Patents by Inventor Ryuji Iwamoto
Ryuji Iwamoto 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).
-
Patent number: 11460332Abstract: Gas meter includes shutoff valve, return unit, flow rate measurer, display, communication unit that communicates with an outside, controller, area information setting unit, and area information comparator. The gas meter compares, by area information comparator, a preset area information held in area information setting unit with a specified value of area information added to a remote shutoff instruction received by communication unit, and when the preset area information and the specified value of the added area information match, shutoff valve is closed.Type: GrantFiled: August 23, 2019Date of Patent: October 4, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kenji Nagatomo, Yasuo Koba, Ryuji Iwamoto, Mitsunobu Enomoto
-
Publication number: 20210270655Abstract: Gas meter includes shutoff valve, return unit, flow rate measurer, display, communication unit that communicates with an outside, controller, area information setting unit, and area information comparator. The gas meter compares, by area information comparator, a preset area information held in area information setting unit with a specified value of area information added to a remote shutoff instruction received by communication unit, and when the preset area information and the specified value of the added area information match, shutoff valve is closed.Type: ApplicationFiled: August 23, 2019Publication date: September 2, 2021Inventors: KENJI NAGATOMO, YASUO KOBA, RYUJI IWAMOTO, MITSUNOBU ENOMOTO
-
Patent number: 10591330Abstract: Flow rate measurement is performed with a propagation time by using a pair of ultrasonic wave oscillators which is provided in flow path through which a fluid to be measured flows, and is disposed so as to transmit and receive an ultrasonic wave signal by causing the ultrasonic wave signal to be reflected on an inner wall of flow path at least once. In addition, adjustment of an amplification rate is periodically performed by amplifier, which amplifies the ultrasonic wave signal received by each of the ultrasonic wave oscillators to a predetermined amplitude, and a difference between a previous amplification rate and a current amplification rate is a predetermined value or more, and the instantaneous flow rate calculated by flow rate calculation unit is a predetermined flow rate or less, the reference voltage is adjusted by reference voltage setting unit. With the configuration, the propagation time can be stably measured and deterioration of the maximum amplitude is prevented.Type: GrantFiled: December 15, 2016Date of Patent: March 17, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuki Shiota, Kenji Yasuda, Ryuji Iwamoto, Yuji Fujii, Yasuo Koba
-
Patent number: 10323968Abstract: When an appliance identification art is provided, the computing speed and the identification accuracy are improved while the required memory amount, etc., is decreased. In a gas meter 100, an ultrasonic flowmeter 104 measures the flow rate of gas flowing into a flow path 102 at a given time interval, and a computation section 108 computes a difference value of the predetermined time period between the measured flow rates. A difference value conversion section 112 converts the computed difference value into a code with reference to a flow rate class table by which classes of difference values corresponding to a size of the difference value and codes representing the classes are associated with each other. Further, a flow rate change history generation section 114 generates a flow rate change history approximately representing flow rate change of gas based on a set of the codes of the predetermined time period.Type: GrantFiled: May 26, 2008Date of Patent: June 18, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Ryuji Iwamoto
-
Publication number: 20190078918Abstract: Flow rate measurement is performed with a propagation time by using a pair of ultrasonic wave oscillators which is provided in flow path through which a fluid to be measured flows, and is disposed so as to transmit and receive an ultrasonic wave signal by causing the ultrasonic wave signal to be reflected on an inner wall of flow path at least once. In addition, adjustment of an amplification rate is periodically performed by amplifier, which amplifies the ultrasonic wave signal received by each of the ultrasonic wave oscillators to a predetermined amplitude, and a difference between a previous amplification rate and a current amplification rate is a predetermined value or more, and the instantaneous flow rate calculated by flow rate calculation unit is a predetermined flow rate or less, the reference voltage is adjusted by reference voltage setting unit. With the configuration, the propagation time can be stably measured and deterioration of the maximum amplitude is prevented.Type: ApplicationFiled: December 15, 2016Publication date: March 14, 2019Inventors: KAZUKI SHIOTA, KENJI YASUDA, RYUJI IWAMOTO, YUJI FUJII, YASUO KOBA
-
Patent number: 9200939Abstract: On occasion of provision of a technique for identifying an appliance, an attempt can be made to enhance computing speed and the accuracy of identification of an appliance while the amount of memory required for an apparatus is reduced. In a gas meter 100, an ultrasonic flowmeter 104 measures the quantity of a gas flowing through a flow path 102 at a given time interval, and a computation section 108 computes a difference value of the measured flow at each given time. A difference value conversion section 112 converts a computed difference value into a code with reference to a flow rate class table 110a by which a plurality of difference value classes corresponding to a size of the difference value and codes representing the respective classes are associated with each other.Type: GrantFiled: June 12, 2008Date of Patent: December 1, 2015Assignee: Panasonic CorporationInventor: Ryuji Iwamoto
-
Patent number: 9046222Abstract: Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow path 102 is measured by a flow volume measurement unit 106, and pressure is measured by a pressure measurement unit 108. Measured flow data and measured pressure data are input to an analysis unit 112, to thus analyze following of a pressure change by a flow volume change. An amount of flow volume change responsive to an amount of pressure change of a predetermined level or more is classified into a plurality of ranges by means of a predetermined threshold value, and a following flow value change is determined on the basis of determination conditions of the respective ranges of amounts of flow volume changes.Type: GrantFiled: March 2, 2009Date of Patent: June 2, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hajime Miyata, Kenichi Kamon, Youichi Itou, Daisuke Bessyo, Ryuji Iwamoto
-
Patent number: 9014993Abstract: A flow rate measuring device simplifies calculation, reduces memory required for calculation, absorbs variations due to manual operation and, depending on the state of ignition, improves the accuracy of appliance identification by extracting features of appliances. The flow rate measuring device includes: a difference value conversion unit that converts into codes difference values of the flow rate measured at constant time intervals by an ultrasonic flowmeter; an appliance feature extraction unit creates an appliance feature code string indicating a feature of each appliance by, for example, making comparison and judgment using a third last code, a second last code, a last code and a current code of the codes obtained at constant time intervals, and by performing code deletion; and an identification unit performs appliance identification by comparing the appliance feature code string with an appliance inherent feature code string indicating the feature code string inherent in each appliance.Type: GrantFiled: March 1, 2010Date of Patent: April 21, 2015Assignee: Panasonic CorporationInventors: Mitsuo Yokohata, Ryuji Iwamoto, Takuhisa Ootani, Kouichi Ueki, Kazutaka Asano, Hajime Miyata, Youichi Itou
-
Patent number: 8606729Abstract: A newly-purchased gas appliance is detected and reported to a gas administrator. There are provided a flow rate detection portion, a flow rate calculation portion, a code extraction portion, an initial code learning portion, a code maintaining portion, a code judging portion, an additional code learning portion, and an external communication portion. The code extraction portion extracts a code pattern E. The initial code learning portion gathers similar code patterns E as a gas appliance code pattern F. The code judging portion judges whether or not the code pattern E matches any of gas appliance code patterns F held by the code maintaining portion within a predetermined range. The code patterns E that have failed to match are subjected to additional identification of a gas appliance in the additional code learning portion.Type: GrantFiled: May 19, 2010Date of Patent: December 10, 2013Assignee: Panasonic CorporationInventors: Takuhisa Ootani, Ryuji Iwamoto, Mitsuo Yokohata, Kouichi Ueki, Kazutaka Asano, Hajime Miyata, Youichi Itou
-
Patent number: 8548754Abstract: Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow path 102 is measured by a flow volume measurement unit 106, and pressure is measured by a pressure measurement unit 108. Measured flow data and measured pressure data are input to an analysis unit 112, to thus analyze following of a pressure change by a flow volume change. A determination showing that a following flow volume change is present, that a following flow volume change is not present, or that a following flow volume change is uncertain is made according to a magnitude correlation between an amount of pressure change of a predetermined level or more and an amount of flow volume change.Type: GrantFiled: March 2, 2009Date of Patent: October 1, 2013Assignee: Panasonic CorporationInventors: Ryuji Iwamoto, Hajime Miyata, Youichi Itou, Daisuke Bessyo, Kenichi Kamon
-
Publication number: 20120078828Abstract: A newly-purchased gas appliance is detected and reported to a gas administrator. There are provided a flow rate detection portion, a flow rate calculation portion, a code extraction portion, an initial code learning portion, a code maintaining portion, a code judging portion, an additional code learning portion, and an external communication portion. The code extraction portion extracts a code pattern E. The initial code learning portion gathers similar code patterns E as a gas appliance code pattern F. The code judging portion judges whether or not the code pattern E matches any of gas appliance code patterns F held by the code maintaining portion within a predetermined range. The code patterns E that have failed to match are subjected to additional identification of a gas appliance in the additional code learning portion.Type: ApplicationFiled: May 19, 2010Publication date: March 29, 2012Applicant: PANASONIC CORPORATIONInventors: Takuhisa Ootani, Ryuji Iwamoto, Mitsuo Yokohata, Kouichi Ueki, Kazutaka Asano, Hajime Miyata, Youichi Itou
-
Publication number: 20120016527Abstract: An object of the present invention is to make a function of limiting the use time appropriate by appropriately registering flow rates of appliances.Type: ApplicationFiled: January 28, 2010Publication date: January 19, 2012Applicant: PANASONIC CORPORATIONInventors: Kouichi Ueki, Takuhisa Ootani, Ryuji Iwamoto, Kazutaka Asano
-
Publication number: 20110320141Abstract: The present invention provides a flow rate measuring device capable of simplifying calculation, reducing the amount of a memory required for the calculation, absorbing variations due to manual operation and depending on the state of ignition, and improving the accuracy of appliance identification by using a configuration in which the features of appliances are extracted. The flow rate measuring device is formed of a difference value conversion unit 112 for converting the difference values of the flow rate measured at constant time intervals by an ultrasonic flowmeter 104; an appliance feature extraction unit 214 for creating an appliance feature code string indicating the feature of each appliance by making comparison and judgment using the third last code, the second last code, the last code and the current code of the codes obtained at constant time intervals and by performing code deletion, etc.Type: ApplicationFiled: March 1, 2010Publication date: December 29, 2011Applicant: PANASONIC CORPORATIONInventors: Mitsuo Yokohata, Ryuji Iwamoto, Takuhisa Ootani, Kouichi Ueki, Kazutaka Asano, Hajime Miyata, Youichi Itou
-
Publication number: 20110178732Abstract: On occasion of provision of a technique for identifying an appliance, an attempt can be made to enhance computing speed and the accuracy of identification of an appliance while the amount of memory required for an apparatus is reduced. In a gas meter 100, an ultrasonic flowmeter 104 measures the quantity of a gas flowing through a flow path 102 at a given time interval, and a computation section 108 computes a difference value of the measured flow at each given time. A difference value conversion section 112 converts a computed difference value into a code with reference to a flow rate class table 110a by which a plurality of difference value classes corresponding to a size of the difference value and codes representing the respective classes are associated with each other.Type: ApplicationFiled: June 12, 2008Publication date: July 21, 2011Applicant: Panasonic CorporationInventor: Ryuji Iwamoto
-
Publication number: 20110155268Abstract: An object of the present invention is to promote the optimization of a usage time limitation function of performing a suitable registration of an appliance flow rate.Type: ApplicationFiled: October 8, 2009Publication date: June 30, 2011Applicant: Panasonic CorporationInventors: Kouichi Ueki, Takuhisa Ootani, Ryuji Iwamoto, Kazutaka Asano
-
Publication number: 20110010111Abstract: Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow path 102 is measured by a flow volume measurement unit 106, and pressure is measured by a pressure measurement unit 108. Measured flow data and measured pressure data are input to an analysis unit 112, to thus analyze following of a pressure change by a flow volume change. An amount of flow volume change responsive to an amount of pressure change of a predetermined level or more is classified into a plurality of ranges by means of a predetermined threshold value, and a following flow value change is determined on the basis of determination conditions of the respective ranges of amounts of flow volume changes.Type: ApplicationFiled: March 2, 2009Publication date: January 13, 2011Inventors: Hajime Miyata, Kenichi Kamon, Youichi Itou, Daisuke Bessyo, Ryuji Iwamoto
-
Publication number: 20110004423Abstract: Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow path 102 is measured by a flow volume measurement unit 106, and pressure is measured by a pressure measurement unit 108. Measured flow data and measured pressure data are input to an analysis unit 112, to thus analyze following of a pressure change by a flow volume change. A determination showing that a following flow volume change is present, that a following flow volume change is not present, or that a following flow volume change is uncertain is made according to a magnitude correlation between an amount of pressure change of a predetermined level or more and an amount of flow volume change.Type: ApplicationFiled: March 2, 2009Publication date: January 6, 2011Applicant: Panasonic CorporationInventors: Ryuji Iwamoto, Hajime Miyata, Youichi Itou, Daisuke Bessyo, Kenichi Kamon
-
Publication number: 20100292940Abstract: When an appliance identification art is provided, the computing speed and the identification accuracy are improved while the required memory amount, etc., is decreased. In a gas meter 100, an ultrasonic flowmeter 104 measures the flow rate of gas flowing into a flow path 102 at a given time interval, and a computation section 108 computes a difference value of the predetermined time period between the measured flow rates. A difference value conversion section 112 converts the computed difference value into a code with reference to a flow rate class table by which classes of difference values corresponding to a size of the difference value and codes representing the classes are associated with each other. Further, a flow rate change history generation section 114 generates a flow rate change history approximately representing flow rate change of gas based on a set of the codes of the predetermined time period.Type: ApplicationFiled: May 26, 2008Publication date: November 18, 2010Applicant: Panasonic CorporationInventor: Ryuji Iwamoto
-
Patent number: 7773261Abstract: A method of setting color processing parameters for a digital imaging apparatus includes connecting a computer via a communication path to a digital imaging apparatus that produces color image data through color processing performed by a color processing unit on image data taken by an imaging device, setting, in the computer, parameters for use in the color processing, transferring the parameters from the computer to the digital imaging apparatus via the communication path, causing the color processing unit to perform color processing based on the parameters under control of an emulator that operates in the digital imaging apparatus, and storing, in memory, color image data generated by the color processing based on the parameters.Type: GrantFiled: July 25, 2007Date of Patent: August 10, 2010Assignee: Fujitsu Semiconductor LimitedInventors: Masami Ikeda, Soichi Hagiwara, Ryuji Iwamoto
-
Publication number: 20080043267Abstract: A method of setting color processing parameters for a digital imaging apparatus includes connecting a computer via a communication path to a digital imaging apparatus that produces color image data through color processing performed by a color processing unit on image data taken by an imaging device, setting, in the computer, parameters for use in the color processing, transferring the parameters from the computer to the digital imaging apparatus via the communication path, causing the color processing unit to perform color processing based on the parameters under control of an emulator that operates in the digital imaging apparatus, and storing, in memory, color image data generated by the color processing based on the parameters.Type: ApplicationFiled: July 25, 2007Publication date: February 21, 2008Inventors: Masami Ikeda, Soichi Hagiwara, Ryuji Iwamoto