Patents by Inventor Satoru Itoh
Satoru Itoh 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: 11829075Abstract: A processing apparatus includes a driver configured to drive a controlled object, and a controller configured to control the driver by generating a command value to the driver based on a control error. The controller includes a first compensator configured to generate a first command value based on the control error, a second compensator configured to generate a second command value based on the control error, and an adder configured to obtain the command value by adding the first command value and the second command value. The second compensator includes a neural network for which a parameter value is decided by learning, and input parameters input to the neural network include at least one of a driving condition of the driver and an environment condition in a periphery of the controlled object in addition to the control error.Type: GrantFiled: June 23, 2022Date of Patent: November 28, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Satoru Itoh
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Publication number: 20230106601Abstract: A management apparatus includes a learning device. The learning device is configured to, in a case where a reward obtained from a control result of a controlled object by a controller configured to control the controlled object using a neural network, for which a parameter value is decided by reinforcement learning, does not satisfy a predetermined criterion, redecide the parameter value by reinforcement learning.Type: ApplicationFiled: December 1, 2022Publication date: April 6, 2023Inventor: Satoru ITOH
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Publication number: 20120116645Abstract: In order to calculate an estimation of the amount of deposited particulates in a first filter (61) or a second filter (62), a first estimation calculating section (100) for outputting first estimation data (XA) based on pressure differential across the filter and a second estimation calculating section (110) for outputting second estimation data (XB) based on engine operating state are provided, the data between the first estimation data (XA) and the second estimation data (XB) that is the more reliable estimation data in light of engine (2) rotation is selected and whether or not filter regeneration should be conducted is decided. In addition, the difference between the first and second estimation data (XA, XB) is considered and when the difference is larger than a prescribed value, then even if the engine (2) rpm is high, selection of the first estimation data XA, which is apt to be an estimated value of low reliability owing to cracking of the deposited particulates, is avoided.Type: ApplicationFiled: August 13, 2002Publication date: May 10, 2012Inventors: Toshihiro Hamahata, Satoru Itoh
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Patent number: 8081203Abstract: A light-amount detecting device includes: a light source which emits a light beam; a branching optical element which divides the light beam emitted from the light source into a first light beam traveling in a predetermined direction and a second light beam traveling in a direction different to the predetermined direction; a light-condensing element which condenses the second light beam; a light-receiving element having a light-receiving surface which receives the second light beam condensed by the light-condensing element; and a detector which detects a light-amount of the second light beam received by the light-receiving element, and at least one of a direction of reflected light of the second light beam reflected from the light-receiving surface of the light-receiving element and spread of the reflected light of the second light beam reflected from the light-receiving surface of the light-receiving element is adjusted to control a light-amount of the reflected light of the second light beam returning to theType: GrantFiled: February 28, 2008Date of Patent: December 20, 2011Assignee: Ricoh Company, Ltd.Inventors: Kensuke Masuda, Tomohiro Nakajima, Satoru Itoh, Daisuke Ichii, Masahiro Soeda, Yoshinori Hayashi
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Patent number: 7903134Abstract: Each light detecting sensor, which is installed corresponding to each photoconductor drum, and to which the plurality of light beams passing through the scanning optical system are incident while moving in a main scanning direction includes a light-receiving device having a first light-receiving unit and a second light-receiving unit, which have different intervals from each other in the main scanning direction depending on a position of a sub-scanning direction, all the sizes of the first and the second light-receiving units being sizes covering an overall virtual area in a quadrangular shape surrounding a plurality of light spots in the light-receiving surface.Type: GrantFiled: February 27, 2008Date of Patent: March 8, 2011Assignee: Ricoh Company, Ltd.Inventors: Akihisa Itabashi, Satoru Itoh, Mitsuo Suzuki
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Patent number: 7777774Abstract: An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.Type: GrantFiled: May 23, 2006Date of Patent: August 17, 2010Assignee: Ricoh Company, Ltd.Inventors: Mitsuo Suzuki, Naoki Miyatake, Taku Amada, Seizo Suzuki, Kazuyuki Shimada, Satoru Itoh
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Patent number: 7738080Abstract: A stage apparatus includes a base, a stage that can move on a surface of the base, a first imparting unit arranged inside the base, which has a mass body and an actuator that is fixed to the base and moves the mass body in a direction vertical to the surface, the first imparting unit being configured to apply a force to the base by moving the mass body, and a controlling unit that controls the movement of the mass body in the vertical direction in the first imparting unit in accordance with movement of the stage, so that a force, which is generated in the base by the movement of the stage in a rotational direction around an axis parallel to the surface, is reduced.Type: GrantFiled: March 19, 2007Date of Patent: June 15, 2010Assignee: Canon Kabushiki KaishaInventor: Satoru Itoh
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Patent number: 7706040Abstract: An optical scanning apparatus scans a surface to be scanned in a main scanning direction by simultaneously using a plurality of optical spots formed of a plurality of optical beams emitted from an illuminant, comprising: a light path deflecting part deflecting a light path of at least one of the optical beams, wherein the light path deflecting part is provided in light paths of the optical beams wherein the light path deflecting part may use a liquid crystal deflecting element formed of a liquid crystal element being controllable by an electronic signal to deflect the light path of the one of the optical beams.Type: GrantFiled: January 9, 2008Date of Patent: April 27, 2010Assignee: Ricoh Company, Ltd.Inventors: Taku Amada, Seizo Suzuki, Satoru Itoh, Tomohiro Nakajima
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Publication number: 20080212999Abstract: A light-amount detecting device includes: a light source which emits a light beam; a branching optical element which divides the light beam emitted from the light source into a first light beam traveling in a predetermined direction and a second light beam traveling in a direction different to the predetermined direction; a light-condensing element which condenses the second light beam; a light-receiving element having a light-receiving surface which receives the second light beam condensed by the light-condensing element; and a detector which detects a light-amount of the second light beam received by the light-receiving element, and at least one of a direction of reflected light of the second light beam reflected from the light-receiving surface of the light-receiving element and spread of the reflected light of the second light beam reflected from the light-receiving surface of the light-receiving element is adjusted to control a light-amount of the reflected light of the second light beam returning to theType: ApplicationFiled: February 28, 2008Publication date: September 4, 2008Inventors: Kensuke Masuda, Tomohiro Nakajima, Satoru Itoh, Daisuke Ichii, Masahiro Soeda, Yoshinori Hayashi
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Publication number: 20080204846Abstract: Each light detecting sensor, which is installed corresponding to each photoconductor drum, and to which the plurality of light beams passing through the scanning optical system are incident while moving in a main scanning direction includes a light-receiving device having a first light-receiving unit and a second light-receiving unit, which have different intervals from each other in the main scanning direction depending on a position of a sub-scanning direction, all the sizes of the first and the second light-receiving units being sizes covering an overall virtual area in a quadrangular shape surrounding a plurality of light spots in the light-receiving surface.Type: ApplicationFiled: February 27, 2008Publication date: August 28, 2008Inventors: Akihisa ITABASHI, Satoru Itoh, Mitsuo Suzuki
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Publication number: 20080117487Abstract: An optical scanning apparatus scans a surface to be scanned in a main scanning direction by simultaneously using a plurality of optical spots formed of a plurality of optical beams emitted from an illuminant, comprising: a light path deflecting part deflecting a light path of at least one of the optical beams, wherein the light path deflecting part is provided in light paths of the optical beams wherein the light path deflecting part may use a liquid crystal deflecting element formed of a liquid crystal element being controllable by an electronic signal to deflect the light path of the one of the optical beams.Type: ApplicationFiled: January 9, 2008Publication date: May 22, 2008Inventors: Taku AMADA, Seizo Suzuki, Satoru Itoh, Tomohiro Nakajima
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Patent number: 7333254Abstract: An optical scanning apparatus scans a surface to be scanned in a main scanning direction by simultaneously using a plurality of optical spots formed of a plurality of optical beams emitted from an illuminant, comprising: a light path deflecting part deflecting a light path of at least one of the optical beams, wherein the light path deflecting part is provided in light paths of the optical beams wherein the light path deflecting part may use a liquid crystal deflecting element formed of a liquid crystal element being controllable by an electronic signal to deflect the light path of the one of the optical beams.Type: GrantFiled: March 13, 2003Date of Patent: February 19, 2008Assignee: Ricoh Company, Ltd.Inventors: Taku Amada, Seizo Suzuki, Satoru Itoh, Tomohiro Nakajima
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Publication number: 20070229794Abstract: A stage apparatus includes a base, a stage that can move along the surface of the base that serves as a movement plane, and an imparting mechanism that gives an inertia force to the base using a mass body that moves in a direction vertical to the movement plane. The movement of the mass body in the imparting mechanism in the vertical direction is controlled so that a force in the rotation direction around an axis parallel to the movement plane that is generated in the base when the stage moves along the movement plane is reduced. Thus, a drive reaction force that is generated when the stage is driven can be effectively cancelled out and the effect of the drive reaction force can be reduced.Type: ApplicationFiled: March 19, 2007Publication date: October 4, 2007Applicant: CANON KABUSHIKI KAISHAInventor: Satoru ITOH
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Patent number: 7125877Abstract: This invention provides compounds which are represented by a general formula [I] [in which X stands for hydrogen or halogen; B stands for halogen, cyano or optionally fluorine-substituted lower alkyl; D stands for a 3–10 membered aliphatic nitrogen-containing heterocyclic group; R3, R4 and R5 may be same or different, and each stands for hydrogen, lower alkyl optionally having substituent group(s) and the like; and a is 0 or 1]. These compounds exhibit high affinity to nociceptin receptors and whereby inhibit actions of nociceptin, and are useful as an analgesic, antiobestic, agent for ameliorating brain function, treating agents for Alzheimer's disease and dementia, and therapeutic agents for schizophrenia, neurodegenerative diseases, depression, diabetes insipidus, polyuria, hypotension and the like.Type: GrantFiled: May 14, 2003Date of Patent: October 24, 2006Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Kensuke Kobayashi, Hirobumi Takahashi, Hiroshi Kawamoto, Tetsuya Kato, Satoru Itoh, Takashi Yoshizumi, Osamu Okamoto
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Publication number: 20060209166Abstract: An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.Type: ApplicationFiled: May 23, 2006Publication date: September 21, 2006Inventors: Mitsuo Suzuki, Naoki Miyatake, Taku Amada, Seizo Suzuki, Kazuyuki Shimada, Satoru Itoh
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Patent number: 7072127Abstract: An optical scanning lens is used in a scanning and image forming optical system which gathers a light flux deflected by a light deflector in the vicinity of a surface to be scanned. The lens is formed by plastic molding of polyolefin resin, and the following condition is satisfied: 0<|?n(x)?min[?n(x)]|<34×10?5, where ?n(x) denotes a refractive-index distribution existing inside the lens, in a range which the light flux passes through, in the lens, and min[?n(x)] denotes the minimum value of the ?n(x).Type: GrantFiled: February 7, 2005Date of Patent: July 4, 2006Assignee: Ricoh Company, Ltd.Inventors: Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi, Magane Aoki, Kenichi Takanashi, Takao Yamaguchi, Taira Kouchiwa, Koji Hirakura, Seizo Suzuki
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Patent number: 7050082Abstract: An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.Type: GrantFiled: January 22, 2003Date of Patent: May 23, 2006Assignee: Ricoh Company, Ltd.Inventors: Mitsuo Suzuki, Naoki Miyatake, Taku Amada, Seizo Suzuki, Kazuyuki Shimada, Satoru Itoh
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Patent number: 7045773Abstract: An optical scanning apparatus is provided, in which the optical scanning apparatus includes: a light source emitting an optical beam; an optical deflection unit deflecting the optical beam emitted from the light source; a scanning optical arrangement scanning a scanned surface by the optical beam in a main scanning direction; and an optical beam detection unit detecting the optical beam moving in the main scanning direction. The optical beam detection unit includes a first photodetector and a second photodetector, and the first photodetector including a first part and a second part that are electrically connected, wherein a first gap is formed between an edge of the first part and a first edge of the second photodetector, a second gap is formed between an edge of the second part and a second edge of the second photodetector, and the first gap and the second gap are not parallel to each other.Type: GrantFiled: July 16, 2004Date of Patent: May 16, 2006Assignee: Ricoh Company, Ltd.Inventors: Mitsuo Suzuki, Seizo Suzuki, Satoru Itoh
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Patent number: 7045363Abstract: A nucleic acid-bound polypeptide produced by binding a nucleic acid to a polypeptide, a method of producing the nucleic acid-bound polypeptide, and applications of the nucleic acid-bound polypeptide, including immunoassays for an antigen or antibody, such as an agglutination immunoassay are provided.Type: GrantFiled: May 7, 1999Date of Patent: May 16, 2006Assignee: Fujirebio Inc.Inventors: Fuminori Takemura, Eiichi Ueno, Satoru Itoh
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Patent number: RE42865Abstract: An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.Type: GrantFiled: May 25, 2007Date of Patent: October 25, 2011Assignee: Ricoh Company, Ltd.Inventors: Mitsuo Suzuki, Naoki Miyatake, Taku Amada, Seizo Suzuki, Kazuyuki Shimada, Satoru Itoh