Patents by Inventor Michihiro Nakagawa
Michihiro Nakagawa 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: 9634580Abstract: A difference command generator generates a difference command equivalent to a time integral of three-phase voltage applied to an inductive load in a predetermined cycle in a complex plane. A vector command generator generates vector commands that are respectively time integrals of voltage vectors and compose the difference command. A switching signal generator generates switching signals for controlling three pairs of switches in an inverter on the basis of the vector commands. A phase-current computing unit obtains an estimated value for the three-phase current on the basis of a current flowing DC buses and the vector commands. At least two of the vector commands that are time integrals of different ones of the non-zero voltage vectors have magnitudes greater than or equal to a predetermined value corresponding to a minimum required amount of time to maintain switching patterns in order for the phase-current computing unit to detect the current.Type: GrantFiled: March 4, 2014Date of Patent: April 25, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Michihiro Nakagawa, Nobuki Kitano, Naoto Kobayashi
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Publication number: 20160020708Abstract: A difference command generator generates a difference command equivalent to a time integral of three-phase voltage applied to an inductive load in a predetermined cycle in a complex plane. A vector command generator generates vector commands that are respectively time integrals of voltage vectors and compose the difference command. A switching signal generator generates switching signals for controlling three pairs of switches in an inverter on the basis of the vector commands. A phase-current computing unit obtains an estimated value for the three-phase current on the basis of a current flowing DC buses and the vector commands. At least two of the vector commands that are time integrals of different ones of the non-zero voltage vectors have magnitudes greater than or equal to a predetermined value corresponding to a minimum required amount of time to maintain switching patterns in order for the phase-current computing unit to detect the current.Type: ApplicationFiled: March 4, 2014Publication date: January 21, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Michihiro NAKAGAWA, Nobuki KITANO, Naoto KOBAYASHI
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Patent number: 9018871Abstract: A carrier generating unit applies a carrier that monotonically decreases to a switching control unit during either one of a first period that is a period immediately following a period in which a voltage command value is a value not more than a minimum value of the carrier, the voltage command value taking a first predetermined value larger than the minimum value of the carrier in the first period, and a second period that is a period immediately preceding a period in which the voltage command value is not less than a maximum value of the carrier, the voltage command value taking a second predetermined value smaller than the maximum value in the second period.Type: GrantFiled: October 26, 2011Date of Patent: April 28, 2015Assignee: Daikin Industries, Ltd.Inventors: Takeshi Ashida, Hiroshi Hibino, Naoto Kobayashi, Michihiro Nakagawa, Nobuki Kitano, Masaki Kouno
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Publication number: 20130221884Abstract: A carrier generating unit applies a carrier that monotonically decreases to a switching control unit during either one of a first period that is a period immediately following a period in which a voltage command value is a value not more than a minimum value of the carrier, the voltage command value taking a first predetermined value larger than the minimum value of the carrier in the first period, and a second period that is a period immediately preceding a period in which the voltage command value is not less than a maximum value of the carrier, the voltage command value taking a second predetermined value smaller than the maximum value in the second period.Type: ApplicationFiled: October 26, 2011Publication date: August 29, 2013Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takeshi Ashida, Hiroshi Hibino, Naoto Kobayashi, Michihiro Nakagawa, Nobuki Kitano, Masaki Kouno
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Patent number: 8218191Abstract: The invention provides the user a first insertion page position setting part that allows a user to designate insertion page positions that respectively indicate pages at which first tab sheets are to be inserted, and a second insertion page position setting part that allows the user to designate insertion page positions that respectively indicate pages at which second tab sheets are to be inserted, when a request for initiating the setting concerning the tab sheets is received. Further, the tab positions in the second tab sheets, which correspond to the insertion page positions designated in said second insertion page position setting part, are set up in accordance with the tab positions in the first tab sheets, which correspond to the insertion page positions designated in said first insertion page position setting part.Type: GrantFiled: July 19, 2007Date of Patent: July 10, 2012Assignee: Konica Minolota Business Technologies, Inc.Inventors: Tamotsu Sakuraba, Toshimi Shinchi, Michihiro Nakagawa, Yukihiko Ichikawa
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Patent number: 8152154Abstract: An image forming apparatus has a tab sheet supply unit and a control unit. The tab sheet supply unit supplies tab sheets of an identical type from an identical sheet supply tray as a chapter tab sheet to be inserted at a breakpoint of a first level of classification of a document to be printed, as well as a section tab sheet to be inserted at a breakpoint of a second level that is a finer level of classification than the first level of classification. The control unit causes the tab sheet contained in the sheet supply tray to be discharged as an unnecessary tab sheet, if the tab position of the tab sheet to be supplied next from the sheet supply tray does not match with the tab position of the tab sheet to be inserted next during the printing of the document, until both of the tab positions match.Type: GrantFiled: July 15, 2011Date of Patent: April 10, 2012Assignee: Konica Minolta Business Technologies, Inc.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba, Toshimi Shinchi, Yukihiko Ichikawa
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Publication number: 20110266740Abstract: An image forming apparatus has a tab sheet supply unit and a control unit. The tab sheet supply unit supplies tab sheets of an identical type from an identical sheet supply tray as a chapter tab sheet to be inserted at a breakpoint of a first level of classification of a document to be printed, as well as a section tab sheet to be inserted at a breakpoint of a second level that is a finer level of classification than the first level of classification. The control unit causes the tab sheet contained in the sheet supply tray to be discharged as an unnecessary tab sheet, if the tab position of the tab sheet to be supplied next from the sheet supply tray does not match with the tab position of the tab sheet to be inserted next during the printing of the document, until both of the tab positions match.Type: ApplicationFiled: July 15, 2011Publication date: November 3, 2011Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba, Toshimi Shinchi, Yukihiko Ichikawa
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Patent number: 8002258Abstract: An image forming apparatus has a tab sheet supply unit and a control unit. The tab sheet supply unit supplies tab sheets of an identical type from an identical sheet supply tray as a chapter tab sheet to be inserted at a breakpoint of a first level of classification of a document to be printed, as well as a section tab sheet to be inserted at a breakpoint of a second level that is a finer level of classification than the first level of classification. The control unit causes the tab sheet contained in the sheet supply tray to be discharged as an unnecessary tab sheet, if the tab position of the tab sheet to be supplied next from the sheet supply tray does not match with the tab position of the tab sheet to be inserted next during the printing of the document, until both of the tab positions match.Type: GrantFiled: October 2, 2009Date of Patent: August 23, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba, Toshimi Shinchi, Yukihiko Ichikawa
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Patent number: 7706711Abstract: The invention provides a user with a first tab printing setting part for setting up an item concerning printing on a first tab sheet and a second tab printing setting part for setting up an item concerning printing on a second tab sheet; and setting up, when the value of an item is set up in one of the first tab printing setting part and the second tab printing setting part, a value of the corresponding item in the other one of the first and second tab printing setting parts in dependence upon the value of the item in the aforementioned one of the parts.Type: GrantFiled: July 18, 2007Date of Patent: April 27, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Toshimi Shinchi, Tamotsu Sakuraba, Michihiro Nakagawa
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Publication number: 20100019436Abstract: An image forming apparatus has a tab sheet supply unit and a control unit. The tab sheet supply unit supplies tab sheets of an identical type from an identical sheet supply tray as a chapter tab sheet to be inserted at a breakpoint of a first level of classification of a document to be printed, as well as a section tab sheet to be inserted at a breakpoint of a second level that is a finer level of classification than the first level of classification. The control unit causes the tab sheet contained in the sheet supply tray to be discharged as an unnecessary tab sheet, if the tab position of the tab sheet to be supplied next from the sheet supply tray does not match with the tab position of the tab sheet to be inserted next during the printing of the document, until both of the tab positions match.Type: ApplicationFiled: October 2, 2009Publication date: January 28, 2010Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba, Toshimi Shinchi, Yukihiko Ichikawa
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Publication number: 20090316190Abstract: If a user's instruction concerning at least one of print interruption and print cancellation is received by one of a plurality of printers while a print job is being executed split among the plurality of printers, a command for causing other printer that is executing printing processes based on the print job corresponding to the printing to execute a processes corresponding to the instruction is issued from the one of the plurality of printers.Type: ApplicationFiled: March 18, 2009Publication date: December 24, 2009Applicant: Konica Minolta Business Technologies, Inc.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba
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Publication number: 20080260412Abstract: The invention provides a user with a first tab printing setting part for setting up an item concerning printing on a first tab sheet and a second tab printing setting part for setting up an item concerning printing on a second tab sheet; and setting up, when the value of an item is set up in one of the first tab printing setting part and the second tab printing setting part, a value of the corresponding item in the other one of the first and second tab printing setting parts in dependence upon the value of the item in the aforementioned one of the parts.Type: ApplicationFiled: July 18, 2007Publication date: October 23, 2008Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Toshimi Shinchi, Tamotsu Sakuraba, Michihiro Nakagawa
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Patent number: 7424236Abstract: A controlling method for controlling an image forming apparatus has a step of displaying a printing paper illustration representing printing paper on an operating screen and a step of displaying at least one icon related to a process function of the image forming apparatus. The controlling method further has a step of selecting a process function that corresponds to the specified icon and a step of determining the location to which the selected process function is applied upon receiving an instruction for a position on the printing paper illustration.Type: GrantFiled: July 7, 2005Date of Patent: September 9, 2008Assignee: Konica Minolta Business Technologies, Inc.Inventors: Akira Inoue, Takei Ishibashi, Michihiro Nakagawa, Hideki Endou
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Publication number: 20080197556Abstract: An image forming apparatus has a tab sheet supply unit and a control unit. The tab sheet supply unit supplies tab sheets of an identical type from an identical sheet supply tray as a chapter tab sheet to be inserted at a breakpoint of a first level of classification of a document to be printed, as well as a section tab sheet to be inserted at a breakpoint of a second level that is a finer level of classification than the first level of classification. The control unit causes the tab sheet contained in the sheet supply tray to be discharged as an unnecessary tab sheet, if the tab position of the tab sheet to be supplied next from the sheet supply tray does not match with the tab position of the tab sheet to be inserted next during the printing of the document, until both of the tab positions match.Type: ApplicationFiled: June 29, 2007Publication date: August 21, 2008Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba, Toshimi Shinchi, Yukihiko Ichikawa
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Publication number: 20080199200Abstract: There is provided for a user a setting screen having a tab sheet insertion setting part for conducting insertion setting concerning insertion of tab sheets of a plurality of types, and a tab sheet discharge setting part for conducting discharge setting for discharging tab sheets that became no longer necessary classifying the tab sheets depending on the types. The insertion setting and the discharge setting specified by the user are received via this setting screen.Type: ApplicationFiled: July 6, 2007Publication date: August 21, 2008Applicant: Konica Minolta Business Technologies, Inc.Inventors: Michihiro Nakagawa, Tamotsu Sakuraba, Toshimi Shinchi
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Publication number: 20080175636Abstract: The invention provides the user a first insertion page position setting part that allows a user to designate insertion page positions that respectively indicate pages at which first tab sheets are to be inserted, and a second insertion page position setting part that allows the user to designate insertion page positions that respectively indicate pages at which second tab sheets are to be inserted, when a request for initiating the setting concerning the tab sheets is received. Further, the tab positions in the second tab sheets, which correspond to the insertion page positions designated in said second insertion page position setting part, are set up in accordance with the tab positions in the first tab sheets, which correspond to the insertion page positions designated in said first insertion page position setting part.Type: ApplicationFiled: July 19, 2007Publication date: July 24, 2008Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Tamotsu Sakuraba, Toshimi Shinchi, Michihiro Nakagawa, Yukihiko Ichikawa
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Publication number: 20070297013Abstract: An image reading apparatus, including: a scanner unit to read an original image to generate image data; an input unit to accept a direction to perform or not to perform predetermined image processing which affects image density to the image data; and a control unit to perform the predetermined image processing to the image data based on the direction on the input unit, wherein the control unit prohibits performing the predetermined image processing to the image data and outputting the image data when the control unit recognizes a presence of a security watermark in the original image based on the image data.Type: ApplicationFiled: January 9, 2007Publication date: December 27, 2007Inventor: Michihiro Nakagawa
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Publication number: 20060088331Abstract: A controlling method for controlling an image forming apparatus has a step of displaying a prinnting paper illustration representing printing paper on an operating screen and a step of displaying at least one icon related to a process function of the image forming apparatus. The controlling method further has a step of selecting a process function that corresponds to the specified icon and a step of determining the location to which the selected process function is applied upon receiving an instruction for a position on the printing paper illustration.Type: ApplicationFiled: July 7, 2005Publication date: April 27, 2006Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Akira Inoue, Takei Ishibashi, Michihiro Nakagawa, Hideki Endou
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Patent number: 5353125Abstract: A facsimile apparatus in a first station with an error correction mode retransmits signal again in response to a request from a section station. The facsimile apparatus includes a CPU to control a transmission speed of the signal transmission circuit so as to transmit operation control signals such as page information signals relating to a document and post message command signals indicating an operation that is to follow a present operation, at a first transmitting speed that corresponds to a transmission speed used to transmit image signals.Type: GrantFiled: February 2, 1993Date of Patent: October 4, 1994Assignee: Konica CorporationInventors: Michihiro Nakagawa, Kazuo Izumi, Hirohiko Yamazaki, Kunio Shijo