Patents by Inventor Tetsushi Watanabe

Tetsushi Watanabe 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: 20220228958
    Abstract: Provided is a tensile and compression tester, an information processing device for processing data measured by a plurality of sensors, an application, and a system including the information processing device. The information processing device for the tensile and compression tester is configured to create a predetermined calculation equation, acquire measurement data from a plurality of sensors connected to the information processing device, substitute the measurement data into the predetermined calculation equation; and calculate a desired characteristic value from the calculation equation.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 21, 2022
    Inventors: Tetsushi WATANABE, Shinya OSHIMA
  • Patent number: 9577488
    Abstract: Problem To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration resistance but also excellent heat releasing properties. Means for Solution A drive unit integrated rotating electrical machine has a motor, a drive unit driving the motor under control and provided with power switching elements and conductors passing a current to the power switching elements, and a heat sink cooling the drive unit, which are combined into one unit. The drive unit integrated rotating electrical machine is characterized in that: the power switching elements are molded and formed into mold modules in a state in which terminals thereof are exposed; the conductors are insert-molded in a frame in a state in which terminals thereof are exposed; and the exposed terminals of the mold modules are connected to the exposed terminals of the insert-molded conductors and the mold modules are firmly fixed to the heat sink.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: February 21, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Isao Sonoda, Yoshihito Asao, Mamoru Watanabe, Katsuhiko Omae, Tetsushi Watanabe
  • Patent number: 9129931
    Abstract: A power semiconductor module includes: a plurality of first metal plates arranged in the same planar state; a power semiconductor chip mounted on the first metal plate; and an overbridge-shaped second metal plate which is composed of bridge frame sections and leg sections that support the bridge frame sections, the leg sections being for appropriately performing solder bonding between electrodes of the power semiconductor chips and between the electrode of the power semiconductor chip and the first metal plate, the power semiconductor module being configured by a resin package in which these members are sealed with electrically insulating resin. In the power semiconductor module, the solder bonding section of the leg section is formed in a planar shape by bending process and is provided at a position lower than the bridge frame section.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: September 8, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuhiko Omae, Mamoru Watanabe, Tetsushi Watanabe, Yoshihito Asao
  • Patent number: 9123693
    Abstract: There is provided a mold module and an electric power steering apparatus in which the temperature distribution in electronic components such as semiconductor chips utilized in an electronic relay and an inverter circuit unit is equalized and hence the heat radiation performance can be improved. In a mold module according to the present invention, a plurality of terminals for forming wiring leads and a plurality of electronic components mounted on the respective terminals are molded with a molding resin; at least part of the plurality of terminals are exposed at the rear side of the molding resin; an electric power steering apparatus according to the present invention utilizes the mold module.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: September 1, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Tanaka, Yoshihito Asao, Katsuhiko Omae, Tetsushi Watanabe
  • Publication number: 20140151146
    Abstract: There is provided a mold module and an electric power steering apparatus in which the temperature distribution in electronic components such as semiconductor chips utilized in an electronic relay and an inverter circuit unit is equalized and hence the heat radiation performance can be improved. In a mold module according to the present invention, a plurality of terminals for forming wiring leads and a plurality of electronic components mounted on the respective terminals are molded with a molding resin; at least part of the plurality of terminals are exposed at the rear side of the molding resin; an electric power steering apparatus according to the present invention utilizes the mold module.
    Type: Application
    Filed: April 7, 2011
    Publication date: June 5, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Daisuke Tanaka, Yoshihito Asao, Katsuhiko Omae, Tetsushi Watanabe
  • Publication number: 20130334906
    Abstract: To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration resistance but also excellent heat releasing properties. Means for Solution A drive unit integrated rotating electrical machine has a motor, a drive unit driving the motor under control and provided with power switching elements and conductors passing a current to the power switching elements, and a heat sink cooling the drive unit, which are combined into one unit. The drive unit integrated rotating electrical machine is characterized in that: the power switching elements are molded and formed into mold modules in a state in which terminals thereof are exposed; the conductors are insert-molded in a frame in a state in which terminals thereof are exposed; and the exposed terminals of the mold modules are connected to the exposed terminals of the insert-molded conductors and the mold modules are firmly fixed to the heat sink.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 19, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Isao Sonoda, Yoshihito Asao, Mamoru Watanabe, Katsuhiko Omae, Tetsushi Watanabe
  • Publication number: 20130241047
    Abstract: A power semiconductor module includes: a plurality of first metal plates arranged in the same planar state; a power semiconductor chip mounted on the first metal plate; and an overbridge-shaped second metal plate which is composed of bridge frame sections and leg sections that support the bridge frame sections, the leg sections being for appropriately performing solder bonding between electrodes of the power semiconductor chips and between the electrode of the power semiconductor chip and the first metal plate, the power semiconductor module being configured by a resin package in which these members are sealed with electrically insulating resin. In the power semiconductor module, the solder bonding section of the leg section is formed in a planar shape by bending process and is provided at a position lower than the bridge frame section.
    Type: Application
    Filed: April 27, 2011
    Publication date: September 19, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Katsuhiko Omae, Mamoru Watanabe, Tetsushi Watanabe, Yoshihito Asao
  • Patent number: 8292778
    Abstract: The idle-stop restart control system includes: a sensorless synchronous motor-generator which operates as a generator and a starting motor; an induced-signal detecting circuit for detecting an induced signal output from an armature winding; a field drive circuit for controlling energization of a field winding; and a restart control circuit output, to the field drive circuit, a drive signal for controlling the energization of the field winding to amplify the induced signal while calculating the number of revolutions and an angular position of a rotor based on the detected induced signal when an engine stop command is input and a level of the detected induced signal is equal to or less than a predetermined value and output the drive signal for controlling the energization of the armature winding to restart the engine based on the calculated number of revolutions and angular position of the rotor when a restart command is input.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: October 23, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsushi Watanabe, Masaaki Taruya, Katsuya Tsujimoto
  • Patent number: 8294402
    Abstract: A bridge rectifier circuit, which takes control of a current flowing through an armature winding of a motor-generator and a battery, includes rectifier elements each made of a MOSFET; phase current detection means that detect the amount and the direction of current flowing between the drain and the source of the FET; and a control means that takes on/off control of the FET by applying a control voltage between the gate and the source thereof; wherein when the phase current detection means detect a reverse current flowing through the FET exceeding a first predetermined value, the control means applies a control voltage between the gate and the source of the FET so as to turn on the FET.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: October 23, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsushi Watanabe, Masaaki Taruya
  • Patent number: 8117360
    Abstract: An on-vehicle electronic control device 100A serially transmits A/D conversion data of plural channels from a second control circuit unit 300A including a multichannel A/D converter 204A to a microprocessor 110A disposed in a first control circuit unit 200A. The A/D conversion data are organized into a communication packet and transmitted via first and second buffer memories 204b and 204d, and when there is an abnormality in the A/D conversion data, transfer between the first and second buffer memories 204b and 204d is prohibited and an abnormality report is performed with respect to the microprocessor 110A. As a result, erroneous data are not transmitted, and communication congestion and the burden of the microprocessor 110A are alleviated.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: February 14, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuki Iwagami, Tetsushi Watanabe, Junya Tanaka, Manabu Yamashita, Koji Hashimoto
  • Publication number: 20110049880
    Abstract: The idle-stop restart control system includes: a sensorless synchronous motor-generator which operates as a generator and a starting motor; an induced-signal detecting circuit for detecting an induced signal output from an armature winding; a field drive circuit for controlling energization of a field winding; and a restart control circuit output, to the field drive circuit, a drive signal for controlling the energization of the field winding to amplify the induced signal while calculating the number of revolutions and an angular position of a rotor based on the detected induced signal when an engine stop command is input and a level of the detected induced signal is equal to or less than a predetermined value and output the drive signal for controlling the energization of the armature winding to restart the engine based on the calculated number of revolutions and angular position of the rotor when a restart command is input.
    Type: Application
    Filed: March 2, 2010
    Publication date: March 3, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsushi WATANABE, Masaaki TARUYA, Katsuya TSUJIMOTO
  • Publication number: 20100301791
    Abstract: A bridge rectifier circuit, which takes control of a current flowing through an armature winding of a motor-generator and a battery, includes rectifier elements each made of a MOSFET; phase current detection means that detect the amount and the direction of current flowing between the drain and the source of the FET; and a control means that takes on/off control of the FET by applying a control voltage between the gate and the source thereof; wherein when the phase current detection means detect a reverse current flowing through the FET exceeding a first predetermined value, the control means applies a control voltage between the gate and the source of the FET so as to turn on the FET.
    Type: Application
    Filed: December 30, 2009
    Publication date: December 2, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsushi WATANABE, Masaaki Taruya
  • Patent number: 7609496
    Abstract: An electrical load is supplied with power from a driving power source, and a microprocessor (CPU) controls the opening/closing current supply rate (duty factor) of an opening/closing element in accordance with target current and driving power source voltage so that open loop control is carried out to achieve predetermined target current. The voltage between both the ends of a current detecting resistor connected to the ground side of the opening/closing element is input as a monitoring voltage from a current detecting amplifying circuit portion through a multichannel AD converter to CPU. When the error between the comparison target voltage corresponding to the target current and the monitoring voltage is above a first permissible error, CPU judges that there is an abnormality sign, and if the error is above a larger second permissible error, CPU judges that there is appearing abnormality.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 27, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masao Motonobu, Shuuiti Matsumoto, Osamu Nishizawa, Tetsushi Watanabe
  • Publication number: 20080071949
    Abstract: An on-vehicle electronic control device 100A serially transmits A/D conversion data of plural channels from a second control circuit unit 300A including a multichannel A/D converter 204A to a microprocessor 110A disposed in a first control circuit unit 200A. The A/D conversion data are organized into a communication packet and transmitted via first and second buffer memories 204b and 204d, and when there is an abnormality in the A/D conversion data, transfer between the first and second buffer memories 204b and 204d is prohibited and an abnormality report is performed with respect to the microprocessor 110A. As a result, erroneous data are not transmitted, and communication congestion and the burden of the microprocessor 110A are alleviated.
    Type: Application
    Filed: March 7, 2007
    Publication date: March 20, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuki Iwagami, Tetsushi Watanabe, Junya Tanaka, Manabu Yamashita, Koji Hashimoto
  • Patent number: 7263431
    Abstract: A signal voltage, which a variable analog signal source generates, is inputted to a microprocessor via a gain adjustment circuit, a switched capacitor filter circuit, and an analog comparison circuit. The microprocessor that cooperates with a program memory generates a control signal pulse train of a variable period and a variable duty. Filter characteristics are adjusted with a period of the control signal pulse trains CNTa and CNTb, and gain is adjusted with a pulse duty. Even if a comparison reference voltage of the analog adjustment circuit is a fixed value, it is possible to make virtual change and adjustment of a comparison reference voltage by adjusting a gain of the gain adjustment circuit. As a result, it is possible to provide an analog input signal processing circuit capable of individually adjusting input filter characteristics and input gain.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: August 28, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koji Hashimoto, Tetsushi Watanabe, Manabu Yamashita
  • Patent number: 7195477
    Abstract: A sheet material pressing machine for pressing a sheet material into a formed article may include a first die unit that can be opened and closed and a second die unit that can be opened and closed. The first and second die units are arranged and constructed such that closing operation of the first die unit and opening operation of the second die unit, or vice versa, can alternately occur.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: March 27, 2007
    Assignees: Kojima Press Industry Co. Ltd, Tekunohama Co, Ltd, Wako Machine Works Co, Ltd
    Inventors: Hiroyuki Ikeda, Masanori Ogawa, Tetsushi Watanabe, Tsuyoshi Inoue, Masaaki Ando, Kunio Tabata
  • Publication number: 20070067090
    Abstract: A signal voltage, which a variable analog signal source generates, is inputted to a microprocessor via a gain adjustment circuit, a switched capacitor filter circuit, and an analog comparison circuit. The microprocessor that cooperates with a program memory generates a control signal pulse train of a variable period and a variable duty. Filter characteristics are adjusted with a period of the control signal pulse trains CNTa and CNTb, and gain is adjusted with a pulse duty. Even if a comparison reference voltage of the analog adjustment circuit is a fixed value, it is possible to make virtual change and adjustment of a comparison reference voltage by adjusting a gain of the gain adjustment circuit. As a result, it is possible to provide an analog input signal processing circuit capable of individually adjusting input filter characteristics and input gain.
    Type: Application
    Filed: February 14, 2006
    Publication date: March 22, 2007
    Inventors: Koji Hashimoto, Tetsushi Watanabe, Manabu Yamashita
  • Publication number: 20070030068
    Abstract: An electrical load is supplied with power from a driving power source, and a microprocessor (CPU) controls the opening/closing current supply rate (duty factor) of an opening/closing element in accordance with target current and driving power source voltage so that open loop control is carried out to achieve predetermined target current. The voltage between both the ends of a current detecting resistor connected to the ground side of the opening/closing element is input as a monitoring voltage from a current detecting amplifying circuit portion through a multichannel AD converter to CPU. When the error between the comparison target voltage corresponding to the target current and the monitoring voltage is above a first permissible error, CPU judges that there is an abnormality sign, and if the error is above a larger second permissible error, CPU judges that there is appearing abnormality.
    Type: Application
    Filed: February 16, 2006
    Publication date: February 8, 2007
    Inventors: Masao Motonobu, Shuuiti Matsumoto, Osamu Nishizawa, Tetsushi Watanabe
  • Patent number: 7120030
    Abstract: A housing structure for vehicle-mounted electronic equipment according to the present invention is superior in heat dissipation, water resistance, heat resistance and vibration resistance. An electronic substrate is temporarily fixed onto an annular circumferential wall part of a cover made of fire retardant resin, and connector contact pins are soldered to the electronic substrate. The electronic substrate is fixed and held between a heat-transfer base and the annular circumferential wall part with screws, and heat generated by a heating part on the electronic substrate is transferred to the base and dissipated. The annular circumferential wall part has an annular groove in which a sealant is inserted, and the base has an annular protrusion snapped into the annular groove.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: October 10, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Isao Azumi, Tetsushi Watanabe
  • Publication number: 20060073230
    Abstract: A sheet material pressing machine for pressing a sheet material into a formed article may include a first die unit that can be opened and closed and a second die unit that can be opened and closed. The first and second die units are arranged and constructed such that closing operation of the first die unit and opening operation of the second die unit, or vice versa, can alternately occur.
    Type: Application
    Filed: October 4, 2005
    Publication date: April 6, 2006
    Applicants: Kojima Press Industry Co., LTD., Tekunohama Co., LTD., Plamac Co., LTD., Wako Machine Works Co., LTD.
    Inventors: Hiroyuki Ikeda, Masanori Ogawa, Tetsushi Watanabe, Tsuyoshi Inoue, Masaaki Ando, Kunio Tabata