Patents by Inventor Koichiro Yano
Koichiro Yano 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: 11828225Abstract: A control device for adjusting an amount of fuel to be supplied to a gas turbine based on a rotational speed of the gas turbine, such that a frequency of electric power output by a power generator that generates electric power using the gas turbine is within a given range, includes a load value acquisition unit configured to acquire a load value that is a value of a load applied to the power generator after cutoff of a part of the load applied to the power generator when the part of the load applied to the power generator is cut off, an arithmetic unit configured to calculate an adjusted value that is a value of the load different from the load value by carrying out an arithmetic operation on the load value and a bias, and a command unit configured to adjust the amount of fuel by outputting a first signal for causing the power generator to output electric power corresponding to the adjusted value.Type: GrantFiled: September 27, 2022Date of Patent: November 28, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Akihiko Saito, Hidekazu Yamashita, Jun Sasahara, Koichiro Yano, Yosuke Kitauchi, Mizuhiko Tanaka, Masahiro Yoshida
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Publication number: 20230014316Abstract: A control device for adjusting an amount of fuel to be supplied to a gas turbine based on a rotational speed of the gas turbine, such that a frequency of electric power output by a power generator that generates electric power using the gas turbine is within a given range, includes a load value acquisition unit configured to acquire a load value that is a value of a load applied to the power generator after cutoff of a part of the load applied to the power generator when the part of the load applied to the power generator is cut off, an arithmetic unit configured to calculate an adjusted value that is a value of the load different from the load value by carrying out an arithmetic operation on the load value and a bias, and a command unit configured to adjust the amount of fuel by outputting a first signal for causing the power generator to output electric power corresponding to the adjusted value.Type: ApplicationFiled: September 27, 2022Publication date: January 19, 2023Inventors: Akihiko SAITO, Hidekazu YAMASHITA, Jun SASAHARA, Koichiro YANO, Yosuke KITAUCHI, Mizuhiko TANAKA, Masahiro YOSHIDA
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Patent number: 8339310Abstract: A positioning method includes: executing a first positioning mode or a second positioning mode, a first positioning process that is performed using a least-square method based on a positioning signal and a second positioning process that is performed using a Kalman filter based on the positioning signal utilizing a positioning result obtained by the first positioning process as a base value being performed in the first positioning mode, and the second positioning process being further performed in the second positioning mode utilizing a positioning result obtained by the second positioning process as a base value; determining accuracy of a positioning result obtained by the second positioning process performed in the executed positioning mode; and changing the positioning mode to be executed to the first positioning mode or the second positioning mode corresponding to the accuracy.Type: GrantFiled: July 8, 2010Date of Patent: December 25, 2012Assignee: Seiko Epson CorporationInventors: Shunichi Mizuochi, Yoshiyuki Muraguchi, Koichiro Yano
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Patent number: 7965229Abstract: A positioning method includes: capturing a satellite signal from a positioning satellite; predicting a state vector including a position of a positioning device and a velocity of the positioning device based on the satellite signal; predicting a first distance-equivalent value indicating a distance between the positioning satellite and the positioning device; measuring a second distance-equivalent value indicating a distance between the positioning satellite and the positioning device; calculating an observed value indicating a difference between the first distance-equivalent value and the second distance-equivalent value; setting a measurement error for the positioning satellite based on a signal strength of the satellite signal; changing the measurement error based on a capture data indicating a data of capturing of the satellite signal; and correcting the state vector using the observed value, and the changed measurement error.Type: GrantFiled: October 7, 2008Date of Patent: June 21, 2011Assignee: Seiko Epson CorporationInventors: Shunichi Mizuochi, Koichiro Yano
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Publication number: 20100280780Abstract: A positioning method includes: executing a first positioning mode or a second positioning mode, a first positioning process that is performed using a least-square method based on a positioning signal and a second positioning process that is performed using a Kalman filter based on the positioning signal utilizing a positioning result obtained by the first positioning process as a base value being performed in the first positioning mode, and the second positioning process being further performed in the second positioning mode utilizing a positioning result obtained by the second positioning process as a base value; determining accuracy of a positioning result obtained by the second positioning process performed in the executed positioning mode; and changing the positioning mode to be executed to the first positioning mode or the second positioning mode corresponding to the accuracy.Type: ApplicationFiled: July 8, 2010Publication date: November 4, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Shunichi MIZUOCHI, Yoshiyuki MURAGUCHI, Koichiro YANO
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Patent number: 7777673Abstract: A positioning method includes: executing a first positioning mode or a second positioning mode, a first positioning process that is performed using a least-square method based on a positioning signal and a second positioning process that is performed using a Kalman filter based on the positioning signal utilizing a positioning result obtained by the first positioning process as a base value being performed in the first positioning mode, and the second positioning process being further performed in the second positioning mode utilizing a positioning result obtained by the second positioning process as a base value; determining accuracy of a positioning result obtained by the second positioning process performed in the executed positioning mode; and changing the positioning mode to be executed to the first positioning mode or the second positioning mode corresponding to the accuracy.Type: GrantFiled: November 26, 2008Date of Patent: August 17, 2010Assignee: Seiko Epson CorporationInventors: Shunichi Mizuochi, Yoshiyuki Muraguchi, Koichiro Yano
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Patent number: 7741995Abstract: A terminal device receives satellite signals from a plurality of satellite positioning system (SPS) satellites and locates a position. The terminal device periodically calculates a first drift df1 of a local oscillator using a reference frequency Hr, calculates a search range of the satellite signal using the first drift df1, calculates a second drift df2 of the local oscillator using a reception frequency of the satellite signal, calculates a reference frequency error ? which is an error of the reference frequency by calculating a difference between the first drift df1 and the second drift df2, and calculates an error correction value ?av of the reference frequency by subjecting a plurality of the reference frequency errors ? to a statistical process.Type: GrantFiled: August 29, 2007Date of Patent: June 22, 2010Assignee: Seiko Epson CorporationInventors: Hidekazu Maezawa, Koichiro Yano
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Publication number: 20090140924Abstract: A positioning method includes: executing a first positioning mode or a second positioning mode, a first positioning process that is performed using a least-square method based on a positioning signal and a second positioning process that is performed using a Kalman filter based on the positioning signal utilizing a positioning result obtained by the first positioning process as a base value being performed in the first positioning mode, and the second positioning process being further performed in the second positioning mode utilizing a positioning result obtained by the second positioning process as a base value; determining accuracy of a positioning result obtained by the second positioning process performed in the executed positioning mode; and changing the positioning mode to be executed to the first positioning mode or the second positioning mode corresponding to the accuracy.Type: ApplicationFiled: November 26, 2008Publication date: June 4, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Shunichi MIZUOCHI, Yoshiyuki MURAGUCHI, Koichiro YANO
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Publication number: 20090096670Abstract: A positioning method includes: capturing a satellite signal from a positioning satellite; predicting a state vector including a position of a positioning device and a velocity of the positioning device based on the satellite signal; predicting a first distance-equivalent value indicating a distance between the positioning satellite and the positioning device; measuring a second distance-equivalent value indicating a distance between the positioning satellite and the positioning device; calculating an observed value indicating a difference between the first distance-equivalent value and the second distance-equivalent value; setting a measurement error for the positioning satellite based on a signal strength of the satellite signal; changing the measurement error based on a capture data indicating a data of capturing of the satellite signal; and correcting the state vector using the observed value, and the changed measurement error.Type: ApplicationFiled: October 7, 2008Publication date: April 16, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Shunichi MIZUOCHI, Koichiro YANO
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Publication number: 20080068258Abstract: A terminal device receives satellite signals from a plurality of satellite positioning system (SPS) satellites and locates a position. The terminal device periodically calculates a first drift df1 of a local oscillator using a reference frequency Hr, calculates a search range of the satellite signal using the first drift df1, calculates a second drift df2 of the local oscillator using a reception frequency of the satellite signal, calculates a reference frequency error ? which is an error of the reference frequency by calculating a difference between the first drift df1 and the second drift df2, and calculates an error correction value ?av of the reference frequency by subjecting a plurality of the reference frequency errors ? to a statistical process.Type: ApplicationFiled: August 29, 2007Publication date: March 20, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Hidekazu MAEZAWA, Koichiro YANO
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Publication number: 20070203647Abstract: A positioning device includes a position calculation section which calculates a determined position of the positioning device based on a satellite signal S1 and the like, a velocity calculation section which calculates moving velocity of the positioning device, a stationary state determination section which determines whether or not a stationary state condition beta is satisfied in which a time elapsed from the last positioning is within an allowable time range specified in advance, moving velocity v0 during the last positioning is within a first velocity allowable range specified in advance, and current moving velocity v1 is within a second velocity allowable range specified in advance, an average position calculation section which calculates an average position Q1 by averaging a determined position P0 during the last positioning and a current determined position P1, and the like.Type: ApplicationFiled: February 27, 2007Publication date: August 30, 2007Applicant: Seiko Epson CorporationInventors: Shunichi Mizuochi, Tomoyuki Kurata, Kiyotaka Muraki, Koichiro Yano
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Patent number: D783735Type: GrantFiled: April 28, 2015Date of Patent: April 11, 2017Assignee: EPOCH COMPANY, LTD.Inventor: Koichiro Yano