Patents by Inventor Sadahiko Tanaka
Sadahiko Tanaka 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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Patent number: 9100020Abstract: A panel device includes a panel section, a first conductive layer that is provided in a side of one surface of the panel section, an insulating layer that is stacked on the first conductive layer and a second conductive layer that is stacked on the insulating layer. The first conductive layer and the second conductive layer are formed by coating an electrically conductive solvent-type substance. The insulating layer is formed by coating an insulating curing-acceleration-type substance.Type: GrantFiled: September 9, 2010Date of Patent: August 4, 2015Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Patent number: 8766924Abstract: An EL emitting touch switch includes first electrodes, a single second electrode facing the first electrodes, and EL layers each sandwiched between a corresponding one of the first electrodes and the second electrode. A light emission driver applies a driving voltage between the first and second electrodes to cause the EL layers to emit light. A timing signal generator generates a timing signal to control the light emission driver such that the application of the driving voltage is stopped at predetermined intervals. Touch decision units are provided for each first electrode. Each touch decision unit includes a feedback circuit for supplying current to the corresponding first electrode such that the potentials of the first and second electrodes become equal to each other, and detects contact of a human body with the corresponding first electrode based on operation of the feedback circuit while the application of the driving voltage is stopped.Type: GrantFiled: March 14, 2008Date of Patent: July 1, 2014Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Patent number: 8654097Abstract: An electrostatic capacitive touch sensor device includes sensing electrode provided at a plurality of positions, a high-frequency signal source that applies a high-frequency signal to the sensing electrode through a predetermined impedance element, a wiring portion that connects the sensing electrode and the impedance element, a shield portion provided to embrace the sensing electrodes and the connecting pattern, and a shield signal source that applies a shield signal to the shield portion and has the same phase and amplitude as the high-frequency signal source.Type: GrantFiled: September 9, 2010Date of Patent: February 18, 2014Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Patent number: 8587553Abstract: A detection circuit 1 includes: an input unit 2; two contact electrodes A and B which are connected to the input unit; phase inversion unit 3 connected to the contact electrode A; one amplification unit 41 arranged in each contact unit; and detection units 5A and 5B which detect as an electric change amount, an amplitude change of an input signal caused by a capacitance change in each of the contact electrodes A and B. The detection circuit 1 causes the two electrodes to input signals having phases shifted by a half period from each other by using the phase inversion unit 3. In the presence of contact, the amplitude of the input pulses is amplified by the one amplification unit 41. The respective detection units 5A and 5B detect signals of respective electrodes from the one amplified signal and output them to output units 6A and 6B, respectively.Type: GrantFiled: October 8, 2008Date of Patent: November 19, 2013Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Patent number: 8547351Abstract: A touch sensor device 1 includes a touch sensor 11; an average value calculating means 12 for calculating the average value of output voltages sent out from an output section 111 of the touch sensor 11; a threshold value calculating means 13 for calculating a threshold value based on the average value; and a comparing/determining means 14 for comparing the output voltage with the threshold value and, when determining that the output voltage exceeds the threshold value, outputting a determination signal.Type: GrantFiled: December 16, 2008Date of Patent: October 1, 2013Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Patent number: 8436494Abstract: A touch sensor device comprises: a touch sensor 1 for sending out an output voltage signal S1 representing the presence or absence of an operation; an operation presence/absence determination unit 2 which, when the output voltage signal has a value equal to or more than a predetermined threshold value, determines that the operation has occurred; a stability determination unit 5 for detecting whether a differential signal S3 representing a differential value obtained by differentiating the output voltage signal is limited within a predetermined range or not; and a count-up timer 4 which, when a period during which the differential signal is limited within the predetermined range becomes a predetermined time period or longer on the premise that the output voltage signal has the value equal to or more than the predetermined threshold value, sends out an ON determination signal S5 and allows an external device 7 to operate.Type: GrantFiled: October 9, 2008Date of Patent: May 7, 2013Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue, Arihiro Isomura, Kenji Kishiue
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Patent number: 8148659Abstract: A touch switch structure is provided that can be preferably used for an automotive instrument panel and can securely prevent misjudgments and incorrect detections with respect to operations on the switch. For that purpose, the touch switch structure comprises a base material 2 made of a nonconductive material; a shield electrode layer 4 made of a conductive material and formed on one surface of the base material 2; a touch detection electrode 3 formed on one surface of the base material 2 at the portion where the shield electrode layer 4 is not formed; and an insulation layer 5 made of a nonconductive material and formed at least between the shield electrode layer 4 and a connection pattern 6 of the touch detection electrode 3.Type: GrantFiled: January 29, 2008Date of Patent: April 3, 2012Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Sadahiko Tanaka, Keitaro Takizawa, Yasunori Murayama, Kouichi Yamanoue
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Patent number: 8110767Abstract: A structured touch switch, which is of an electrostatic capacitance, type is provided. The structured touch switch comprises a substrate made of a material having a non-conductive characteristic, a conductive member made of a material having a conductive characteristic and formed integrally with the substrate so that a portion of the conductive characteristic member appears at a surface of the substrate and a detection electrode positioned at a backside of the substrate and in opposed relation to the conductive member in a state where a space is defined with respect to the conductive member.Type: GrantFiled: June 6, 2008Date of Patent: February 7, 2012Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Patent number: 7910842Abstract: A touch switch is composed of an EL light emitting layer configured by stacking a fluorescent layer and an insulation layer between first electrodes and a second electrode, a judgment unit for making a judgment on touch manipulation with the first electrode by an operator and an EL driving unit for driving the EL light emitting layer for light emitting, with each of a plurality of first electrodes, each of plurality of fluorescent layers and each of plurality of insulation layers being provided as a set and the second electrode being provided as a single electrode with respect to the plurality of first electrodes, wherein the judgment unit makes a judgment on which of the plurality of first electrodes has been touched by an operator on the basis of a high-frequency component inputted from the second electrode through the first electrode each time the touch switch is touched by an operator.Type: GrantFiled: April 24, 2008Date of Patent: March 22, 2011Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20100330371Abstract: A panel device includes a panel section, a first conductive layer that is provided in a side of one surface of the panel section, an insulating layer that is stacked on the first conductive layer and a second conductive layer that is stacked on the insulating layer. The first conductive layer and the second conductive layer are formed by coating an electrically conductive solvent-type substance. The insulating layer is formed by coating an insulating curing-acceleration-type substance.Type: ApplicationFiled: September 9, 2010Publication date: December 30, 2010Inventors: Kazuto YAMAUCHI, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20100328266Abstract: An electrostatic capacitive touch sensor device includes sensing electrode provided at a plurality of positions, a high-frequency signal source that applies a high-frequency signal to the sensing electrode through a predetermined impedance element, a wiring portion that connects the sensing electrode and the impedance element, a shield portion provided to embrace the sensing electrodes and the connecting pattern, and a shield signal source that applies a shield signal to the shield portion and has the same phase and amplitude as the high-frequency signal source.Type: ApplicationFiled: September 9, 2010Publication date: December 30, 2010Inventors: Kazuto YAMAUCHI, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20100258361Abstract: A touch sensor device 1 of the present invention comprises a touch sensor 11; an average value calculating means 12 for calculating the average value of output voltages sent out from an output section 111 of the touch sensor 11; a threshold value calculating means 13 for calculating a threshold value based on the average value; and a comparing/determining means 14 for comparing the output voltage with the threshold value and, when determining that the output voltage exceeds the threshold value, outputting a determination signal.Type: ApplicationFiled: December 16, 2008Publication date: October 14, 2010Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20100252408Abstract: A touch sensor device comprises: a touch sensor 1 for sending out an output voltage signal S1 representing the presence or absence of an operation; an operation presence/absence determination unit 2 which, when the output voltage signal S1 has a value equal to or more than a predetermined threshold value, determines that the operation has occurred; a stability determination unit 5 for detecting whether a differential signal S3 representing a differential value obtained by differentiating the output voltage signal S1 is limited within a predetermined range or not; and a count-up timer 4 which, when a period during which the differential signal S3 is limited within the predetermined range becomes a predetermined time period or longer on the premise that the output voltage signal S1 has the value equal to or more than the predetermined threshold value, sends out an ON determination signal S5 and allows an external device 7 to operate.Type: ApplicationFiled: October 9, 2008Publication date: October 7, 2010Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue, Arihiro Isomura, Kenji Kishiue
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Publication number: 20100230180Abstract: A detection circuit 1 includes: an input unit 2; two contact electrodes A and B which are connected to the input unit; phase invention means 3 connected to the contact electrode A; one amplification means 41 arranged in each contact means; and detection means 5A and 5B which detect as an electric change amount, an amplitude change of an input signal caused by a capacitance change in each of the contact electrodes A and B. The detection circuit 1 causes the two electrodes to input signals having phases shifted by a half period from each other by using the phase invention means 3. In the presence of contact, the amplitude of the input pulses is amplified by the one amplification means 41. The respective detection means 5A and 5B detect signals of respective electrodes from the one amplified signal and output them to output units 6A and 6B, respectively.Type: ApplicationFiled: October 8, 2008Publication date: September 16, 2010Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20100096248Abstract: A touch switch structure is provided that can be preferably used for an automotive instrument panel and can securely prevent misjudgments and incorrect detections with respect to operations on the switch. For that purpose, the touch switch structure comprises a base material 2 made of a nonconductive material; a shield electrode layer 4 made of a conductive material and formed on one surface of the base material 2; a touch detection electrode 3 formed on one surface of the base material 2 at the portion where the shield electrode layer 4 is not formed; and an insulation layer 5 made of a nonconductive material and formed at least between the shield electrode layer 4 and a connection pattern 6 of the touch detection electrode 3.Type: ApplicationFiled: January 29, 2008Publication date: April 22, 2010Applicants: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Sadahiko Tanaka, Keitaro Takizawa, Yasunori Murayama, Kouichi Yamanoue
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Publication number: 20090073133Abstract: An EL emitting touch switch includes first electrodes, a single second electrode facing the first electrodes, and EL layers each sandwiched between a corresponding one of the first electrodes and the second electrode. A light emission driver applies a driving voltage between the first and second electrodes to cause the EL layers to emit light. A timing signal generator generates a timing signal to control the light emission driver such that the application of the driving voltage is stopped at predetermined intervals. Touch decision units are provided for each first electrode. Each touch decision unit includes a feedback circuit for supplying current to the corresponding first electrode such that the potentials of the first and second electrodes become equal to each other, and detects contact of a human body with the corresponding first electrode based on operation of the feedback circuit while the application of the driving voltage is stopped.Type: ApplicationFiled: March 14, 2008Publication date: March 19, 2009Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20080302649Abstract: The present invention relates to a structured touch switch, which is of an electrostatic capacity type. The structured touch switch comprises a substrate made of a material having a non-conductive characteristic, a conductive member made of a material having a conductive characteristic and formed integrally with the substrate so that a portion of the conductive characteristic member appears at a surface of the substrate and a detection electrode positioned at a backside of the substrate and in opposed relation to the conductive member in a state where a space is defined with respect to the conductive member.Type: ApplicationFiled: June 6, 2008Publication date: December 11, 2008Applicants: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd.Inventors: Kazuto Yamauchi, Yasunori Murayama, Sadahiko Tanaka, Keitaro Takizawa, Kouichi Yamanoue
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Publication number: 20080265788Abstract: A touch switch is composed of an EL light emitting layer configured by stacking a fluorescent layer and an insulation layer between first electrodes and a second electrode, a judgment means for making a judgment on touch manipulation with the first electrode by an operator and an EL driving unit for driving the EL light emitting layer for light emitting, with each of a plurality of first electrodes, each of plurality of fluorescent layers and each of plurality of insulation layers being provided as a set and the second electrode being provided as a single electrode with respect to the plurality of first electrodes, wherein the judgment means makes a judgment on which of the plurality of first electrodes has been touched by an operator on the basis of a high-frequency component inputted from the second electrode through the first electrode each time the touch switch is touched by an operator.Type: ApplicationFiled: April 24, 2008Publication date: October 30, 2008Applicants: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, VISTEON JAPAN, LTD.Inventors: Kazuto YAMAUCHI, Yasunori MURAYAMA, Sadahiko TANAKA, Keitaro TAKIZAWA, Kouichi YAMANOUE
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Patent number: 6029739Abstract: In a vehicular air conditioner, in which an air flow passage for directing air sucked horizontally through a suction port upward in a casing having a plurality of blowout ports at the upper part and said suction port at the lower part, and an evaporator, air mix damper, heater, and blowout mode switching damper for selectively switching the plural blowout ports are arranged in the air flow passage, the evaporator can be replaced easily and rapidly, and the contamination of the surroundings, caused by the drain which drops from the evaporator when the vehicle is inclined and flows back into the blower case and drops from it by leaking, is prevented.Type: GrantFiled: August 18, 1997Date of Patent: February 29, 2000Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tomoki Izawa, Katsunari Shiroyama, Ryosaku Akimoto, Tatsuhide Kawahara, Shinji Banno, Sadahiko Tanaka, Masato Ono, Shigeharu Ishii