Patents by Inventor Masanori Ishikawa
Masanori Ishikawa 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: 20050275739Abstract: A camera is provided which includes an image capturing element; a memory for recording images obtained from the image capturing element; and a controller for changing the number of recorded pixels of the images stored in the memory based on information about a lens apparatus that can be operatively connected to the camera.Type: ApplicationFiled: June 3, 2005Publication date: December 15, 2005Inventors: Seiichi Kashiwaba, Tohru Kawai, Masanori Ishikawa, Mitsuru Shinohara, Shigeki Sato, Yuki Nagao
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Publication number: 20050276590Abstract: An optical apparatus is provided which uses image shake information generated by a shake correction unit to improve an image by reducing the amount of image shake.Type: ApplicationFiled: June 10, 2005Publication date: December 15, 2005Applicant: Canon Kabushiki KaishaInventors: Masanori Ishikawa, Jun Sugita, Mitsuru Shinohara, Yuki Nagao
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Publication number: 20050255954Abstract: An oil pump driving apparatus including a rotation shaft in driving connection with a torque converter, a drive sprocket rotatable about the rotation shaft and adapted to be connected with a driven sprocket disposed on the oil pump via the chain, a first sleeve disposed on a radial outside of the rotation shaft so as to be rotatable together with the torque converter, the first sleeve being engaged with the drive sprocket, a second sleeve fixedly disposed on a radial inside of the first sleeve, a first bearing supporting the first sleeve so as to be rotatable relative to the second sleeve, and a second bearing supporting the drive sprocket so as to be rotatable relative to the second sleeve.Type: ApplicationFiled: May 9, 2005Publication date: November 17, 2005Inventors: Masanori Ishikawa, Yuji Takahashi, Hiromu Soya
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Publication number: 20050232622Abstract: The present invention is a camera system, including an interchangeable lens including a photographing optical system with a focus lens and a camera where the interchangeable lens is detachably mounted to the camera, the camera system configured to include: a focus detection unit for detecting a focus state of the photographing optical system to output a focus signal corresponding to a defocus amount; a controller for outputting a drive signal for driving the focus lens on the basis of the focus signal; a drive mechanism for driving the focus lens on the basis of the drive signal; and a memory for storing information of a drive time pertaining to the drive signal.Type: ApplicationFiled: April 11, 2005Publication date: October 20, 2005Applicant: Canon Kabushiki KaishaInventors: Tohru Kawai, Masanori Ishikawa, Jun Sugita, Mitsuru Shinohara, Isamu Go, Yuki Nagao
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Publication number: 20050168581Abstract: A camera system has a recording portion for recording an object image, a display portion for displaying an object image, a first blur correction portion for correcting blur of the object image displayed on the display portion by signal processing, and a second blur correction portion for optically correcting blur of the object image recorded by the recording portion. The camera system includes a controller for switching between a first blur correction mode in which the first blur correction portion is operated, a second blur correction mode in which the second blur correction portion is operated and a third blur correction mode in which both the first blur correction portion and the second blur correction portion are operated.Type: ApplicationFiled: January 10, 2005Publication date: August 4, 2005Inventors: Mitsuru Shinohara, Tohru Kawai, Masanori Ishikawa, Seiichi Kashiwaba, Shigeki Sato, Yuki Nagao
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Publication number: 20050168622Abstract: Provided are a lens apparatus and an optical apparatus having the same, the lens apparatus including a lens holding member holding a lens, a supporting member for supporting the lens holding member movably in the direction of the optical axis of the lens, a first drive mechanism for moving the supporting member in the direction of the optical axis, and a second drive mechanism for moving the lens holding member in the direction of the optical axis, wherein a focusing lens can be moved to an in-focus position within a short time and highly accurately by an AF system.Type: ApplicationFiled: January 26, 2005Publication date: August 4, 2005Inventors: Tohru Kawai, Masanori Ishikawa, Seiichi Kashiwaba, Mitsuru Shinohara, Shigeki Sato, Yuki Nagao
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Patent number: 6892028Abstract: A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. The camera system comprises a focus detection unit detecting a focusing state of the image-taking optical system, a driving unit driving the focus lens unit, and a controller controlling the driving speed of the focus lens unit and controls the focus detection unit to perform a focus detection operation at least once while the focus lens unit is moved. The controller sets the driving speed of the focus lens unit at the time of at least a final focus detection operation while it is moved toward an in-focus position, to a speed decelerated from the driving speed before the final focus detection operation.Type: GrantFiled: September 10, 2004Date of Patent: May 10, 2005Assignee: Canon Kabushiki KaishaInventors: Seiichi Kashiwaba, Toru Kawai, Masanori Ishikawa, Shigeki Sato
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Publication number: 20050058575Abstract: A simple and convenient analyzing apparatus is provided which easily, conveniently, and efficiently collects a material in the state of fine particles adhered to a target object, extracts the object to be analyzed, and analyzes the extracted object. An apparatus for detecting fine particles in a gas which sucks the gas under measurement from the target object by using a suction pump, extracts the fine particles contained in the gas under measurement, and performs measurement by using a spectrometer is embodied such that an inertial impactor for collecting the fine particles having diameters not less than a specified particle diameter is disposed upstream of the spectrometer, the fine particles are collected in the fine particle collector of the inertial impactor, the collector containing the collected fine particles is heated such that the collected fine particles are vaporized into a gas, and the vaporized fluid to be examined is supplied to the spectrometer to be measured thereby.Type: ApplicationFiled: February 6, 2004Publication date: March 17, 2005Applicant: Hitachi, Ltd.Inventors: Masanori Ishikawa, Naoya Sasaki, Katsumi Nagumo, Shigenori Morishima, Hiroshi Naka
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Publication number: 20050031332Abstract: A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. The camera system comprises a focus detection unit detecting a focusing state of the image-taking optical system, a driving unit driving the focus lens unit, and a controller controlling the driving speed of the focus lens unit and controls the focus detection unit to perform a focus detection operation at least once while the focus lens unit is moved. The controller sets the driving speed of the focus lens unit at the time of at least a final focus detection operation while it is moved toward an in-focus position, to a speed decelerated from the driving speed before the final focus detection operation.Type: ApplicationFiled: September 10, 2004Publication date: February 10, 2005Inventors: Seiichi Kashiwaba, Toru Kawai, Masanori Ishikawa, Shigeki Sato
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Patent number: 6847785Abstract: A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. The camera system comprises a focus detection unit detecting a focusing state of the image-taking optical system, a driving unit driving the focus lens unit, and a controller controlling the driving speed of the focus lens unit and controls the focus detection unit to perform a focus detection operation at least once while the focus lens unit is moved. The controller sets the driving speed of the focus lens unit at the time of at least a final focus detection operation while it is moved toward an in-focus position, to a speed decelerated from the driving speed before the final focus detection operation.Type: GrantFiled: September 18, 2003Date of Patent: January 25, 2005Assignee: Canon Kabushiki KaishaInventors: Seiichi Kashiwaba, Toru Kawai, Masanori Ishikawa, Shigeki Sato
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Patent number: 6789446Abstract: A torque converter is provided which comprises a converter cover for connection to a power source, a pump impeller attached to the converter cover, a turbine for connection to a transmission input shaft, a stator interposed between the pump impeller and the turbine, and a ring gear mounted on the converter cover and adapted to increase moment of inertia of the converter cover.Type: GrantFiled: September 23, 2002Date of Patent: September 14, 2004Assignee: Jatco LTDInventor: Masanori Ishikawa
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Patent number: 6776581Abstract: A method of connecting a starter ring gear connected with a converter cover, and a torque converter including a starter ring gear connected with a converter cover by the method. The method includes setting the starter ring gear at a corner portion of the converter cover in alignment with each other, and producing a plastic flow of metal at the corner portion thereof, the plastic flow of metal forming an engaging member disposed on an outer circumferential surface of a cylindrical wall of the converter cover and engaged with an engaging member disposed on an inner circumferential surface of the starter ring gear, to thereby connect the starter ring gear with the converter cover. The starter ring gear and the converter cover are rotatable about a rotation axis. The corner portion of the converter cover is formed between the cylindrical wall and a disk wall connected therewith.Type: GrantFiled: September 23, 2002Date of Patent: August 17, 2004Assignee: Jatco LTDInventor: Masanori Ishikawa
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Publication number: 20040057714Abstract: A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. The camera system comprises a focus detection unit detecting a focusing state of the image-taking optical system, a driving unit driving the focus lens unit, and a controller controlling the driving speed of the focus lens unit and controls the focus detection unit to perform a focus detection operation at least once while the focus lens unit is moved. The controller sets the driving speed of the focus lens unit at the time of at least a final focus detection operation while it is moved toward an in-focus position, to a speed decelerated from the driving speed before the final focus detection operation.Type: ApplicationFiled: September 18, 2003Publication date: March 25, 2004Inventors: Seiichi Kashiwaba, Toru Kawai, Masanori Ishikawa, Shigeki Sato
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Publication number: 20040057712Abstract: A camera system which is capable of performing highly accurate focusing in a short time by using two kinds of AF methods, is disclosed. The camera system calculates the target driving amount of the focusing lens based on the result of detection by a first focus detection unit, and performs a first driving control to drive the focusing lens toward a position corresponding to the target driving amount and a second driving control to drive the focusing lens based on the result of detection by the second focus detection unit. When the remaining driving amount to the target driving amount of the focusing lens by the first driving control becomes a predetermined amount, the camera system switches from the first driving control to the second driving control without stopping the focusing lens.Type: ApplicationFiled: September 16, 2003Publication date: March 25, 2004Inventors: Shigeki Sato, Toru Kawai, Masanori Ishikawa, Seiichi Kashiwaba
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Publication number: 20040057713Abstract: A camera which optimally corrects focus variations caused by stopping down of the stop, is disclosed. The camera comprises a focus detection unit and a controller which controls the driving of the focus lens. The controller drives the focus lens based on the detection result from the focus detection unit when the stop is in a first state. Then, the controller sets the stop in a second state and drives the focus lens based on the detection result from the focus detection unit in the second state.Type: ApplicationFiled: September 16, 2003Publication date: March 25, 2004Inventors: Masanori Ishikawa, Toru Kawai, Seiichi Kashiwaba, Shigeki Sato
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Patent number: 6603929Abstract: The present invention discloses a camera system comprising: a first focus detection unit, which detects the focusing condition of an image-taking optical system; a second focus detection unit, which detects the focusing condition of the image-taking optical system at a higher precision than the first focus detection unit; and a control circuit, which controls a stepping motor for driving a focus lens. The control circuit performs closed loop control for driving the stepping motor based on the output of a rotation detector, which detects the rotation phase of the stepping motor, when controlling the stepping motor using the information based on the output of the first focus detection unit, and performs open control for driving the stepping motor a predetermined number of steps at a time, when controlling the stepping motor using the information based on the output of the second focus detection unit. The autofocus process is thereby made high in speed and high in precision at the same time.Type: GrantFiled: June 14, 2002Date of Patent: August 5, 2003Assignee: Canon Kabushiki KaishaInventors: Masanori Ishikawa, Toru Kawai, Ryuji Suzuki, Seiichi Kashiwaba, Shigeki Sato
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Publication number: 20030061808Abstract: A method of connecting a starter ring gear connected with a converter cover, and a torque converter including a starter ring gear connected with a converter cover by the method. The method includes setting the starter ring gear at a corner portion of the converter cover in alignment with each other, and producing a plastic flow of metal at the corner portion thereof, the plastic flow of metal forming an engaging member disposed on an outer circumferential surface of a cylindrical wall of the converter cover and engaged with an engaging member disposed on an inner circumferential surface of the starter ring gear, to thereby connect the starter ring gear with the converter cover. The starter ring gear and the converter cover are rotatable about a rotation axis. The corner portion of the converter cover is formed between the cylindrical wall and a disk wall connected therewith.Type: ApplicationFiled: September 23, 2002Publication date: April 3, 2003Applicant: JATCO Ltd.Inventor: Masanori Ishikawa
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Publication number: 20030061902Abstract: A torque converter is provided which comprises a converter cover for connection to a power source, a pump impeller attached to the converter cover, a turbine for connection to a transmission input shaft, a stator interposed between the pump impeller and the turbine, and a ring gear mounted on the converter cover and adapted to increase moment of inertia of the converter cover.Type: ApplicationFiled: September 23, 2002Publication date: April 3, 2003Applicant: JATCO LtdInventor: Masanori Ishikawa
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Patent number: 6529337Abstract: An image blur correction apparatus includes a correction optical system for correcting an image blur, an actuator for driving the correction optical system, a plurality of resilient members provided on an outer periphery of the correction optical system, the resilient members being provided substantially angularly equally divided into at least three locations about an optical axis of the correction optical system, and a guide member for movably guiding the correction optical system along a direction orthogonal to the optical axis of the correction optical system. The plurality of resilient members and the guide member are disposed within substantially the same plane orthogonal to the optical axis. In a case in which the actuator does not perform the drive of the correction optical system, the plurality of resilient members hold the correction optical system substantially at a center of the optical axis.Type: GrantFiled: March 9, 2001Date of Patent: March 4, 2003Assignee: Canon Kabushiki KaishaInventors: Atsushi Koyama, Toru Kawai, Ryuji Suzuki, Masanori Ishikawa, Shigeki Sato
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Publication number: 20030012568Abstract: The present invention discloses a camera system comprising: a first focus detection unit, which detects the focusing condition of an image-taking optical system; a second focus detection unit, which detects the focusing condition of the image-taking optical system at a higher precision than the first focus detection unit; and a control circuit, which controls a stepping motor for driving a focus lens. The control circuit performs closed loop control for driving the stepping motor based on the output of a rotation detector, which detects the rotation phase of the stepping motor, when controlling the stepping motor using the information based on the output of the first focus detection unit, and performs open control for driving the stepping motor a predetermined number of steps at a time, when controlling the stepping motor using the information based on the output of the second focus detection unit.Type: ApplicationFiled: June 14, 2002Publication date: January 16, 2003Inventors: Masanori Ishikawa, Toru Kawai, Ryuji Suzuki, Seiichi Kashiwaba, Shigeki Sato