Patents by Inventor Hiroshi Nakatani
Hiroshi Nakatani 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: 20110138230Abstract: First and second processing units execute the same control program to the same input data in parallel. An input/output unit generates the input data and receives one of two output data executed by the first and second processing units. A channel selection unit sends the input data to the first and second processing units and sends the one to the input/output unit by selecting the one from the two output data. In the first and second processing units, a control cycle synchronization unit generates a control cycle signal at a control cycle, a processor executes the control program, a data memory stores operation data including the input data, intermediate data being executed and output data executed by the processor. A diagnostics unit generates summary information by compressing the operation data and comparatively decides whether the summary information matches the other summary information of the other processing unit every control cycle.Type: ApplicationFiled: July 15, 2010Publication date: June 9, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Hiroshi Nakatani, Naoto Seto, Makoto Toko, Eigo Fukai
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Publication number: 20110084571Abstract: A magnetic head driving piezoelectric ceramic actuator having an actuator body and a coating layer. The actuator body has a piezoelectric ceramic substrate and first and second electrodes. The piezoelectric ceramic substrate has first and second principal surfaces, first and second side surfaces, and first and second edge surfaces. The first electrode has a first external electrode portion formed on a part of the first principal surface, and a second external electrode portion formed on the first edge surface. The second electrode has a third external electrode portion formed on the second edge surface, and a fourth external electrode portion formed on the first principal surface. Each of: at least a part of each of the first and second external electrode portions; and at least a part of each of the third and fourth external electrode portions, constitutes a joined portion mounted on the substrate by an electrically-conductive agent.Type: ApplicationFiled: October 5, 2010Publication date: April 14, 2011Inventors: Hiroshi Nakatani, Masanaga Nishikawa
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Patent number: 7906263Abstract: The color toner for developing electrostatic latent images comprising a colored resin particle containing at least a binder resin, a colorant, a charge control agent and a parting agent, wherein an extracted liquid with water by means of a hot water extraction method from said colorant has a pH value in the range from 6.0 to 8.0, said colored resin particle has a volume average particle diameter (Dv) in the range from 4 to 10 ?m and an average circularity in the range from 0.93 to 0.995, an amount of extracted components with methanol is 7% by weight or less, and an amount of residual volatile compounds is 500 ppm or less. The color toner for developing electrostatic latent images has excellent image-reproducibility and environmental durability and can form an image with a stable image density under a high temperature and high humidity condition.Type: GrantFiled: March 14, 2005Date of Patent: March 15, 2011Assignee: Zeon CorporationInventors: Hiroshi Nakatani, Toshihiko Yamato, Hiroto Kidokoro
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Patent number: 7870429Abstract: For a control apparatus to be boundary scan testable even when running, including processor cores in an operator to be capable of self-repairing a troubling part, an operator (2) has processor cores (2a, 2b) connected to a boundary scan bus (12), and adapted to mutually diagnose opponent processor cores for troubles, by boundary scan testing each other in a time-dividing manner.Type: GrantFiled: June 18, 2008Date of Patent: January 11, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Nakatani, Yoshito Sameda, Akira Sawada, Jun Takehara, Kouichi Takene, Hiroyuki Nishikawa
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Patent number: 7846632Abstract: The toner of the present invention, comprising a colored resin particle and an external additive, wherein said external additive contains a silica fine particle (A) having a Dv50/Dv10 of 1.8 or more, in which Dv10 represents a particle diameter at which a volume cumulative total from small particle diameter side is 10% and Dv50 represents a particle diameter at which the mentioned volume cumulative total is 50%, a volume average particle diameter in the range from 0.1 to 1.0?, and a sphericity in the range from 1 to 1.3. The toner of the present invention cause less fog, and excellent resolution on the printed image, excellent in cleaning property, and cause less filming.Type: GrantFiled: June 11, 2004Date of Patent: December 7, 2010Assignee: Zeon CorporationInventor: Hiroshi Nakatani
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Publication number: 20100266950Abstract: The toner of the present invention, comprising a colored resin particle and an external additive, wherein said external additive contains a silica fine particle (A) having a Dv50/Dv10 of 1.8 or more, in which Dv10 represents a particle diameter at which a volume cumulative total from small particle diameter side is 10% and Dv50 represents a particle diameter at which the mentioned volume cumulative total is 50%, a volume average particle diameter in the range from 0.1 to 1.0?, and a sphericity in the range from 1 to 1.3. The toner of the present invention cause less fog, and excellent resolution on the printed image, excellent in cleaning property, and cause less filming.Type: ApplicationFiled: July 1, 2010Publication date: October 21, 2010Applicant: ZEON CORPORATIONInventor: Hiroshi Nakatani
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Patent number: 7630675Abstract: A fuser unit with a cleaning mechanism, including: a set of a heat roller and a pressure roller for sandwiching a recording sheet while heating the recording sheet by the heat roller; a feed roller for feeding a band-shaped cleaning member which is windable; a press roller for pressing the fed cleaning member against a surface of the heat roller or the pressure roller; a wind roller for winding the cleaning member which is pressed by the press roller; and a first reverse rotation preventing mechanism for preventing rotation of the press roller from rotating in the opposite direction to the winding direction of the cleaning member.Type: GrantFiled: June 1, 2007Date of Patent: December 8, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Toyoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
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Publication number: 20090297196Abstract: In one embodiment, a fixing apparatus is configured of a pressing portion for causing the pressure roller to enter a pressure applied state by applying bias, a switching portion for causing the pressing portion in the pressure applied state to enter a pressure released state by causing a cam to rotate forward, a pressure state detection portion for detecting the pressure released state, and a control portion for, when shifting from the pressure applied state to the pressure released state, turning forward the cam of the switching portion in the pressure applied state and stopping the cam after the pressure state detection portion detects the pressure released state. If the cam is turned forward with respect to the switching portion for a certain time period, but the pressure state detection portion does not detect the pressure released state, the control portion performs forward rotational direction retry control.Type: ApplicationFiled: May 22, 2009Publication date: December 3, 2009Inventors: Takashi Yamanaka, Atsushi Ide, Kimihide Tsukamoto, Hiroshi Nakatani
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Publication number: 20090297181Abstract: In one embodiment of the present invention, a fixing apparatus that causes a recording material to pass through a nip portion formed by a rotating heat roller and a rotating pressure roller being in contact so as to perform a fixing operation is configured including a pressing mechanism that can switch between a pressure applied state in which the pressure roller presses against the heat roller using a bias and a pressure cancelled state in which the pressure is cancelled, a pressure state detection unit, and a control unit that performs a pressure cancelation operation and a pressure application operation.Type: ApplicationFiled: May 22, 2009Publication date: December 3, 2009Inventors: Takashi YAMANAKA, Atsushi IDE, Kimihide TSUKAMOTO, Hiroshi NAKATANI
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Publication number: 20090287867Abstract: A memory control unit controls writing and reading of data to the slave device according to an instruction from the master device. A bus diagnosis line is directly connected from the bus signal control circuit to a bus signal receiving terminal of the slave device without passing through the address bus and the control signal line. A bus signal abnormality processing unit compares an output bus signal output from the bus signal control circuit to the address bus and the control signal line with a feedback bus signal fed back through the bus diagnosis line to determine the presence/absence of a difference. The memory control unit elongates a bus cycle period of a bus cycle of operation being executed when it is determined in the bus signal abnormality processing unit that the difference is present.Type: ApplicationFiled: April 30, 2009Publication date: November 19, 2009Inventors: Jun Takehara, Naruhiko Aramaki, Toshikazu Kawamura, Yoshito Sameda, Hiroshi Nakatani, Motohiko Okabe, Yukitaka Yoshida
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Publication number: 20090285592Abstract: In an embodiment, in a fixing apparatus provided with a plurality of fixing heaters having heat distribution characteristics that are different from each other inside a fixing roller, and an image forming apparatus provided with the fixing apparatus, an auxiliary heater is provided, the auxiliary heater being provided inside the fixing roller and to which power is distributed only during the warm-up period until the fixing roller in a lower temperature state reaches a predetermined fixing temperature.Type: ApplicationFiled: May 5, 2009Publication date: November 19, 2009Inventors: Hiroshi Nakatani, Yoshinobu Tateishi, Atsushi Ide, Kimihide Tsukamoto, Takashi Yamanaka
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Publication number: 20080320331Abstract: For a control apparatus to be boundary scan testable even when running, including processor cores in an operator to be capable of self-repairing a troubling part, an operator (2) has processor cores (2a, 2b) connected to a boundary scan bus (12), and adapted to mutually diagnose opponent processor cores for troubles, by boundary scan testing each other in a time-dividing manner.Type: ApplicationFiled: June 18, 2008Publication date: December 25, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroshi Nakatani, Yoshito Sameda, Akira Sawada, Jun Takehara, Kouichi Takene, Hiroyuki Nishikawa
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Publication number: 20080281896Abstract: A first arithmetic operator (11) includes a first modular arithmetic coding encoder (11b) for encoding a numeric data transmitted by a command from a central controller (31) into a modular arithmetic code, a first arithmetic operation processor (11a) using the numeric data as modular arithmetic coded as an input operand, for executing an arithmetic operation based on a command from the central controller (13), to provide an output in the form of a modular arithmetic code, and a first modular arithmetic code decoder (11c) for determining presence or absence of a bit error in the numeric data output from the first arithmetic operation processor, correcting the bit error, if detected any, to output a decoded numeric data.Type: ApplicationFiled: April 24, 2008Publication date: November 13, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshito SAMEDA, Hiroshi Nakatani, Akira Sawada, Jun Takehara, Hiroyuki Nishikawa, Motohiko Okabe
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Publication number: 20080044752Abstract: The color toner for developing electrostatic latent images comprising a colored resin particle containing at least a binder resin, a colorant, a charge control agent and a parting agent, wherein an extracted liquid with water by means of a hot water extraction method from said colorant has a pH value in the range from 6.0 to 8.0, said colored resin particle has a volume average particle diameter (Dv) in the range from 4 to 10 ?m and an average circularity in the range from 0.93 to 0.995, an amount of extracted components with methanol is 7% by weight or less, and an amount of residual volatile compounds is 500 ppm or less. The color toner for developing electrostatic latent images has excellent image-reproducibility and environmental durability and can form an image with a stable image density under a high temperature and high humidity condition.Type: ApplicationFiled: March 14, 2005Publication date: February 21, 2008Applicant: ZEON CORPORATIONInventors: Hiroshi Nakatani, Toshihiko Yamato, Hiroto Kidokoro
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Publication number: 20070280753Abstract: A fuser unit with a cleaning mechanism, including: a set of a heat roller and a pressure roller for sandwiching a recording sheet while heating the recording sheet by the heat roller; a feed roller for feeding a band-shaped cleaning member which is windable; a press roller for pressing the fed cleaning member against a surface of the heat roller or the pressure roller; a wind roller for winding the cleaning member which is pressed by the press roller; and a first reverse rotation preventing mechanism for preventing rotation of the press roller from rotating in the opposite direction to the winding direction of the cleaning member.Type: ApplicationFiled: June 1, 2007Publication date: December 6, 2007Inventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Tayoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
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Publication number: 20070020543Abstract: The toner of the present invention, comprising a colored resin particle and an external additive, wherein said external additive contains a silica fine particle (A) having a Dv50/Dv10 of 1.8 or more, in which Dv10 represents a particle diameter at which a volume cumulative total from small particle diameter side is 10% and Dv50 represents a particle diameter at which the mentioned volume cumulative total is 50%, a volume average particle diameter in the range from 0.1 to 1.0?, and a sphericity in the range from 1 to 1.3. The toner of the present invention cause less fog, and excellent resolution on the printed image, excellent in cleaning property, and cause less filming.Type: ApplicationFiled: June 11, 2004Publication date: January 25, 2007Applicant: ZEON CORPORATIONInventor: Hiroshi Nakatani
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Publication number: 20060241145Abstract: The present invention provides a piperidine derivative having antagonistic action for tachykinin receptors and the like, a crystal thereof, and an agent for the prophylaxis or treatment of diseases including lower urinary tract disease and the like, which contains the derivative. Specifically, the present invention provides an optically active compound represented by the formula (I): wherein each symbol is as defined in the specification, and a salt thereof.Type: ApplicationFiled: April 20, 2006Publication date: October 26, 2006Inventors: Yoshinori Ikeura, Tadatoshi Hashimoto, Junya Shirai, Yoshikawa Takeshi, Hiroshi Nakatani, Mitsuhisa Yamano, Masahiro Mizuno, Hiroyuki Irie
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Patent number: 6893310Abstract: A spark plug gap adjustment system is provided which is designed to adjust a spark gap between a ground electrode and a center electrode installed in a spark plug to a target value. The system determines the position of the ground electrode in a given coordinate system to calculate a target distance required to move an end of the ground electrode toward an end of the center electrode for bringing the spark gap into agreement with the target value and moves the ground electrode under pressure by the target distance to define a desired spark gap. This achieves the spark gap adjustment precisely at high speeds.Type: GrantFiled: September 17, 2001Date of Patent: May 17, 2005Assignee: Denso CorporationInventor: Hiroshi Nakatani
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Patent number: 6802223Abstract: The invention consists in a capacitative electromagnetic flow meter in which excitation is performed at a frequency above the commercially available frequency and having a characteristic correction filter that corrects the gain frequency characteristic of the exciting current such that the exciting flux waveform has a flat section. In the detection unit, the value of the electrostatic capacitance between the face electrodes 4A, 4B and guard electrodes 5A, 5B is made smaller than the value of the electrostatic capacitance between the detecting face electrodes 4A, 4B and the fluid to be measured. The exciting coils are fixed to a cylindrical yoke, being electrostatically screened by coil fixing plates. Fixing by an earth ring is performed with this cylindrical yoke and the two ends of the measurement tube being symmetrical with respect to the tube axis and electrode axes. In addition, fixing is effected by filling the entire interior of the detection unit with epoxy resin.Type: GrantFiled: September 25, 2003Date of Patent: October 12, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Nakatani, Tatsuya Kimura, Yoshito Sameda, Takuya Iijima, Takashi Higuchi, Makoto Futoo, Hiroaki Nojiri, Kiyonori Nishikawa, Toshihiko Okamoto
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Publication number: 20040123670Abstract: The invention consists in a capacitative electromagnetic flow meter in which excitation is performed at a frequency above the commercially available frequency and having a characteristic correction filter that corrects the gain frequency characteristic of the exciting current such that the exciting flux waveform has a flat section. In the detection unit, the value of the electrostatic capacitance between the face electrodes 4A, 4B and guard electrodes 5A, 5B is made smaller than the value of the electrostatic capacitance between the detecting face electrodes 4A, 4B and the fluid to be measured. The exciting coils are fixed to a cylindrical yoke, being electrostatically screened by coil fixing plates. Fixing by an earth ring is performed with this cylindrical yoke and the two ends of the measurement tube being symmetrical with respect to the tube axis and electrode axes. In addition, fixing is effected by filling the entire interior of the detection unit with epoxy resin.Type: ApplicationFiled: September 25, 2003Publication date: July 1, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroshi Nakatani, Tatsuya Kimura, Yoshito Sameda, Takuya Iijima, Takashi Higuchi, Makoto Futoo, Hiroaki Nojiri, Kiyonori Nishikawa, Toshihiko Okamoto