Patents by Inventor Makoto Miyashita
Makoto Miyashita 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: 11367585Abstract: A direct-current circuit breaker includes a first main circuit breaker inserted into a first direct-current line, a resonance circuit connected in parallel to the first main circuit breaker, a MOSA connected in parallel to the first main circuit breaker via the resonance circuit, a second main circuit breaker inserted into a second direct-current line, a switch connected in series to the second main circuit breaker, a resonance circuit connected in parallel to the second main circuit breaker, and a MOSA connected in parallel to the second main circuit breaker via the resonance circuit. The second direct-current line is a line that branches off from the first direct-current line and returns to the first direct-current line. The switch is inserted upstream of the second direct-current line.Type: GrantFiled: July 11, 2017Date of Patent: June 21, 2022Assignee: Mitsubishi Electric CorporationInventors: Takashi Inagaki, Sho Tokoyoda, Kenji Kamei, Ryo Kimura, Makoto Miyashita
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Publication number: 20210134544Abstract: A direct-current circuit breaker includes a first main circuit breaker inserted into a first direct-current line, a resonance circuit connected in parallel to the first main circuit breaker, a MOSA connected in parallel to the first main circuit breaker via the resonance circuit, a second main circuit breaker inserted into a second direct-current line, a switch connected in series to the second main circuit breaker, a resonance circuit connected in parallel to the second main circuit breaker, and a MOSA connected in parallel to the second main circuit breaker via the resonance circuit. The second direct-current line is a line that branches off from the first direct-current line and returns to the first direct-current line. The switch is inserted upstream of the second direct-current line.Type: ApplicationFiled: July 11, 2017Publication date: May 6, 2021Applicant: Mitsubishi Electric CorporationInventors: Takashi INAGAKI, Sho TOKOYODA, Kenji KAMEI, Ryo KIMURA, Makoto MIYASHITA
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Patent number: 10403449Abstract: A direct-current circuit includes: a breaker that is inserted into the direct-current line and becomes a path for direct current when in a steady state; a resonance circuit connected in parallel with the breaker and superimposing resonance current on the direct current; and a first disconnector and a second disconnector connected to first and second connection points of the breaker and the resonance circuit, respectively, and forming a path for the direct current together with the breaker. The resonance circuit includes a series circuit that includes a capacitor and a reactor and generates the resonance current, a charging resistor for charging the capacitor with a direct-current potential of the direct-current line, a high-speed switch connected in series with the series circuit on the capacitor side and superimposing the resonance current on the direct current, and an arrester connected in parallel with the capacitor and the high-speed switch.Type: GrantFiled: June 10, 2015Date of Patent: September 3, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Shiken Ka, Hiroki Ito, Kunio Kikuchi, Makoto Miyashita, Kazuyori Tahata, Sho Tokoyoda, Kenji Kamei
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Publication number: 20190027327Abstract: A direct current circuit breaker used in a self-commutated direct current power transmission system includes a high-speed circuit breaker and a low-speed circuit breaker connected in series. The high-speed circuit breaker includes a high-speed circuit breaker interruption unit to interrupt a DC current flowing through a direct current line when a fault has occurred, and a current limiting element connected in parallel therewith. The low-speed circuit breaker includes a low-speed circuit breaker interruption unit to interrupt a DC current when a fault has occurred. A time required for the high-speed circuit breaker interruption unit to interrupt the DC current is shorter than a time required for the low-speed circuit breaker interruption unit. The low-speed circuit breaker interruption unit completes interruption of the DC current before a voltage applied to the current limiting element becomes lower than a minimum voltage allowable for the system.Type: ApplicationFiled: February 5, 2016Publication date: January 24, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuyori TAHATA, Kunio KIKUCHI, Makoto MIYASHITA, Kenji KAMEI, Sho TOKOYODA
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Patent number: 10184452Abstract: A wind power generation system according to the present invention includes: a DC bus; a plurality of feeders connected to the DC bus for transmitting DC powers to the DC bus; a plurality of wind power generators; a plurality of AC/DC converters connected one by one to each of the wind power generators for converting AC powers generated by the connected wind power generators, into DC powers, and outputting the DC powers to the feeders; and a DC breaker and a diode, which serve as a current limiting unit installed on each of the feeders for preventing a DC current from flowing from the DC bus into the feeder.Type: GrantFiled: September 16, 2014Date of Patent: January 22, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuyori Tahata, Kunio Kikuchi, Makoto Miyashita, Kenji Kamei, Sho Tokoyoda
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Patent number: 10067529Abstract: A display device of the present invention includes a body stand unit; a display displaying unit; and an arm unit, arranged upright from the body stand unit, for supporting the display displaying unit; where the arm unit is arranged on either left or right end side from a center in a horizontal direction of the display displaying unit, and supports the display displaying unit in a cantilever state.Type: GrantFiled: February 2, 2017Date of Patent: September 4, 2018Assignee: SONY CORPORATIONInventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama
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Patent number: 9960383Abstract: A display device in the present invention includes a display panel (320) which is provided with a display screen, a T-substrate (350) which is arranged in a predetermined range narrower than the display panel (320) at the back side of the display panel (320), first flexible printed circuit substrates (450) which extend downward from the upper end of the display panel (320) and are connected to the T-substrate (350), and second flexible printed circuit substrates (460) which extend upward from the lower end of the display panel (320) and are connected to the T-substrate (350) in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.Type: GrantFiled: January 25, 2017Date of Patent: May 1, 2018Assignee: SONY CORPORATIONInventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama
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Publication number: 20170306928Abstract: A wind power generation system according to the present invention includes: a DC bus; a plurality of feeders connected to the DC bus for transmitting DC powers to the DC bus; a plurality of wind power generators; a plurality of AC/DC converters connected one by one to each of the wind power generators for converting AC powers generated by the connected wind power generators, into DC powers, and outputting the DC powers to the feeders; and a DC breaker and a diode, which serve as a current limiting unit installed on each of the feeders for preventing a DC current from flowing from the DC bus into the feeder.Type: ApplicationFiled: September 16, 2014Publication date: October 26, 2017Applicant: Mitsubishi Electric CorporationInventors: Kazuyori TAHATA, Kunio KIKUCHI, Makoto MIYASHITA, Kenji KAMEI, Sho TOKOYODA
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Patent number: 9800171Abstract: An AC circuit breaker is provided between an AC system and an AC-DC converter, and a DC circuit breaker is provided between a DC line and the AC-DC converter. A bypass switch capable of short-circuiting a converter cell included in the AC-DC converter is connected to the AC-DC converter. At the time of a fault in the DC line, the bypass switch is turned on to interrupt the supply of DC power from the AC system to the DC line.Type: GrantFiled: February 14, 2014Date of Patent: October 24, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuyori Tahata, Hiroki Ito, Kunio Kikuchi, Makoto Miyashita, Kenji Kamei
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Publication number: 20170271100Abstract: A direct-current circuit includes: a breaker that is inserted into the direct-current line and becomes a path for direct current when in a steady state; a resonance circuit connected in parallel with the breaker and superimposing resonance current on the direct current; and a first disconnector and a second disconnector connected to first and second connection points of the breaker and the resonance circuit, respectively, and forming a path for the direct current together with the breaker. The resonance circuit includes a series circuit that includes a capacitor and a reactor and generates the resonance current, a charging resistor for charging the capacitor with a direct-current potential of the direct-current line, a high-speed switch connected in series with the series circuit on the capacitor side and superimposing the resonance current on the direct current, and an arrester connected in parallel with the capacitor and the high-speed switch.Type: ApplicationFiled: June 10, 2015Publication date: September 21, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shiken KA, Hiroki ITO, Kunio KIKUCHI, Makoto MIYASHITA, Kazuyori TAHATA, Sho TOKOYODA, Kenji KAMEI
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Publication number: 20170228333Abstract: A configuration in which both record/reproduction data and a security command can be transferred between a host and a recording device connected to the host is implemented. A USB reader/writer includes a USB-A connector and a USB-micro B connector, and when a power supply host is connected to the USB-micro B connector, and a recording medium is mounted into the USB-A connector side, the reader/writer control unit transfers record/reproduction data of the recording medium through a mass storage class supporting data transfer unit, and transfers a security command applied to an authentication process or the like through a non-mass storage class supporting data transfer unit. The host equipped with the USB reader/writer performs data transfer of different categories using two paths, that is, a record/reproduction data path and a security command path.Type: ApplicationFiled: July 24, 2015Publication date: August 10, 2017Applicant: SONY CORPORATIONInventors: Takamichi HAYASHI, Hiroshi KUNO, Makoto MIYASHITA, Munetake EBIHARA
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Publication number: 20170200912Abstract: A display device in the present invention includes a display panel (320) which is provided with a display screen, a T-substrate (350) which is arranged in a predetermined range narrower than the display panel (320) at the back side of the display panel (320), first flexible printed circuit substrates (450) which extend downward from the upper end of the display panel (320) and are connected to the T-substrate (350), and second flexible printed circuit substrates (460) which extend upward from the lower end of the display panel (320) and are connected to the T-substrate (350) in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.Type: ApplicationFiled: January 25, 2017Publication date: July 13, 2017Inventors: Tatsuya SAKATA, Makoto MIYASHITA, Toyoki TAKAHASHI, Daiki ADACHI, Sachiko KOYAMA
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Publication number: 20170163170Abstract: A traction motor comprises a stator, a rotor core, an iron core holder, a cooling fan, a rotor, a frame, a bracket, and a bearing unit. The cooling fan includes a main plate that separates the inside and the outside of the totally-enclosed traction motor; blades provided on the bracket side of the cooling fan and along a rotational direction of the rotor; and a guide provided on the bracket side of the blades. In the bracket, inlets are provided within an area obtained when the guide is projected onto the bracket. The guide is formed such that air drawn in through the inlets is guided to a rotor shaft.Type: ApplicationFiled: February 14, 2014Publication date: June 8, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuyori TAHATA, Hiroki ITO, Kunio KIKUCHI, Makoto MIYASHITA, Kenji KAMEI
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Publication number: 20170147031Abstract: A display device of the present invention includes a body stand unit; a display displaying unit; and an arm unit, arranged upright from the body stand unit, for supporting the display displaying unit; where the arm unit is arranged on either left or right end side from a center in a horizontal direction of the display displaying unit, and supports the display displaying unit in a cantilever state.Type: ApplicationFiled: February 2, 2017Publication date: May 25, 2017Inventors: Tatsuya SAKATA, Makoto MIYASHITA, Toyoki TAKAHASHI, Daiki ADACHI, Sachiko KOYAMA
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Patent number: 9609771Abstract: A display device in the present invention includes a display panel which is provided with a display screen, a I-substrate which is arranged in a predetermined range narrower than the display panel at the back side of the display panel, first flexible printed circuit substrates which extend downward from the upper end of the display panel and are connected to the T-substrate, and second flexible printed circuit substrates which extend upward from the lower end of the display panel and are connected to the T-substrate in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.Type: GrantFiled: May 12, 2015Date of Patent: March 28, 2017Assignee: SONY CORPORATIONInventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama
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Patent number: 9609699Abstract: A display device of the present invention includes a body stand unit; a display displaying unit; and an arm unit, arranged upright from the body stand unit, for supporting the display displaying unit; where the arm unit is arranged on either left or right end side from a center in a horizontal direction of the display displaying unit, and supports the display displaying unit in a cantilever state.Type: GrantFiled: June 21, 2013Date of Patent: March 28, 2017Assignee: SONY CORPORATIONInventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama
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Publication number: 20150313031Abstract: A display device in the present invention includes a display panel which is provided with a display screen, a I-substrate which is arranged in a predetermined range narrower than the display panel at the back side of the display panel, first flexible printed circuit substrates which extend downward from the upper end of the display panel and are connected to the T-substrate, and second flexible printed circuit substrates which extend upward from the lower end of the display panel and are connected to the T-substrate in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.Type: ApplicationFiled: May 12, 2015Publication date: October 29, 2015Inventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama
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Patent number: 9066414Abstract: A display device in the present invention includes a display panel which is provided with a display screen, a T-substrate which is arranged in a predetermined range narrower than the display panel at the back side of the display panel, first flexible printed circuit substrates which extend downward from the upper end of the display panel and are connected to the T-substrate, and second flexible printed circuit substrates which extend upward from the lower end of the display panel and are connected to the T-substrate in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.Type: GrantFiled: August 9, 2013Date of Patent: June 23, 2015Assignee: SONY CORPORATIONInventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama
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Publication number: 20140299349Abstract: A high-speed signal transmission cable includes a coaxial wire assembly, a shield layer arranged around an outer periphery of the coaxial wire assembly, and a sheath, arranged around as the outermost layer. Each coaxial wire includes an inner conductor, a hollow core member, and an outer conductor. The outer conductor is formed by longitudinally adding a metal foil or a plastic tape having a metal layer on an outer periphery of the hollow core member. The high-speed signal transmission cable can suitably transmit a high-speed digital signal of 10 Gbps and above, and its characteristics do not degrade easily even if it is used on multiple cores twist structure or bending. Therefore, the high-speed signal transmission cable can be used in environments that require high-speed transmission of digital signals.Type: ApplicationFiled: November 9, 2012Publication date: October 9, 2014Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Tadashi Yamaguchi, Shigehiro Sasai, Makoto Miyashita, Akihiro Sakaguchi, Shigeo Hayashi
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Publication number: 20130322033Abstract: A display device in the present invention includes a display panel which is provided with a display screen, a T-substrate which is arranged in a predetermined range narrower than the display panel at the back side of the display panel, first flexible printed circuit substrates which extend downward from the upper end of the display panel and are connected to the T-substrate, and second flexible printed circuit substrates which extend upward from the lower end of the display panel and are connected to the T-substrate in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.Type: ApplicationFiled: August 9, 2013Publication date: December 5, 2013Applicant: SONY CORPORATIONInventors: Tatsuya Sakata, Makoto Miyashita, Toyoki Takahashi, Daiki Adachi, Sachiko Koyama