Patents by Inventor Hisashi Sasaki
Hisashi Sasaki 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: 11943243Abstract: In an anomaly detection method that determines whether each frame in observation data constituted by a collection of frames sent and received over a communication network system is anomalous, a difference between a data distribution of a feature amount extracted from the frame in the observation data and a data distribution for a collection of frames sent and received over the communication network system, obtained at a different timing from the observation data, is calculated. A frame having a feature amount for which the difference is predetermined value or higher is determined to be an anomalous frame. An anomaly contribution level of feature amounts extracted from the frame determined to be an anomalous frame is calculated, and an anomalous payload part, which is at least one part of the payload corresponding to the feature amount for which the anomaly contribution level is at least the predetermined value, is output.Type: GrantFiled: May 17, 2021Date of Patent: March 26, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Takamitsu Sasaki, Tomoyuki Haga, Daiki Tanaka, Makoto Yamada, Hisashi Kashima, Takeshi Kishikawa
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Patent number: 11931847Abstract: A magnet chuck has a piston assembly including a tube shaped permanent magnet and a core yoke able to move on the interior of a cylinder tube. The permanent magnet is provided on the outer periphery of the core yoke, is magnetized in the radial direction, and a magnetic sensor is attached to the side surface of the cylinder tube.Type: GrantFiled: March 27, 2019Date of Patent: March 19, 2024Assignee: SMC CORPORATIONInventors: Hisashi Yajima, Motohiro Sato, Tsuyoshi Sasaki, Koji Hara, Kouichirou Kanda
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Publication number: 20230116994Abstract: A metal recovery method includes crushing a photovoltaic module or a photovoltaic sheet-like structure to form debris; and sorting the debris, wherein the photovoltaic sheet-like structure is obtained by removing a glass substrate and a frame member from the photovoltaic module, and includes at least a photovoltaic cell, a metal pattern wired from the photovoltaic cell, and an encapsulant to encapsulate the photovoltaic cell and the metal pattern.Type: ApplicationFiled: January 13, 2021Publication date: April 20, 2023Applicant: DOWA ECO SYSTEM CO., LTD.Inventors: Shota TAHATA, Hisashi SASAKI, Ryoei WATANABE
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Patent number: 9234868Abstract: An NOX sensor control apparatus (10) is connected to an NOX sensor (100) which includes a first pumping cell (110) and a second pumping cell (130) through which a second pumping current flows corresponding to an NOX concentration in a to-be-measured gas. The NOX sensor control apparatus (10) includes a first pumping current detection unit; a second pumping current detection unit; an oxygen concentration calculation unit (60) for calculating oxygen concentration on the basis of the first pumping current and corrected in accordance with the pressure of the to-be-measured gas, oxygen (first) pressure correction information set for the NOX sensor, and pressure information; and an NOX concentration calculation unit (60) for calculating NOX concentration on the basis of the first pumping current and corrected in accordance with pressure of the to-be-measured gas, NOX (second) pressure correction information set for the NOX sensor, and pressure information.Type: GrantFiled: March 4, 2009Date of Patent: January 12, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Yasuhiro Ishiguro, Takayuki Sumi, Akihiro Kobayashi, Hisashi Sasaki, Koji Shiotani
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Patent number: 8906213Abstract: In a NOx sensor control apparatus (1), a NOx sensor includes a heater (164), and an oxygen concentration detection cell (130), a first pumping cell (110) and a second pumping cell (120) which are arranged sequentially in the axis O direction. The NOx sensor control apparatus 1 includes a first impedance detection means (59a, 60) which detects the first impedance of the first cell (oxygen concentration detection cell), a heater control means (60) which performs an energization control of a heater such that the first impedance becomes a target value, a second impedance detection means (59b, 60) which detects the second impedance of the second cell (second pumping cell), and an output correction means (60) which corrects an output of at least the third cell (first pumping cell) based on the deviation between the first impedance and the second impedance.Type: GrantFiled: February 3, 2012Date of Patent: December 9, 2014Assignee: NGK Spark Plug Co., Ltd.Inventor: Hisashi Sasaki
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Patent number: 8512536Abstract: A NOx sensor includes a sensor element equipped with first and second pumping cells to define first and second measurement chambers. The first pumping cell exerts an oxygen pumping action against the first measurement chamber to adjust the oxygen concentration in the gas under measurement within the first measurement chamber to a given level. The second pumping cell exerts an oxygen pumping action against the second measurement chamber to produce a pumping cell current according to the NOx concentration in the gas under measurement. When the moisture content of the gas under measurement changes from 2 vol % to 8 vol %, the NOx sensor allows a variation of NOx concentration detection value based on the pumping cell current in such a manner that the NOx concentration detection value reaches a transient peak value of 20 ppm or smaller and converges to ±5 ppm of a reference value within 5 seconds.Type: GrantFiled: January 23, 2009Date of Patent: August 20, 2013Assignee: NGK Spark Plug Co., Ltd.Inventors: Kenji Kato, Hisashi Sasaki, Koji Shiotani
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Patent number: 8449759Abstract: A gas sensor control apparatus including internal resistance detection means for detecting an internal resistance value of one of cells of a gas sensor, concentration detection means for detecting a concentration value of a specific gas component in a gas to be measured and outputting the detected concentration value, heater current supply control means for controlling a current to be supplied to a heater of the gas sensor such that the detected internal resistance value becomes a target value, determination means for determining whether or not the detected internal resistance value is within a permissible range including the target value, nullification information generation means for generating nullification information to nullify the detected concentration value, when it is determined that the target value is out of the permissible range, and nullification information output means for outputting the nullification information to an external device connected to the gas sensor control apparatus.Type: GrantFiled: January 11, 2011Date of Patent: May 28, 2013Assignee: NGK Spark Plug Co., Ltd.Inventor: Hisashi Sasaki
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Patent number: 8404101Abstract: A gas sensor control apparatus including internal resistance detection means for detecting an internal resistance value of one of cells of a gas sensor, concentration detection means for detecting a concentration value of a specific gas component in a gas to be measured and outputting the detected concentration value, heater current supply control means for controlling a current to be supplied to a heater of the gas sensor such that the detected internal resistance value becomes a target value, determination means for determining whether or not the detected internal resistance value is within a permissible range including the target value, and nullification setting means for setting the detected concentration value to a predetermined nullification concentration value to nullify the detected concentration value, when it is determined that the target value is out of the permissible range.Type: GrantFiled: January 11, 2011Date of Patent: March 26, 2013Assignee: NGK Spark Plug Co., Ltd.Inventor: Hisashi Sasaki
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Patent number: 8266953Abstract: A method and apparatus for detecting an abnormality of a nitrogen oxide purifying catalyst using an NOx sensor, the method including: calculating a detection integrated value by integrating corresponding values corresponding to the NOx sensor output signal obtained until a first predetermined detection period has elapsed after the NOx sensor begins to generate an output signal and subtracting a variation integrated value. The variation integrated value is calculated by integrating corresponding values obtained until a predetermined second detection period has elapsed after the NOx sensor beings to generate an output signal when driven in a gas atmosphere having a constant nitrogen oxide concentration.Type: GrantFiled: October 28, 2009Date of Patent: September 18, 2012Assignee: NGK Spark Plug Co., Ltd.Inventors: Hisashi Sasaki, Kenji Kato, Koji Shiotani, Takeshi Kawai
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Publication number: 20120199478Abstract: In a NOx sensor control apparatus (1), a NOx sensor includes a heater (164), and an oxygen concentration detection cell (130), a first pumping cell (110) and a second pumping cell (120) which are arranged sequentially in the axis O direction. The NOx sensor control apparatus 1 includes a first impedance detection means (59a, 60) which detects the first impedance of the first cell (oxygen concentration detection cell), a heater control means (60) which performs an energization control of a heater such that the first impedance becomes a target value, a second impedance detection means (59b, 60) which detects the second impedance of the second cell (second pumping cell), and an output correction means (60) which corrects an output of at least the third cell (first pumping cell) based on the deviation between the first impedance and the second impedance.Type: ApplicationFiled: February 3, 2012Publication date: August 9, 2012Applicant: NGK SPARK PLUG CO., LTD.Inventor: Hisashi SASAKI
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Patent number: 8159433Abstract: A liquid crystal drive apparatus includes: a storage unit storing an enhancement correction coefficient having (1/2n)×m below a decimal point where n is 3 or 4, and m is an integer which is at least 0 and less than 2n; a frame memory holding digital image information of a second frame located one frame before a first frame; a first computation unit computing a difference between digital image information of the first frame and digital image information of the second frame; a second computation unit computing enhancement image information for conducting enhancement display of an image on a liquid crystal panel on the basis of the difference and the enhancement correction coefficient; a third computation unit computing addition information by adding the digital image information of the second frame to the enhancement image information; and a drive signal generation unit generating a drive signal on the basis of the addition information to drive the liquid crystal panel.Type: GrantFiled: August 13, 2008Date of Patent: April 17, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Aira Hotta, Haruhiko Okumura, Hironori Minamizaki, Hisashi Sasaki
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Patent number: 8118985Abstract: A gas sensor (200) has a gas sensor element (10) including a first measurement chamber (16); a first pumping cell (11) having a first interior pump electrode (11c) and its counterpart electrode (11b); a second measurement chamber (18); a second pumping cell (13) that has a second interior pump electrode (13b); and a beater (50). The heater (50) has a lead section (50a); a first resistance portion (50bx) having a higher resistance than the lead portion (50a); and a main heating portion (50k) having a second resistance portion (50by) having a higher resistance than the first resistance portion (50bx) disposed at a leading end side in a longitudinal direction relative to a leading end of the first resistance portion (50bx). The second interior pump electrode (13b) is located within the first resistance portion (50bx) in the longitudinal direction.Type: GrantFiled: April 2, 2009Date of Patent: February 21, 2012Assignee: NGK Spark Plug Co., Ltd.Inventors: Seiji Ohya, Tomohiro Wakazono, Takashi Nakao, Hisashi Sasaki, Koji Shiotani
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Publication number: 20110168573Abstract: A gas sensor control apparatus including internal resistance detection means for detecting an internal resistance value of one of cells of a gas sensor, concentration detection means for detecting a concentration value of a specific gas component in a gas to be measured and outputting the detected concentration value, heater current supply control means for controlling a current to be supplied to a heater of the gas sensor such that the detected internal resistance value becomes a target value, determination means for determining whether or not the detected internal resistance value is within a permissible range including the target value, nullification information generation means for generating nullification information to nullify the detected concentration value, when it is determined that the target value is out of the permissible range, and nullification information output means for outputting the nullification information to an external device connected to the gas sensor control apparatus.Type: ApplicationFiled: January 11, 2011Publication date: July 14, 2011Applicant: NGK SPARK PLUG CO., LTD.Inventor: Hisashi SASAKI
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Publication number: 20110168574Abstract: A gas sensor control apparatus including internal resistance detection means for detecting an internal resistance value of one of cells of a gas sensor, concentration detection means for detecting a concentration value of a specific gas component in a gas to be measured and outputting the detected concentration value, heater current supply control means for controlling a current to be supplied to a heater of the gas sensor such that the detected internal resistance value becomes a target value, determination means for determining whether or not the detected internal resistance value is within a permissible range including the target value, and nullification setting means for setting the detected concentration value to a predetermined nullification concentration value to nullify the detected concentration value, when it is determined that the target value is out of the permissible range.Type: ApplicationFiled: January 11, 2011Publication date: July 14, 2011Applicant: NGK SPARK PLUG CO., LTD.Inventor: Hisashi SASAKI
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Publication number: 20110141134Abstract: In one embodiment, an encoder has a first color sorting unit, a second color sorting unit and an encoding unit. The first color sorting unit divides along a first color axis, each of pixel blocks each having an inputted plurality of pixels, into m regions where m is an integer of two or more, to classify the plurality of pixels in each of the pixel blocks into the m regions, and to calculate a minimum value, a maximum value and an average value of pixel values belonging to each of the m regions for each of the m regions. The second color sorting unit divides along a second axis selected based on a calculation of the first color sorting unit, each of the m regions into n sub-regions where n is an integer of two or more, for each of the m regions, to classify the plurality of pixels in the pixel block into (m×n) sub-regions, and to calculate coded information corresponding to representative colors allocated to pixel locations in an original pixel block and bitmap information of the representative colors.Type: ApplicationFiled: July 7, 2010Publication date: June 16, 2011Applicant: Kabushiki Kaisha ToshibaInventor: Hisashi Sasaki
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Patent number: 7903887Abstract: An image processing circuit has a color information converter configured to convert image data including a plurality of color information into luminance data and color difference data, an activity detector whether amount of activity predetermined according to differences between the luminance data in a plurality of pixels in each of pixel blocks and differences between the color difference data in the plurality of pixels exceeds a predetermined first threshold value for each pixel block including a plurality of pixels adjacent to each other, and a encoding unit configured to perform a first encoding process by generating m (m is an integer of three or larger) representative values corresponding to the luminance data and the color difference data in the plurality of pixels in the pixel block that the activity detector determines to exceed the first threshold value, and perform a second encoding process by generating n (n is an integer of two or more and the integer larger than m) representative values correspoType: GrantFiled: May 17, 2007Date of Patent: March 8, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Hisashi Sasaki, Hironori Minamizaki, Haruhiko Okumura
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Patent number: 7872480Abstract: A gas sensor control apparatus for controlling a gas sensor includes a resistance detection unit and a heater control unit. The resistance detection unit detects a resistance of an object cell of the gas sensor. When the resistance of the object cell is lower than a predetermined threshold, the heater control unit controls energization of a heater such that the resistance detected by the resistance detection unit is a first predetermined resistance. Subsequently, after elapse of a predetermined time, the heater control unit further controls energization of the heater in such a manner that the resistance detected by the resistance detection unit is a second predetermined resistance of a resistance value that is higher than that of the first predetermined resistance.Type: GrantFiled: August 25, 2008Date of Patent: January 18, 2011Assignee: NGK Spark Plug Co., Ltd.Inventors: Kenji Kato, Hisashi Sasaki, Koji Shiotani
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Publication number: 20100101314Abstract: A method and apparatus for detecting an abnormality of a nitrogen oxide purifying catalyst using an NOx sensor, the method including: calculating a detection integrated value by integrating corresponding values corresponding to the NOx sensor output signal obtained until a first predetermined detection period has elapsed after the NOx sensor begins to generate an output signal and subtracting a variation integrated value. The variation integrated value is calculated by integrating corresponding values obtained until a predetermined second detection period has elapsed after the NOx sensor beings to generate an output signal when driven in a gas atmosphere having a constant nitrogen oxide concentration.Type: ApplicationFiled: October 28, 2009Publication date: April 29, 2010Applicant: NGK Spark Plug Co., Ltd.Inventors: Hisashi SASAKI, Kenji KATO, Koji SHIOTANI, Takeshi KAWAI
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Patent number: 7637148Abstract: A liquid state detecting sensor includes: a state detecting element including a heating resistor; an energization unit; a first output acquiring unit; a reference acquiring unit; a first calculating unit; a state detecting unit; a second output acquiring unit; a second calculating unit; an excess-temperature-rise determining unit; and an energization terminating unit. The energization termination unit terminates energizing of the heating resistor by the energization unit before the end of a detection time period in response to a determination by the excessive-temperature-rise determining unit that an excessive temperature rise has occurred in the state detecting element.Type: GrantFiled: January 14, 2008Date of Patent: December 29, 2009Assignee: NGK Spark Plug Co., Ltd.Inventors: Takeo Sasanuma, Yoshikuni Sato, Takashi Yamomoto, Hisashi Sasaki
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Patent number: 7600424Abstract: Capacitive liquid condition sensing apparatus includes a pair of a 1-1 electrode and a 1-2 electrode arranged to form a first capacitance; a pair of a 2-1 electrode and a 2-2 electrode arranged to form a second capacitance; a circuit board formed with a sensing circuit to sense the liquid condition such as a liquid level in accordance with the first and second capacitances; and 1-1, 1-2, 2-1 and 2-2 conductive paths connecting the 1-1, 1-2, 2-1 and 2-2 electrodes, respectively, to the sensing circuit, and including 1-1, 1-2, 2-1 and 2-2 conductive segments, respectively. The 1-1, 1-2, 2-1 and 2-2 conductive segments are arranged in a row, and extend side by side. The 1-1, 1-2, 2-1 and 2-2 conductive segments are arranged so that a first parasitic capacitance formed between the 1-1 conductive segment and the 1-2 conductive segment is equal to a second parasitic capacitance formed between the 2-1 conductive segment and the 2-2 conductive segment.Type: GrantFiled: July 3, 2006Date of Patent: October 13, 2009Assignee: NGK Spark Plug Co., Ltd.Inventors: Hisashi Sasaki, Shinichi Hayashi