Patents by Inventor Akira Ishizaki
Akira Ishizaki 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: 6014524Abstract: A camera comprising: finder means for inspecting an object, illumination means for illuminating an operator's eye by which the operator looks in at the finder means, a condensing optical system for condensing a reflected light from the operator's eye, photoelectric converter means for receiving the condensed reflected light, calculation means for calculating a direction of a visual axis of the operator's eye on the basis of an output of the photoelectric converter means, and condition setting means operable in response to the result of the calculation of the calculation means, for setting taking conditions of the camera.Type: GrantFiled: April 29, 1994Date of Patent: January 11, 2000Assignee: Canon Kabushiki KaishaInventors: Kenji Suzuki, Akira Ishizaki, Keiji Ohtaka, Yasuo Suda, Hidehiko Fukahori, Akihiko Nagano, Kazuki Konishi, Tokuichi Tsunekawa
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Patent number: 5996187Abstract: A slider 1 for engaging at least two fasteners provided inside of opposed edge portions of a bag defining an opening. The fasteners each includes a male fastener member strip and provided on the inner surface of one of the edge portions and a female fastener member strip and provided on the inner surface of the other edge portion in opposed relation with the male fastener member. The slider 1 includes a slider body 2 and a clamp member 3 for the slider body 3. The slider body 2 includes two opposite plates 2a, 2a interconnected by a base portion 4 and foldable over each other at the base portion. At least one of plates 2a is formed in an inner surface thereof with at least two grooves 5, 5 arranged in parallel for fitting therein respective fastener portions of the bag for the plates 5, 5 to press and engage the fasteners from outside.Type: GrantFiled: November 18, 1998Date of Patent: December 7, 1999Assignees: Sun A Kaken Co., Ltd., Piaru CorporationInventors: Mikio Tanaka, Akira Ishizaki
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Patent number: 5827755Abstract: A liquid crystal image display unit created on a substrate non-transparent to the light in the visible radiation area, characterized in that a portion beneath a liquid crystal pixel part on said substrate is removed, so that the light is made transmissive through said liquid crystal pixel part.Type: GrantFiled: August 22, 1995Date of Patent: October 27, 1998Assignee: Canon Kabushiki KaishaInventors: Takao Yonehara, Mamoru Miyawaki, Akira Ishizaki, Junichi Hoshi, Masaru Sakamoto, Shigetoshi Sugawa, Shunsuke Inoue, Toru Koizumi, Tetsunobu Kohchi, Kiyofumi Sakaguchi, Takanori Watanabe
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Patent number: 5801373Abstract: In a solid-state image pickup device this invention, in order to satisfactorily detect optical signals over a wide spectrum range from a visible light range to an invisible light range, a photoelectric conversion element for converting an optical signal in the invisible light range into an electrical signal, and photoelectric conversion elements for converting an optical signal in the visible light range into an electrical signal are formed on a common semiconductor chip.Type: GrantFiled: October 14, 1997Date of Patent: September 1, 1998Assignee: Canon Kabushiki KaishaInventors: Hayao Oozu, Mamoru Miyawaki, Akira Ishizaki, Shigetoshi Sugawa
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Patent number: 5771070Abstract: A solid state image pickup apparatus for removing noise includes a plurality of photoelectric transducer cells, and first and second switch circuitry. Signal readout lines are provided for reading out signals from the plurality of transducer cells. A plurality of first capacitors, each connected to one of the signal readout lines through the first switch circuitry, are provided for selectively storing first signals read out through the signal lines and the first switch circuitry after a predetermined accumulation period. A plurality of second capacitors, each connected to one of the signal read out lines through the second switch circuitry, are provided for selectively storing second signals corresponding to dark current signals read out through the signal read out lines and the second switch circuitry.Type: GrantFiled: August 29, 1996Date of Patent: June 23, 1998Assignee: Canon Kabushiki KaishaInventors: Hayao Ohzu, Toshiji Suzuki, Akira Ishizaki, Seiji Hashimoto, Tadanori Harada, Tsuneo Suzuki
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Patent number: 5754268Abstract: A display device in which an area corresponding to electrodes placed one upon another is arranged to change into a light-transmissive state by applying a potential difference between the electrodes includes a pair of transparent electrodes respectively formed on a pair of transparent substrates, one of the pair of transparent electrodes having at least an electrode area of the same shape as a display pattern, a display substance disposed between the pair of transparent substrates, and a third transparent substrate disposed between the pair of transparent substrates, the third transparent substrate having a transparent electrode formed in an area other than an area corresponding to the display pattern.Type: GrantFiled: January 21, 1997Date of Patent: May 19, 1998Assignee: Canon Kabushiki KaishaInventors: Yoshihiko Aihara, Akira Ishizaki, Terutake Kadohara
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Patent number: 5748171Abstract: A liquid crystal display with a pixel matrix has a bias circuit for individually applying a bias voltage to color signals input to a pixel. By individually controlling the bias voltage applied to each color signal according to temperature, undesirable density or color change can be avoided. Further, a bias voltage can be applied to a common electrode and regulated in accordance with an integration of the voltage of a pixel so that the integration result becomes zero, to avoid production of a burning phenomenon.Type: GrantFiled: November 19, 1996Date of Patent: May 5, 1998Assignee: Canon Kabushiki KaishaInventors: Akira Ishizaki, Katsuhisa Ogawa
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Patent number: 5737016Abstract: Solid state image pickup apparatus for removing noise includes a plurality of photoelectric transducer elements for converting incident light into electrical signals, each of the transducer elements having a signal fluctuation. Control circuitry is provided having a first mode for reading out from each transducer element a first signal corresponding to a signal component and a noise component caused by the fluctuation. The control circuitry has a second mode for reading out from each transducer element a second signal corresponding to the noise component caused by the fluctuation, the first and second signals being read out in the same manner from each transducer element. Amplification circuitry is provided for amplifying the first and second signals, the amplification circuitry including a plurality of amplifiers each amplifier being coupled to a respective one of the plurality of transducer elements.Type: GrantFiled: August 7, 1995Date of Patent: April 7, 1998Assignee: Canon Kabushiki KaishaInventors: Hayao Ohzu, Toshiji Suzuki, Akira Ishizaki, Seiji Hashimoto, Tadanori Harada, Tsuneo Suzuki
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Patent number: 5701065Abstract: In a novel method and apparatus for controlling a synchronous motor, an angular position transducer, in whose output winding three-phase voltages with amplitude variations of N (N: an integer of 1 or more) cycles per revolution is induced, is directly coupled to a synchronous motor with 2N poles so that the demodulated a-phase voltage of the transducer has its positive peak value multiplied by the cosine of a selected angle as MMF phase angle when a direct axis of the motor is located in the position of its a-phase winding axis. The instructions to control three-phase currents of an inverter feeding the motor are produced by multiplying the current phase instructions by the amplitude instruction. The former is directly obtained using the three-phase voltages demodulated from the output of the transducer and the latter is derived from the detected speed deviation or torque instruction.Type: GrantFiled: January 11, 1996Date of Patent: December 23, 1997Inventor: Akira Ishizaki
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Patent number: 5666180Abstract: A liquid crystal display having a plurality of sets of matrix wiring elements, a plurality of active elements and a liquid crystal layer includes a conductive layer for being maintained at a predetermined potential, which layer is selectively provided around each of pixel electrodes individually provided for each pixel. An image information processing apparatus includes such a liquid crystal display. The selective formation of the conductive layer makes it possible to reduce cross-talk while reducing the risk of the generation of unwanted parasitic capacitance and leakage current.Type: GrantFiled: May 14, 1996Date of Patent: September 9, 1997Assignee: Canon Kabushiki KaishaInventors: Akira Ishizaki, Mamoru Miyawaki, Shigeki Kondo
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Patent number: 5612230Abstract: An insulated gate type transistor includes a plurality of major electrode regions, a channel region provided between the plurality of major electrode regions, a gate electrode provided on the channel region with a gate insulating film therebetween, and a semiconductor region provided in contact with the channel region, the semiconductor region having the same conductivity type as that of the channel region and a higher impurity concentration than the channel region. The gate electrode has at least two opposing portions. The plurality of major electrode regions are provided on an substrate insulating film. The transistor is activated in a state where the semiconductor region is maintained at a predetermined voltage. A semiconductor device includes a plurality of memory cells, each of which includes the aforementioned insulated gate type transistor and an electrically breakable memory element provided on one of the major electrode regions.Type: GrantFiled: April 6, 1995Date of Patent: March 18, 1997Assignee: Canon Kabushiki KaishaInventors: Hiroshi Yuzurihara, Mamoru Miyawaki, Akira Ishizaki, Genzo Momma, Tetsunobu Kochi
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Patent number: 5600344Abstract: A liquid crystal display driven in multiplex with a plurality of pixels arranged in a matrix comprises a main display, and at least one sub-display located at least partly around the periphery of the main display.Type: GrantFiled: November 21, 1995Date of Patent: February 4, 1997Assignee: Canon Kabushiki KaishaInventors: Koichi Sono, Mamoru Miyawaki, Akira Ishizaki, Katsuhisa Ogawa, Katsuhito Sakurai
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Patent number: 5595920Abstract: A semiconductor memory device includes: an insulated gate transistor having a plurality of main electrode regions provided along a major surface of a substrate and a channel region provided between the plurality of main electrode regions, and a gate electrode provided on the channel region with a gate insulator therebetween, the gate electrode having at least two opposing portions; and an electrically breakable memory element provided on one of the main electrode regions.Type: GrantFiled: April 6, 1995Date of Patent: January 21, 1997Assignee: Canon Kabushiki KaishaInventors: Mamoru Miyawaki, Akira Ishizaki, Genzo Momma, Hiroshi Yuzurihara, Tetsunobu Kohchi
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Patent number: 5579027Abstract: An image display apparatus, having a pixel configuration in which pixels on the n-th line and pixels on the n+1-th line are deviated in the horizontal direction, improves the resolution in the horizontal direction by changing over an image signal to be sampled between a delay signal DL and a through signal TH supplied from a delay circuit so as to deviate the image signal by a time corresponding to the deviation of the pixels. By sampling the image signal which corresponds to each line while deviating the image signal by the time which corresponds to the deviation of the pixels in the horizontal direction, the deviation between the pixel and the signal is eliminated, so that the resolution in the horizontal direction is improved.Type: GrantFiled: March 12, 1996Date of Patent: November 26, 1996Assignee: Canon Kabushiki KaishaInventors: Katsuhito Sakurai, Mamoru Miyawaki, Akira Ishizaki
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Patent number: 5567962Abstract: A semiconductor memory device includes: an insulated gate transistor having a plurality of main electrode regions provided along a major surface of a substrate and a channel region provided between the plurality of main electrode regions, and a gate electrode provided on the channel region with a gate insulator therebetween, the gate electrode having at least two opposing portions; and an electrically breakable memory element provided on one of the main electrode regions.Type: GrantFiled: June 21, 1994Date of Patent: October 22, 1996Assignee: Canon Kabushiki KaishaInventors: Mamoru Miyawaki, Akira Ishizaki, Genzo Momma, Hiroshi Yuzurihara, Tetsunobu Kohchi
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Patent number: 5548708Abstract: Image data is hierarchically coded by a coder, and the coded data is stored in a database. A decoder hierarchically decodes the coded data stored in the database, and image data corresponding to each hierarchy is generated. The decoder generates image data of a plurality of levels of resolutions from a low resolution to high resolution from the coded data stored in the database. The image data of the high resolution is original image data. Editing such as enlargement, reduction, transfer, and rotation, specified by an operator, is executed using the image data of the low resolution obtained from the decoder. The content of the edit processing by the operator is stored in a memory. When the editing operation ends, CPU executes the edit processing on the original image data obtained from the decoder based on the content of the edit processing stored in the memory. The final editing is thus performed on the original image data.Type: GrantFiled: May 24, 1993Date of Patent: August 20, 1996Assignee: Canon Kabushiki KaishaInventors: Yukihiko Sakashita, Akira Ishizaki
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Patent number: 5536361Abstract: A process for preparing a semiconductor substrate comprises a step of making a silicon substrate porous, a step of forming a non-porous silicon monocrystalline layer on the resulting porous substrate, a step of bonding the surface of the non-porous silicon monocrystalline layer to another substrate having a metallic surface, and a step of removing the porous silicon layer of the bonded substrates by selective etching.Type: GrantFiled: January 23, 1995Date of Patent: July 16, 1996Assignee: Canon Kabushiki KaishaInventors: Shigeki Kondo, Shigeyuki Matsumoto, Akira Ishizaki, Shunsuke Inoue, Yoshio Nakamura
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Patent number: 5530266Abstract: A liquid crystal image display unit created on a substrate non-transparent to the light in the visible radiation area, characterized in that a portion beneath a liquid crystal pixel part on said substrate is removed, so that the light is made transmissive through said liquid crystal pixel part.Type: GrantFiled: May 13, 1994Date of Patent: June 25, 1996Assignee: Canon Kabushiki KaishaInventors: Takao Yonehara, Mamoru Miyawaki, Akira Ishizaki, Junichi Hoshi, Masaru Sakamoto, Shigetoshi Sugawa, Shunsuke Inoue, Toru Koizumi, Tetsunobu Kohchi, Kiyofumi Sakaguchi, Takanori Watanabe
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Patent number: 5513028Abstract: A liquid crystal display device has a pixel electrode substrate with a step defined by adjacent display and non-display areas. The display area has substantially the same height as a portion of the close periphery thereof. In the liquid crystal display device, the step is an electrically insulated dummy part which is not used as the display area. The dummy part has the same layer structure as the pixels in the display area.Type: GrantFiled: April 10, 1995Date of Patent: April 30, 1996Assignee: Canon Kabushiki KaishaInventors: Koichi Sono, Mamoru Miyawaki, Akira Ishizaki, Katsuhisa Ogawa, Katsuhito Sakurai, Shigetoshi Sugawa, Shigeki Kondo
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Patent number: 5486892Abstract: A camera includes a finder for inspecting an object, a illuminator for illuminating an operator's eye by which the operator looks in at the finder means, a condensing optical system for condensing a reflected light from the operator's eye, a photoelectric converter for receiving the condensed reflected light, calculator for calculating a direction of a visual axis of the operator's eye on the basis of an output of the photoelectric converter, and a condition setter operable in response to the result of the calculation of the calculator for setting photographing conditions of the camera.Type: GrantFiled: October 28, 1994Date of Patent: January 23, 1996Assignee: Canon Kabushiki KaishaInventors: Kenji Suzuki, Akira Ishizaki, Keiji Ohtaka, Yasuo Suda, Hidehiko Fukahori, Akihiko Nagano, Kazuki Konishi, Tokuichi Tsunekawa