Patents by Inventor Yasuhiro Numata
Yasuhiro Numata 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: 11294606Abstract: A printer system connects a plurality of printers and a terminal via a network. First, the system inputs data for a new print from the terminal. Next, based on the inputted data, the system uses a learned model that has learned to select one printer among the plurality of printers based on data that was used in previous printing by the plurality of printers, to infer a printer suited to the new print from the plurality of printers. As a result of the inference, the system conveys the obtained printer to the terminal.Type: GrantFiled: November 9, 2020Date of Patent: April 5, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yasuhiro Numata, Hirofumi Okuhara
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Publication number: 20210149605Abstract: A printer system connecting a plurality of printers and a terminal via a network according to an embodiment of the present invention, performs the following processing. Fist, the system inputs data for a new print from the terminal. Next, based on the inputted data, the system uses a learned model that has learned to select one printer among the plurality of printers based on data that was used in previous printing by the plurality of printers, to infer a printer suited to the new print from the plurality of printers. As a result of the inference, the system conveys the obtained printer to the terminal.Type: ApplicationFiled: November 9, 2020Publication date: May 20, 2021Inventors: Yasuhiro Numata, Hirofumi Okuhara
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Patent number: 7500739Abstract: Replacement of a recording head on a recording apparatus is detected on the basis of a serial number allocated to each recording head. The recording head also carries head characteristic information such as color information, shading information and so forth. When the recording head is replaced with a new one, the head characteristic information of the newly mounted recording head is automatically stored, so that head driving conditions are automatically determined to optimize the recording conditions without requiring any manual adjustment. Recovery operation is automatically executed when replacement of the recording head is detected, so that required recording conditions are recovered without manual instructions.Type: GrantFiled: November 1, 2004Date of Patent: March 10, 2009Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Souhei Tanaka, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Miyuki Fujita
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Publication number: 20050083365Abstract: Replacement of a recording head on a recording apparatus is detected on the basis of a serial number allocated to each recording head. The recording head also carries head characteristic information such as color information, shading information and so forth. When the recording head is replaced with a new one, the head characteristic information of the newly mounted recording head is automatically stored, so that head driving conditions are automatically determined to optimize the recording conditions without requiring any manual adjustment. Recovery operation is automatically executed when replacement of the recording head is detected, so that required recording conditions are recovered without manual instructions.Type: ApplicationFiled: November 1, 2004Publication date: April 21, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Souhei Tanaka, Miyuki Fujita
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Patent number: 6860579Abstract: Replacement of a recording head on a recording apparatus is detected on the basis of a serial number allocated to each recording head. The recording head also carries head characteristic information such as color information, shading information and so forth. When the recording head is replaced with a new one, the head characteristic information of the newly mounted recording head is automatically stored, so that head driving conditions are automatically determined to optimize the recording conditions without requiring any manual adjustment. Recovery operation is automatically executed when replacement of the recording head is detected, so that required recording conditions are recovered without manual instructions.Type: GrantFiled: February 24, 2003Date of Patent: March 1, 2005Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Souhei Tanaka, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Miyuki Fujita
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Patent number: 6644769Abstract: A recording apparatus using full-line type ink jet recording heads needs a large amount of electrical power for ink ejection due to a large number of nozzles of the recording heads. Therefore, a power supply capacity of the recording apparatus needs to be increased, resulting in increase in an overall apparatus cost. When simultaneously recording on plural recording media using a recording apparatus having recording heads with different electrical power consumptions arranged in a transfer direction of the recording media, recording is performed so that the recording heads to be simultaneously driven are combined so as to be a combination of the recording heads with different electrical power consumptions.Type: GrantFiled: January 11, 2002Date of Patent: November 11, 2003Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Numata
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Publication number: 20030146952Abstract: Replacement of a recording head on a recording apparatus is detected on the basis of a serial number allocated to each recording head. The recording head also carries head characteristic information such as color information, shading information and so forth. When the recording head is replaced with a new one, the head characteristic information of the newly mounted recording head is automatically stored, so that head driving conditions are automatically determined to optimize the recording conditions without requiring any manual adjustment. Recovery operation is automatically executed when replacement of the recording head is detected, so that required recording conditions are recovered without manual instructions.Type: ApplicationFiled: February 24, 2003Publication date: August 7, 2003Applicant: CANON KABUSHIKI KAISHAInventors: Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Souhei Tanaka, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Miyuki Fujita
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Patent number: 6595515Abstract: The present invention relates to a sheet conveying device for attracting a sheet by electric power and for conveying the sheet, the sheet conveying device comprising a belt arranged with an electrode and a plurality of electric supplying members being aligned in a sheet conveying direction for supplying electric voltage to the electrode. An electric voltage value for an electric supplying members arranged at a primary area upstream in a sheet conveying direction is lower than an electric voltage value for an electric supplying members arranged at a secondary area downstream of the primary area in a sheet conveying direction.Type: GrantFiled: August 10, 2001Date of Patent: July 22, 2003Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Numata, Osamu Kanome, Noriyuki Chino
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Patent number: 6565184Abstract: An ink jet recording apparatus detects loading of an ink cartridge into a loading portion based on information allocated to the cartridge. The cartridge carries characteristic information including information about manufacturing time of the cartridge. A recovery operation is executed by a discharge recovery device with the recovery operation being determined based on a time difference between the manufacturing time of the cartridge and the loading time when the cartridge is loaded into the loading portion.Type: GrantFiled: October 17, 1997Date of Patent: May 20, 2003Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Souhei Tanaka, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Miyuki Fujita
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Patent number: 6457794Abstract: An ink jet recording apparatus is disclosed in which a bubble is created in ink by thermal energy generated in response to a drive signal applied to a heater, and the ink is ejected onto a recording material by expansion of the bubble. The recording apparatus includes a driving device and a changing device. The driving device applies a plurality of driving signals to the heater for each ink droplet ejection. The driving signals include a first driving signal for increasing a temperature of the ink adjacent the heater without creating the bubble, and a second driving signal after the first drive signal for ejecting the ink. An interval is provided between the first and second drive signals. The changing device changes a width of the first drive signal to adjust an amount of ejected ink. The interval is not shorter than 2.6 microseconds and the second drive signal has a constant width.Type: GrantFiled: May 17, 1993Date of Patent: October 1, 2002Assignee: Canon Kabushiki KaishaInventors: Hiroshi Tajika, Yoshiaki Takayanagi, Masayuki Hirose, Souhei Tanaka, Hiromitsu Hirabayashi, Noribumi Koitabashi, Yasuhiro Yamada, Yasuhiro Numata, Hitoshi Sugimoto, Miyuki Matsubara
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Publication number: 20020101466Abstract: A recording apparatus using full-line type ink jet recording heads needs a large amount of electrical power for ink ejection due to a large number of nozzles of the recording heads. Therefore, a power supply capacity of the recording apparatus needs to be increased, resulting in increase in an overall apparatus cost. When simultaneously recording on plural recording media using a recording apparatus having recording heads with different electrical power consumptions arranged in a transfer direction of the recording media, recording is performed so that the recording heads to be simultaneously driven are combined so as to be a combination of the recording heads with different electrical power consumptions.Type: ApplicationFiled: January 11, 2002Publication date: August 1, 2002Applicant: Canon Kabushiki KaishaInventor: Yasuhiro Numata
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Publication number: 20020024576Abstract: The present invention relates to a sheet conveying device for attracting a sheet by electric power and for conveying the sheet, the sheet conveying device comprising a belt arranged with an electrode and a plurality of electric supplying means being aligned in a sheet conveying direction for supplying electric voltage to the electrode. An electric voltage value for an electric supplying means arranged at a primary area upstream in a sheet conveying direction is lower than an electric voltage value for an electric supplying means arranged at a secondary area downstream of the primary area in a sheet conveying direction.Type: ApplicationFiled: August 10, 2001Publication date: February 28, 2002Inventors: Yasuhiro Numata, Osamu Kanome, Noriyuki Chino
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Patent number: 6310636Abstract: A recording method ejects ink by thermal energy produced by a heat generating element of a recording head in response to a drive signal. The method includes the step of controlling an amount of ejection of the ink by a temperature control for the recording head including at least heating of the recording head, when a temperature of the recording head is not higher than a predetermined first temperature. The method further includes the steps of controlling the amount of ejection of the ink by changing a waveform of the drive signal for ejecting ink in accordance with the temperature of the recording head when the temperature of the recording head is higher than the first temperature and not higher than a second temperature, and fixing the waveform of the drive signal when the temperature of the recording head is higher than the second temperature.Type: GrantFiled: March 5, 1998Date of Patent: October 30, 2001Assignee: Canon Kabushiki KaishaInventors: Hiroshi Tajika, Yoshiaki Takayanagi, Masayuki Hirose, Souhei Tanaka, Hiromitsu Hirabayashi, Noribumi Koitabashi, Yasuhiro Yamada, Yasuhiro Numata, Hitoshi Sugimoto, Miyuki Matsubara
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Patent number: 6257701Abstract: An ink jet recording apparatus having an ink recording head detachable therefrom, characterized in that power supply device to the ink recording head is shut off when the recording head is detached therefrom.Type: GrantFiled: October 14, 1997Date of Patent: July 10, 2001Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Otani, Yoshiaki Takayanagi, Noribumi Koitabashi, Yasuhiro Numata
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Patent number: 6231155Abstract: An image recording apparatus includes a recording unit integrally having an image forming recording head and a memory for storing a correction datum for correcting non-uniform image formation property; a reader for reading the correction datum from the memory; and a device for changing image forming conditions in accordance with the correction datum read by the reader. The apparatus also can alter the image forming conditions changed by the changing device when the non-uniformity of the recording unit changes.Type: GrantFiled: August 24, 1998Date of Patent: May 15, 2001Assignee: Canon Kabushiki KaishaInventors: Yutaka Udagawa, Yoshiaki Takayanagi, Katsuyoshi Maeshima, Yasuhiro Numata, Takayuki Matsuo, Miyuki Matsubara
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Patent number: 6164761Abstract: The present invention relates to a sheet adhering conveying apparatus comprising a conveyance belt for holding and feeding a sheet, with a plurality of electrodes embedded in the conveyance belt, each electrode having a voltage receiving portion formed to project above a surface of the conveyance belt and a voltage supply for supplying a voltage to the voltage receiving portions of the electrodes.Type: GrantFiled: September 21, 1999Date of Patent: December 26, 2000Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Numata
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Patent number: 6126266Abstract: Replacement of a recording head on a recording apparatus is detected on the basis of a serial number allocated to each recording head. The recording head also carries head characteristic information such as color information, shading information and so forth. When the recording head is replaced with a new one, the head characteristic information of the newly mounted recording head is automatically stored, so that head driving conditions are automatically determined to optimize the recording conditions without requiring any manual adjustment. Recovery operation is automatically executed when replacement of the recording head is detected, so that required recording conditions are recovered without manual instructions.Type: GrantFiled: October 17, 1997Date of Patent: October 3, 2000Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Numata, Kazuyoshi Takahashi, Yoshiaki Takayanagi, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto, Souhei Tanaka
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Patent number: 6116710Abstract: A recording method in which ink is ejected by thermal energy produced by a heat generating element of a recording head in response to application of a driving signal thereto including the steps of changing a waveform of the driving signal in accordance with a temperature of the recording head; and selecting a fixed waveform of the drive signal when the temperature of the recording head exceeds a predetermined level.Type: GrantFiled: June 7, 1995Date of Patent: September 12, 2000Assignee: Canon Kabushiki KaishaInventors: Hiroshi Tajika, Yoshiaki Takayanagi, Masayuki Hirose, Souhei Tanaka, Hiromitsu Hirabayashi, Noribumi Koitabashi, Yasuhiro Yamada, Yasuhiro Numata, Hitoshi Sugimoto, Miyuki Matsubara
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Patent number: 6109724Abstract: An ink jet recording apparatus comprising, timer means for measring an elapse time from a predetermined measurement start timing, a backup power source for supplying power to said timer means when a main power source is turned off, and control means for changing a content and/or the number of times of a recover operation for recovering and preventing a discharge error in a discharge port for discharging an ink on the basis of the elapse time.Type: GrantFiled: August 22, 1995Date of Patent: August 29, 2000Assignee: Canon Kabushiki KaishaInventors: Kazuyoshi Takahashi, Yasuhiro Numata, Koji Terasawa, Hideo Fukazawa, Hitoshi Miyazaki, Takao Aichi
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Patent number: 6106097Abstract: An ink jet apparatus includes a mounting section for exchangeably mounting a cartridge, devices for performing a recovery operation in order to improve the ink discharge condition of a recording head, and components for confirming the exchange history of the cartridge and a recording operation, these components having a confirmation result. A controller serves to control the recovery operation which is performed by the recovery means according to the confirmation result of the confirming elements. The controller makes the recovery devices operate when it is confirmed that a new cartridge is mounted on the mounting section.Type: GrantFiled: January 29, 1997Date of Patent: August 22, 2000Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Otani, Yoshiaki Takayanagi, Noribumi Koitabashi, Yasuhiro Numata