Patents by Inventor Noritsugu Hirata
Noritsugu Hirata 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: 20020135921Abstract: A recording and reproducing apparatus comprising a reproducing member for reproducing number-of-times-of-copy information and possible-number-of-times-of-copy information recorded on a recording medium, a renewing circuit for renewing the number-of-times-of-copy information reproduced by the reproducing member, a determining circuit for determining whether or not it is possible to perform copying by comparing the possible-number-of-times-of-copy information with the number-of-times-of-copy information, and a recording member for recording the number-of-times-of-copy information renewed by the renewing circuit on the recording medium.Type: ApplicationFiled: February 7, 2000Publication date: September 26, 2002Inventor: Noritsugu Hirata
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Patent number: 6449109Abstract: A recording and reproducing apparatus comprising a reproducing member for reproducing number-of-times-of-copy information and possible-number-of-times-of-copy information recorded on a recording medium, a renewing circuit for renewing the number-of-times-of-copy information reproduced by the reproducing member, a determining circuit for determining whether or not it is possible to perform copying by comparing the possible-number-of-times-of-copy information with the number-of-times-of-copy information, and a recording member for recording the number-of-times-of-copy information renewed by the renewing circuit on the recording medium.Type: GrantFiled: February 7, 2000Date of Patent: September 10, 2002Assignee: Canon Kabushiki KaishaInventor: Noritsugu Hirata
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Patent number: 6052242Abstract: A recording and reproducing apparatus comprising a reproducing member for reproducing number-of-times-of-copy information and possible-number-of-times-of-copy information recorded on a recording medium, a renewing circuit for renewing the number-of-times-of-copy information reproduced by the reproducing member, a determining circuit for determining whether or not it is possible to perform copying by comparing the possible-number-of-times-of-copy information with the number-of-times-of-copy information, and a recording member for recording the number-of-times-of-copy information renewed by the renewing circuit on the recording medium.Type: GrantFiled: October 16, 1998Date of Patent: April 18, 2000Assignee: Canon Kabushiki KaishaInventor: Noritsugu Hirata
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Patent number: 5907443Abstract: A recording and reproducing apparatus comprising a reproducing member for reproducing number-of-times-of-copy information and possible-number-of-times-of-copy information recorded on a recording medium, a renewing circuit for renewing the number-of-times-of-copy information reproduced by the reproducing member, a determining circuit for determining whether or not it is possible to perform copying by comparing the possible-number-of-times-of-copy information with the number-of-times-of-copy information, and a recording member for recording the number-of-times-of-copy information renewed by the renewing circuit on the recording medium.Type: GrantFiled: September 24, 1992Date of Patent: May 25, 1999Assignee: Canon Kabushiki KaishaInventor: Noritsugu Hirata
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Patent number: 5010424Abstract: A multi-channel recording apparatus in which n rotary heads (n is 3 or higher integer) are arranged on the outer peripheral edge of a drum is evenly spaced relation, and a tape-shaped recording medium is trained round the drum over an angular range of at least 360.degree..times.(1-1/n), while recording (n-1) channels of a signal on the recording medium by using the (n-1) of the n heads which are simultaneously tracing on the medium.Type: GrantFiled: May 10, 1989Date of Patent: April 23, 1991Assignee: Canon Kabushiki KaishaInventors: Masahide Hasegawa, Mitsuhiro Otokawa, Hidetoshi Matsuoka, Noritsugu Hirata
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Patent number: 4897739Abstract: A multi-channel recording apparatus in which n rotary heads (n is 3 or higher integer) are arranged on the outer peripheral edge of a drum in evenly spaced relation, and a tape-shaped recording medium is trained round the drum over an angular range of at least 360.degree..times.(1-1/n), while recording (n-1) channels of a signal on the recording medium by using the (n-1) of the n heads which are simultaneously tracing on the medium.Type: GrantFiled: April 3, 1987Date of Patent: January 30, 1990Assignee: Canon Kabushiki KaishaInventors: Masahide Hasegawa, Mitsuhiro Otokawa, Hidetoshi Matsuoka, Noritsugu Hirata
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Patent number: 4801830Abstract: A flat brushless motor having magnetoresistive elements includes a flat multipole permanent magnet mounted on a rotary shaft, a yoke member positioned in such a manner as to face the permanent magnet, and coils. The brushless motor also incorporates a plurality of zig-zag patterns of magnetoresistive elements which are formed on a plane perpendicular to the axis of the rotary shaft.Type: GrantFiled: July 29, 1987Date of Patent: January 31, 1989Assignee: Canon Kabushiki KaishaInventors: Shigeru Ogino, Noritsugu Hirata, Tatsuzo Ushiro
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Patent number: 4573089Abstract: A recording and reproducing apparatus in which an information signal is recorded in the first area of a track on a recording medium, a pilot signal is recorded in the second area for tracking control. When a reproducing head is on the second area, tracking by a reproducing head in the first area is controlled by the pilot signal reproduced by the reproducing head.Type: GrantFiled: June 13, 1983Date of Patent: February 25, 1986Assignee: Canon Kabushiki KaishaInventors: Masaya Maeda, Noritsugu Hirata, Hiroyuki Takimoto
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Patent number: 4456349Abstract: This invention relates to a cinematographic camera and more particularly to a method of controlling operation of the cinematographic camera in accordance with a sequence of instructions programmed to carry out a photographic process. In order to carry out a plurality of operating modes by use of one and the same control circuit, the program is planed to include a plurality of different photographic process program sections along with a selection program for selection of any one of said process program sections.Type: GrantFiled: January 29, 1980Date of Patent: June 26, 1984Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hidekazu Okajima, Tomoshi Takigawa, Toshikazu Ichiyanagi, Hiroyuki Takimoto
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Patent number: 4447837Abstract: A video recording system includes a combination of a cassette type video recorder and a portable video camera, in which the recorder is provided with a battery for supplying power to both parts.The camera has first and second switches which are so made that the switches are operated in sequence for controlling an operating condition of the recorder and camera. When the first switch is actuated, a shooting operation of the camera is started and the recorder is set into a stand-by state for recording. Then by an actuation of the second switch a recording operation of the recorder is started.Type: GrantFiled: December 7, 1982Date of Patent: May 8, 1984Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hiroyuki Takimoto, Masaya Maeda
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Patent number: 4410247Abstract: A three-motion picture camera is equipped with a shutter opening angle adjusting device capable of changing the opening angle of a shutter including a plurality of concentrically disposed shutter blades from 0.degree. to a predetermined opening angle by changing on relative position of the shutter blades. The opening angle adjusting device includes a mechanism for varying the relative position of the shutter blades, a cam mechanism for actuating said varying mechanism, and a motor for exclusively actuating the cam mechanism. The adjusting device is further provided with a control device for detecting the speed of the motor and controlling the rotational speed of the motor to a substantially constant speed, whereby the camera can perform fading photography which is assured of fading time and overlap photography having a fading effect.Type: GrantFiled: August 24, 1981Date of Patent: October 18, 1983Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hiroyuki Takimoto
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Patent number: 4365875Abstract: A motion picture camera is equipped with a shutter opening angle adjusting device capable of changing the opening angle of a shutter including a plurality of concentrically disposed shutter blades form 0.degree. to a predetermined opening angle by changing on relative position of the shutter blades. The opening angle adjusting device includes a mechanism for varying the relative position of the shutter blades, a cam mechanism for actuating said varying mechanism, and a motor for exclusively actuating the cam mechanism. The adjusting device is further provided with a control device for detecting the speed of the motor and controlling the rotational speed of the motor to a substantially constant speed, whereby the camera can perform fading photography which is assured of fading time and overlap photography having a fading effect.Type: GrantFiled: July 31, 1978Date of Patent: December 28, 1982Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hiroyuki Takimoto
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Patent number: 4363051Abstract: A video tape recorder allows pictures to be taken and recorded with a video camera connected to the recorder. The recorder has a push button which is activatable to stop recorder operation, and has a circuit for nullifying or defeating the operation of the stop push button. The nullifying circuit is controllable by the operation of the video camera connected to the recorder, and is arranged to nullify the operation of the stop push button at least when the video camera is performing a picture-taking operation.Type: GrantFiled: November 13, 1980Date of Patent: December 7, 1982Assignee: Canon Kabushiki KaishaInventors: Masaya Maeda, Noritsugu Hirata, Hiroyuki Takimoto
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Patent number: 4351590Abstract: A motion picture camera provided with an automatic focusing device is arranged to have an image of light emitted from an infrared ray emitting diode projected toward an object to be photographed, and to detect an in-focus state by detecting a peak value of output voltage from a light sensitive element as the direction of the emitted light is varied by a rotatable distance measuring cam. The automatic focusing device is adapted for a zoom lens assembly and is arranged to drive an imaging lens, supported by a shaft which is guided by plate shaped masks at both ends of the lens assembly, in the direction of the lens optical axis. The force for driving the imaging lens is kept low, so that the imaging lens can be accurately adjusted by a rotatable focusing cam during a focusing operation. The rotational position of the distance measuring cam, and that of the focusing cam, are provided in the form of resistance values which vary according to the cam lifts, or in the form of digital codes.Type: GrantFiled: October 14, 1980Date of Patent: September 28, 1982Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Masamichi Toyama, Hideto Iwama, Hidekazu Okajima, Akimasa Nishimura
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Patent number: 4331395Abstract: A motion picture camera having a start sequence digital circuit, by which various component elements in the camera related to photographic operations are sequentially and automatically operated with a predetermined relationship, when the trigger operating member of the camera is actuated, and a stop sequence digital circuit, by which the abovementioned various elements are sequentially and automatically stopped with a predetermined relationship, when the trigger operating member is released.Type: GrantFiled: April 24, 1980Date of Patent: May 25, 1982Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hiroyuki Takimoto
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Patent number: 4326790Abstract: A camera having a distance measuring optical system and a photograph taking optical system is provided with an optical member carrying body formed by unifying a carrying member carrying at least a part of the photograph taking optical system and a carrying member carrying the distance measuring optical system. The optical member carrying body is molded with a synthetic resin and an internal reinforcement member such as a metal plate.Type: GrantFiled: May 23, 1980Date of Patent: April 27, 1982Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Masamichi Toyama, Hidekazu Okajima, Akimasa Nishimura
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Patent number: 4318593Abstract: In the disclosed zoom lens assembly containing focusing optics, a variable magnification lens group and an image forming lens group, the focusing optics are divided into a first movable focusing lens group and a second movable focusing lens group, while a control device operatively engaged with a focusing mechanism moves the first and the second movable lens groups a predetermined amount in order to compensate for changes in the picture angle during the focusing operation.Type: GrantFiled: November 9, 1979Date of Patent: March 9, 1982Assignee: Canon Kabushiki KaishaInventors: Sadahiko Tsuji, Noritsugu Hirata, Kazuo Tanaka
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Patent number: 4278340Abstract: The present invention relates to a camera having an automatic focus adjusting device, being characterized in that the motor for the focus adjustment is not provided particularly, whereby the motor for the shutter operation and the film feeding is changed over by means of a clutch so as to be used for the focus adjustment.Type: GrantFiled: July 23, 1980Date of Patent: July 14, 1981Assignee: Canon Kabushiki KaishaInventors: Masamichi Toyama, Noritsugu Hirata, Hideto Iwama, Hidekazu Okajima, Akimasa Nishimura
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Patent number: 4257693Abstract: The present invention is to provide a cine camera in which the exposure time is accurately maintained by detecting the time during which the film is actually exposed and, upon occurrence of a difference of this detected value from the set value, by varying the shutter open angle to compensate the exposure time.Type: GrantFiled: February 8, 1979Date of Patent: March 24, 1981Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hiroyuki Takimoto
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Patent number: 4240720Abstract: A motion picture camera has a film receiving chamber with an image recording location and a sound recording location. When a sound film is loaded, it is guided to through both locations whereas when a silent film is loaded, it is guided through only the image recording location. A first film feed device and a second film feed device are provided; the first of which transports the film at the image recording location intermittently and the second film feed device transports the film at the sound recording location at a substantially constant speed. Apparatus are provided to detect disorder or abnormal change in operations of the camera and to stop the motion of the camera when such change occurs.Type: GrantFiled: August 16, 1978Date of Patent: December 23, 1980Assignee: Canon Kabushiki KaishaInventors: Noritsugu Hirata, Hiroyuki Takimoto