Patents by Inventor Nobuaki Matsuo
Nobuaki Matsuo 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: 9985681Abstract: A module comprising: a first transmit filter that passes a transmission signal of a first band; a first receive filter that passes a reception signal of the first band; a second transmit filter that passes a transmission signal of a second band; a second receive filter that passes a reception signal of the second band; a third transmit filter that passes a transmission signal of a third band; and a third receive filter that passes a reception signal of the third band, wherein a transmit band of the first band overlaps with at least a part of a receive band of the second band, a receive band of the third band does not overlap with the transmit band of the first band or a transmit band of the second band, and the third receive filter is located between the first receive filter and the second receive filter.Type: GrantFiled: May 31, 2017Date of Patent: May 29, 2018Assignee: TAIYO YUDEN CO., LTD.Inventors: Tetsuo Saji, Yuki Endo, Nobuaki Matsuo
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Publication number: 20170272115Abstract: A module comprising: a first transmit filter that passes a transmission signal of a first band; a first receive filter that passes a reception signal of the first band; a second transmit filter that passes a transmission signal of a second band; a second receive filter that passes a reception signal of the second band; a third transmit filter that passes a transmission signal of a third band; and a third receive filter that passes a reception signal of the third band, wherein a transmit band of the first band overlaps with at least a part of a receive band of the second band, a receive band of the third band does not overlap with the transmit band of the first band or a transmit band of the second band, and the third receive filter is located between the first receive filter and the second receive filter.Type: ApplicationFiled: May 31, 2017Publication date: September 21, 2017Applicant: TAIYO YUDEN CO., LTD.Inventors: Tetsuo SAJI, Yuki ENDO, Nobuaki MATSUO
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Patent number: 9705557Abstract: A front end circuit includes: a first antenna terminal from/to which transmission/reception signals of a low band (LB) and a high band (HB); a second antenna terminal from/to which a transmission/reception signal of a middle band (MB) is output/input; an LB terminal to/from which the transmission/reception signal of the LB is input/output, an MB terminal to/from which the transmission/reception signal of the MB is input/output; an HB terminal to/from which the transmission/reception signal of the HB is input/output; and a separating circuit that passes the transmission and reception signals of the LB and suppresses the transmission and reception signals of the MB and the HB between the first antenna terminal and the LB terminal, and that passes the transmission and reception signals of the HB and suppresses the transmission and reception signals of the LB and the MB between the first antenna terminal and the HB terminal.Type: GrantFiled: January 13, 2016Date of Patent: July 11, 2017Assignee: TAIYO YUDEN CO., LTD.Inventors: Tetsuo Saji, Yuki Endo, Nobuaki Matsuo
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Publication number: 20160315653Abstract: A front end circuit includes: a first antenna terminal from/to which transmission/reception signals of a low band (LB) and a high band (HB); a second antenna terminal from/to which a transmission/reception signal of a middle band (MB) is output/input; an LB terminal to/from which the transmission/reception signal of the LB is input/output, an MB terminal to/from which the transmission/reception signal of the MB is input/output; an HB terminal to/from which the transmission/reception signal of the HB is input/output; and a separating circuit that passes the transmission and reception signals of the LB and suppresses the transmission and reception signals of the MB and the HB between the first antenna terminal and the LB terminal, and that passes the transmission and reception signals of the HB and suppresses the transmission and reception signals of the LB and the MB between the first antenna terminal and the HB terminal.Type: ApplicationFiled: January 13, 2016Publication date: October 27, 2016Applicant: TAIYO YUDEN CO., LTD.Inventors: Tetsuo Saji, Yuki Endo, Nobuaki Matsuo
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Patent number: 9287847Abstract: A module includes: a diplexer that includes a first terminal, a second terminal, and a common terminal coupled to an antenna; a first switch that is coupled to the first terminal, includes first ports, and selects, from the first ports, and connects one port to the diplexer; a first duplexer that is coupled to at least one of the first ports; a second duplexer that is coupled to the second terminal and has a passband different from a passband of the first duplexer; and a first impedance portion that is coupled to another port of the first ports.Type: GrantFiled: January 8, 2014Date of Patent: March 15, 2016Assignee: TAIYO YUDEN CO., LTD.Inventors: Ryuji Murata, Nobuaki Matsuo, Yuki Matsubayashi
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Patent number: 9252832Abstract: A high-frequency circuit includes: first duplexers, each including a first transmit filter having a first transmit band, a first receive filter having a first receive band, and a first common terminal to which first ends of the first transmit filter and the first receive filter are commonly connected; a first switch that selects and connects one of the first common terminals to a first antenna; an LPF or BPF that is connected between the first antenna and the first switch, and passes a signal in the first transmit band and the first receive band; and a second duplexer including: a second transmit filter having a second transmit band, a second receive filter having a second receive band, and a second common terminal that is connected to a second antenna and to which first ends of the second transmit filter and the second receive filter are commonly connected.Type: GrantFiled: July 25, 2013Date of Patent: February 2, 2016Assignee: TAIYO YUDEN CO., LTD.Inventors: Nobuaki Matsuo, Ryuji Murata, Yuki Matsubayashi
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Publication number: 20140203887Abstract: A module includes: a diplexer that includes a first terminal, a second terminal, and a common terminal coupled to an antenna; a first switch that is coupled to the first terminal, includes first ports, and selects, from the first ports, and connects one port to the diplexer; a first duplexer that is coupled to at least one of the first ports; a second duplexer that is coupled to the second terminal and has a passband different from a passband of the first duplexer; and a first impedance portion that is coupled to another port of the first ports.Type: ApplicationFiled: January 8, 2014Publication date: July 24, 2014Applicant: TAIYO YUDEN CO., LTD.Inventors: Ryuji MURATA, Nobuaki MATSUO, Yuki MATSUBAYASHI
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Publication number: 20140044022Abstract: A high-frequency circuit includes: first duplexers, each including a first transmit filter having a first transmit band, a first receive filter having a first receive band, and a first common terminal to which first ends of the first transmit filter and the first receive filter are commonly connected; a first switch that selects and connects one of the first common terminals to a first antenna; an LPF or BPF that is connected between the first antenna and the first switch, and passes a signal in the first transmit band and the first receive band; and a second duplexer including: a second transmit filter having a second transmit band, a second receive filter having a second receive band, and a second common terminal that is connected to a second antenna and to which first ends of the second transmit filter and the second receive filter are commonly connected.Type: ApplicationFiled: July 25, 2013Publication date: February 13, 2014Applicant: TAIYO YUDEN CO., LTD.Inventors: Nobuaki MATSUO, Ryuji MURATA, Yuki MATSUBAYASHI
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Patent number: 7330083Abstract: An oscillator includes a resonance circuit, and a feedback circuit coupled to the resonance circuit. The resonance circuit includes a main resonance element circuit, and a voltage dividing circuit that divides an output voltage of the main resonance element circuit and applies a divided voltage to the feedback circuit.Type: GrantFiled: December 6, 2005Date of Patent: February 12, 2008Assignee: Fujitsu Media Devices LimitedInventors: Nobuaki Matsuo, Alejandro Puel
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Patent number: 7053721Abstract: An oscillator includes a resonant circuit generating a resonant signal, a drive circuit that feeds back the resonant signal to the resonant circuit, and an output terminal connected to a given node of the resonant circuit, an oscillation signal of the oscillator being output via the output terminal.Type: GrantFiled: November 21, 2003Date of Patent: May 30, 2006Assignee: Fujitsu Media Devices LimitedInventors: Nobuaki Matsuo, Alejandro Puel
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Publication number: 20060071726Abstract: An oscillator includes a resonance circuit, and a feedback circuit coupled to the resonance circuit. The resonance circuit includes a main resonance element circuit, and a voltage dividing circuit that divides an output voltage of the main resonance element circuit and applies a divided voltage to the feedback circuit.Type: ApplicationFiled: December 6, 2005Publication date: April 6, 2006Inventors: Nobuaki Matsuo, Alejandro Puel
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Patent number: 7002424Abstract: An oscillator includes a resonance circuit, and a feedback circuit coupled to the resonance circuit. The resonance circuit includes a main resonance element circuit, and a voltage dividing circuit that divides an output voltage of the main resonance element circuit and applies a divided voltage to the feedback circuit.Type: GrantFiled: May 12, 2003Date of Patent: February 21, 2006Assignee: Fujitsu Media Devices LimitedInventors: Nobuaki Matsuo, Alejandro Puel
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Patent number: 6960964Abstract: An oscillator includes a transistor having a collector receiving a power supply voltage, a first capacitor connected between a base and an emitter of the transistor, a second capacitor connected between the first capacitor and ground, a resistor connected between the collector and base of the transistor, a first inductor connected between the base of the transistor and ground, and a second inductor connected to the emitter of the transistor and the first inductor.Type: GrantFiled: November 21, 2003Date of Patent: November 1, 2005Assignee: Fujitsu Media Devices LimitedInventors: Nobuaki Matsuo, Alejandro Puel
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Publication number: 20050110588Abstract: An oscillator includes a transistor having a collector receiving a power supply voltage, a first capacitor connected between a base and an emitter of the transistor, a second capacitor connected between the first capacitor and ground, a resistor connected between the collector and base of the transistor, a first inductor coupled between the base of the transistor and ground, and a second inductor connected between the emitter of the transistor and one of the first inductor and ground.Type: ApplicationFiled: May 10, 2004Publication date: May 26, 2005Inventors: Nobuaki Matsuo, Alejandro Puel
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Publication number: 20050110584Abstract: An oscillator includes a resonant circuit generating a resonant signal, a drive circuit that feeds back the resonant signal to the resonant circuit, and an output terminal connected to a given node of the resonant circuit, an oscillation signal of the oscillator being output via the output terminal.Type: ApplicationFiled: November 21, 2003Publication date: May 26, 2005Inventors: Nobuaki Matsuo, Alejandro Puel
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Publication number: 20050110582Abstract: An oscillator includes a transistor having a collector receiving a power supply voltage, a first capacitor connected between a base and an emitter of the transistor, a second capacitor connected between the first capacitor and ground, a resistor connected between the collector and base of the transistor, a first inductor connected between the base of the transistor and ground, and a second inductor connected to the emitter of the transistor and the first inductor.Type: ApplicationFiled: November 21, 2003Publication date: May 26, 2005Inventors: Nobuaki Matsuo, Alejandro Puel
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Publication number: 20030210100Abstract: An oscillator includes a resonance circuit, and a feedback circuit coupled to the resonance circuit. The resonance circuit includes a main resonance element circuit, and a voltage dividing circuit that divides an output voltage of the main resonance element circuit and applies a divided voltage to the feedback circuit.Type: ApplicationFiled: May 12, 2003Publication date: November 13, 2003Applicant: FUJITSU MEDIA DEVICES LIMITEDInventors: Nobuaki Matsuo, Alejandro Puel