Patents by Inventor Taichiro Tamida
Taichiro Tamida 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: 20190172622Abstract: A power supply device for an ozone generator, which supplies electric power to the ozone generator, is configured such that: a transformer, an inverter, and a reactor are disposed inside of one housing; a flat heat exchanger which cools passing air with cooling water is disposed at a lower part inside of the housing; the transformer and the inverter are disposed above the heat exchanger; the reactor is disposed above the transformer and the inverter; a protection panel is disposed further toward the front side of the housing than the transformer and the inverter by being separated from a front door of the housing; and cooling air is circulated in the housing by means of a fan that disposed at a position inside of the front door.Type: ApplicationFiled: August 9, 2016Publication date: June 6, 2019Applicant: Mitsubishi Electric CorporationInventors: Daisuke TAKAUCHI, Yoshiaki ODAI, Hajime NAKATANI, Toshihiro YOSHIDA, Takashi KUMAGAI, Kenji SHIMOHATA, Satoru ISHIZAKA, Taichiro TAMIDA
-
Patent number: 10302046Abstract: An ozone generator and an internal combustion engine with the ozone generator that can raise ozone additive rate of whole intake air, while suppressing pressure loss in the intake pipe from increasing. The internal combustion engine with an ozone generator includes a tubular intake pipe, through an inner region of which air flows, an ozone generator having an electrode plate that makes ozone and is disposed in the inner region or in the intake pipe, and a limiter that limits the flow of air in the inner region of the intake pipe; the electrode plate has a planar dielectric and high-voltage-side and low-voltage-side electrodes adhered and fixed to the dielectric and is formed in a shape of a plate extending in a direction in which air flows.Type: GrantFiled: August 31, 2016Date of Patent: May 28, 2019Assignee: Mitsubishi Electric CorporationInventors: Noboru Wada, Takahiro Inoue, Taichiro Tamida, Yasutaka Inanaga, Takashi Hashimoto, Koji Wada, Tetsuya Honda
-
Publication number: 20190078520Abstract: A change amount per unit time of an engine output command for controlling engine output of an internal combustion engine is calculated as an engine output increasing rate, and a power supply device is controlled so that power corresponding to the calculated engine output increasing rate is supplied to a combustion promoter generation device. The combustion promoter generation device generates a combustion promoter through the power supplied from the power supply device to supply the combustion promoter to a combustion chamber of the internal combustion engine, and a generation amount of the combustion promoter increases as the supplied power increases. In this manner, the generation amount of the combustion promoter is adjusted.Type: ApplicationFiled: December 3, 2015Publication date: March 14, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro INOUE, Taichiro TAMIDA, Takashi HASHIMOTO, Noboru WADA, Akira NAKAGAWA, Tomokazu SAKASHITA, Tetsuya HONDA
-
Publication number: 20180340971Abstract: An insulation detector for highly accurately detecting or measuring, with a simple configuration, insulation resistance of a load or an apparatus to a ground or a housing and connected to an electric apparatus including one or both of an intra-apparatus capacitor and a battery, the insulation detector including an intra-insulation detector capacitor, a voltage detecting unit that detects a voltage of the intra-insulation detector capacitor, and a current-path forming switch for connecting the ground or the housing, the intra-apparatus capacitor, and the intra-insulation detector capacitor in series and forming a current path including insulation resistance of the electric apparatus. The insulation detector measures the insulation resistance by measuring a time constant of a change in the voltage of the intra-insulation detector capacitor.Type: ApplicationFiled: August 7, 2018Publication date: November 29, 2018Applicant: Mitsubishi Electric CorporationInventors: Taichiro TAMIDA, Masayuki UEMATSU, Akira TANABE, Yoshitomo HAYASHI, Yoji TSUTSUMISHITA, Kosuke TSUJIKAWA
-
Publication number: 20180301877Abstract: In an ignition plug, since a ground electrode is formed in a thin-rod-shape or a mesh-like shape, sufficiently strong radicals are locally generated by a barrier discharge, an anti-inflammation effect by the electrode is small, and the growth of a flame is hardly hindered. Furthermore, by making the thickness dimension of a second dielectric facing a discharge region uniform, the barrier discharge is spread over the surface of the second dielectric, the generation of the radicals is maintained, and combustibility after ignition is promoted. Furthermore, because an end portion of a high voltage electrode and a ground electrode are disposed to face each other within a combustion chamber, a fuel gas introduced into the combustion chamber is liable to flow into the discharge region, and is easily ignited by the radicals generated due to the discharge.Type: ApplicationFiled: October 7, 2016Publication date: October 18, 2018Applicants: Mitsubishi Electric Corporation, NGK SPARK PLUG CO., LTD.Inventors: Taichiro TAMIDA, Takahiro INOUE, Takashi HASHIMOTO, Akira NAKAGAWA, Tomokazu SAKASHITA, Takayoshi NAGAI, Kimihiko TANAYA, Hiroyuki KAMEDA, Yuichi YAMADA, Kenji BAN
-
Patent number: 10096972Abstract: A current control device for controlling, on the basis of a current command value input from an external device, a light-emitting unit current flowing from a power supply device to a light-emitting unit that includes one or a plurality of laser diodes, includes: a switching element coupled in parallel to the light-emitting unit; and a pulse-width-modulation control circuit unit to provide pulse width modulation control of the switching element in a case in which an output current output from the power supply device is greater than a present current command value or a next current command value upon a start of supply of, upon a termination of supply of, or during supply of, the light-emitting unit current.Type: GrantFiled: December 1, 2015Date of Patent: October 9, 2018Assignee: Mitsubishi Electric CorporationInventors: Shingo Tsuda, Takeshi Morimoto, Taichiro Tamida, Takashi Hashimoto
-
Publication number: 20180283323Abstract: An ozone generator and an internal combustion engine with the ozone generator that can raise ozone additive rate of whole intake air, while suppressing pressure loss in the intake pipe from increasing. The internal combustion engine with an ozone generator includes a tubular intake pipe, through an inner region of which air flows, an ozone generator having an electrode plate that makes ozone and is disposed in the inner region or in the intake pipe, and a limiter that limits the flow of air in the inner region of the intake pipe; the electrode plate has a planar dielectric and high-voltage-side and low-voltage-side electrodes adhered and fixed to the dielectric and is formed in a shape of a plate extending in a direction in which air flows.Type: ApplicationFiled: August 31, 2016Publication date: October 4, 2018Applicant: Mitsubishi Electric CorporationInventors: Noboru WADA, Takahiro INOUE, Taichiro TAMIDA, Yasutaka INANAGA, Takashi HASHIMOTO, Koji WADA, Tetsuya HONDA
-
Publication number: 20180278018Abstract: A current control device for controlling, on the basis of a current command value input from an external device, a light-emitting unit current flowing from a power supply device to a light-emitting unit that includes one or a plurality of laser diodes, includes: a switching element coupled in parallel to the light-emitting unit; and a pulse-width-modulation control circuit unit to provide pulse width modulation control of the switching element in a case in which an output current output from the power supply device is greater than a present current command value or a next current command value upon a start of supply of, upon a termination of supply of, or during supply of, the light-emitting unit current.Type: ApplicationFiled: December 1, 2015Publication date: September 27, 2018Applicant: Mitsubishi Electric CorporationInventors: Shingo TSUDA, Takeshi MORIMOTO, Taichiro TAMIDA, Takashi HASHIMOTO
-
Publication number: 20180097336Abstract: A power supply apparatus includes a power supply for supplying power to a laser oscillator. A reactor has one end serially connected to the laser oscillator and another end serially connected to the power supply, and a parallel diode configures a closed circuit for serial connection of the laser oscillator and the reactor. A current detector detects a current flowing in the reactor, and a first switching device is connected in parallel to the laser oscillator and drives the laser oscillator with pulses. An energy consumption circuit prefetches a current command value based on a control signal from a controller upon driving the laser oscillator with pulses, and when the current command value is smaller than a current command value of a previous pulse, the energy consumption circuit consumes energy until the current command value reaches a predetermined target current value.Type: ApplicationFiled: February 18, 2016Publication date: April 5, 2018Applicant: Mitsubishi Electric CorporationInventors: Shingo TSUDA, Taichiro TAMIDA, Takashi HASHIMOTO, Takeshi Morimoto
-
Patent number: 9550245Abstract: An electric discharge machining apparatus includes: electrodes the total quantity of which is equal to N; an alternating-current power source; and capacitors the total quantity of which is equal to N. The alternating-current power source applies an alternating voltage commonly to the electrodes. One end of each of the capacitors is connected to a corresponding one of the electrodes, whereas the other ends of the capacitors are commonly connected to the alternating-current power source.Type: GrantFiled: July 23, 2009Date of Patent: January 24, 2017Assignee: Mitsubishi Electric CorporationInventors: Taichiro Tamida, Takashi Hashimoto, Akihiko Iwata, Tatsushi Sato
-
Publication number: 20160377670Abstract: An insulation detector for highly accurately detecting or measuring, with a simple configuration, insulation resistance of a load or an apparatus to a ground or a housing and connected to an electric apparatus including one or both of an intra-apparatus capacitor and a battery, the insulation detector including an intra-insulation detector capacitor, a voltage detecting unit that detects a voltage of the intra-insulation detector capacitor, and a current-path forming switch for connecting the ground or the housing, the intra-apparatus capacitor, and the intra-insulation detector capacitor in series and forming a current path including insulation resistance of the electric apparatus. The insulation detector measures the insulation resistance by measuring a time constant of a change in the voltage of the intra-insulation detector capacitor.Type: ApplicationFiled: October 28, 2014Publication date: December 29, 2016Applicant: Mitsubishi Electric CorporationInventors: Taichiro TAMIDA, Masayuki UEMATSU, Akira TANABE, Yoshitomo HAYASHI, Yoji TSUTSUMISHITA, Kosuke TSUJIKAWA
-
Publication number: 20160354851Abstract: An electric discharge machining apparatus includes: electrodes E1 to En the total quantity of which is equal to N; an alternating-current power source G; and capacitors C1 to Cn the total quantity of which is equal to N. The alternating-current power source G applies an alternating voltage commonly to the electrodes E1 to En. One end of each of the capacitors C1 to Cn is connected to a corresponding one of the electrodes E1 to En, whereas the other ends of the capacitors C1 to Cn are commonly connected to the alternating-current power source G.Type: ApplicationFiled: August 22, 2016Publication date: December 8, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Taichiro TAMIDA, Takashi HASHIMOTO, Akihiko IWATA, Tatsushi SATO
-
Patent number: 8896316Abstract: In a device having capacitive loads in which a plurality of capacitive loads are connected in parallel, power is supplied from an AC power source to a load group comprising the plurality of capacitive loads, the load group is divided into a plurality of small load groups, and a current detecting sensor for detecting a current which flows in at least one small load group at a side which is closer to the load side than a branch point at which the load group is divided into the plurality of small load groups and a current abnormality detecting part for determining an abnormality of a load by a current detecting signal which is detected by the current detecting sensor are equipped.Type: GrantFiled: June 17, 2010Date of Patent: November 25, 2014Assignee: Mitsubshi Electric CorporationInventors: Kazutoshi Kurahashi, Takashi Kumagai, Taichiro Tamida, Hajime Nakatani, Daisuke Takauchi
-
Patent number: 8735763Abstract: A switching element operates to be turned on or off at a frequency in the order of megahertz. A reactor supplies a resonance current generated by resonance of the reactor with a floating capacitance between electrodes to between the electrodes. The resonance current does not flow in a direct-current power supply. By turning a capacitor and a floating inductance into a serial resonant state, the reactor ideally supplies the resonance current to between the electrodes without influence of the floating inductance. A high-frequency voltage asymmetric in positive and negative polarities is applied to between the electrodes and a current pulse can be made into a short pulse. Therefore, finish machining with high surface roughness can be performed.Type: GrantFiled: March 9, 2009Date of Patent: May 27, 2014Assignee: Mitsubishi Electric CorporationInventors: Takashi Hashimoto, Taichiro Tamida, Takayoshi Nagai
-
Publication number: 20120319696Abstract: In a device having capacitive loads in which a plurality of capacitive loads are connected in parallel, power is supplied from an AC power source to a load group comprising the plurality of capacitive loads, the load group is divided into a plurality of small load groups, and a current detecting sensor for detecting a current which flows in at least one small load group at a side which is closer to the load side than a branch point at which the load group is divided into the plurality of small load groups and a current abnormality detecting part for determining an abnormality of a load by a current detecting signal which is detected by the current detecting sensor are equipped.Type: ApplicationFiled: June 17, 2010Publication date: December 20, 2012Applicant: Mitsubishi Electric CorporationInventors: Kazutoshi Kurahashi, Takashi Kumagai, Taichiro Tamida, Hajime Nakatani, Daisuke Takauchi
-
Publication number: 20110163071Abstract: A switching element operates to be turned on or off at a frequency in the order of megahertz. A reactor supplies a resonance current generated by resonance of the reactor with a floating capacitance between electrodes to between the electrodes. The resonance current does not flow in a direct-current power supply. By turning a capacitor and a floating inductance into a serial resonant state, the reactor ideally supplies the resonance current to between the electrodes without influence of the floating inductance. A high-frequency voltage asymmetric in positive and negative polarities is applied to between the electrodes and a current pulse can be made into a short pulse. Therefore, finish machining with high surface roughness can be performed.Type: ApplicationFiled: March 9, 2009Publication date: July 7, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Hashimoto, Taichiro Tamida, Takayoshi Nagai
-
Publication number: 20110114604Abstract: An electric discharge machining apparatus includes: electrodes the total quantity of which is equal to N; an alternating-current power source; and capacitors the total quantity of which is equal to N. The alternating-current power source applies an alternating voltage commonly to the electrodes. One end of each of the capacitors is connected to a corresponding one of the electrodes, whereas the other ends of the capacitors are commonly connected to the alternating-current power source.Type: ApplicationFiled: July 23, 2009Publication date: May 19, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Taichiro Tamida, Takashi Hashimoto, Akihiko Iwata, Tatsushi Sato
-
Patent number: 7922979Abstract: A silent discharge plasma apparatus includes a dielectric member, a pair of electrodes opposed to each other across the dielectric member and an alternating-current source applying an alternating-current voltage between the electrodes and causing a discharge. A gas is supplied to a discharge space, where discharge occurs, and a plasma is produced. At least one of the electrodes includes a conductive power feeding thin film on the dielectric member. When the dielectric member is destroyed and an arc discharge develops between the electrodes, the power feeding thin film is eliminated or oxidized, and the arc discharge is stopped.Type: GrantFiled: March 16, 2006Date of Patent: April 12, 2011Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noboru Wada, Masaki Kuzumoto, Hajime Nakatani, Hiroyuki Igehara, Norimitsu Esaki, Shingo Mine, Taichiro Tamida
-
Patent number: 7598678Abstract: A lamp lighting apparatus includes an arc spot movement detector (5) for monitoring an DC voltage Vb which is the bus voltage of an inverter (3), and for detecting a movement of an arc spot which appears before a lamp 1 enters a state where human beings can recognize a flicker of the lamp (1), and, when the arc spot movement detector (5) detects a movement of the arc spot, controls a switch (2a) of a DCDC converter (2) so as to suppress the movement of the arc spot.Type: GrantFiled: July 26, 2006Date of Patent: October 6, 2009Assignee: Mitsubishi Electric CorporationInventors: Shigeki Harada, Taichiro Tamida, Akihiko Iwata
-
Publication number: 20090236042Abstract: A silent discharge plasma apparatus includes a dielectric member, a pair of electrodes opposed to each other across the dielectric member and an alternating-current source applying an alternating-current voltage between the electrodes and causing a discharge. A gas is supplied to a discharge space, where discharge occurs, and a plasma is produced. At least one of the electrodes includes a conductive power feeding thin film on the dielectric member. When the dielectric member is destroyed and an arc discharge develops between the electrodes, the power feeding thin film is eliminated or oxidized, and the arc discharge is stopped.Type: ApplicationFiled: March 16, 2006Publication date: September 24, 2009Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Noboru Wada, Masaki Kuzumoto, Hajime Nakatani, Hiroyuki Igehara, Norimitsu Esaki, Shingo Mine, Taichiro Tamida