Patents by Inventor Hironori Naka
Hironori Naka 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: 11969996Abstract: An object of the present disclosure is to perform both heater drive control and fuse drive control without increasing the number of signal lines. One embodiment of the present invention is a printing apparatus including: a print head having a plurality of heaters for heating and ejecting ink and a fuse for retaining information; and a print head control unit configured to control the print head, and the print head control unit has a heater drive control unit configured to control drive of the plurality of heaters and a write pulse generation unit configured to generate a write pulse for performing write for the fuse and data that is generated by the heater drive control unit and the write pulse are transmitted from the print head control unit to the print head via an identical terminal and an identical signal line.Type: GrantFiled: March 9, 2022Date of Patent: April 30, 2024Assignee: Canon Kabushiki KaishaInventors: Kazuki Hirobe, Hironori Naka
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Patent number: 11845271Abstract: An electronic device inputs a voltage from each of a first and a second constant voltage sources, amplifies the inputted voltage, and converts the inputted voltage or a voltage amplified by an amplifier into a digital value. Using a first and a second digital values based on the inputted voltage, and a third and fourth digital values based on the inputted, amplified and converted voltage, an amplification factor of the amplifier and an offset voltage of the amplifier are calculated, and the amplifier is corrected based on the calculated amplification factor and offset voltage.Type: GrantFiled: September 28, 2021Date of Patent: December 19, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Hideyuki Ueki, Shinya Ishikawa, Hironori Naka, Hiroyuki Takahashi, Yuta Shinsawatsu, Kotaro Kimoto
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Patent number: 11766861Abstract: An ink jet printing apparatus comprises a controller and a printhead control unit positioned between the controller and the printhead and configured to control the printhead upon an instruction from the controller. The controller comprises a control unit configured to, in a case where transmission of an instruction to the printhead control unit failed, if the instruction is an instruction included in a first communication sequence performed periodically with respect to the printhead control unit in order to control the printhead, not execute a retry of the failed instruction, and in a case where the instruction is an instruction included in a second communication sequence performed aperiodically with respect to the printhead control unit in order to control the printhead, retry the failed instruction.Type: GrantFiled: October 13, 2021Date of Patent: September 26, 2023Assignee: Canon Kabushiki KaishaInventors: Hironori Naka, Hiroyuki Takahashi, Yuta Shinsawatsu, Shinya Ishikawa, Hideyuki Ueki, Kotaro Kimoto
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Publication number: 20220288929Abstract: An element substrate is provided with a fuse memory configured to store information in response to having a voltage applied thereto, a first switch configured to switch whether or not to energize the fuse memory, a resistance element, a second switch configured to switch whether or not to energize the resistance element, a first node connected to the fuse memory and the resistance element, and a second node configured to supply power to the first node from outside. Regarding the element substrate, electric charge that remains at the first node is discharged by allowing, before allowing the first switch to energize the fuse memory, the second switch to energize the resistance element from the first node.Type: ApplicationFiled: March 11, 2022Publication date: September 15, 2022Inventors: Hironori Naka, Kazuki Hirobe
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Publication number: 20220288923Abstract: An object of the present disclosure is to perform both heater drive control and fuse drive control without increasing the number of signal lines. One embodiment of the present invention is a printing apparatus including: a print head having a plurality of heaters for heating and ejecting ink and a fuse for retaining information; and a print head control unit configured to control the print head, and the print head control unit has a heater drive control unit configured to control drive of the plurality of heaters and a write pulse generation unit configured to generate a write pulse for performing write for the fuse and data that is generated by the heater drive control unit and the write pulse are transmitted from the print head control unit to the print head via an identical terminal and an identical signal line.Type: ApplicationFiled: March 9, 2022Publication date: September 15, 2022Inventors: Kazuki Hirobe, Hironori Naka
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Publication number: 20220111635Abstract: An ink jet printing apparatus comprises a controller and a printhead control unit positioned between the controller and the printhead and configured to control the printhead upon an instruction from the controller. The controller comprises a control unit configured to, in a case where transmission of an instruction to the printhead control unit failed, if the instruction is an instruction included in a first communication sequence performed periodically with respect to the printhead control unit in order to control the printhead, not execute a retry of the failed instruction, and in a case where the instruction is an instruction included in a second communication sequence performed aperiodically with respect to the printhead control unit in order to control the printhead, retry the failed instruction.Type: ApplicationFiled: October 13, 2021Publication date: April 14, 2022Inventors: Hironori Naka, Hiroyuki Takahashi, Yuta Shinsawatsu, Shinya Ishikawa, Hideyuki Ueki, Kotaro Kimoto
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Publication number: 20220105720Abstract: An electronic device inputs a voltage from each of a first and a second constant voltage sources, amplifies the inputted voltage, and converts the inputted voltage or a voltage amplified by an amplifier into a digital value. Using a first and a second digital values based on the inputted voltage, and a third and fourth digital values based on the inputted, amplified and converted voltage, an amplification factor of the amplifier and an offset voltage of the amplifier are calculated, and the amplifier is corrected based on the calculated amplification factor and offset voltage.Type: ApplicationFiled: September 28, 2021Publication date: April 7, 2022Inventors: Hideyuki Ueki, Shinya Ishikawa, Hironori Naka, Hiroyuki Takahashi, Yuta Shinsawatsu, Kotaro Kimoto
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Patent number: 9216601Abstract: An embodiment of this invention relates to an electric device capable of controlling a plurality of elements with an inexpensive, simple configuration, and a printing apparatus using the same. In this embodiment, an operation unit of the printing apparatus switches the states of a plurality of general purpose input/output ports between low-level signal output, high-level signal output, and input high impedance for each time set in a timer by an MPU. This allows LED light emission control and switch key press detection. Also, output ports used for LED light emission control, and input ports used for key press detection are shared using general purpose input/output ports to realize LED light emission control and switch key press detection with a configuration simpler than the conventional configuration.Type: GrantFiled: June 5, 2013Date of Patent: December 22, 2015Assignee: CANON KABUSHIKI KAISHAInventor: Hironori Naka
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Publication number: 20140002517Abstract: An embodiment of this invention relates to an electric device capable of controlling a plurality of elements with an inexpensive, simple configuration, and a printing apparatus using the same. In this embodiment, an operation unit of the printing apparatus switches the states of a plurality of general purpose input/output ports between low-level signal output, high-level signal output, and input high impedance for each time set in a timer by an MPU. This allows LED light emission control and switch key press detection. Also, output ports used for LED light emission control, and input ports used for key press detection are shared using general purpose input/output ports to realize LED light emission control and switch key press detection with a configuration simpler than the conventional configuration.Type: ApplicationFiled: June 5, 2013Publication date: January 2, 2014Inventor: Hironori Naka
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Patent number: 8510617Abstract: To suppress deterioration in image quality even if skew occurs during conveyance of a medium, an apparatus, which is configured to record on the medium conveyed in a direction that intersects an array direction of a plurality of recording elements using a recording head on which the recording elements are arranged, includes a table in which the recording elements are divided into a plurality of groups, and which includes correction information corresponding to the recording elements for each group, a first acquisition unit configured to acquire position information about the medium in the array direction, a second acquisition unit configured to acquire the correction information based on the position information and the table, and a correction unit configured to correct image data based on the correction information.Type: GrantFiled: December 1, 2010Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventor: Hironori Naka
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Publication number: 20110307763Abstract: To suppress deterioration in image quality even if skew occurs during conveyance of a medium, an apparatus, which is configured to record on the medium conveyed in a direction that intersects an array direction of a plurality of recording elements using a recording head on which the recording elements are arranged, includes a table in which the recording elements are divided into a plurality of groups, and which includes correction information corresponding to the recording elements for each group, a first acquisition unit configured to acquire position information about the medium in the array direction, a second acquisition unit configured to acquire the correction information based on the position information and the table, and a correction unit configured to correct image data based on the correction information.Type: ApplicationFiled: December 1, 2010Publication date: December 15, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Hironori Naka