Patents by Inventor Kaoru Noguchi
Kaoru Noguchi 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: 8254004Abstract: An oscillating device includes an oscillator, an elastic supporting member for movably supporting the oscillator, a first supporting frame for supporting the elastic supporting member, and a second supporting frame extending along the elastic supporting member with a spacing maintained therebetween, the second supporting member extending from the first supporting frame, wherein the second supporting frame is provided in a cantilever shape relative to the first supporting frame.Type: GrantFiled: February 7, 2008Date of Patent: August 28, 2012Assignee: Canon Kabushiki KaishaInventors: Takashi Ushijima, Kaoru Noguchi, Takahisa Kato, Tomoyuki Kawano
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Patent number: 8244146Abstract: There is provided an image forming apparatus and method capable of reducing a measurement error in a measurement result of the surface potential of an electrostatic latent image formed on the surface of an image bearing member. The measurement error occurs under the influence of an electric field generated from a pre-exposed area. Consequently, miniaturization of an image forming apparatus and consistent print quality can be achieved. The image forming apparatus includes an image forming control section for determining an error correction value corresponding to the charge state of a latent image on the basis of relationships between charge states of the latent image and error correction values which have been prepared in advance, computing an error corrected potential measurement value using the error correction value and a potential measurement value, and controlling the image forming apparatus on the basis of the error corrected potential measurement value.Type: GrantFiled: June 23, 2011Date of Patent: August 14, 2012Assignee: Canon Kabushiki KaishaInventors: Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Kazuhiko Kato, Toshiyuki Ogawa
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Publication number: 20110255890Abstract: There is provided an image forming apparatus and method capable of reducing a measurement error in a measurement result of the surface potential of an electrostatic latent image formed on the surface of an image bearing member. The measurement error occurs under the influence of an electric field generated from a pre-exposed area. Consequently, miniaturization of an image forming apparatus and consistent print quality can be achieved. The image forming apparatus includes an image forming control section for determining an error correction value corresponding to the charge state of a latent image on the basis of relationships between charge states of the latent image and error correction values which have been prepared in advance, computing an error corrected potential measurement value using the error correction value and a potential measurement value, and controlling the image forming apparatus on the basis of the error corrected potential measurement value.Type: ApplicationFiled: June 23, 2011Publication date: October 20, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Kazuhiko Kato, Toshiyuki Ogawa
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Patent number: 7990159Abstract: A potential measurement apparatus for measuring a surface potential of an object of measurement detects a change in electric charge induced at a detection electrode due to electrostatic induction by changing a distance between the detection electrode and the object of measurement in accordance with a predetermined period, using a neutral distance as reference, as a signal representing a change in electric current.Type: GrantFiled: January 28, 2008Date of Patent: August 2, 2011Assignee: Canon Kabushiki KaishaInventors: Kazuhiko Kato, Toshiyuki Ogawa, Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Atsushi Kandori, Futoshi Hirose
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Patent number: 7710129Abstract: A potential measurement apparatus is provided which can suitably maintain the oscillation state of an oscillator including a detection electrode and stably measure the potential of a measurement object. The potential measurement apparatus includes a bearing part, an elastic supporting part supported by the bearing part, an oscillator movably supported by the elastic supporting part, detection electrodes installed in the oscillator, a drive mechanism driving the oscillator and a signal detection unit. The signal detection unit is connected to the detection electrodes to detect electrical signals appearing in the detected electrodes. A stress detecting element for generating an electric signal according to the stress of the elastic suspension part 142 is provided.Type: GrantFiled: November 28, 2007Date of Patent: May 4, 2010Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Ogawa, Yoshitaka Zaitsu, Takashi Ushijima, Atsushi Kandori, Kaoru Noguchi, Kazuhiko Kato, Futoshi Hirose
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Publication number: 20100019779Abstract: A potential measurement apparatus for measuring a surface potential of an object of measurement detects a change in electric charge induced at a detection electrode due to electrostatic induction by changing a distance between the detection electrode and the object of measurement in accordance with a predetermined period, using a neutral distance as reference, as a signal representing a change in electric current.Type: ApplicationFiled: January 28, 2008Publication date: January 28, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kazuhiko Kato, Toshiyuki Ogawa, Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Atsushi Kandori, Futoshi Hirose
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Publication number: 20100002277Abstract: An oscillating device includes an oscillator, an elastic supporting member for movably supporting the oscillator, a first supporting frame for supporting the elastic supporting member, and a second supporting frame extending along the elastic supporting member with a spacing maintained therebetween, the second supporting member extending from the first supporting frame, wherein the second supporting frame is provided in a cantilever shape relative to the first supporting frame.Type: ApplicationFiled: February 7, 2008Publication date: January 7, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Ushijima, Kaoru Noguchi, Takahisa Kato, Tomoyuki Kawano
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Patent number: 7639020Abstract: A potential sensor is provided in which the adhesion of toner particles to the potential sensor is reduced or prevented from occurring, reducing or preventing the occurrence of a situation that accurate detection cannot be performed. The potential sensor has a movable member, detecting electrodes formed on the movable member, a support which movably supports the movable member, a driving mechanism which drives the movable member, and a stationary member which supports the support. Between the movable member and the stationary member, a first gap is so formed as to make the movable member 101 movable. The first gap has a part that is not larger in width than the maximum size of toner particles when the movable member is not elastically deformed and is at a neutral position.Type: GrantFiled: October 25, 2007Date of Patent: December 29, 2009Assignee: Canon Kabushiki KaishaInventors: Takashi Ushijima, Kaoru Noguchi, Atsushi Kandori, Yoshitaka Zaitsu, Kazuhiko Kato, Toshiyuki Ogawa, Futoshi Hirose
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Publication number: 20090161189Abstract: A method of manufacturing a structure that includes a mask forming step for forming, on a monocrystal silicon substrate, a base etching mask corresponding to a target shape and a correction etching mask having a joint connecting to the base etching mask, and a target shape forming step for forming the target shape by anisotropically etching the silicon substrate, wherein, in the mask forming step, a lowered-strength portion where a mechanical strength is locally decreased is formed at least in a portion of the joint of the correction etching mask.Type: ApplicationFiled: December 12, 2008Publication date: June 25, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Kaoru Noguchi, Yoshio Hotta, Kazutoshi Torashima, Yutaka Setomoto
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Publication number: 20090039715Abstract: An oscillator device includes an oscillator supported for oscillatory motion about an oscillation central axis, a magnetic member provided on the oscillator, and a magnetic-field generating member disposed opposed to the oscillator, wherein the magnetic member is provided at a side portion sandwiched between a top surface and a bottom surface of the oscillator.Type: ApplicationFiled: August 6, 2008Publication date: February 12, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Kaoru Noguchi, Koichi Hara
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Publication number: 20080284445Abstract: A potential measurement apparatus is provided which can suitably maintain the oscillation state of an oscillator including a detection electrode and stably measure the potential of a measurement object. The potential measurement apparatus includes a bearing part, an elastic supporting part supported by the bearing part, an oscillator movably supported by the elastic supporting part, detection electrodes installed in the oscillator, a drive mechanism driving the oscillator and a signal detection unit. The signal detection unit is connected to the detection electrodes to detect electrical signals appearing in the detected electrodes. A stress detecting element for generating an electric signal according to the stress of the elastic suspension part 142 is provided.Type: ApplicationFiled: November 28, 2007Publication date: November 20, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Toshiyuki Ogawa, Yoshitaka Zaitsu, Takashi Ushijima, Atsushi Kandori, Kaoru Noguchi, Kazuhiko Kato, Futoshi Hirose
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Publication number: 20080116897Abstract: A potential sensor is provided in which the adhesion of toner particles to the potential sensor is reduced or prevented from occurring, reducing or preventing the occurrence of a situation that accurate detection cannot be performed. The potential sensor has a movable member, detecting electrodes formed on the movable member, a support which movably supports the movable member, a driving mechanism which drives the movable member, and a stationary member which supports the support. Between the movable member and the stationary member, a first gap is so formed as to make the movable member 101 movable. The first gap has a part that is not larger in width than the maximum size of toner particles when the movable member is not elastically deformed and is at a neutral position.Type: ApplicationFiled: October 25, 2007Publication date: May 22, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Ushijima, Kaoru Noguchi, Atsushi Kandori, Yoshitaka Zaitsu, Kazuhiko Kato, Toshiyuki Ogawa, Futoshi Hirose
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Publication number: 20080112717Abstract: There is provided an image forming apparatus and method capable of reducing a measurement error in a measurement result of the surface potential of an electrostatic latent image formed on the surface of an image bearing member. The measurement error occurs under the influence of an electric field generated from a pre-exposed area. Consequently, miniaturization of an image forming apparatus and consistent print quality can be achieved. The image forming apparatus includes an image forming control section for determining an error correction value corresponding to the charge state of a latent image on the basis of relationships between charge states of the latent image and error correction values which have been prepared in advance, computing an error corrected potential measurement value using the error correction value and a potential measurement value, and controlling the image forming apparatus on the basis of the error corrected potential measurement value.Type: ApplicationFiled: October 24, 2007Publication date: May 15, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Kazuhiko Kato, Toshiyuki Ogawa
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Patent number: 7372278Abstract: An electric potential measuring apparatus includes a detecting electrode, a modulator for changing an electrostatic capacitance between a measurement object and the detecting electrode by mechanical vibration, a charge detector for detecting the amount of charges electrostatically induced in the detecting electrode by the modulator, and a vibration generating-detecting unit for selectively performing either a vibration generating function of exciting the mechanical vibration, or a detecting function of detecting the condition of the mechanical vibration.Type: GrantFiled: August 9, 2006Date of Patent: May 13, 2008Assignee: Canon Kabushiki KaishaInventors: Atsushi Kandori, Yoshikatsu Ichimura, Takashi Ushijima, Yoshitaka Zaitsu, Kaoru Noguchi
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Publication number: 20070065169Abstract: An electric potential measuring apparatus includes a detecting electrode, a modulator for changing an electrostatic capacitance between a measurement object and the detecting electrode by mechanical vibration, a charge detector for detecting the amount of charges electrostatically induced in the detecting electrode by the modulator, and a vibration generating-detecting unit for selectively performing either a vibration generating function of exciting the mechanical vibration, or a detecting function of detecting the condition of the mechanical vibration.Type: ApplicationFiled: August 9, 2006Publication date: March 22, 2007Applicant: Canon Kabushiki KaishaInventors: Atsushi Kandori, Yoshikatsu Ichimura, Takashi Ushijima, Yoshitaka Zaitsu, Kaoru Noguchi
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Patent number: 6698960Abstract: A push-button writing implement includes a barrel having at least a transparent or semitransparent part, a refill axially slidably contained in the barrel, and provided with a writing tip, and a refill-operating mechanism including a push button, and a return spring and designed so as to be operated by the push button to project the writing tip of the refill from a tip of the barrel and to retract the same into the barrel. A front stopper ring having the shape of an O ring is put on the refill, a fancy member is axially slidably put on part of the refill extending backward beyond the front stopper ring, and the fancy member is moved up and down along the refill when the refill is moved by resilience of the return spring by operating the refill-operating mechanism.Type: GrantFiled: September 6, 2002Date of Patent: March 2, 2004Assignee: Kotobuki & Co., Ltd.Inventor: Kaoru Noguchi
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Publication number: 20030210945Abstract: A push-button writing implement includes a barrel having at least a transparent or semitransparent part, a refill axially slidably contained in the barrel, and provided with a writing tip, and a refill-operating mechanism including a push button, and a return spring and designed so as to be operated by the push button to project the writing tip of the refill from a tip of the barrel and to retract the same into the barrel. A front stopper ring having the shape of an O ring is put on the refill, a fancy member is axially slidably put on part of the refill extending backward beyond the front stopper ring, and the fancy member is moved up and down along the refill when the refill is moved by resilience of the return spring by operating the refill-operating mechanism.Type: ApplicationFiled: September 6, 2002Publication date: November 13, 2003Inventor: Kaoru Noguchi