Patents by Inventor Tatsunori Hashimoto
Tatsunori Hashimoto 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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Publication number: 20180074528Abstract: A pressure regulating chamber and an atmospheric pressure chamber are divided with a diaphragm, a pressure regulating lever connected to the diaphragm through a diaphragm pin is included in the pressure regulating chamber, and a valve element provided in a tip end side of the pressure regulating lever regulates a fuel in the pressure regulating chamber to have a predetermined pressure near an atmospheric pressure and sends the fuel while opening or closing a fuel introduction port, as the pressure regulating lever swings following displacement of the diaphragm. Connection on the pressure regulating lever side or connection on the diaphragm side, of the diaphragm pin, is separable within a predetermined range in the atmospheric pressure chamber direction. The diaphragm pin is separated to cancel the connection between the diaphragm and the pressure regulating lever when at least the pressure regulating chamber has a positive pressure of a predetermined level or more.Type: ApplicationFiled: September 11, 2017Publication date: March 15, 2018Inventors: Tatsunori HASHIMOTO, Yukio ISHIDA
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Patent number: 9367812Abstract: Methods and systems for determining the selection criteria that in its embodiments can distinguish compounds that successfully meet an objective from those that do not, determine the importance of selection criterion in selecting test compounds that have a high probability of achieving an objective and automatically apply the selection criteria to select test compounds with a high chance of meeting an objective.Type: GrantFiled: August 25, 2010Date of Patent: June 14, 2016Assignee: Optibrium Ltd.Inventors: Matthew Segall, Tatsunori Hashimoto
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Publication number: 20130173503Abstract: Methods and systems for determining the selection criteria that in its embodiments can distinguish compounds that successfully meet an objective from those that do not, determine the importance of selection criterion in selecting test compounds that have a high probability of achieving an objective and automatically apply the selection criteria to select test compounds with a high chance of meeting an objective.Type: ApplicationFiled: August 25, 2010Publication date: July 4, 2013Inventors: Matthew Segall, Tatsunori Hashimoto
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Patent number: 8040203Abstract: The present invention provides a filter circuit that can achieve both sharp bandpass characteristics and high power handling capability. The filter circuit includes: an input terminal that has a signal input; a four-port device that divides input signals; a band stop filter that has the center frequency of the input signals within the stopband, and causes the out-of-stopband signals among the input signals to pass; two bandstop resonators circuits that cause the signals passing through the band stop filters to pass, and reflect the signals; open ends that are connected in parallel to the two bandstop resonators circuits; and an output terminal that outputs the signals reflected by the band stop filters and the bandstop resonators circuits and combined at the four-port device.Type: GrantFiled: September 10, 2009Date of Patent: October 18, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Tamio Kawaguchi, Hiroyuki Kayano, Tatsunori Hashimoto
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Patent number: 7825751Abstract: In resonant elements 102 to 105 constituting a resonant circuit, an uncontrolled cross coupling which exists between two resonant elements is controlled by using a coupling element 106 which is newly arranged between the resonant elements, whereby it is possible to create a state where two resonant elements are not coupled with each other or a state where the amount of the coupling is reduced, which states are difficult to be realized on a plane. As a result, it is possible to improve characteristics of a planar filter.Type: GrantFiled: May 21, 2007Date of Patent: November 2, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Tamio Kawaguchi, Fumihiko Aiga, Hiroyuki Kayano, Noritsugu Shiokawa, Tatsunori Hashimoto
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Publication number: 20100060378Abstract: The present invention provides a filter circuit that can achieve both sharp bandpass characteristics and high power handling capability. The filter circuit includes: an input terminal that has a signal input; a four-port device that divides input signals; a band stop filter that has the center frequency of the input signals within the stopband, and causes the out-of-stopband signals among the input signals to pass; two bandstop resonators circuits that cause the signals passing through the band stop filters to pass, and reflect the signals; open ends that are connected in parallel to the two bandstop resonators circuits; and an output terminal that outputs the signals reflected by the band stop filters and the bandstop resonators circuits and combined at the four-port device.Type: ApplicationFiled: September 10, 2009Publication date: March 11, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tamio Kawaguchi, Hiroyuki Kayano, Tatsunori Hashimoto
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Patent number: 7613434Abstract: A multiplexer includes: a first band-pass filter for a first channel, which is formed in a microstrip line on a dielectric substrate and has a first branching characteristic having a center frequency of f1 and an attenuation pole at a frequency of fa1; and a second band-pass filter for a second channel, which is formed in a microstrip line on a dielectric substrate and has a second branching characteristic having a center frequency of f2 and an attenuation pole at a frequency of fa2. The following relationships (1) to (5) are satisfied: (1) f1<f2; (2) f1<fa1; (3) fa2<f2; (4) f2?fa1<(f2?f1)/2; and (5) fa2?f1<(f2?f1)/2. The second branching characteristic exhibits ?20 dB or less at the frequency of fa1 and the first branching characteristic exhibits ?20 dB or less at the frequency of fa2.Type: GrantFiled: March 14, 2007Date of Patent: November 3, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Fumihiko Aiga, Hiroyuki Kayano, Tatsunori Hashimoto, Noritsugu Shiokawa
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Patent number: 7411475Abstract: A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed resonance elements, and a prescribed resonance element is coupled with another resonance element by a coupling transmission line. It follows that each resonance element is coupled with another resonance element by the direct coupling via the coupling transmission line or by the spatial coupling via the space.Type: GrantFiled: March 13, 2007Date of Patent: August 12, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Fuke, Yoshiaki Terashima, Fumihiko Aiga, Mutsuki Yamazaki, Hiroyuki Kayano, Tatsunori Hashimoto
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Publication number: 20080055181Abstract: In resonant elements 102 to 105 constituting a resonant circuit, an uncontrolled cross coupling which exists between two resonant elements is controlled by using a coupling element 106 which is newly arranged between the resonant elements, whereby it is possible to create a state where two resonant elements are not coupled with each other or a state where the amount of the coupling is reduced, which states are difficult to be realized on a plane. As a result, it is possible to improve characteristics of a planar filter.Type: ApplicationFiled: May 21, 2007Publication date: March 6, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tamio Kawaguchi, Fumihiko Aiga, Hiroyuki Kayano, Noritsugu Shiokawa, Tatsunori Hashimoto
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Publication number: 20080037590Abstract: A multiplexer includes: a first band-pass filter for a first channel, which is formed in a microstrip line on a dielectric substrate and has a first branching characteristic having a center frequency of f1 and an attenuation pole at a frequency of fa1; and a second band-pass filter for a second channel, which is formed in a microstrip line on a dielectric substrate and has a second branching characteristic having a center frequency of f2 and an attenuation pole at a frequency of fa2. The following relationships (1) to (5) are satisfied: (1) f1<f2; (2) f1<fa1; (3) fa2<f2; (4) f2?fa1<(f2?f1)/2; and (5) fa2?f1<(f2?f1)/2. The second branching characteristic exhibits ?20 dB or less at the frequency of fa1 and the first branching characteristic exhibits ?20 dB or less at the frequency of fa2.Type: ApplicationFiled: March 14, 2007Publication date: February 14, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Fumihiko Aiga, Hiroyuki Kayano, Tatsunori Hashimoto, Noritsugu Shiokawa
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Patent number: 7305261Abstract: A band pass filter which is configured by a microstrip line, or a strip line is provided. The band pass filter has a first half wavelength resonator which resonates at a center frequency of a pass band, a second half wavelength resonator which resonates at the center frequency of the pass band, and a transmission line through which the first half wavelength resonator is wire-coupled to the second half wavelength resonator. A strong coupling can be stably realized without causing deviation of the resonance frequencies of resonators.Type: GrantFiled: May 5, 2004Date of Patent: December 4, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Fumihiko Aiga, Yoshiaki Terashima, Hiroyuki Fuke, Mutsuki Yamazaki, Tatsunori Hashimoto, Hiroyuki Kayano
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Patent number: 7295090Abstract: A filter circuit includes a plurality of resonators connected in parallel and each having loaded Q deviation equal to allowable deviation of a group delay, a divider to divide an input signal to the resonators, a combiner to combine output signals of the resonators, and an opposite phase unit for making signals passing two resonators of the resonators an approximately opposite phase in an output of the combiner, the two resonators having resonance frequencies adjacent to each other, respectively.Type: GrantFiled: June 28, 2005Date of Patent: November 13, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Kayano, Tatsunori Hashimoto
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Publication number: 20070241842Abstract: A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed resonance elements, and a prescribed resonance element is coupled with another resonance element by a coupling transmission line. It follows that each resonance element is coupled with another resonance element by the direct coupling via the coupling transmission line or by the spatial coupling via the space.Type: ApplicationFiled: March 13, 2007Publication date: October 18, 2007Applicant: Kabushiki Kaisha ToshibaInventors: Hiroyuki Fuke, Yoshiaki Terashima, Fumihiko Aiga, Mutsuki Yamazaki, Hiroyuki Kayano, Tatsunori Hashimoto
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Publication number: 20070229201Abstract: In a filter circuit, a conductor layer is formed on one side of a dielectric substrate, and a resonator pattern of resonators, input and sections are formed of micro strip lines on the other side of the dielectric substrate. A transmission line coupling the resonators and is also formed of a micro strip line on the other side. An open stub branches off from the transmission line, and the electric length of this open stub is set to an integral multiple of a half-wave length of a resonance wave length corresponding to a resonance frequency of the filter.Type: ApplicationFiled: March 20, 2007Publication date: October 4, 2007Inventors: Fumihiko Aiga, Hiroyuki Kayano, Noritsugu Shiokawa, Tamio Kawaguchi, Tatsunori Hashimoto
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Patent number: 7215225Abstract: A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed resonance elements, and a prescribed resonance element is coupled with another resonance element by a coupling transmission line. It follows that each resonance element is coupled with another resonance element by the direct coupling via the coupling transmission line or by the spatial coupling via the space.Type: GrantFiled: May 20, 2004Date of Patent: May 8, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Fuke, Yoshiaki Terashima, Fumihiko Aiga, Mutsuki Yamazaki, Hiroyuki Kayano, Tatsunori Hashimoto
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Patent number: 7167065Abstract: A filter circuit has a complex block and exciting portions. The complex block has: a first block end resonator; a first resonator that is coupled to the first block end resonator; a second resonator that is coupled to the first resonator; a third resonator that is coupled to the second resonator; a fourth resonator that is coupled to the third resonator; and a second block end resonator that is coupled to the fourth resonator. Couplings between the first block end resonator and the second block end resonator, between the first resonator and the fourth resonator, and between the second resonator and the third resonator are in phase. The complex block and the exciting portions are single-path-coupled.Type: GrantFiled: January 9, 2004Date of Patent: January 23, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Fumihiko Aiga, Tatsunori Hashimoto, Yoshiaki Terashima, Mutsuki Yamazaki, Hiroyuki Fuke, Hiroyuki Kayano
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Publication number: 20050285701Abstract: A filter circuit includes a plurality of resonators connected in parallel and each having loaded Q deviation equal to allowable deviation of a group delay, a divider to divide an input signal to the resonators, a combiner to combine output signals of the resonators, and an opposite phase unit for making signals passing two resonators of the resonators an approximately opposite phase in an output of the combiner, the two resonators having resonance frequencies adjacent to each other, respectively.Type: ApplicationFiled: June 28, 2005Publication date: December 29, 2005Inventors: Hiroyuki Kayano, Tatsunori Hashimoto
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Patent number: 6903632Abstract: A band pass filter configured by a planar structure circuit, includes resonators of distribution constant circuit type, transmission line paths coupling the resonators and excitation lines arranged at input/output sides. The transmission line path is provided with line path portions coupling the resonators or the resonator and the excitation line. The line path portion have a length which is (1+2m)/4-fold (m: natural number) of a wavelength corresponding to a center frequency of the frequency band, and each coupling part between the resonators and the line portion has a length substantially determined as a ΒΌ wavelength.Type: GrantFiled: September 24, 2003Date of Patent: June 7, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Tatsunori Hashimoto, Fumihiko Aiga, Hiroyuki Fuke, Yoshiaki Terashima, Mutsuki Yamazaki, Hiroyuki Kayano
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Patent number: 6897745Abstract: There is disclosed a half-wavelength (?/2) resonator which is constituted of a micro strip line or a strip line and in which line pattern portions are disposed symmetrically with respect to a reference line, connected to each other to form an L shape, and formed in an open loop shape so as to have open ends. For one pair of line pattern portions having the open ends, base portions connected to adjacent line pattern portions are disposed in the vicinity of the reference line, and the open ends are extended in opposite directions so that the ends are disposed apart from the reference line.Type: GrantFiled: June 9, 2003Date of Patent: May 24, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Fumihiko Aiga, Yoshiaki Terashima, Mutsuki Yamazaki, Hiroyuki Fuke, Hiroyuki Kayano, Tatsunori Hashimoto
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Publication number: 20050007210Abstract: A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed resonance elements, and a prescribed resonance element is coupled with another resonance element by a coupling transmission line. It follows that each resonance element is coupled with another resonance element by the direct coupling via the coupling transmission line or by the spatial coupling via the space.Type: ApplicationFiled: May 20, 2004Publication date: January 13, 2005Inventors: Hiroyuki Fuke, Yoshiaki Terashima, Fumihiko Aiga, Mutsuki Yamazaki, Hiroyuki Kayano, Tatsunori Hashimoto