Patents by Inventor Toshihiro Saika
Toshihiro Saika 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: 7969622Abstract: In the so-called sky-shot in which reading is performed with a platen cover (32) open, an output signal of a read image is compared with a white reference value generated from a white reference member (40). Only if a value greater than or equal to the white reference value exists in the output signal of the read image, a reading operation to be performed with a light source unit in an image sensor unit (33) turned off during an original (34) reading operation is added to each scan line reading operation.Type: GrantFiled: May 1, 2009Date of Patent: June 28, 2011Assignee: Canon Components, Inc.Inventor: Toshihiro Saika
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Publication number: 20110043874Abstract: In the so-called sky-shot in which reading is performed with a platen cover (32) open, an output signal of a read image is compared with a white reference value generated from a white reference member (40). Only if a value greater than or equal to the white reference value exists in the output signal of the read image, a reading operation to be performed with a light source unit in an image sensor unit (33) turned off during an original (34) reading operation is added to each scan line reading operation.Type: ApplicationFiled: May 1, 2009Publication date: February 24, 2011Applicant: CANON COMPONENTS, INC.Inventor: Toshihiro Saika
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Patent number: 7262801Abstract: There is provided an image processing apparatus comprising: a sensor including a plurality of pixels each including a light receiving element, and a scanning circuit for reading out signals in time sequence from the plurality of pixels; and a drive circuit which supplies pulses for driving the scanning circuit, wherein the drive circuit is so arranged to output at least a first pulse and a second pulse smaller than the first pulse, the drive circuit supplying the first pulse to the scanning circuit when a first resolution is selected, and supplying the first pulse and the second pulse to the scanning circuit when a second resolution lower than the first resolution is selected.Type: GrantFiled: March 6, 2002Date of Patent: August 28, 2007Assignees: Canon Kabushiki Kaisha, Canon Components, Inc.Inventor: Toshihiro Saika
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Publication number: 20020135827Abstract: There is provided an image processing apparatus comprising: a sensor including a plurality of pixels each including a light receiving element, and a scanning circuit for reading out signals in time sequence from the plurality of pixels; and a drive circuit which supplies pulses for driving the scanning circuit, wherein the drive circuit is so arranged to output at least a first pulse and a second pulse smaller than the first pulse, the drive circuit supplying the first pulse to the scanning circuit when a first resolution is selected, and supplying the first pulse and the second pulse to the scanning circuit when a second resolution lower than the first resolution is selected.Type: ApplicationFiled: March 6, 2002Publication date: September 26, 2002Inventor: Toshihiro Saika
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Patent number: 6144466Abstract: An electronic circuit apparatus comprises an array of M.times.N functional elements, M.times.N switching elements provided in a one-to-one correspondence with the M.times.N functional elements, a shift register having M output lines, and a selector having N select lines. M control lines are commonly connected in units of N elements of the M.times.N switching elements. The M control lines are connected to the M output lines of said shift register. N input and/or output lines are commonly connected in units of M elements of the M.times.N switching elements. The N input and/or output lines are connected to the N select lines of the selector. Transistors constituting the shift register are thin-film transistors. And, transistors constituting the selector are transistors each having an active region consisting of a single-crystal semiconductor.Type: GrantFiled: November 12, 1997Date of Patent: November 7, 2000Assignee: Canon Kabushiki KaishaInventors: Hidemasa Mizutani, Mineto Yagyu, Noriyuki Kaifu, Toshihiro Saika
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Patent number: 6069393Abstract: An image sensor includes a photoelectric conversion unit, a charge storage unit, a switch unit, and a wiring unit, all of which are formed on a single substrate. A capacitor of the charge storage unit is formed at the same substrate position as that of a pattern of said wiring unit.Type: GrantFiled: June 6, 1995Date of Patent: May 30, 2000Assignee: Canon Kabushiki KaishaInventors: Katsunori Hatanaka, Toshihiro Saika, Takayuki Ishii, Katsuhiko Yamada, Satoshi Itabashi, Kazuaki Tashiro, Tetsuya Shimada
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Patent number: 5900622Abstract: A photoelectric conversion apparatus is constructed in such an arrangement that a light-source substrate, in which a light source is arranged, and a photosensor are directly mounted on a frame bearing the strength of the main body of an information processing apparatus, the above light-source substrate may be unified with an electric circuit substrate of the information processing apparatus, and the electric circuit substrate has the photosensor and the light source, whereby the size and weight of the apparatus can be further decreased, the freedom of design and engineering design can be improved, and simplification of assembling and improvement in reliability can be achieved.Type: GrantFiled: October 27, 1995Date of Patent: May 4, 1999Assignee: Canon Kabushiki KaishaInventors: Makoto Ogura, Tatsundo Kawai, Toshihiro Saika
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Patent number: 5834822Abstract: An image sensor includes a substrate on which a light-receiving element and a thin-film transistor for transferring an output from the light-receiving element are formed, and a silicon integrated circuit chip for driving the thin-film transistor and processing signals. All externally connected input/output signal lines are extracted through or electrical connections to the silicon integrated circuit chip.Type: GrantFiled: April 25, 1997Date of Patent: November 10, 1998Assignee: Canon Kabushiki KaishaInventors: Katsunori Hatanaka, Toshihiro Saika, Takayuki Ishii, Katsuhiko Yamada
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Patent number: 5812284Abstract: An electronic circuit apparatus comprises an array of M.times.N functional elements, M.times.N switching elements provided in a one-to-one correspondence with the M.times.N functional elements, a shift register having M output lines, and a selector having N select lines. M control lines are commonly connected in units of N elements of the M.times.N switching elements. The M control lines are connected to the M output lines of said shift register. N input and/or output lines are commonly connected in units of M elements of the M.times.N switching elements. The N input and/or output lines are connected to the N select lines of the selector. Transistors constituting the shift register are thin-film transistors. And, transistors constituting the selector are transistors each having an active region consisting of a single-crystal semiconductor.Type: GrantFiled: November 25, 1994Date of Patent: September 22, 1998Assignee: Canon Kabushiki KaishaInventors: Hidemasa Mizutani, Mineto Yagyu, Noriyuki Kaifu, Toshihiro Saika
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Patent number: 5703666Abstract: A liquid crystal device has a light source and liquid crystal elements which selectively transmit light emitted by the light source. The liquid crystal device comprises: the light source, being an electroluminescent device, having a transparent electrode disposed on a light output side of the light source, an electrode opposite to the transparent electrode, and an electroluminescence emission layer interposed between the transparent electrode and the opposite electrode; voltage supply means connected to the transparent electrode in order to feed a reference voltage to the transparent electrode; and driving voltage application means for applying a driving voltage to the opposite electrode.Type: GrantFiled: August 8, 1995Date of Patent: December 30, 1997Assignee: Canon Kabushiki KaishaInventors: Toshihiro Saika, Hidemasa Mizutani, Noriyuki Kaifu, Toshio Kameshima
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Patent number: 5680229Abstract: There is disclosed a photoelectric conversion element having a photoelectric conversion portion, at least comprising an insulating layer, a photoconductive semiconductor layer provided in contact with said insulating layer, and made of a non-single crystal material containing hydrogen atoms with the base of silicon, first and second electrodes provided in contact with the photoconductive semiconductor layer, and a third electrode provided in contact with the insulating layer. The amount of hydrogen atoms contained in said photoconductive semiconductor layer is made nonuniform in a thickness direction of said layer so that an energy band gap width of said layer changes.Type: GrantFiled: November 26, 1993Date of Patent: October 21, 1997Assignee: Canon Kabushiki KaishaInventors: Masato Yamanobe, Shinichi Takeda, Takayuki Ishii, Toshihiro Saika, Isao Kobayashi
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Patent number: 5672902Abstract: An image sensor includes a substrate on which are formed a light-receiving element and a thin-film transistor for transferring an output from the light-receiving element, and a silicon integrated circuit chip for driving the thin-film transistor and processing signals. All externally connected input/output signal lines are extracted through or electrically connected to the silicon integrated circuit chip.Type: GrantFiled: February 22, 1995Date of Patent: September 30, 1997Assignee: Canon Kabushiki KaishaInventors: Katsunori Hatanaka, Toshihiro Saika, Takayuki Ishii, Katsuhiko Yamada
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Patent number: 5627088Abstract: A photoelectric conversion device having a photoelectric conversion section and a transistor for transferring or amplification of the photoelectric conversion signal or an accumulating section of a photo carrier. The photoelectric conversion section and the transistor or the accumulating section have common semiconductor layer.Type: GrantFiled: September 29, 1993Date of Patent: May 6, 1997Assignee: Canon Kabushiki KaishaInventors: Masaki Fukaya, Soichiro Kawakami, Satoshi Itabashi, Katsunori Terada, Ihachiro Gofuku, Katsumi Nakagawa, Katsunori Hatanaka, Yoshinori Isobe, Toshihiro Saika, Tetsuya Kaneko, Nobuko Kitahara, Hideyuki Suzuki
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Patent number: 5567956Abstract: An information processing apparatus including a photoelectric conversion element having a photoelectric conversion section. The photoelectric conversion section has an insulating layer with first and second opposed surfaces, and a photoconductive semiconductor layer with first and second opposed surfaces and an intermediate region disposed therebetween, the second surface of the semiconductor layer being adjacent to the first surface of the insulating layer. The photoconductive semiconductor layer has a non-monocrystalline matrix of silicon atoms and including hydrogen atoms distributed nonuniformly. A concentration of the hydrogen atoms is greater near the first and second surfaces of the photoconductive semiconductor layer than in the intermediate region, so that an energy band gap width of the photoconductive semiconductor layer varies between the first and second surfaces of said photoconductive semiconductor layer.Type: GrantFiled: June 7, 1995Date of Patent: October 22, 1996Assignee: Canon Kabushiki KaishaInventors: Masato Yamanobe, Shinichi Takeda, Takayuki Ishii, Toshihiro Saika, Isao Kobayashi
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Patent number: 5486738Abstract: An electroluminescent device comprising a first electrode, a second electrode and an electroluminescence emission zone, the electroluminescence emission zone being made of a first electroluminescence emission layer, a second electroluminescence emission layer, and a transparent electrode which is interposed between the first electroluminescence emission layer and the second electroluminescence emission layer. At least either the first electrode or the second electrode is a transparent electrode. The first electroluminescence emission layer and the second electroluminescence emission layer emit light by applying a driving voltage to the transparent electrode with both the first electrode and the second electrode connected to a power supply for a reference voltage. In an image sensor using such an electroluminescent device as a light source, the electric field produced by the driving signal of the electroluminescent device does not escape outward, presenting no interfering noise to the image sensor.Type: GrantFiled: August 23, 1994Date of Patent: January 23, 1996Assignee: Canon Kabushiki KaishaInventors: Toshihiro Saika, Hidemasa Mizutani, Noriyuki Kaifu, Toshio Kameshima
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Patent number: 5384456Abstract: An electroluminescent device comprising a first electrode, a second electrode and an electroluminescence emission zone, the electroluminescence emission zone being made of a first electroluminescence emission layer, a second electroluminescence emission layer, and a transparent electrode which is interposed between the first electroluminescence emission layer and the second electroluminescence emission layer. At least either the first electrode or the second electrode is a transparent electrode. The first electroluminescence emission layer and the second electro luminescence emission layer emit light by applying a driving voltage to the transparent electrode with both the first electrode and the second electrode connected to a power supply for a reference voltage. In an image sensor using such an electroluminescent device as a light source, the electric field produced by the driving signal of the electroluminescent device does not escape outward, presenting no interfering noise to the image sensor.Type: GrantFiled: August 25, 1992Date of Patent: January 24, 1995Assignee: Canon Kabushiki KaishaInventors: Toshihiro Saika, Hidemasa Mizutani, Noriyuki Kaifu, Toshio Kameshima
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Patent number: 5338690Abstract: A photoelectric conversion device having a photoelectric conversion section and a transistor for transferring or amplification of the photoelectric conversion signal or an accumulating section of a photo carrier. The photoelectric conversion section and the transistor or the accumulating section have common semiconductor layer.Type: GrantFiled: July 9, 1992Date of Patent: August 16, 1994Assignee: Canon Kabushiki KaishaInventors: Masaki Fukaya, Soichiro Kawakami, Satoshi Itabashi, Katsunori Terada, Ihachiro Gofuku, Katsumi Nakagawa, Katsunori Hatanaka, Yoshinori Isobe, Toshihiro Saika, Tetsuya Kaneko, Nobuko Kitahara, Hideyuki Suzuki
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Patent number: 5335094Abstract: To eliminate non-read time in a photoelectric converting device, a photoelectric converting section is provided in which a plurality of photoelectric conversion elements, switching elements, matrix signal wirings, and gate drive wirings are arranged on the same substrate such that the photoelectric converting section generates parallel signals. A drive switching section is provided for applying drive signals to the gate drive wirings. A read switching section is provided for converting the parallel signals which are transferred from the matrix signal wirings into a serial signal, and for outputting the serial signal. The read switching section comprises a plurality of transfer switches respectively connected to the matrix signal wirings. The transfer switches are preferably activated together, simultaneously. A plurality of read capacitors are also provided in the read switching section to store the charges transferred through the matrix signal wirings.Type: GrantFiled: March 1, 1993Date of Patent: August 2, 1994Assignee: Canon Kabushiki KaishaInventors: Noriyuki Kaifu, Toshihiro Saika, Tadao Endo, Tetsuya Shimada
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Patent number: 5324928Abstract: The present invention relates to a method of driving a thin film transistor type optical sensor, having a gate electrode, a gate insulating layer, a thin film semiconductor layer, an ohmic contact layer, a source electrode and a drain electrode.The thin film transistor type optical sensor is driven by providing the gate electrode with a threshold voltage for a thin film transistor provided adjacent to the thin film transistor type optical sensor or a voltage based on the threshold voltage.Type: GrantFiled: November 24, 1992Date of Patent: June 28, 1994Assignee: Canon Kabushiki KaishaInventors: Toshihiro Saika, Isao Kobayashi, Noriyuki Kaifu, Tadao Endo
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Patent number: 5317406Abstract: An image reading device includes a plurality of photoelectric converting elements, a plurality of accumulating elements corresponding to each of the photoelectric converting elements, and switching circuitry for reading out the signals accumulated in the accumulating elements. Each of the photoelectric converting elements comprises a switching portion and a sensor portion. Driving circuitry is provided for driving the photoelectric converting elements by activating the switching portions to release the charges accumulated in the accumulating elements through the photoelectric converting elements in order to reset the accumulated elements.Type: GrantFiled: June 8, 1993Date of Patent: May 31, 1994Assignee: Canon Kabushiki KaishaInventors: Isao Kobayashi, Noriyuki Kaifu, Toshihiro Saika, Tadao Endo