Patents by Inventor Noritaka KITADA
Noritaka KITADA 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: 11211678Abstract: Provided is a dual-band resonator which can be downsized further than conventional ones. A dual-band resonator is provided with a first conductor and a second conductor. The first conductor is configured to be folded at a first folding part at the center so that both extensions are in a prescribed direction and adjacent to one another with a prescribed space therebetween, wherein a conductor part closer to one end side than the first folding part and a conductor part closer to the other end side than the first folding part are further folded at second folding parts between the one end and the first folding part and between the other end and the first folding part, respectively, in a direction in which the one end and the other end are apart from each other. The second conductor extends in a prescribed direction contiguously to the first folding part of the first conductor. The first conductor constitutes a half-wavelength resonator, and odd-mode resonance occurs in the first conductor.Type: GrantFiled: April 27, 2018Date of Patent: December 28, 2021Assignees: TOKYO KEIKI INC., THE JAPAN STEEL WORKS, LTD., UNIVERSITY OF YAMANASHIInventors: Naoto Sekiya, Takahiro Unno, Tsutomu Tsuruoka, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
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Publication number: 20200194856Abstract: Provided is a dual-band resonator which can be downsized further than conventional ones. A dual-band resonator is provided with a first conductor and a second conductor. The first conductor is configured to be folded at a first folding part at the center so that both extensions are in a prescribed direction and adjacent to one another with a prescribed space therebetween, wherein a conductor part closer to one end side than the first folding part and a conductor part closer to the other end side than the first folding part are further folded at second folding parts between the one end and the first folding part and between the other end and the first folding part, respectively, in a direction in which the one end and the other end are apart from each other. The second conductor extends in a prescribed direction contiguously to the first folding part of the first conductor. The first conductor constitutes a half-wavelength resonator, and odd-mode resonance occurs in the first conductor.Type: ApplicationFiled: April 27, 2018Publication date: June 18, 2020Inventors: Naoto SEKIYA, Takahiro UNNO, Tsutomu TSURUOKA, Kazuhito KISHIDA, Yasuo SATO, Noritaka KITADA
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Patent number: 10629974Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.Type: GrantFiled: April 18, 2018Date of Patent: April 21, 2020Assignees: UNIVERSITY OF YAMANASHI, THE JAPAN STEEL WORKS, LTD.Inventors: Naoto Sekiya, Katsuhiro Terao, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
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Publication number: 20180241108Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.Type: ApplicationFiled: April 18, 2018Publication date: August 23, 2018Inventors: Naoto SEKIYA, Katsuhiro TERAO, Kazuhito KISHIDA, Yasuo SATO, Noritaka KITADA
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Patent number: 9979064Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.Type: GrantFiled: July 24, 2015Date of Patent: May 22, 2018Assignees: UNIVERSITY OF YAMANASHI, THE JAPAN STEEL WORKS, LTD.Inventors: Naoto Sekiya, Katsuhiro Terao, Kazuhito Kishida, Yasuo Sato, Noritaka Kitada
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Publication number: 20170033758Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod circular in cross section is provided in the space above the respective stubs, and another dielectric rod circular in cross section is provided in the space above the half-wavelength resonator protrusions.Type: ApplicationFiled: July 24, 2015Publication date: February 2, 2017Inventors: Naoto SEKIYA, Katsuhiro TERAO, Kazuhito KISHIDA, Yasuo SATO, Noritaka KITADA
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Publication number: 20160164485Abstract: A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod circular in cross section is provided in the space above the respective stubs, and another dielectric rod circular in cross section is provided in the space above the half-wavelength resonator protrusions.Type: ApplicationFiled: July 24, 2015Publication date: June 9, 2016Inventors: Naoto SEKIYA, Katsuhiro TERAO, Kazuhito KISHIDA, Yasuo SATO, Noritaka KITADA