Patents by Inventor Hiroto Ado
Hiroto Ado 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: 11456540Abstract: An antenna device includes a main reflector (11), a sub-reflector (12) including sub-reflector panels and having a reflecting surface facing a reflecting surface of the main reflector, and a primary emitter (13) to receive a radio wave reflected by the sub-reflector (12). Each of sub-reflector panel drive mechanisms coupled to the sub-reflector panels is finely driven. A phase calculator (171) calculates a relative phase of an element electric-field vector corresponding to each of the sub-reflector panels based on a change in received electric-field strength of the radio wave received by the primary emitter (13) during driving of the sub-reflector panel drive mechanisms, and determines positions of the sub-reflector panels at which a phase distribution on an aperture surface of the main reflector (11) is minimized.Type: GrantFiled: August 8, 2019Date of Patent: September 27, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroto Ado, Shuji Nuimura, Tomohiro Mizuno
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Publication number: 20220052459Abstract: An antenna device includes a main reflector (11), a sub-reflector (12) including sub-reflector panels and having a reflecting surface facing a reflecting surface of the main reflector, and a primary emitter (13) to receive a radio wave reflected by the sub-reflector (12). Each of sub-reflector panel drive mechanisms coupled to the sub-reflector panels is finely driven. A phase calculator (171) calculates a relative phase of an element electric-field vector corresponding to each of the sub-reflector panels based on a change in received electric-field strength of the radio wave received by the primary emitter (13) during driving of the sub-reflector panel drive mechanisms, and determines positions of the sub-reflector panels at which a phase distribution on an aperture surface of the main reflector (11) is minimized.Type: ApplicationFiled: August 8, 2019Publication date: February 17, 2022Applicant: Mitsubishi Electric CorporationInventors: Hiroto ADO, Shuji NUIMURA, Tomohiro MIZUNO
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Publication number: 20220045412Abstract: A polarized waveguide filter is formed in which the polarized waveguide filter includes a first rectangular waveguide; a second rectangular waveguide; and a rectangular cavity resonator that has a first edge surface connected to an electromagnetic wave exit plane of the first rectangular waveguide via a coupling unit, and has a second edge surface facing the first edge surface and connected to an electromagnetic wave incident plane of the second rectangular waveguide via a coupling unit, and excites each of a TE10 mode and a TE20 mode of an electromagnetic wave, and the rectangular cavity resonator has two first wall surfaces and two second wall surfaces narrower in area than the first wall surfaces, and a protrusion that shifts a resonance frequency of the TE10 mode and a resonance frequency of the TE20 mode by respective amounts different from each other is provided on at least one of the two first wall surfaces, in such a way as to protrude outward from the rectangular cavity resonator.Type: ApplicationFiled: October 26, 2021Publication date: February 10, 2022Applicant: Mitsubishi Electric CorporationInventors: Hidenori YUKAWA, Ryuya SEKI, Hiroto ADO, Hiromasa NAKAJIMA, Yu USHIJIMA, Toru TAKAHASHI
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Patent number: 10938118Abstract: There are provided a plurality of poles whose roots are connected to a central part and whose tips extend in mutually different directions on an identical plane or on an identical curved surface, wherein a pole width at each of the roots is narrower than a pole width between each of the roots and the corresponding one of the tips, and a pole width at each of the tips is narrower that the pole width between each of the roots and the corresponding one of the tips, each pole width being defined by a length of a line segment in a direction perpendicular, on the identical plane or on the identical curved surface, to a line segment connecting each of the roots to a corresponding one of the tips in the respective poles.Type: GrantFiled: April 8, 2016Date of Patent: March 2, 2021Assignee: Mitsubishi Electric CorporationInventors: Michio Takikawa, Hiroto Ado, Masashi Okuno, Yoshio Inasawa
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Publication number: 20190058258Abstract: There are provided a plurality of poles whose roots are connected to a central part and whose tips extend in mutually different directions on an identical plane or on an identical curved surface, wherein a pole width at each of the roots is narrower than a pole width between each of the roots and the corresponding one of the tips, and a pole width at each of the tips is narrower that the pole width between each of the roots and the corresponding one of the tips, each pole width being defined by a length of a line segment in a direction perpendicular, on the identical plane or on the identical curved surface, to a line segment connecting each of the roots to a corresponding one of the tips in the respective poles.Type: ApplicationFiled: April 8, 2016Publication date: February 21, 2019Applicant: Mitsubishi Electric CorporationInventors: Michio TAKIKAWA, Hiroto ADO, Masashi OKUNO, Yoshio INASAWA
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Patent number: 10090604Abstract: An antenna device includes a main-reflector including a main-reflector hole, an additional main-reflector, a sub-reflector, and an additional sub-reflector. The main-reflector surrounds an outer edge of the additional main-reflector, and has a reflective surface on the same side as the additional main-reflector. The sub-reflector faces the main-reflector hole on the reflective surface side of the additional main-reflector, and has a reflective surface facing the reflective surface of the additional main-reflector. The additional sub-reflector surrounds an outer edge of the sub-reflector, and has a reflective surface on the same side as the sub-reflector.Type: GrantFiled: April 22, 2016Date of Patent: October 2, 2018Assignee: Mitsubishi Electric CorporationInventors: Tomohiro Mizuno, Noboru Kawaguchi, Takashi Takanezawa, Hidenobu Nishihara, Hiroto Ado
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Publication number: 20180097291Abstract: An antenna device includes a main-reflector including a main-reflector hole, an additional main-reflector, a sub-reflector, and an additional sub-reflector. The main-reflector surrounds an outer edge of the additional main-reflector, and has a reflective surface on the same side as the additional main-reflector. The sub-reflector faces the main-reflector hole on the reflective surface side of the additional main-reflector, and has a reflective surface facing the reflective surface of the additional main-reflector. The additional sub-reflector surrounds an outer edge of the sub-reflector, and has a reflective surface on the same side as the sub-reflector.Type: ApplicationFiled: April 22, 2016Publication date: April 5, 2018Applicant: Mitsubishi Electric CorporationInventors: Tomohiro MIZUNO, Noboru KAWAGUCHI, Takashi TAKANEZAWA, Hidenobu NISHIHARA, Hiroto ADO
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Patent number: 9000861Abstract: A polarization coupler includes: connector waveguide that connects circular waveguide with quadrangular waveguide arranged in an axial direction of circular waveguide and having short side shorter than an inner diameter of circular waveguide; flat conductor wall formed over connector and circular waveguides, and dividing the inside of connector and circular waveguides arranged parallel to an extending direction of long side of quadrangular waveguide; first inclined surface formed on inner wall of connector waveguide at a position facing one surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; second inclined surface formed on the inner wall of connector waveguide at a position facing the other surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; and coupling hole, formed in circular waveguide, for extracting one polarization-divided by conductor wall out of electromagnetic waves propagated through circulaType: GrantFiled: November 16, 2012Date of Patent: April 7, 2015Assignee: Mitsubishi Electric CorporationInventors: Hiroto Ado, Shuji Nuimura, Tomohiro Mizuno, Hidenori Yukawa, Tetsu Owada, Takaaki Kimata
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Publication number: 20140197908Abstract: A polarization coupler includes: connector waveguide that connects circular waveguide with quadrangular waveguide arranged in an axial direction of circular waveguide and having short side shorter than an inner diameter of circular waveguide; flat conductor wall formed over connector and circular waveguides, and dividing the inside of connector and circular waveguides arranged parallel to an extending direction of long side of quadrangular waveguide; first inclined surface formed on inner wall of connector waveguide at a position facing one surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; second inclined surface formed on the inner wall of connector waveguide at a position facing the other surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; and coupling hole, formed in circular waveguide, for extracting one polarization-divided by conductor wall out of electromagnetic waves propagated through circulaType: ApplicationFiled: November 16, 2012Publication date: July 17, 2014Applicant: Mitsubishi Electric CorporationInventors: Hiroto Ado, Shuji Nuimura, Tomohiro Mizuno, Hidenori Yukawa, Tetsu Owada, Takaaki Kimata
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Patent number: D842279Type: GrantFiled: September 7, 2016Date of Patent: March 5, 2019Assignee: Mitsubishi Electric CorporationInventors: Michio Takikawa, Hiroto Ado, Masashi Okuno, Yoshio Inasawa
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Patent number: D843986Type: GrantFiled: July 9, 2018Date of Patent: March 26, 2019Assignee: Mitsubishi Electric CorporationInventors: Michio Takikawa, Hiroto Ado, Masashi Okuno, Yoshio Inasawa
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Patent number: D843987Type: GrantFiled: July 9, 2018Date of Patent: March 26, 2019Assignee: Mitsubishi Electric CorporationInventors: Michio Takikawa, Hiroto Ado, Masashi Okuno, Yoshio Inasawa
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Patent number: D844591Type: GrantFiled: July 9, 2018Date of Patent: April 2, 2019Assignee: Mitsubishi Electric CorporationInventors: Michio Takikawa, Hiroto Ado, Masashi Okuno, Yoshio Inasawa