieda, Kentaro Yamashita, Masayuki Harada, Hironori Ito, Yoshifumi Kato
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Patent number: 7196466Abstract: An electrode of the organic EL device includes a substantially rectangular electrode region that contacts an organic layer, a terminal section to which an external drive circuit is connected, and a conductive section that electrically connects the terminal section to the electrode region. The conductive section includes a first joint connected to the terminal section, a second joint connected to the outer periphery of the electrode region, and a conductive section main body that extends between the first joint and the second joint to electrically connect the first joint to the second joint. Therefore, the difference of magnitude between currents flowing at respective positions in a luminous region in the organic EL device is lessened.Type: GrantFiled: August 25, 2004Date of Patent: March 27, 2007Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Masato Hieda, Kentaro Yamashita, Yoshifumi Kato, Mitsuharu Muta
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Patent number: 7193362Abstract: A luminescent device for reducing unevenness of brightness. The luminescent device includes a transparent substrate, which has a light exit surface and an incident surface, and a luminescent element, which is formed on the incident surface of the transparent substrate. The luminescent element includes a transparent electrode formed on the incident surface of the transparent substrate, an auxiliary electrode formed on a part of the transparent electrode, and a thin-film layer, which is formed on the transparent electrode, for emitting light. The transparent substrate includes a projection formed on the light exit surface.Type: GrantFiled: June 3, 2004Date of Patent: March 20, 2007Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Yoshifumi Kato, Masato Hieda, Mitsuhara Muta
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Patent number: 7132791Abstract: An organic electroluminescence display. The display comprises a transparent electrode, a metal electrode and a organic thin layer which is disposed between the pair of electrodes and which includes a light emitting layer. The metal electrode has a reflection scattering property. Since the metal electrode has a reflection scattering property, the ambient light is reflected in various directions so that the reflected light returns and is incident on the color filter. In this way, within the incident light due to reflection scattering on any of the filter regions that has a different color from that of light already transmitted through the filter regions, light with different wavelength from that of the incident light is attenuated. Accordingly, the reflection of the ambient light is further attenuated.Type: GrantFiled: April 9, 2004Date of Patent: November 7, 2006Assignee: Kabushiki Kaisha Toyota JidoshokkiInventor: Yoshifumi Kato
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Publication number: 20060214553Abstract: The present invention provides organic EL devices which have on their anode at least a light-emitting layer, an electron-injecting-transporting layer, and a cathode giving an elongated lifetime, organic EL devices giving a superior whiteness, a higher light-emitting efficiency, and an elongated lifetime compared to conventional ones, and color displays using such organic EL devices. On anode (10), hole-injecting-transporting layer (11), light-emitting layer (12), non-light-emitting layer (13), electron-injecting-transporting layer (14), and cathode (15) in this order are laminated. Otherwise, on an anode, a hole-injecting layer, a hole-transporting layer, a red light-emitting layer, a blue light-emitting layer, an electron-transporting layer, an electron-injecting layer, and a cathode in this order are laminated.Type: ApplicationFiled: February 27, 2004Publication date: September 28, 2006Inventors: Yoshiaki Nagara, Takanori Murasaki, Kenji Mori, Ichiro Yamamoto, Yoshifumi Kato, Shintaro Kawasaki, Kazuyoshi Takeuchi
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Patent number: 7109649Abstract: An organic light emitting diode color display unit has a substrate, an organic electroluminescent device formed on the substrate, a transparent cover plate disposed opposite to the substrate and a color filter element formed on the transparent cover plate. The organic electroluminescent device includes an electroluminescent zone comprising a thin film of an organic electroluminescent material. The color filter element is spaced from the organic electroluminescent device and associated with the organic electroluminescent device. Light from the organic electroluminescent device is emitted from the transparent cover plate.Type: GrantFiled: January 30, 2003Date of Patent: September 19, 2006Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Yoshifumi Kato, Kazuyoshi Takeuchi, Ichiro Yamamoto