Patents by Inventor Takashi Katsumata

Takashi Katsumata 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).

  • Publication number: 20130000404
    Abstract: An angular velocity sensor includes a vibrator, a support substrate, an anchor section, a connection beam section, a driving section, and a detection section. The vibrator includes an inner vibrator and an outer vibrator, which vibrate in opposite circumferential directions when driven by the driving section. The connection beam section couples the vibrator to the anchor section, and is elastic in a z-direction and a circumferential direction. The connection beam section includes first connection beams, each of which is coupled to the outer vibrator at one end and is coupled to the inner vibrator at the other end, and second connection beams, each of which is coupled to a vibration node of a corresponding first connection beam at one end and is coupled to the anchor section at the other end.
    Type: Application
    Filed: June 25, 2012
    Publication date: January 3, 2013
    Applicant: DENSO CORPORATION
    Inventors: Takashi KATSUMATA, Hirofumi HIGUCHI
  • Patent number: 8225660
    Abstract: A dynamic quantity sensor includes a sensor chip, a base member, and bumps. The sensor chip includes a semiconductor substrate, a sensor part, and sensor pads electrically coupled with the sensor part. The base member includes a base substrate and base pads disposed on the base substrate. The bumps mechanically and electrically couple the sensor pads and the base pads, respectively, in a state where the sensor chip is curved with respect to the base member. The sensor pads include input pads and output pads. The first surface of the semiconductor substrate includes a first portion and a second portion. The first portion is closer to the base substrate than the second portion is. At least one of the input pads is disposed on the first portion and at least one of the output pads is disposed on the second portion.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: July 24, 2012
    Assignee: DENSO CORPORATION
    Inventors: Minekazu Sakai, Takashi Katsumata, Yoshiaki Murakami
  • Publication number: 20110271759
    Abstract: In an angular velocity sensor, a vibrator is coupled with a substrate through a beam part, and is movable in a first direction and a second direction that is perpendicular to the first direction. A driving part is configured to vibrate the vibrator in the first direction. A detecting part is configured to detect displacement of the vibrator in the second direction as a change in capacitance, the displacement being caused by Coriolis force generated in the vibrator due to vibration of the vibrator and an angular velocity around a third direction that is perpendicular to the first direction and the second direction. A restricting part is configured to restrict displacement of the vibrator in the second direction based on the change in capacitance. The angular velocity sensor is configured to satisfy a condition where ? sin ? is equal to or less than 1.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 10, 2011
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Minekazu SAKAI, Tomoya Jomori, Takashi Katsumata
  • Patent number: 8013403
    Abstract: A miniaturized sensor such as a micro-accelerometer includes a sensor chip having a sensor element mounted thereon, with the sensor element being oriented with its central axes passing through the corners of the sensor chip. The corners of the sensor element are thereby located substantially apart from the corners of the sensor chip, so that bending deformation which displaces corners of the sensor chip is substantially prevented from causing displacement of corners of the sensor element. Detection inaccuracy resulting from such displacement can thereby be prevented or reduced.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: September 6, 2011
    Assignee: DENSO CORPORATION
    Inventors: Takashi Katsumata, Masaki Takashima, Mikio Sugiki
  • Patent number: 7959092
    Abstract: A coating machine enables the inside of a paint chamber to be washed clean with less amount of use of thinner by increasing washing efficiency and is capable of forming a coating with uniform coating thickness by always uniformly jetting a paint over 360° about a rotary atomizing head and the rotary atomizing head of the coating machine. The coating machine includes the rotary atomizing head in which the paint chamber is formed in the clearance between an outer bell fitted to the tip of a tubular rotating shaft and an inner bell fitted to the front side of the outer bell. Fins agitating, in the paint chamber, a washing fluid supplied from a thin tubular nozzle inserted into the tubular rotating shaft are radially formed on the rear surface side of the inner bell. An annular paint groove temporarily accumulating the paint is formed in the inner surface of the rim part of the outer bell on which the paint jetted from the paint jetting holes formed at the peripheral surface part of the paint chamber is extended.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: June 14, 2011
    Assignee: Trinity Industrial Corporation
    Inventors: Takao Nomura, Shigeyoshi Inada, Takashi Katsumata, Satoshi Takeda
  • Publication number: 20100307242
    Abstract: A dynamic quantity sensor includes a sensor chip, a base member, and bumps. The sensor chip includes a semiconductor substrate, a sensor part, and sensor pads electrically coupled with the sensor part. The base member includes a base substrate and base pads disposed on the base substrate. The bumps mechanically and electrically couple the sensor pads and the base pads, respectively, in a state where the sensor chip is curved with respect to the base member. The sensor pads include input pads and output pads. The first surface of the semiconductor substrate includes a first portion and a second portion. The first portion is closer to the base substrate than the second portion is. At least one of the input pads is disposed on the first portion and at least one of the output pads is disposed on the second portion.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 9, 2010
    Applicant: DENSO CORPORATION
    Inventors: Minekazu SAKAI, Takashi KATSUMATA, Yoshiaki MURAKAMI
  • Patent number: 7806074
    Abstract: A coating machine is capable of reducing VOC and CO2 by atomizing a paint to increase depositing efficiency without lowering production efficiency and the rotary atomizing head of the coating machine. The coating machine includes the rotary atomizing head in which a paint chamber receiving the supply of paint is formed on the rear side thereof. A plurality of rims formed in a roughly truncated conical shape for extending the paint flowing out of the paint chamber by a centrifugal force and atomizing the paint at the tip thereof are fitted in the rotary atomizing head overlappingly at specific clearances. The clearances are opened to the peripheral surface part of the paint chamber. Accordingly, VOC and CO2 can be reduced by reducing the total jetted amount of paint to enable the atomization of the paint at low rotating speeds so as the increase the deposit efficiency.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: October 5, 2010
    Assignee: Trinity Industrial Corporation
    Inventors: Takao Nomura, Shigeyoshi Inada, Takashi Katsumata
  • Patent number: 7762134
    Abstract: A dynamic quantity sensor includes a base, a sensor chip made of a rectangular board having a corner portion, and a bump. The sensor chip includes a detector, and a plurality of pads. The detector has a movable part, which is displaceable when a dynamic quantity is applied thereto, and detects the dynamic quantity based on a capacitance variation in accordance with a displacement of the movable part. The bump connects the plurality of pads of the sensor chip and the base. The corner portion of the sensor chip is released from the base such that the plurality of pads of the sensor chip is arranged at a location a predetermined distance from the corner portion of the sensor chip.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 27, 2010
    Assignee: DENSO CORPORATION
    Inventor: Takashi Katsumata
  • Publication number: 20100025783
    Abstract: A miniaturized sensor such as a micro-accelerometer includes a sensor chip having a sensor element mounted thereon, with the sensor element being oriented with its central axes passing through the corners of the sensor chip. The corners of the sensor element are thereby located substantially apart from the corners of the sensor chip, so that bending deformation which displaces corners of the sensor chip is substantially prevented from causing displacement of corners of the sensor element. Detection inaccuracy resulting from such displacement can thereby be prevented or reduced.
    Type: Application
    Filed: April 24, 2008
    Publication date: February 4, 2010
    Applicant: DENSO CORPORATION
    Inventors: Takashi Katsumata, Masaki Takashima, Mikio Sugiki
  • Publication number: 20090182043
    Abstract: To provide an aqueous pharmaceutical preparation of a platinum complex which has no fear of contaminating a compounder with a drug with cytotoxicity, can be prepared by a simple operation, has a compact size, and is suppressed from deteriorating of drug during a long-term storage, an aqueous pharmaceutical preparation of a solution of a platinum complex in a stable state, in which an aqueous solution containing a platinum complex is contained in an oxygen-permeable container, and the oxygen-permeable container is contained in an oxygen-barrier container, the preparation being characterized in that the gap between the oxygen-barrier container and the oxygen-permeable container is filled with gas containing oxygen.
    Type: Application
    Filed: December 13, 2006
    Publication date: July 16, 2009
    Inventors: Seiji Nishida, Takashi Katsumata, Makoto Sato
  • Patent number: 7523665
    Abstract: An angular velocity sensor includes first and second vibrators having a movable portion with driving and detecting purpose movable electrodes and a fixed portion with first and second side driving and detecting purpose fixed electrodes. The driving voltages applied to the first side driving purpose fixed electrode in the first vibrator is a first driving voltage including direct and alternating voltages. The driving voltage applied to the second side driving purpose fixed electrode in the first vibrator is a second driving voltage including direct and alternating voltages. At least one of the direct voltages, one of the alternating voltages, or one of duty ratios of the first and second driving voltages is controlled so that the first vibrator vibrates opposite to the second vibrator.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: April 28, 2009
    Assignees: DENSO CORPORATION, Nippon Soken, Inc.
    Inventors: Takashi Katsumata, Takeshi Ito, Hirofumi Higuchi, Mutsuhito Ogino, Tetsuya Morishima
  • Publication number: 20080245296
    Abstract: A coating machine is capable of reducing VOC and CO2 by atomizing a paint to increase depositing efficiency without lowering production efficiency and the rotary atomizing head of the coating machine. The coating machine includes the rotary atomizing head in which a paint chamber receiving the supply of paint is formed on the rear side thereof. A plurality of rims formed in a roughly truncated conical shape for extending the paint flowing out of the paint chamber by a centrifugal force and atomizing the paint at the tip thereof are fitted in the rotary atomizing head overlappingly at specific clearances. The clearances are opened to the peripheral surface part of the paint chamber. Accordingly, VOC and CO2 can be reduced by reducing the total jetted amount of paint to enable the atomization of the paint at low rotating speeds so as the increase the deposit efficiency.
    Type: Application
    Filed: March 23, 2005
    Publication date: October 9, 2008
    Applicant: TRINITY INDUSTRIAL CORPORATION
    Inventors: Takao Nomura, Shigeyoshi Inada, Takashi Katsumata
  • Publication number: 20080066546
    Abstract: A dynamic quantity sensor includes a base, a sensor chip made of a rectangular board having a corner portion, and a bump. The sensor chip includes a detector, and a plurality of pads. The detector has a movable part, which is displaceable when a dynamic quantity is applied thereto, and detects the dynamic quantity based on a capacitance variation in accordance with a displacement of the movable part. The bump connects the plurality of pads of the sensor chip and the base. The corner portion of the sensor chip is released from the base such that the plurality of pads of the sensor chip is arranged at a location a predetermined distance from the corner portion of the sensor chip.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 20, 2008
    Applicant: DENSO CORPORATION
    Inventor: Takashi Katsumata
  • Publication number: 20070240645
    Abstract: A coating machine enables the inside of a paint chamber to be washed clean with less amount of use of thinner by increasing washing efficiency and is capable of forming a coating with uniform coating thickness by always uniformly jetting a paint over 360° about a rotary atomizing head and the rotary atomizing head of the coating machine. The coating machine includes the rotary atomizing head in which the paint chamber is formed in the clearance between an outer bell fitted to the tip of a tubular rotating shaft and an inner bell fitted to the front side of the outer bell. Fins agitating, in the paint chamber, a washing fluid supplied from a thin tubular nozzle inserted into the tubular rotating shaft are radially formed on the rear surface side of the inner bell. An annular paint groove temporarily accumulating the paint is formed in the inner surface of the rim part of the outer bell on which the paint jetted from the paint jetting holes formed at the peripheral surface part of the paint chamber is extended.
    Type: Application
    Filed: March 23, 2005
    Publication date: October 18, 2007
    Applicant: TRINITY INDUSTRIAL CORPORATION
    Inventors: Takao Nomura, Shigeyoshi Inada, Takashi Katsumata, Satoshi Takeda
  • Publication number: 20070199377
    Abstract: An angular velocity sensor includes first and second vibrators having a movable portion with driving and detecting purpose movable electrodes and a fixed portion with first and second side driving and detecting purpose fixed electrodes. The driving voltages applied to the first side driving purpose fixed electrode in the first vibrator is a first driving voltage including direct and alternating voltages. The driving voltage applied to the second side driving purpose fixed electrode in the first vibrator is a second driving voltage including direct and alternating voltages. At least one of the direct voltages, one of the alternating voltages, or one of duty ratios of the first and second driving voltages is controlled so that the first vibrator vibrates opposite to the second vibrator.
    Type: Application
    Filed: January 16, 2007
    Publication date: August 30, 2007
    Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.
    Inventors: Takashi Katsumata, Takeshi Ito, Hirofumi Higuchi, Mitsuhito Ogino, Tetsuya Morishima
  • Patent number: 7096732
    Abstract: A semiconductor device includes gaps formed in a semiconductor substrate to provide an inner portion movable in x and y directions. Drive electrodes vibrate the inner portion in the x direction, and detection electrodes detect movement in the y direction generated when an angular velocity is applied thereto. Monitor electrodes generate monitor signals for monitoring movement of the inner portion in the x direction. Shield wires are provided between the drive and detection electrodes and the monitor electrodes to suppress capacitive coupling. Dummy electrodes adjacent to the output electrodes and capacitively coupled to the drive electrodes generate a dummy signal. Dummy signal wires are respectively connected to the dummy electrodes and to the circuit substrate. The dummy signal includes an induced component of a periodical signal and is supplied to the circuit substrate to cancel another induced component of the periodical signal in the drive and monitor signals.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 29, 2006
    Assignee: Denso Corporation
    Inventors: Takashi Katsumata, Hirofumi Higuchi
  • Patent number: 7007550
    Abstract: In a semiconductor dynamic quantity sensor, a mass serving as a weight portion for detecting application of a dynamic quantity is divided into three masses (301, 302, 303) in series. The masses (301, 302, 303) thus divided are connected to one another by connecting beams (CB1, CB2, CB3, CB4). The masses (301, 302, 303) located at both the end portions are supported through beams (B1, B2, B3, B4) by a semiconductor substrate (1) so as to be allowed to be displaced in the direction orthogonal to the connection direction of the masses. The center mass (302) connected to the masses (301, 302, 303) through the connecting beams (CB1, CB2, CB3, CB4) is allowed to be displaced only in the connecting direction of the masses by the connecting beams (CB1, CB2, CB3, CB4).
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: March 7, 2006
    Assignee: Denso Corporation
    Inventors: Minekazu Sakai, Takashi Katsumata
  • Patent number: 6973836
    Abstract: A semiconductor pressure sensor includes a semiconductor substrate having a diaphragm for receiving pressure and a bridge circuit for detecting a distortion of the diaphragm corresponding to the pressure. The bridge circuit includes a pair of first gauge resistors and a pair of second gauge resistors. The first gauge resistors are disposed on a center of the diaphragm, and the second gauge resistors are disposed on a periphery of the diaphragm. Each first gauge resistor has a first resistance, which is larger than a second resistance of each second gauge resistor. The TNO property of the sensor is improved, so that the sensor has high detection accuracy.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: December 13, 2005
    Assignee: Denso Corporation
    Inventors: Takashi Katsumata, Inao Toyoda, Hiroaki Tanaka
  • Patent number: 6923060
    Abstract: A capacitive-type acceleration sensor includes a sensor chip that forms a moving electrode and a fixed electrode. The electrodes face each other while maintaining a detection gap. The sensor chip is joined to a circuit chip integrally. The circuit chip is mounted on a package via a resin adhesive. The adhesive is mixed with a filler of a material having a Young's modulus higher than that of the resin.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: August 2, 2005
    Assignee: Denso Corporation
    Inventors: Takashi Katsumata, Toshiya Ikezawa, Tomohito Kunda
  • Publication number: 20050119223
    Abstract: An injectable solution comprising a shark-derived chondroitin sulfate iron colloid, and a method for manufacturing an injectable solution comprising the step of adding an aqueous ferric salt solution and an aqueous alkali metal hydroxide solution to a shark-derived chondroitin sulfate solution, such that the resulting mixture has a pH value adjusted to any pH value within the range of from about 5.5 to about 7.5.
    Type: Application
    Filed: January 13, 2005
    Publication date: June 2, 2005
    Inventors: Seiji Nishida, Naohisa Katayama, Takashi Katsumata, Makoto Sato