Patents by Inventor Yoshiyuki Takahashi

Yoshiyuki Takahashi 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: 7540146
    Abstract: Cylinder heads are each provided with a fuel injection valve, and an addition nozzle for adding fuel for activating an exhaust purifying catalyst to an exhaust manifold. There exists a non-exhaust period in which an exhaust gas does not flow out to exhaust passages from the exhaust manifolds during an operation of an engine. An ECU controls the addition nozzles in such a manner that the addition nozzles execute a fuel addition during periods except the non-exhaust period. Accordingly, the fuel added to the exhaust manifolds for activating the catalysts is avoided from collecting on a wall surface of an exhaust system without getting on an exhaust stream.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 2, 2009
    Assignees: Kabushiki Kaisha Toyotal Jidoshokki, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Kenji Kawai, Hisanobu Suzuki, Yoshitaka Nakamura
  • Publication number: 20090080687
    Abstract: A loudspeaker of high sound quality is achieved by improving rigidity of a material used for a diaphragm, a dust cap and a sub-cone. The diaphragm, the dust cap and the sub-cone of the loudspeaker are made of a paper beaten with the material containing bamboo fibers obtained from a bamboo tree aged one year or older, of which the fibers are finely beaten to an extent of micro-fibrillated form. The diaphragm and the dust cap are also made with a beaten paper containing at least 2 wt % of “A fibers” having stems of no greater than 30 ?m in diameter, and surfaces of the stems are fibrillated into shaggy branches having diameters of 1 ?m or less.
    Type: Application
    Filed: February 9, 2007
    Publication date: March 26, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuyoshi Mimura, Shinya Mizone, Kenichi Ajiki, Masahide Sumiyama, Toru Fujii, Yoshiyuki Takahashi, Nobuo Nakamura, Toshihiro Shimizu, Hitoshi Satou
  • Publication number: 20090054585
    Abstract: The object of the present invention is to provide an epoxy resin composition capable of realizing low dielectric constant and low dielectric dissipation factor, which is suited for use as a latest current high-frequency type electronic component-related material, without deteriorating heat resistance during the curing reaction. A phenol resin, which has the respective structural units of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P) derived from phenols, an alkoxy group-containing condensed polycyclic aromatic hydrocarbon group (B) derived from methoxynaphthalene and a divalent hydrocarbon group (X) such as methylene and also has a structure represented by —P—B—X— wherein P, B and X are structural sites of these groups in a molecular structure, is used as a curing agent for the epoxy resin, or a phenol resin as an epoxy resin material.
    Type: Application
    Filed: March 1, 2006
    Publication date: February 26, 2009
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Ichirou Ogura, Yoshiyuki Takahashi, Yutaka Sato
  • Patent number: 7448205
    Abstract: Catalysts are respectively provided in a plurality of parallel exhaust paths of an internal combustion engine. A flow rate adjusting section adjusts a flow rate of an exhaust gas discharged from a first exhaust path to a downstream side, and a flow rate of an exhaust gas supplied to an intake path from the first exhaust path via a first exhaust gas recirculating path. A control section controls the flow rate adjusting section in such a manner that a ratio of the flow rate of the exhaust gas discharged from the first exhaust path with respect to the flow rate of the exhaust gas discharged from the other exhaust paths than the first exhaust path becomes smaller in the case that a temperature of the catalyst exists in a preset low temperature region than in other cases. Accordingly, it is possible to achieve an early activation in at least one of a plurality of catalysts while avoiding an addition of mechanisms.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: November 11, 2008
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiyuki Takahashi, Hisanobu Suzuki
  • Patent number: 7450299
    Abstract: The light of a broad energy band can be observed by reflecting the light of the broad energy band, for example, the light from the visible light region to the x-ray region at a high reflectance respectively, by a composite telescope including a normal incidence optical system and an oblique incidence optical system. A broadband telescope comprise an oblique incidence optical system unit in which the light is obliquely incident on a surface part for reflecting the incident light, a normal incidence optical system unit in which the light is substantially vertically incident on a surface part for reflecting the incident light, and an analyzer for spectrum analysis of the light reflected by the surface part of the obliquely incidence optical system unit and the light reflected by the surface part of the normal incidence optical system unit.
    Type: Grant
    Filed: December 25, 2002
    Date of Patent: November 11, 2008
    Assignee: Riken
    Inventors: Yoshiyuki Takizawa, Yoshiyuki Takahashi, Hirohiko Shimizu, Chiko Otani, Toshikazu Ebisuzaki
  • Publication number: 20080255315
    Abstract: An epoxy resin composition including an epoxy resin and a curing agent as essential components, in which the curing agent comprises a phenol resin which has each structural moiety of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P), an alkoxy group-containing aromatic hydrocarbon group (B) and a divalent aralkyl group (X), and also has, in a molecular structure, a structure in which the phenolic hydroxyl group-containing aromatic hydrocarbon group (P) and the alkoxy group-containing aromatic hydrocarbon group (B) are bonded with the other phenolic hydroxyl group-containing aromatic hydrocarbon group (P) or alkoxy group-containing aromatic hydrocarbon group (B) via the divalent aralkyl group (X).
    Type: Application
    Filed: August 31, 2005
    Publication date: October 16, 2008
    Applicant: Dainippon Ink and Chemicals, Inc.
    Inventors: Ichiro Ogura, Yoshiyuki Takahashi, Kazuo Arita, Kunihiro Morinaga, Yutaka Satou
  • Publication number: 20080250721
    Abstract: Disclosed is a foam-molded member having a skin with which peeling or floating does not occur when the skin is wrapped. Also disclosed is a method of manufacturing the foam-molded member having a skin. A foam-molded member having a skin, such as a door trim, includes a core, a skin, foam and a fixing member. The core can be folded at a folding portion, and the skin faces the core. The foam is filled in a space between the core and the skin. The fixing member fixes the core that is integrally formed with the skin and the foam and is folded at the folding portion. The core is divided into a body portion and an extension portion, with the folding portion serving as a boundary. The extension portion folded at the folding portion is fixed to the body portion by the fixing member.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kazutaka Hayakawa, Takeshi Yoshida, Yoshiyuki Takahashi, Fumio Saito, Kenichi Ochiai
  • Patent number: 7360356
    Abstract: A main control computer commands a second sub-control computer to perform a reduced-cylinder operation when the coolant temperature detected by a coolant temperature sensor is greater than or equal to a reference temperature, and the exhaust temperature detected by a temperature sensor is less than a reference exhaust temperature and is within a reduced-cylinder operation allowable range in which a combination of the engine speed and the engine load is set in advance. The second sub-control computer deactivates a second cylinder group based on a command of the reduced-cylinder operation.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: April 22, 2008
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Hisanobu Suzuki
  • Patent number: 7353102
    Abstract: An internal combustion engine includes parallel first and second intake passages, and the intake passages respectively include first and second superchargers. A first airflow meter measures the intake air amount in the first intake passage. A second airflow meter measures the intake air amount in the second intake passage. An ECU obtains an air amount difference between the intake air amount measured by the first airflow meter and the intake air amount measured by the second airflow meter to compare the obtained air amount difference with a predetermined abnormality determination value. The ECU determines that an abnormality has occurred in one of the superchargers when the air amount difference exceeds the abnormality determination value. The abnormality determination of the superchargers is based on the air amount difference between the intake passages. This accurately determines the occurrence of an abnormality in the superchargers regardless of structure of the intake passages.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: April 1, 2008
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Takeshi Imai, Hisanobu Suzuki
  • Publication number: 20080047528
    Abstract: A preset waiting period is previously set on the basis of a signal in correspondence to a detection of a start point of a detection of a no-tooth portion of a signal rotor. In the case of a control for injecting a fuel after the preset waiting period has elapsed, an output of a signal indicating a start point of an actual detection of the no-tooth portion by a waveform shaping portion is delayed due to the existence of the no-tooth portion. A control computer corrects the preset waiting period to be shorter by an amount corresponding the delay. Accordingly, an accuracy of a fuel injection start timing control is improved.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Inventors: Yoshiyuki Takahashi, Yuji Narita, Hisanobu Suzuki
  • Patent number: 7312177
    Abstract: A thermosensitive recording material comprising a substrate sheet and a thermosensitive colored image-forming layer formed on at least one surface of the substrate sheet and comprising at least one colorless or light-colored dye precursor and a color-developing agent reactive with the dye precursor upon heating to thereby develop a color, wherein the color-developing agent comprises at least one compound of the formula (I): (wherein R1 represents a member selected from the group consisting of unsubstituted aromatic hydrocarbon groups and substituted aromatic hydrocarbon groups with at least one substituent selected from the group consisting of a methyl group and a chlorine atom, and R2 represents a divalent organic group).
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: December 25, 2007
    Assignee: Oji Paper Co., Ltd.
    Inventors: Ayako Shirai, Yoshiyuki Takahashi
  • Publication number: 20070193564
    Abstract: Catalysts are respectively provided in a plurality of parallel exhaust paths of an internal combustion engine. A flow rate adjusting section adjusts a flow rate of an exhaust gas discharged from a first exhaust path to a downstream side, and a flow rate of an exhaust gas supplied to an intake path from the first exhaust path via a first exhaust gas recirculating path. A control section controls the flow rate adjusting section in such a manner that a ratio of the flow rate of the exhaust gas discharged from the first exhaust path with respect to the flow rate of the exhaust gas discharged from the other exhaust paths than the first exhaust path becomes smaller in the case that a temperature of the catalyst exists in a preset low temperature region than in other cases. Accordingly, it is possible to achieve an early activation in at least one of a plurality of catalysts while avoiding an addition of mechanisms.
    Type: Application
    Filed: March 23, 2005
    Publication date: August 23, 2007
    Applicant: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yoshiyuki Takahashi, Hisanobu Suzuki
  • Publication number: 20070172397
    Abstract: Collectors are provided on a pair of exhaust passages extending in parallel from an internal combustion engine respectively. Each of the collectors collects black smoke particles (unclean substance) included in exhaust gas. One of a pair of differential pressure detectors detects a first differential pressure between upstream and downstream of one of the collectors while the other differential pressure detector detects a second differential pressure between upstream and downstream of the other collector. Upon finishing a regeneration process of removing the black smoke particles in each of the collectors, a control computer estimates an exhaust gas flow rate of each of the exhaust passages based on the first differential pressure and the second differential pressure.
    Type: Application
    Filed: February 14, 2005
    Publication date: July 26, 2007
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Takeshi Imai, Hisanobu Suzuki, Yoshitaka Nakamura
  • Publication number: 20070163258
    Abstract: An internal combustion engine includes parallel first and second intake passages, and the intake passages respectively include first and second superchargers. A first airflow meter measures the intake air amount in the first intake passage. A second airflow meter measures the intake air amount in the second intake passage. An ECU obtains an air amount difference between the intake air amount measured by the first airflow meter and the intake air amount measured by the second airflow meter to compare the obtained air amount difference with a predetermined abnormality determination value. The ECU determines that an abnormality has occurred in one of the superchargers when the air amount difference exceeds the abnormality determination value. The abnormality determination of the superchargers is based on the air amount difference between the intake passages. This accurately determines the occurrence of an abnormality in the superchargers regardless of structure of the intake passages.
    Type: Application
    Filed: April 28, 2005
    Publication date: July 19, 2007
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Takeshi Imai, Hisanobu Suzuki
  • Publication number: 20070148353
    Abstract: A screen printing ink includes micelle structural particles formed by aggregating molecules of ammonium acrylate to dispersed particles containing phenol resin, and a dispersion medium for dispersing the micelle structural particle.
    Type: Application
    Filed: April 8, 2005
    Publication date: June 28, 2007
    Inventors: Shinya Mizone, Yoshiyuki Takahashi, Yukio Sone, Keiji Okuda
  • Publication number: 20070116924
    Abstract: [OBJECTS] To provide an elastic strip material that has a cross-sectional shape suited to intended uses such as seals or cushions, as well as a method of and an apparatus for mass-producing the strip material efficiently and inexpensively. [MEANS FOR ACHIEVING THE OBJECTS] A heat setting composition is used whose main ingredients are a polyurethane prepolymer and a latent solidifier obtained by deactivating a solid polyamine. A compressed gas is dispersed throughout the composition to give a fluid mixture ‘a’, that is then foamed and heated to or above a critical temperature to solidify as the strip material. The fluid mixture ‘a’ is extruded from an extruder (1), guided into a liquid or gaseous heating zone (2), caused to solidify during travel within the zone, and shaped at the same time into a desired configuration before discharged from the zone (2).
    Type: Application
    Filed: December 13, 2004
    Publication date: May 24, 2007
    Inventors: Shinya Mizone, Yoshiyuki Takahashi, Satoshi Tanaka, Toshiyuki Toumura
  • Publication number: 20070079607
    Abstract: An internal combustion engine has a separate exhaust passage for each one of banks. An exhaust purifying catalyst is provided in each exhaust passage. The mass flow rates G1, G2 of exhaust gas that flow through the exhaust passages are individually estimated. The flow rate of exhaust gas is individually adjusted per each bank by controlling the operation of each one of exhaust gas recirculation valves such that the difference between the estimated mass flow rates G1, G2 is decreased.
    Type: Application
    Filed: March 14, 2005
    Publication date: April 12, 2007
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Hisanobu Suzuki, Yoshitaka Nakamura, Yoshiyuki Takahashi, Yuzuru Ikeda, Shinichi Kusakabe, Tadashi Toyota
  • Publication number: 20070022745
    Abstract: Cylinder heads are each provided with a fuel injection valve, and an addition nozzle for adding fuel for activating an exhaust purifying catalyst to an exhaust manifold. There exists a non-exhaust period in which an exhaust gas does not flow out to exhaust passages from the exhaust manifolds during an operation of an engine. An ECU controls the addition nozzles in such a manner that the addition nozzles execute a fuel addition during periods except the non-exhaust period. Accordingly, the fuel added to the exhaust manifolds for activating the catalysts is avoided from collecting on a wall surface of an exhaust system without getting on an exhaust stream.
    Type: Application
    Filed: July 14, 2006
    Publication date: February 1, 2007
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Kenji Kawai, Hisanobu Suzuki, Yoshitaka Nakamura
  • Publication number: 20060218899
    Abstract: A main control computer commands a second sub-control computer to perform a reduced-cylinder operation when the coolant temperature detected by a coolant temperature sensor is greater than or equal to a reference temperature, and the exhaust temperature detected by a temperature sensor is less than a reference exhaust temperature and is within a reduced-cylinder operation allowable range in which a combination of the engine speed and the engine load is set in advance. The second sub-control computer deactivates a second cylinder group based on a command of the reduced-cylinder operation.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 5, 2006
    Inventors: Yuji Narita, Yoshiyuki Takahashi, Hisanobu Suzuki
  • Patent number: 7107761
    Abstract: An exhaust control apparatus applied to an internal combustion engine in which intake sides of a plurality of cylinder groups are connected to a common intake passage and exhaust sides thereof are connected to different exhaust passages, comprises an exhaust gas flow amount adjusting device for causing a flow amount of exhaust gas, which is discharged through each of the exhaust passages of the cylinder groups, to be changed, an exhaust gas flow amount difference estimating device for estimating a difference in an exhaust gas flow amount between the exhaust passages of the cylinder groups, and an exhaust gas flow amount control device for controlling the exhaust gas flow amount adjusting device so as to reduce the estimated difference in the exhaust gas flow amount.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: September 19, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takao Fukuma, Yoshiyuki Takahashi