Patents by Inventor Toru Nagata
Toru Nagata 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: 5826115Abstract: A camera has an image stabilizing function which is provided with vibration correcting means for driving an imaging system in at least two non-parallel directions and correcting the vibration of an image, and control means for selecting one of the directions in which the imaging system is driven by the vibration correcting means and controlling the vibration correcting means so that only the action of the vibration correcting means in that direction is singly stopped or that the imaging system is driven at a desired speed only in that direction.Type: GrantFiled: August 5, 1997Date of Patent: October 20, 1998Assignee: Canon Kabushiki KaishaInventors: Koichi Washisu, Toru Nagata, Hiroshi Sumio, Masao Shikaumi
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Patent number: 5671455Abstract: A camera uses a film having a magnetic record member for each frame on film. When the film is loaded in the camera, the information recorded in the record member of each frame is detected. It is judged whether each frame is exposed or unexposed. Even if some frames on the leader side and on the trailer side of film were already exposed, the camera can perform accurate positioning of first unexposed frame and exposure on each unexposed frame.Type: GrantFiled: June 7, 1995Date of Patent: September 23, 1997Assignee: Canon Kabushiki KaishaInventors: Toru Nagata, Kazuhiro Izukawa
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Patent number: 5621494Abstract: The present invention relates to a camera having a light-source determining function for determining the kind of light source. According to the present invention, the light-source determining function of the camera is realized by using the output of a light receiving part of a remote control processing part of the camera.Type: GrantFiled: October 19, 1994Date of Patent: April 15, 1997Assignee: Canon Kabushiki KaishaInventors: Jiro Kazumi, Toru Nagata, Kenji Yokoyama
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Patent number: 5606456Abstract: A device for compensating movement of an image formed by an optical system comprises first and second sensing units arranged at different positions along an optical axis of the optical system to sense an acceleration of the device, a compensation optical system arranged on a light path of the optical system and supported movably relative to the device to compensate for the movement of the image driver for driving the compensation optical system, and a calculation unit for calculating a displacement of the compensation optical system based on the outputs of the first and second acceleration sensing units and supplying displacement information to the driver.Type: GrantFiled: February 16, 1994Date of Patent: February 25, 1997Assignee: Canon Kabushiki KaishaInventors: Toru Nagata, Hiromi Someya
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Patent number: 5479228Abstract: A camera using a film with a magnetic memory portion including a first data setting unit for setting data voluntarily set by a user, a recording unit for recording the voluntarily set data together with an ID for the voluntarily set data on the magnetic memory portion of the film, a second data setting unit for setting predetermined data other than the voluntarily set data, and a control unit for causing the recording unit to record the predetermined data together with the ID for the voluntarily set data on the magnetic memory portion of the film.Type: GrantFiled: February 7, 1994Date of Patent: December 26, 1995Assignee: Canon Kabushiki KaishaInventors: Hideo Tamamura, Toru Nagata
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Patent number: 5325138Abstract: A camera is used with a film having a magnet record portion for each frame thereof. The camera is provided with a head portion for writing information in the magnetic record portion. When the film is rewound halfway up the end thereof, the head portion writes a plurality of specific information pieces in the record portion of each unexposed frame.Type: GrantFiled: March 4, 1993Date of Patent: June 28, 1994Assignee: Canon Kabushiki KaishaInventor: Toru Nagata
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Patent number: 5298935Abstract: A camera photographic light source determining apparatus has a photometric section for measuring light in a plurality of different ranges, a determination section for determining a photometric range of the plurality of different ranges, in which a main light source for illuminating an object is present, in response to the photometric section, and a detection section for detecting the type of the main light source in response to the determination section.Type: GrantFiled: January 15, 1993Date of Patent: March 29, 1994Assignee: Canon Kabushiki KaishaInventor: Toru Nagata
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Patent number: 5281987Abstract: A camera with a processing device for reading information recorded on an information recording medium corresponding to each frame of film, and for writing information into the information recording medium, includes a control circuit for substantially erasing a subset of a plurality of data items pre-recorded on the recording medium for each frame, by writing information on the recording medium for each frame with the processing device, and a judgment circuit for (i) counting a number of non-erased data items on the recording medium for each frame, (ii) comparing the counted number with a threshold value, the threshold value being less than a number of the plurality of pre-recorded data items, and (iii) judging that the writing of information has not been performed by the processing means when the counted number is greater than or equal to the threshold value.Type: GrantFiled: November 1, 1991Date of Patent: January 25, 1994Assignee: Canon Kabushiki KaishaInventor: Toru Nagata
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Patent number: 5260739Abstract: This invention relates to a camera in which the color of a photographing light source is colorimetered to thereby obtain colorimetry information. This invention provides a camera of the above-described type in which provision is made for a sensor for measuring the colors of the photographing light source in different directions from the camera and the direction to be measured by the sensor is detected and is designated on the basis of the object distance and the color of the light source in the designated direction.Type: GrantFiled: September 4, 1991Date of Patent: November 9, 1993Assignee: Canon Kabushiki KaishaInventor: Toru Nagata
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Patent number: 5099694Abstract: The present invention discloses a vibration detecting apparatus for obtaining a signal indicating the speed or displacement of an object by integrating a signal generated by an acceleration meter or a speed-meter, equipped with an integrator with a variable lower limit frequency of the integrable frequency range or bandwidth, and a control unit for varying the lower limit frequency of the integrator according to a predetermined method in response to the input and/or output of the integrator.Type: GrantFiled: May 18, 1988Date of Patent: March 31, 1992Assignee: Canon Kabushiki KaishaInventors: Hiroshi Sumio, Toru Nagata, Koichi Washisu, Masao Shikaumi
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Patent number: 5101230Abstract: An image stabilization device includes image processing means for receiving a beam from an object and utilizing the beam as image information, blur correcting means for driving an imaging system to correct blurring of an image, initial setting means for setting the imaging means to an initial drive state of the blur correcting means, and interlocking control means for inhibiting a simultaneous operation of the image processing means and the initial setting means.Type: GrantFiled: February 11, 1991Date of Patent: March 31, 1992Assignee: Canon Kabushiki KaishaInventors: Masao Shikaumi, Toru Nagata, Hiroshi Sumio, Koichi Washisu
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Patent number: 5020369Abstract: An angular acceleration meter, for use in an image stabilizing optical device, is provided with a seesaw rotatably supported about an angular acceleration detecting axis and constitutes a detecting mass, in which the seesaw is shaped as an arc form with curved or polygonal surface symmetric with a respect to the detecting axis.Type: GrantFiled: May 12, 1989Date of Patent: June 4, 1991Assignee: Canon Kabushiki KaishaInventors: Koichi Washisu, Ichiro Ohnuki, Toru Nagata
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Patent number: 4965619Abstract: An image stabilizing device prevents the image blur caused by the vibration of an optical system, is provided with image stabilizing means for preventing the image blur caused by the vibration of the optical system; and a control unit for controlling the image stabilizing means in automatic response to the status of the camera body.Type: GrantFiled: January 19, 1989Date of Patent: October 23, 1990Assignee: Canon Kabushiki KaishaInventors: Masao Shikaumi, Toru Nagata, Koichi Washisu, Hiroshi Sumio
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Patent number: 4757388Abstract: In a camera having an electronic finder for converting an object image formed by an image forming optical system of the camera to electrical signals and performing a display in response to said signals, apparatus is provided for supporting the electronic finder in such a way as to enable the electronic finder to be observed from either the front or the rear of the camera, and a control circuit is provided for changing the display state of the electronic finder in response to the support state of the supporting apparatus.Type: GrantFiled: August 8, 1986Date of Patent: July 12, 1988Assignee: Canon Kabushiki KaishaInventors: Hiromi Someya, Yoshihiko Aihara, Toru Nagata
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Patent number: 4731624Abstract: A data imprinting device provided with an input lock switch for disabling the input of imprinting data by data input switches, and a discriminating circuit for disabling the data input when the input lock switch is ON and only when all the data input switches are ON.Type: GrantFiled: October 3, 1986Date of Patent: March 15, 1988Assignee: Canon Kabushiki KaishaInventors: Toru Nagata, Chikara Aoshima, Hiroshi Maeno, Hideo Tamamura
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Patent number: 4643549Abstract: A data imprinting device having an input lock switch responsive to external pressure for rendering unable the input of imprinting data by an input switch, wherein the input switch and the input lock switch controls the operation of a lamp for illuminating the imprinting data in such a way that the illumination differs between when the input is unable and when the data has been input.Type: GrantFiled: February 25, 1985Date of Patent: February 17, 1987Assignee: Canon Kabushiki KaishaInventors: Toru Nagata, Chikara Aoshima, Hiroshi Maeno, Hideo Tamamura
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Patent number: 4619509Abstract: A film winding device for a camera including a drive source; a sprocket arranged to be rotated by a film when the film is wound up on a spool of the camera; and a one-way clutch arranged to make the driving force of the drive source transmissible to the sprocket when the input shaft thereof is rotated in the direction of film winding and to remain in a non-transmissive state by virtue of the absolute rotating direction of the input shaft thereof when the input shaft rotates in the direction of film rewinding.Type: GrantFiled: June 19, 1985Date of Patent: October 28, 1986Assignee: Canon Kabushiki KaishaInventors: Chikara Aoshima, Toru Nagata
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Patent number: 4614416Abstract: A device for controlling the operation of a camera includes a speed governing member arranged to be operated by a driving force differing from a driving force used for driving shutter blades. The opening speed of the shutter blades is stably controlled by the speed governing member. The control device retards the speed of a shutter blade opening action to enable an automatic focusing action to be performed before the photo-taking aperture actually begins to open after commencement of the shutter blade opening action.Type: GrantFiled: June 27, 1985Date of Patent: September 30, 1986Assignee: Canon Kabushiki KaishaInventors: Toyotosi Suzuki, Toru Nagata
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Patent number: 4588273Abstract: An information input device for a camera including a contact disposed in the vicinity of a patrone chamber in contact with the outer circumference of a patrone (film cartridge), a protecting member which moves between at least a first position for protecting the contact and a second position for exposing the contact, and a moving device for moving the protecting member between at least the first and the second positions according to an exposure operation of the camera. The protecting member slides over a contact area which is in contact with the patrone during its moving process between the first and the second positions.Type: GrantFiled: November 6, 1984Date of Patent: May 13, 1986Assignee: Canon Kabushiki KaishaInventor: Toru Nagata
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Patent number: 4548304Abstract: A one-way clutch having a pawl member whose attitude is controlled in accordance with the direction of rotation of the input side of the clutch and which turns as the input side rotates in a given direction thus operating to change over between transmission and non-transmission of a driving force by controlling engagement and disengagement in accordance with the direction of rotation and the attitude of the pawl member. In application of this one-way clutch to winding and rewinding devices for cameras when one of a pair of one-way clutches is in the transmitting state by rotation of the motor in a given direction, the other one-way clutch is prevented from becoming engaged as a result of motion of the film.Type: GrantFiled: November 16, 1982Date of Patent: October 22, 1985Assignee: Canon Kabushiki KaishaInventor: Toru Nagata