Patents by Inventor Mizuki Ishimoto
Mizuki Ishimoto 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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Publication number: 20240044784Abstract: A detecting apparatus includes first and second light emitting elements configured to emit light on a recording material, and a light receiving unit configured to receive the light transmitted through the recording material. The apparatus also includes a rotation member configured to rotate and press the recording material, on which the first light and the second light is emitted, against a conveyance guide for guiding the recording material. As viewed in a rotational axis direction of the rotation member, a first light path connecting the first light emitting element with the light receiving unit and a second light path connecting the second light emitting element with the light receiving unit overlap with the cylindrical member.Type: ApplicationFiled: October 11, 2023Publication date: February 8, 2024Inventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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Patent number: 11815453Abstract: A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.Type: GrantFiled: July 20, 2022Date of Patent: November 14, 2023Assignee: Canon Kabushiki KaishaInventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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Patent number: 11635721Abstract: A first light guide guides first light in a first light guiding path. The first light is of light irradiated from the light source to a sheet. A first detection unit receives reflected light from the sheet and outputs an image signal indicating an image of a surface of the sheet. A second light guide guides second light in a second light guiding path different from the first light guiding path. The second light is of the light irradiated from the light source and is different from the first light. A second detection unit receives the second light and output a detection signal corresponding to a light amount of the second light. A control unit controls a light emission amount of the light source based on the detection signal.Type: GrantFiled: January 5, 2022Date of Patent: April 25, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Masafumi Monde, Mizuki Ishimoto, Yu Miyajima, Norio Matsui
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Publication number: 20220349817Abstract: A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.Type: ApplicationFiled: July 20, 2022Publication date: November 3, 2022Inventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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Patent number: 11415508Abstract: A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.Type: GrantFiled: May 12, 2021Date of Patent: August 16, 2022Assignee: Canon Kabushiki KaishaInventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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Patent number: 11360410Abstract: An image forming apparatus includes a toner storing portion, a stirring member that stirs the toner by rotating inside the toner storing portion, a driving unit for rotating the stirring member in a first rotation direction and in an opposite second rotation direction. A control portion controls the motor such that a rotation direction of the stirring member is changed from the first rotation direction to the second rotation direction, and a detection unit that detects a rotation state of the motor, wherein the control portion determines whether to end the rotating operation or not based on the rotation state detected by the detection unit, and wherein the rotation state includes a rotation speed or a rotation amount of the motor.Type: GrantFiled: April 9, 2021Date of Patent: June 14, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Mizuki Ishimoto, Masatoshi Itoh
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Patent number: 11353815Abstract: A recording material determination device includes a transmission unit, a drive unit, a reception unit, and a control unit. The drive unit outputs a drive signal for transmitting an ultrasonic wave from the transmission unit to the reception unit. The control unit determines a type of a recording material, based on a first value of the ultrasonic wave through the recording material received by the reception unit in a first mode for outputting a first number of drive signals from the drive unit in a first period, and a second value of the ultrasonic wave through the recording material received by the reception unit in a second mode for outputting a second number of drive signals from the drive unit in a second period. The second number of drive signals is greater than the first number of drive signals.Type: GrantFiled: June 4, 2021Date of Patent: June 7, 2022Assignee: Canon Kabushiki KaishaInventors: Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto
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Publication number: 20220128938Abstract: A first light guide guides first light in a first light guiding path. The first light is of light irradiated from the light source to a sheet. A first detection unit receives reflected light from the sheet and outputs an image signal indicating an image of a surface of the sheet. A second light guide guides second light in a second light guiding path different from the first light guiding path. The second light is of the light irradiated from the light source and is different from the first light. A second detection unit receives the second light and output a detection signal corresponding to a light amount of the second light. A control unit controls a light emission amount of the light source based on the detection signal.Type: ApplicationFiled: January 5, 2022Publication date: April 28, 2022Inventors: Masafumi Monde, Mizuki Ishimoto, Yu Miyajima, Norio Matsui
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Recording material determination apparatus and image forming apparatus that receive ultrasonic waves
Patent number: 11256205Abstract: A recording material determination apparatus includes a transmission unit, a reception unit, and a determination unit. The transmission unit transmits an ultrasonic wave to a recording material. The reception unit vibrates when the reception unit receives the ultrasonic wave having been transmitted from the transmission unit and having passed through the recording material, and outputs a signal corresponding to a vibration state. The determination unit determines a basis weight of the recording material in accordance with the signal output from the reception unit. A resonance frequency of the reception unit differs from a resonance frequency of the transmission unit, and the reception unit is capable of receiving a sound wave in an ultrasonic range and a sound wave in an audible range.Type: GrantFiled: December 31, 2020Date of Patent: February 22, 2022Assignee: Canon Kabushiki KaishaInventors: Junya Azami, Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto -
Patent number: 11249429Abstract: A first light guide guides first light in a first light guiding path. The first light is of light irradiated from the light source to a sheet. A first detection unit receives reflected light from the sheet and outputs an image signal indicating an image of a surface of the sheet. A second light guide guides second light in a second light guiding path different from the first light guiding path. The second light is of the light irradiated from the light source and is different from the first light. A second detection unit receives the second light and output a detection signal corresponding to a light amount of the second light. A control unit controls a light emission amount of the light source based on the detection signal.Type: GrantFiled: March 31, 2020Date of Patent: February 15, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Masafumi Monde, Mizuki Ishimoto, Yu Miyajima, Norio Matsui
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Publication number: 20210405566Abstract: A recording material determination device includes a transmission unit, a drive unit, a reception unit, and a control unit. The drive unit outputs a drive signal for transmitting an ultrasonic wave from the transmission unit to the reception unit. The control unit determines a type of a recording material, based on a first value of the ultrasonic wave through the recording material received by the reception unit in a first mode for outputting a first number of drive signals from the drive unit in a first period, and a second value of the ultrasonic wave through the recording material received by the reception unit in a second mode for outputting a second number of drive signals from the drive unit in a second period. The second number of drive signals is greater than the first number of drive signals.Type: ApplicationFiled: June 4, 2021Publication date: December 30, 2021Inventors: Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto
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Publication number: 20210318643Abstract: Provided is an image forming apparatus including: a toner storing portion that stores toner; a stirring member that stirs the toner by rotating inside the toner storing portion; a driving unit that includes a motor and is capable of rotating the stirring member in a first rotation direction and in a second rotation direction, which is an opposite direction to the first rotation direction, by a driving force of the motor; a control portion that controls the motor to perform a rotating operation to rotate the stirring member, and a detection unit that detects a rotation state of the motor. The control portion determines whether to end the rotating operation or not based on the rotation state detected by the detection unit.Type: ApplicationFiled: April 9, 2021Publication date: October 14, 2021Inventors: Mizuki Ishimoto, Masatoshi Itoh
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Publication number: 20210262926Abstract: A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.Type: ApplicationFiled: May 12, 2021Publication date: August 26, 2021Inventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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Patent number: 11035787Abstract: An image forming apparatus includes first and second light sources configured to emit light on a recording material, with the light from the second light source having a peak wavelength that is longer than the peak wavelength of the light from the first light source. The apparatus also includes a light receiving unit configured to receive the first light and the second light transmitted through the recording material. A control unit is configured to control an image forming condition on which the image is formed on the recording material based on the first light and the second light received by the light receiving unit. Additionally, a detection device includes first, second, and third light sources configured to emit first light on a sheet. The detection device further includes a light receiving unit configured to receive the first light and the second light transmitted through the sheet and receive the third light reflected on the sheet.Type: GrantFiled: May 11, 2020Date of Patent: June 15, 2021Assignee: Canon Kabushiki KaishaInventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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RECORDING MATERIAL DETERMINATION APPARATUS AND IMAGE FORMING APPARATUS THAT RECEIVE ULTRASONIC WAVES
Publication number: 20210124298Abstract: A recording material determination apparatus includes a transmission unit, a reception unit, and a determination unit. The transmission unit transmits an ultrasonic wave to a recording material. The reception unit vibrates when the reception unit receives the ultrasonic wave having been transmitted from the transmission unit and having passed through the recording material, and outputs a signal corresponding to a vibration state. The determination unit determines a basis weight of the recording material in accordance with the signal output from the reception unit. A resonance frequency of the reception unit differs from a resonance frequency of the transmission unit, and the reception unit is capable of receiving a sound wave in an ultrasonic range and a sound wave in an audible range.Type: ApplicationFiled: December 31, 2020Publication date: April 29, 2021Inventors: Junya Azami, Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto -
Recording material determination apparatus and image forming apparatus that receive ultrasonic waves
Patent number: 10915052Abstract: A recording material determination apparatus includes a transmission unit, a reception unit, and a determination unit. The transmission unit transmits an ultrasonic wave to a recording material. The reception unit vibrates when the reception unit receives the ultrasonic wave having been transmitted from the transmission unit and having passed through the recording material, and outputs a signal corresponding to a vibration state. The determination unit determines a basis weight of the recording material in accordance with the signal output from the reception unit. A resonance frequency of the reception unit differs from a resonance frequency of the transmission unit, and the reception unit is capable of receiving a sound wave in an ultrasonic range and a sound wave in an audible range.Type: GrantFiled: December 17, 2019Date of Patent: February 9, 2021Assignee: Canon Kabushiki KaishaInventors: Junya Azami, Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto -
Publication number: 20200319584Abstract: A first light guide guides first light in a first light guiding path. The first light is of light irradiated from the light source to a sheet. A first detection unit receives reflected light from the sheet and outputs an image signal indicating an image of a surface of the sheet. A second light guide guides second light in a second light guiding path different from the first light guiding path. The second light is of the light irradiated from the light source and is different from the first light. A second detection unit receives the second light and output a detection signal corresponding to a light amount of the second light. A control unit controls a light emission amount of the light source based on the detection signal.Type: ApplicationFiled: March 31, 2020Publication date: October 8, 2020Inventors: Masafumi Monde, Mizuki Ishimoto, Yu Miyajima, Norio Matsui
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Publication number: 20200271575Abstract: A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.Type: ApplicationFiled: May 11, 2020Publication date: August 27, 2020Inventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde
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RECORDING MATERIAL DETERMINATION APPARATUS AND IMAGE FORMING APPARATUS THAT RECEIVE ULTRASONIC WAVES
Publication number: 20200209794Abstract: A recording material determination apparatus includes a transmission unit, a reception unit, and a determination unit. The transmission unit transmits an ultrasonic wave to a recording material. The reception unit vibrates when the reception unit receives the ultrasonic wave having been transmitted from the transmission unit and having passed through the recording material, and outputs a signal corresponding to a vibration state. The determination unit determines a basis weight of the recording material in accordance with the signal output from the reception unit. A resonance frequency of the reception unit differs from a resonance frequency of the transmission unit, and the reception unit is capable of receiving a sound wave in an ultrasonic range and a sound wave in an audible range.Type: ApplicationFiled: December 17, 2019Publication date: July 2, 2020Inventors: Junya Azami, Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto -
Patent number: 10684218Abstract: A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.Type: GrantFiled: April 3, 2018Date of Patent: June 16, 2020Assignee: Canon Kabushiki KaishaInventors: Mizuki Ishimoto, Norio Matsui, Masafumi Monde