Patents by Inventor Yasufumi Ogasawara
Yasufumi Ogasawara 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: 10949139Abstract: A printing apparatus accepts an input related to a secure print job, controls a size of a spool area in a predetermined memory for secure print jobs in response to an input related to the accepted secure print job, and executes secure printing based on the secure print job in response to a user operation. Non-secure printing is executed based on a non-secure print job without a user operation being performed, acceptance of the input related to the secure print job is acceptance of an input indicating that an environment of the printing apparatus is an environment in which secure printing is executed more than non-secure printing, and in response to the accepted input, the size of the spool area for secure print jobs in the predetermined memory becomes larger than a size of a spool area for non-secure print jobs in the predetermined memory.Type: GrantFiled: December 31, 2019Date of Patent: March 16, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Yasufumi Ogasawara
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Publication number: 20200241808Abstract: A printing apparatus having a predetermined memory used as a spool buffer for print jobs, the apparatus comprising: an acceptance unit configured to accept an input related to a secure print job; a control unit configured to control a size of a spool area for secure print jobs in the predetermined memory in response to an input related to the accepted secure print job; and a printing unit configured to execute secure printing based on the secure print job in response to a user operation on the printing apparatus being performed after the secure print job is transmitted from an information processing apparatus.Type: ApplicationFiled: December 31, 2019Publication date: July 30, 2020Inventor: Yasufumi Ogasawara
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Patent number: 10245862Abstract: A power supply apparatus includes a power source unit configured to supply electric power to an electric load, a capacitor connected to a power supply line extending from the power supply unit to the electric load, a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit, a specifying unit configured to specify a voltage value of the capacitor, a first determination unit configured to determine whether the charge of the capacitor is completed in accordance with the voltage specified by the specifying unit, and a second determination unit configured to determine whether the voltage specified by the specifying unit is equal to or smaller than an error threshold value after the first determination unit determines that the charge of the capacitor is completed.Type: GrantFiled: May 23, 2016Date of Patent: April 2, 2019Assignee: Canon Kabushiki KaishaInventors: Yasufumi Ogasawara, Takashi Sakai, Hisao Okita, Shinya Ishikawa, Toru Oshika
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Patent number: 9868282Abstract: A control apparatus including a power supply unit configured to supply electric power, comprises: a capacitor connected to a power supply line extending from the power supply unit to a printhead; a discharge circuit configured to release charge stored in the capacitor; and a control unit configured to control a current value during a discharge operation by the discharge circuit, such that the current value increases as a voltage value of the capacitor decreases.Type: GrantFiled: May 12, 2016Date of Patent: January 16, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Shinya Ishikawa, Yasufumi Ogasawara, Hisao Okita, Takashi Sakai, Toru Oshika
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Patent number: 9862216Abstract: A power supply apparatus includes a power source unit supplying power to an electric load through a power supply line, a capacitor connected to the power supply line, a charge circuit charging the capacitor while restricting a current value of the power supplied from the power source unit, a detection unit detecting a voltage value of the capacitor, a controller which switches, after the charge of the capacitor is completed, a current value of the charge circuit to a first current value smaller than a current value supplied before the charge of the capacitor is completed, a first determination unit determining whether a first condition is satisfied based on the voltage value detected by the detection unit after the charge of the capacitor is completed, and a second determination unit determining whether an error process is to be performed based on a determination result of the first determination unit.Type: GrantFiled: May 24, 2016Date of Patent: January 9, 2018Assignee: Canon Kabushiki KaishaInventors: Hisao Okita, Yasufumi Ogasawara, Takashi Sakai, Toru Oshika, Shinya Ishikawa
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Publication number: 20160347103Abstract: A power supply apparatus includes a power source unit supplying power to an electric load through a power supply line, a capacitor connected to the power supply line, a charge circuit charging the capacitor while restricting a current value of the power supplied from the power source unit, a detection unit detecting a voltage value of the capacitor, a controller which switches, after the charge of the capacitor is completed, a current value of the charge circuit to a first current value smaller than a current value supplied before the charge of the capacitor is completed, a first determination unit determining whether a first condition is satisfied based on the voltage value detected by the detection unit after the charge of the capacitor is completed, and a second determination unit determining whether an error process is to be performed based on a determination result of the first determination unit.Type: ApplicationFiled: May 24, 2016Publication date: December 1, 2016Inventors: Hisao Okita, Yasufumi Ogasawara, Takashi Sakai, Toru Oshika, Shinya Ishikawa
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Publication number: 20160347059Abstract: A control apparatus including a power supply unit configured to supply electric power, comprises: a capacitor connected to a power supply line extending from the power supply unit to a printhead; a discharge circuit configured to release charge stored in the capacitor; and a control unit configured to control a current value during a discharge operation by the discharge circuit, such that the current value increases as a voltage value of the capacitor decreases.Type: ApplicationFiled: May 12, 2016Publication date: December 1, 2016Inventors: Shinya Ishikawa, Yasufumi Ogasawara, Hisao Okita, Takashi Sakai, Toru Oshika
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Publication number: 20160347097Abstract: A power supply apparatus includes a power source unit configured to supply electric power to an electric load, a capacitor connected to a power supply line extending from the power supply unit to the electric load, a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit, a specifying unit configured to specify a voltage value of the capacitor, a first determination unit configured to determine whether the charge of the capacitor is completed in accordance with the voltage specified by the specifying unit, and a second determination unit configured to determine whether the voltage specified by the specifying unit is equal to or smaller than an error threshold value after the first determination unit determines that the charge of the capacitor is completed.Type: ApplicationFiled: May 23, 2016Publication date: December 1, 2016Inventors: Yasufumi Ogasawara, Takashi Sakai, Hisao Okita, Shinya Ishikawa, Toru Oshika
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Patent number: 8833903Abstract: An inkjet recording apparatus may include a recording unit, an ink receiver, and a control unit. The recording unit records an image on a sheet by causing a recording head including a plurality of nozzle arrays to reciprocate along a surface of the sheet in a direction in which the plurality of nozzle arrays is arranged. The ink receiver receives ink ejected outside the sheet in preliminary ejection from the recording head. Depending on a recording region on the sheet and which of the plurality of nozzle arrays is or are to be used for recording, the control unit determines a reversing position at which the recording head is reversed in direction of the reciprocation such that all of the plurality of nozzle arrays pass over the ink receiver in a single scan included in the reciprocation.Type: GrantFiled: July 28, 2011Date of Patent: September 16, 2014Assignee: Canon Kabushiki KaishaInventors: Akiyoshi Sahara, Yasufumi Ogasawara, Takeaki Nakano
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Patent number: 8830173Abstract: A signal line used in a key matrix is shared between a signal line used in a first display unit and a signal line used in a second display unit. Two types of periodical pulse signals are superimposed on a level signal which indicates data displayed on the second display unit. One type is a pulse signal for detecting key input and another type is a pulse signal which indicates data displayed on the first display unit.Type: GrantFiled: August 30, 2011Date of Patent: September 9, 2014Assignee: Canon Kabushiki KaishaInventors: Yuichi Naoi, Yasufumi Ogasawara
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Patent number: 8664799Abstract: An apparatus which has a load that consumes a predetermined amount of electric power per unit time includes a power source circuit configured to generate a voltage for driving the load, a capacitor which is connected to a supply line for supplying electric power to the load from the power source circuit and configured to stabilize a potential of the load, a first supply circuit which can supply electric power smaller than the predetermined amount to the capacitor and can discharge a charge from the capacitor, a second supply circuit which can supply electric power larger than the predetermined amount to the capacitor, a switch circuit configured to operate each of the first supply circuit and the second supply circuit, and a holding circuit configured to hold information based on the operation of the first supply circuit.Type: GrantFiled: June 17, 2010Date of Patent: March 4, 2014Assignee: Canon Kabushiki KaishaInventors: Yasufumi Ogasawara, Yuichi Naoi, Shinji Takagi
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Patent number: 8533364Abstract: An interface circuit provided with a first input/output unit and a second input/output unit which respectively access external apparatuses to which electric power is supplied from power sources via different electric power supply lines includes an acquisition unit configured to acquire information whether electric power is supplied to the respective external apparatuses based on a command from the outside; a selection circuit configured to select an input/output unit corresponding to an external apparatus to which electric power is supplied, from the first input/output unit and the second input/output unit based on the information acquired by the acquisition unit; and a control circuit configured to output an instruction corresponding to the command, to the external apparatus to which electric power is supplied, via the input/output unit selected by the selection circuit.Type: GrantFiled: December 28, 2011Date of Patent: September 10, 2013Assignee: Canon Kabushiki KaishaInventor: Yasufumi Ogasawara
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Publication number: 20120110362Abstract: An interface circuit provided with a first input/output unit and a second input/output unit which respectively access external apparatuses to which electric power is supplied from power sources via different electric power supply lines includes an acquisition unit configured to acquire information whether electric power is supplied to the respective external apparatuses based on a command from the outside; a selection circuit configured to select an input/output unit corresponding to an external apparatus to which electric power is supplied, from the first input/output unit and the second input/output unit based on the information acquired by the acquisition unit; and a control circuit configured to output an instruction corresponding to the command, to the external apparatus to which electric power is supplied, via the input/output unit selected by the selection circuit.Type: ApplicationFiled: December 28, 2011Publication date: May 3, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Yasufumi Ogasawara
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Publication number: 20120044290Abstract: An inkjet recording apparatus may include a recording unit, an ink receiver, and a control unit. The recording unit records an image on a sheet by causing a recording head including a plurality of nozzle arrays to reciprocate along a surface of the sheet in a direction in which the plurality of nozzle arrays is arranged. The ink receiver receives ink ejected outside the sheet in preliminary ejection from the recording head. Depending on a recording region on the sheet and which of the plurality of nozzle arrays is or are to be used for recording, the control unit determines a reversing position at which the recording head is reversed in direction of the reciprocation such that all of the plurality of nozzle arrays pass over the ink receiver in a single scan included in the reciprocation.Type: ApplicationFiled: July 28, 2011Publication date: February 23, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Akiyoshi Sahara, Yasufumi Ogasawara, Takeaki Nakano
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Patent number: 8108561Abstract: An interface circuit provided with a first input/output unit and a second input/output unit which respectively access external apparatuses to which electric power is supplied from power sources via different electric power supply lines includes an acquisition unit configured to acquire information whether electric power is supplied to the respective external apparatuses based on a command from the outside; a selection circuit configured to select an input/output unit corresponding to an external apparatus to which electric power is supplied, from the first input/output unit and the second input/output unit based on the information acquired by the acquisition unit; and a control circuit configured to output an instruction corresponding to the command, to the external apparatus to which electric power is supplied, via the input/output unit selected by the selection circuit.Type: GrantFiled: August 1, 2008Date of Patent: January 31, 2012Assignee: Canon Kabushiki KaishaInventor: Yasufumi Ogasawara
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Patent number: 8095705Abstract: A wireless communicating function is provided for a printer, a digital camera, a computer, or another external apparatus can be connected without needing an operation, such as a connection exchange of a device or the like, and the burden on the power supply on the printer can be lightened. A wireless communicating apparatus has a first universal serial bus I/F for connecting to the printer, a communication control unit for allowing the printer to make wireless communication with another external wireless apparatus, and a second universal serial bus I/F for connecting an external universal serial bus apparatus. Either the communication control unit or the second universal serial bus I/F is connected to the first universal serial bus I/F in accordance with a connecting state of the external universal serial bus apparatus to the second universal serial bus I/F.Type: GrantFiled: June 5, 2006Date of Patent: January 10, 2012Assignee: Canon Kabushiki KaishaInventor: Yasufumi Ogasawara
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Publication number: 20110316786Abstract: A signal line used in a key matrix is shared between a signal line used in a first display unit and a signal line used in a second display unit. Two types of periodical pulse signals are superimposed on a level signal which indicates data displayed on the second display unit. One type is a pulse signal for detecting key input and another type is a pulse signal which indicates data displayed on the first display unit.Type: ApplicationFiled: August 30, 2011Publication date: December 29, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Yuichi Naoi, Yasufumi Ogasawara
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Patent number: 8031179Abstract: A signal line used in a key matrix is shared between a signal line used in a first display unit and a signal line used in a second display unit. Two types of periodical pulse signals are superimposed on a level signal which indicates data displayed on the second display unit. One type is a pulse signal for detecting key input and another type is a pulse signal which indicates data displayed on the first display unit.Type: GrantFiled: June 22, 2007Date of Patent: October 4, 2011Assignee: Canon Kabushiki KaishaInventors: Yuichi Naoi, Yasufumi Ogasawara
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Publication number: 20100320984Abstract: An apparatus which has a load that consumes a predetermined amount of electric power per unit time includes a power source circuit configured to generate a voltage for driving the load, a capacitor which is connected to a supply line for supplying electric power to the load from the power source circuit and configured to stabilize a potential of the load, a first supply circuit which can supply electric power smaller than the predetermined amount to the capacitor and can discharge a charge from the capacitor, a second supply circuit which can supply electric power larger than the predetermined amount to the capacitor, a switch circuit configured to operate each of the first supply circuit and the second supply circuit, and a holding circuit configured to hold information based on the operation of the first supply circuit.Type: ApplicationFiled: June 17, 2010Publication date: December 23, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Yasufumi Ogasawara, Yuichi Naoi, Shinji Takagi
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Publication number: 20090051404Abstract: An interface circuit provided with a first input/output unit and a second input/output unit which respectively access external apparatuses to which electric power is supplied from power sources via different electric power supply lines includes an acquisition unit configured to acquire information whether electric power is supplied to the respective external apparatuses based on a command from the outside; a selection circuit configured to select an input/output unit corresponding to an external apparatus to which electric power is supplied, from the first input/output unit and the second input/output unit based on the information acquired by the acquisition unit; and a control circuit configured to output an instruction corresponding to the command, to the external apparatus to which electric power is supplied, via the input/output unit selected by the selection circuit.Type: ApplicationFiled: August 1, 2008Publication date: February 26, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Yasufumi Ogasawara