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: 20220228958Abstract: 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: ApplicationFiled: April 15, 2020Publication date: July 21, 2022Inventors: Tetsushi WATANABE, Shinya OSHIMA
-
Patent number: 9577488Abstract: 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: GrantFiled: May 20, 2011Date of Patent: February 21, 2017Assignee: Mitsubishi Electric CorporationInventors: Isao Sonoda, Yoshihito Asao, Mamoru Watanabe, Katsuhiko Omae, Tetsushi Watanabe
-
Patent number: 9129931Abstract: 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: GrantFiled: April 27, 2011Date of Patent: September 8, 2015Assignee: Mitsubishi Electric CorporationInventors: Katsuhiko Omae, Mamoru Watanabe, Tetsushi Watanabe, Yoshihito Asao
-
Patent number: 9123693Abstract: 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: GrantFiled: April 7, 2011Date of Patent: September 1, 2015Assignee: Mitsubishi Electric CorporationInventors: Daisuke Tanaka, Yoshihito Asao, Katsuhiko Omae, Tetsushi Watanabe
-
Publication number: 20140151146Abstract: 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: ApplicationFiled: April 7, 2011Publication date: June 5, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Daisuke Tanaka, Yoshihito Asao, Katsuhiko Omae, Tetsushi Watanabe
-
Publication number: 20130334906Abstract: 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: ApplicationFiled: May 20, 2011Publication date: December 19, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao Sonoda, Yoshihito Asao, Mamoru Watanabe, Katsuhiko Omae, Tetsushi Watanabe
-
Publication number: 20130241047Abstract: 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: ApplicationFiled: April 27, 2011Publication date: September 19, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Katsuhiko Omae, Mamoru Watanabe, Tetsushi Watanabe, Yoshihito Asao
-
Patent number: 8292778Abstract: 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: GrantFiled: March 2, 2010Date of Patent: October 23, 2012Assignee: Mitsubishi Electric CorporationInventors: Tetsushi Watanabe, Masaaki Taruya, Katsuya Tsujimoto
-
Patent number: 8294402Abstract: 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: GrantFiled: December 30, 2009Date of Patent: October 23, 2012Assignee: Mitsubishi Electric CorporationInventors: Tetsushi Watanabe, Masaaki Taruya
-
Patent number: 8117360Abstract: 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: GrantFiled: March 7, 2007Date of Patent: February 14, 2012Assignee: Mitsubishi Electric CorporationInventors: Yuki Iwagami, Tetsushi Watanabe, Junya Tanaka, Manabu Yamashita, Koji Hashimoto
-
Publication number: 20110049880Abstract: 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: ApplicationFiled: March 2, 2010Publication date: March 3, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsushi WATANABE, Masaaki TARUYA, Katsuya TSUJIMOTO
-
Publication number: 20100301791Abstract: 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: ApplicationFiled: December 30, 2009Publication date: December 2, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsushi WATANABE, Masaaki Taruya
-
Patent number: 7609496Abstract: 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: GrantFiled: February 16, 2006Date of Patent: October 27, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masao Motonobu, Shuuiti Matsumoto, Osamu Nishizawa, Tetsushi Watanabe
-
Publication number: 20080071949Abstract: 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: ApplicationFiled: March 7, 2007Publication date: March 20, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuki Iwagami, Tetsushi Watanabe, Junya Tanaka, Manabu Yamashita, Koji Hashimoto
-
Patent number: 7263431Abstract: 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: GrantFiled: February 14, 2006Date of Patent: August 28, 2007Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Koji Hashimoto, Tetsushi Watanabe, Manabu Yamashita
-
Patent number: 7195477Abstract: 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: GrantFiled: October 4, 2005Date of Patent: March 27, 2007Assignees: Kojima Press Industry Co. Ltd, Tekunohama Co, Ltd, Wako Machine Works Co, LtdInventors: Hiroyuki Ikeda, Masanori Ogawa, Tetsushi Watanabe, Tsuyoshi Inoue, Masaaki Ando, Kunio Tabata
-
Publication number: 20070067090Abstract: 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: ApplicationFiled: February 14, 2006Publication date: March 22, 2007Inventors: Koji Hashimoto, Tetsushi Watanabe, Manabu Yamashita
-
Publication number: 20070030068Abstract: 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: ApplicationFiled: February 16, 2006Publication date: February 8, 2007Inventors: Masao Motonobu, Shuuiti Matsumoto, Osamu Nishizawa, Tetsushi Watanabe
-
Patent number: 7120030Abstract: 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: GrantFiled: September 22, 2003Date of Patent: October 10, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Isao Azumi, Tetsushi Watanabe
-
Publication number: 20060073230Abstract: 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: ApplicationFiled: October 4, 2005Publication date: April 6, 2006Applicants: 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