Patents by Inventor Satoshi Kitai
Satoshi Kitai 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: 11981132Abstract: In at least one embodiment, a number of nozzle rows in a first area on a side of one end of a first substrate closest to one end of a print head is set to be lower than a number of nozzle rows on a central side of the print head relative to the first area, and energy for driving the element on the first substrate is set to be larger than energy for driving the element on a second substrate on the central side of the print head relative to the first substrate to set a dot to be formed on the recording medium by ink discharged from a nozzle in the first area to be larger than a dot to be formed on the recording medium by ink discharged from a nozzle in the second substrate.Type: GrantFiled: June 27, 2022Date of Patent: May 14, 2024Assignee: Canon Kabushiki KaishaInventor: Satoshi Kitai
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Patent number: 11845268Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles, each configured to discharge ink, and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. The apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.Type: GrantFiled: April 20, 2021Date of Patent: December 19, 2023Assignee: Canon Kabushiki KaishaInventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
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Publication number: 20220410568Abstract: In at least one embodiment, a number of nozzle rows in a first area on a side of one end of a first substrate closest to one end of a print head is set to be lower than a number of nozzle rows on a central side of the print head relative to the first area, and energy for driving the element on the first substrate is set to be larger than energy for driving the element on a second substrate on the central side of the print head relative to the first substrate to set a dot to be formed on the recording medium by ink discharged from a nozzle in the first area to be larger than a dot to be formed on the recording medium by ink discharged from a nozzle in the second substrate.Type: ApplicationFiled: June 27, 2022Publication date: December 29, 2022Inventor: Satoshi Kitai
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Publication number: 20220016882Abstract: A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.Type: ApplicationFiled: October 1, 2021Publication date: January 20, 2022Inventors: Masahiko Umezawa, Kouichi Serizawa, Satoshi Kitai, Yoshiaki Murayama, Takeshi Murase
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Patent number: 11155078Abstract: A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.Type: GrantFiled: August 7, 2019Date of Patent: October 26, 2021Assignee: Canon Kabushiki KaishaInventors: Masahiko Umezawa, Kouichi Serizawa, Satoshi Kitai, Yoshiaki Murayama, Takeshi Murase
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Publication number: 20210252851Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles each configured to discharge ink and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. More specifically, the apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.Type: ApplicationFiled: April 20, 2021Publication date: August 19, 2021Inventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
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Patent number: 11020959Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles, each configured to discharge ink, and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. The apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.Type: GrantFiled: August 7, 2019Date of Patent: June 1, 2021Assignee: Canon Kabushiki KaishaInventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
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Patent number: 10596812Abstract: According to an embodiment of the present invention, to improve processing performance, a printing apparatus that performs printing by using a printhead formed by a plurality of headchips includes one CPU, a table configured to store processing contents set by the CPU, and a plurality of processing units configured to process, in parallel, printing data to be used in each headchip by commonly using the table and in accordance with the processing contents set in the table. In addition, the apparatus includes a plurality of control units configured to wait for the completion of the processing of each processing unit, synchronize the plurality of processing units for next processing, and cause each of the processing units to execute the next processing in accordance with the processing contents set in the table.Type: GrantFiled: May 29, 2018Date of Patent: March 24, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Satoshi Kitai, Masahiko Umezawa, Kouichi Serizawa, Kazuya Koizumi
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Patent number: 10576737Abstract: A recording apparatus includes a recording head having a plurality of recording elements configured to generate energy for discharging ink, a first heating element configured to heat ink in the vicinity of one of said recording elements positioned at a first position, insufficiently to discharge ink, and a second heating element positioned at a second position different from the first position, which are arranged on a same substrate, a heating control unit configured to control the heating operation of the ink by driving the first and the second heating elements by applying voltage to the first and the second heating elements, and a recording control unit configured to control the recording operation by driving the plurality of recording elements, wherein the heating control unit is configured to control the heating operation to drive the first heating element and the second heating element at timings different from each other.Type: GrantFiled: March 28, 2018Date of Patent: March 3, 2020Assignee: Canon Kabushiki KaishaInventors: Kouichi Serizawa, Satoshi Kitai, Masahiko Umezawa, Atsushi Takahashi
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Publication number: 20200047491Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles each configured to discharge ink and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. More specifically, the apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.Type: ApplicationFiled: August 7, 2019Publication date: February 13, 2020Inventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
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Publication number: 20200047492Abstract: A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.Type: ApplicationFiled: August 7, 2019Publication date: February 13, 2020Inventors: Masahiko Umezawa, Kouichi Serizawa, Satoshi Kitai, Yoshiaki Murayama, Takeshi Murase
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Patent number: 10507646Abstract: Priority order is updated so that an ejection port that is selected as an ejection port subjected to ejection failure determination in a pixel row in which a previous ejection operation is to be performed has the lowest priority order, which is used for selecting an ejection port subjected to ejection failure determination, in a pixel row in which a subsequent ejection operation is to be performed.Type: GrantFiled: September 19, 2017Date of Patent: December 17, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Satoshi Kitai, Kouichi Serizawa, Masahiko Umezawa, Atsushi Takahashi, Shinsuke Ikegami, Takeshi Murase, Masashi Hayashi, Yuki Sawai
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Patent number: 10500840Abstract: A printing apparatus includes a control unit that, when continuously printing on a plurality of cut sheets of a same size, controls a print unit to cause a transfer member to continue movement, controls the print unit and a supply unit so as to stop supply of a cut sheet by the supply unit based on information concerning a time taken to process image data representing an image of a print target by an image processing unit, and controls the print unit not to form an ink image in a partial area on the transfer member that passes through a transfer area at a timing when the supply of the cut sheet to the transfer area is stopped, and to form the ink image in a remaining area.Type: GrantFiled: March 20, 2018Date of Patent: December 10, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Masahiko Umezawa, Satoshi Kitai, Kouichi Serizawa, Atsushi Takahashi
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Patent number: 10293620Abstract: An inkjet printing apparatus uses a printing head including a plurality of nozzle arrays each including a plurality of nozzles arrayed in a first direction, the nozzle arrays being arranged in a second direction. A compensating unit compensates for an ejection failure of a defective nozzle by causing a compensating nozzle to eject ink to a predetermined pixel area in a case where the print data corresponding to the defective nozzle indicates ink ejection to the predetermined pixel area. The compensating unit determines the compensating nozzle such that the compensating nozzle satisfies both a first condition that the compensating nozzle is not a defective nozzle and a second condition that the print data indicates that nozzles belonging to the nozzle array including the compensating nozzle do not eject ink to a pixel area corresponding to N pixels (N is a positive integer) around the predetermined pixel area in the first direction.Type: GrantFiled: July 24, 2017Date of Patent: May 21, 2019Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa
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Patent number: 10286650Abstract: A pixel row in an arrangement direction or an orthogonal direction is divided into processing groups including pixels at every predetermined pixel count in the pixel row. Nondischarge complementary processing is sequentially performed on the divided plurality of processing groups.Type: GrantFiled: August 4, 2017Date of Patent: May 14, 2019Assignee: Canon Kabushiki KaishaInventors: Satoshi Kitai, Masahiko Umezawa, Yoshiaki Murayama
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Publication number: 20190084026Abstract: The present disclosure is applied to a press molding method for press-molding a workpiece by a press die composed of an upper die and a lower die while holding the workpiece by a die cushion. The press molding method according to the present disclosure includes pressing process, in which a press position at which the workpiece is pressed by the press die is gradually lowered while repeatedly pressing and releasing the workpiece by the press die a plurality of times until the press position reaches a bottom dead center, wherein in the pressing process, a holding force for holding the workpiece by the die cushion is controlled separately from a press molding force for press-molding the workpiece by the press die.Type: ApplicationFiled: August 21, 2018Publication date: March 21, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunihiro TSUNEKAWA, Satoshi KITAI, Hirokazu MORISHITA, lsamu URATA, Asahiko HASEBE
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Publication number: 20180345664Abstract: According to an embodiment of the present invention, to improve processing performance, a printing apparatus that performs printing by using a printhead formed by a plurality of headchips includes one CPU, a table configured to store processing contents set by the CPU, and a plurality of processing units configured to process, in parallel, printing data to be used in each headchip by commonly using the table and in accordance with the processing contents set in the table. In addition, the apparatus includes a plurality of control units configured to wait for the completion of the processing of each processing unit, synchronize the plurality of processing units for next processing, and cause each of the processing units to execute the next processing in accordance with the processing contents set in the table.Type: ApplicationFiled: May 29, 2018Publication date: December 6, 2018Inventors: Satoshi Kitai, Masahiko Umezawa, Kouichi Serizawa, Kazuya Koizumi
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Publication number: 20180281399Abstract: A recording apparatus includes a recording head having a plurality of recording elements configured to generate energy for discharging ink, a first heating element configured to heat ink in the vicinity of one of said recording elements positioned at a first position, insufficiently to discharge ink, and a second heating element positioned at a second position different from the first position, which are arranged on a same substrate, a heating control unit configured to control the heating operation of the ink by driving the first and the second heating elements by applying voltage to the first and the second heating elements, and a recording control unit configured to control the recording operation by driving the plurality of recording elements, wherein the heating control unit is configured to control the heating operation to drive the first heating element and the second heating element at timings different from each other.Type: ApplicationFiled: March 28, 2018Publication date: October 4, 2018Inventors: Kouichi Serizawa, Satoshi Kitai, Masahiko Umezawa, Atsushi Takahashi
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Publication number: 20180281382Abstract: There is provided a printing apparatus having a transfer member that moves to cyclically pass through a formation area of an ink image and a transfer area where the ink image is transferred to a cut sheet, and a supply that supplies the cut sheet to the transfer member continuously. The printing apparatus controls, when continuously printing on a plurality of cut sheets of the same size, stops the supply of the cut sheet based on a time taken to process image data representing an image of a print target, does not form the ink image in a partial area on the transfer member that passes through the transfer area at a timing when the supply of the cut sheet is stopped, and forms the ink image in a remaining area, while continuing the movement of the transfer member.Type: ApplicationFiled: March 20, 2018Publication date: October 4, 2018Inventors: Masahiko Umezawa, Satoshi Kitai, Kouichi Serizawa, Atsushi Takahashi
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Publication number: 20180086048Abstract: Priority order is updated so that an ejection port that is selected as an ejection port subjected to ejection failure determination in a pixel row in which a previous ejection operation is to be performed has the lowest priority order, which is used for selecting an ejection port subjected to ejection failure determination, in a pixel row in which a subsequent ejection operation is to be performed.Type: ApplicationFiled: September 19, 2017Publication date: March 29, 2018Inventors: Satoshi Kitai, Kouichi Serizawa, Masahiko Umezawa, Atsushi Takahashi, Shinsuke Ikegami, Takeshi Murase, Masashi Hayashi, Yuki Sawai