Patents by Inventor Kouji Saitou
Kouji Saitou 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: 20240061620Abstract: A memory system includes a non-volatile memory and a controller that includes a first memory and is configured to write log data to the first memory, including a history of commands for controlling the memory system. An information processing system includes the memory system and an information processing device configured to store an expected value and to transmit a signal that instructs the memory system to stop when a value of the log data transmitted from the memory system does not match the expected value. The expected value and the transmitted value are determined based on the log data of the memory system.Type: ApplicationFiled: November 3, 2023Publication date: February 22, 2024Inventors: Takeshi NAKANO, Akihiko ISHIHARA, Shingo TANIMOTO, Yasuaki NAKAZATO, Shinji MAEDA, Minoru UCHIDA, Kenji SAKAUE, Koichi INOUE, Yosuke KINO, Takumi SASAKI, Mikio TAKASUGI, Kouji SAITOU, Hironori NAGAI, Shinya TAKEDA, Akihito TOUHATA, Masaru OGAWA, Akira AOKI
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Patent number: 11853599Abstract: A memory system includes a non-volatile memory and a controller that includes a first memory and is configured to write log data to the first memory, including a history of commands for controlling the memory system. An information processing system includes the memory system and an information processing device configured to store an expected value and to transmit a signal that instructs the memory system to stop when a value of the log data transmitted from the memory system does not match the expected value. The expected value and the transmitted value are determined based on the log data of the memory system.Type: GrantFiled: February 25, 2021Date of Patent: December 26, 2023Assignee: Kioxia CorporationInventors: Takeshi Nakano, Akihiko Ishihara, Shingo Tanimoto, Yasuaki Nakazato, Shinji Maeda, Minoru Uchida, Kenji Sakaue, Koichi Inoue, Yosuke Kino, Takumi Sasaki, Mikio Takasugi, Kouji Saitou, Hironori Nagai, Shinya Takeda, Akihito Touhata, Masaru Ogawa, Akira Aoki
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Publication number: 20210303214Abstract: A memory system includes a non-volatile memory and a controller that includes a first memory and is configured to write log data to the first memory, including a history of commands for controlling the memory system. An information processing system includes the memory system and an information processing device configured to store an expected value and to transmit a signal that instructs the memory system to stop when a value of the log data transmitted from the memory system does not match the expected value. The expected value and the transmitted value are determined based on the log data of the memory system.Type: ApplicationFiled: February 25, 2021Publication date: September 30, 2021Inventors: Takeshi NAKANO, Akihiko ISHIHARA, Shingo TANIMOTO, Yasuaki NAKAZATO, Shinji MAEDA, Minoru UCHIDA, Kenji SAKAUE, Koichi INOUE, Yosuke KINO, Takumi SASAKI, Mikio TAKASUGI, Kouji SAITOU, Hironori NAGAI, Shinya TAKEDA, Akihito TOUHATA, Masaru OGAWA, Akira AOKI
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Patent number: 10612651Abstract: In a vehicle equipped with a torque converter 4 having a lock-up clutch (3), learning control for obtaining a learning value (L_n) on the basis of meet-point information, with which the lock-up clutch (3) initiates torque transmission, is carried out. When the lock-up clutch (3) experiences a transition to an engaged state during travel, a meet-point learning control unit (12c) calculates an LU transmission torque estimate on the basis of the difference between the engine torque (engine torque signal value Te) and the torque converter transmission torque (?·Ne2). Excess clutch capacity is detected when the LU transmission torque estimate is greater than an excess capacity determination transmission torque threshold within a prescribed amount of time after an initial pressure (P_n) based on the learning value (L_n) is instructed. When excess clutch capacity is detected, a learning value correction that reduces the learning value (L_n) is carried out.Type: GrantFiled: August 31, 2016Date of Patent: April 7, 2020Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Toshimitsu Araki, Hideshi Wakayama, Kouji Saitou, Seiji Kasahara, Tetsuya Izumi
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Patent number: 10371256Abstract: In a vehicle on which a torque converter having a lock-up clutch is mounted between an engine and a transmission, a meet point learning controller is provided to perform learning control for obtaining a learning value based on information on a meet point at which the lock-up clutch starts torque transmission. The meet point learning controller estimates a LU transmission torque based on a difference between an engine torque signal value and a torque converter transmission torque when the lock-up clutch moves from a non-engaged state to an engaged state during traveling of the vehicle, and uses, as the meet point information, a meet point detection pressure at a time when the LU transmission torque estimated value is determined to have entered an upward trend.Type: GrantFiled: August 12, 2016Date of Patent: August 6, 2019Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Toshimitsu Araki, Seiji Kasahara, Hideshi Wakayama, Kouji Saitou, Hiroyasu Tanaka
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Publication number: 20180245688Abstract: In a vehicle on which a torque converter having a lock-up clutch is mounted between an engine and a transmission, a meet point learning controller is provided to perform learning control for obtaining a learning value based on information on a meet point at which the lock-up clutch starts torque transmission. The meet point learning controller estimates a LU transmission torque based on a difference between an engine torque signal value and a torque converter transmission torque when the lock-up clutch moves from a non-engaged state to an engaged state during traveling of the vehicle, and uses, as the meet point information, a meet point detection pressure at a time when the LU transmission torque estimated value is determined to have entered an upward trend.Type: ApplicationFiled: August 12, 2016Publication date: August 30, 2018Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Toshimitsu ARAKI, Seiji KASAHARA, Hideshi WAKAYAMA, Kouji SAITOU, Hiroyasu TANAKA
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Publication number: 20180216729Abstract: In a vehicle equipped with a torque converter 4 having a lock-up clutch (3), learning control for obtaining a learning value (L_n) on the basis of meet-point information, with which the lock-up clutch (3) initiates torque transmission, is carried out. When the lock-up clutch (3) experiences a transition to an engaged state during travel, a meet-point learning control unit (12c) calculates an LU transmission torque estimate on the basis of the difference between the engine torque (engine torque signal value Te) and the torque converter transmission torque (?·Ne2). Excess clutch capacity is detected when the LU transmission torque estimate is greater than an excess capacity determination transmission torque threshold within a prescribed amount of time after an initial pressure (P_n) based on the learning value (L_n) is instructed. When excess clutch capacity is detected, a learning value correction that reduces the learning value (L_n) is carried out.Type: ApplicationFiled: August 31, 2016Publication date: August 2, 2018Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Toshimitsu ARAKI, Hideshi WAKAYAMA, Kouji SAITOU, Seiji KASAHARA, Tetsuya IZUMI
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Patent number: 9814859Abstract: A vehicle seat includes: plural airbags for massaging that are provided at least at an interior of a seatback, and that inflate to push against portions of a body of a seated vehicle occupant; an air supplying/discharging device that has a forced-air source that feeds air under pressure, and a control valve that supplies and discharges the air, that has been fed under pressure from the forced-air source, to the plural airbags respectively, so that the air supplying/discharging device inflates and contracts the plural airbags individually; and an electronic control unit that, in a state in which the forced-air source is operated, repeats, at a uniform cycle, supplying and discharging of the air by switching of the control valve, to generate awakening vibrations at least at one airbag among the plural airbags.Type: GrantFiled: July 14, 2016Date of Patent: November 14, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiko Onuma, Kouji Saitou
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Publication number: 20170028163Abstract: A vehicle seat includes: plural airbags for massaging that are provided at least at an interior of a seatback, and that inflate to push against portions of a body of a seated vehicle occupant; an air supplying/discharging device that has a forced-air source that feeds air under pressure, and a control valve that supplies and discharges the air, that has been fed under pressure from the forced-air source, to the plural airbags respectively, so that the air supplying/discharging device inflates and contracts the plural airbags individually; and an electronic control unit that, in a state in which the forced-air source is operated, repeats, at a uniform cycle, supplying and discharging of the air by switching of the control valve, to generate awakening vibrations at least at one airbag among the plural airbags.Type: ApplicationFiled: July 14, 2016Publication date: February 2, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiko ONUMA, Kouji SAITOU
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Patent number: 9523400Abstract: First temporary capacity reduction control that when acceleration ON is judged during coasting lock-up, brings lock-up clutch (20) into slip state by decreasing torque transmission capacity of lock-up clutch and subsequently returns lock-up clutch to lock-up state by increasing torque transmission capacity is executed. Control unit performing second temporary capacity reduction control that when return of accelerator pedal depression is judged during the progress of returning to lock-up state, decreases torque transmission capacity again and subsequently returns lock-up clutch to lock-up state by increasing torque transmission capacity is provided. In second temporary capacity reduction control, torque transmission capacity is decreased with predetermined torque transmission capacity by which lock-up clutch is not fully disengaged being lower limit value.Type: GrantFiled: October 17, 2014Date of Patent: December 20, 2016Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Yasuhiro Endo, Kouji Saitou, Kenji Nakashima, Akito Suzuki, Kyounggon Choi
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Publication number: 20160230822Abstract: First temporary capacity reduction control that when acceleration ON is judged during coasting lock-up, brings lock-up clutch (20) into slip state by decreasing torque transmission capacity of lock-up clutch and subsequently returns lock-up clutch to lock-up state by increasing torque transmission capacity is executed. Control unit performing second temporary capacity reduction control that when return of accelerator pedal depression is judged during the progress of returning to lock-up state, decreases torque transmission capacity again and subsequently returns lock-up clutch to lock-up state by increasing torque transmission capacity is provided. In second temporary capacity reduction control, torque transmission capacity is decreased with predetermined torque transmission capacity by which lock-up clutch is not fully disengaged being lower limit value.Type: ApplicationFiled: October 17, 2014Publication date: August 11, 2016Applicants: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Yasuhiro ENDO, Kouji SAITOU, Kenji NAKASHIMA, Akito SUZUKI, Kyounggon CHOI
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Publication number: 20160020787Abstract: According to one embodiment, a parallel processor performs the row processes in parallel in a LDPC decode while performing the column processes in parallel in the LDPC decode, and a control circuit alternately repeats the parallel processes of the row process and the parallel processes of the column process as many times as the number of rows and columns in a check matrix and divides the parallel rows for the row process when the LDPC decode is started.Type: ApplicationFiled: November 3, 2014Publication date: January 21, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Tatsuyuki ISHIKAWA, Kazuhiro ICHIKAWA, Toshihiko KITAZUME, Kenji SAKAUE, Kouji SAITOU
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Publication number: 20150254130Abstract: According to an embodiment, an error correction decoder includes a first calculation circuit and a second calculation circuit. The first calculation circuit and the second calculation circuit perform the column processing based on the second reliability information corresponding to variable nodes belonging to each of one or more valid blocks arranged in a first row group and the row processing based on the first reliability information corresponding to variable nodes belonging to one or more valid blocks arranged in a second row group whose processing order is later than that of the first row group in parallel.Type: ApplicationFiled: March 7, 2014Publication date: September 10, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Kenji SAKAUE, Kouji Saitou, Tatsuyuki Ishikawa, Kazuhiro Ichikawa, Naoaki Kokubun, Hironori Uchikawa
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Publication number: 20150227419Abstract: According to one embodiment, an error correction decoder includes a selecting section, calculating section, check section, and updating section. The selecting section selects data used for matrix processing applied to a process target row from LLR data stored in the first memory section based on a check matrix, and stores the data in a second memory section. The calculating section executes the matrix processing based on the data stored in the second memory section, and writes updated data back to the second memory section. The check section checks a parity based on a calculating result of the calculating section. The updating section updates the LLR data of the first memory section based on the updated data of the second memory section.Type: ApplicationFiled: June 19, 2014Publication date: August 13, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Kenji Sakaue, Kouji Saitou, Tatsuyuki Ishikawa, Kazuhiro Ichikawa, Naoaki Kokubun, Hironori Uchikawa
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Publication number: 20110187687Abstract: A display apparatus (10) of the present invention is a display apparatus (10) including a display panel (11) including optical sensors (2); an illuminance detector section (14) for measuring, on the basis of an output from the optical sensor (2), an illuminance in a display area corresponding to the optical sensor (2); and a display luminance correcting section (19) for correcting, on the basis of the illuminances measured by the illuminance detector section (14), a display luminance in at least one of the display areas. The arrangement allows the display apparatus (10) to correct a luminance of a display image most appropriately for a user.Type: ApplicationFiled: October 6, 2009Publication date: August 4, 2011Inventors: Kouji Saitou, Akizumi Fujioka
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Patent number: 7769518Abstract: A control device of a lock-up clutch of a torque converter interposed between a transmission and engine used with a vehicle, is disclosed. The control device has a sensor which detects an input rotation speed to the torque converter, a sensor which detects an output rotation speed from the torque converter, a differential pressure control device which controls the differential pressure applied to the lock-up clutch, and a controller which sets a target slip rotation speed of the torque converter; calculates a real slip rotation speed which is a difference between the detected input rotation speed and the detected output rotation speed; and performs feedback control to determine the differential pressure applied to the lock-up clutch so that the real slip rotation speed coincides with the target slip rotation speed.Type: GrantFiled: November 1, 2005Date of Patent: August 3, 2010Assignee: Jatco LtdInventors: Satoshi Segawa, Hiroshi Sekiya, Tatsuya Imamura, Koji Dohi, Kouji Saitou
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Patent number: 7769517Abstract: A lock-up clutch control apparatus for controlling a lock-up clutch (6) provided in a torque converter (5) installed between an engine (3) and a transmission (4), is disclosed. The lock-up clutch control apparatus has a differential pressure generator (7,8) which engages, causes a slip of or disengages the lock-up clutch by adjusting the differential pressure supplied to the lock-up clutch (6); a sensor (11/15) for detecting a rotational speed of the engine; a sensor (16) for detecting an input rotational speed to the transmission; and a controller (1). The controller (1) conducts proportional integration control by using a command signal to the differential pressure generator (7,8), so that an actual slip rotational speed, which is the difference between the engine rotational speed (Np) and input rotational speed (Ni) to the transmission, becomes a target slip rotational speed (Nt).Type: GrantFiled: October 21, 2005Date of Patent: August 3, 2010Assignee: JATCO LtdInventors: Satoshi Segawa, Hiroshi Sekiya, Tatsuya Imamura, Koji Dohi, Kouji Saitou, Masayuki Kobayashi, Masayoshi Nakasaki
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Patent number: 7385580Abstract: A liquid crystal display device includes a liquid crystal display panel, a row electrode drive circuit (scanning signal line drive circuit), a column electrode drive circuit (source signal line drive circuit), a power supply circuit, a common electrode drive circuit, and a memory (storage means). The memory stores the respective optimum applied voltages for the source electrode corresponding to display modes of the liquid crystal display device, a reflective mode and a transmissive mode. With the above arrangement, in the case where the display mode is switched among a plurality of display modes, the above active matrix display device can reset an optimum applied voltage for a common electrode or a source electrode in accordance with each of the display modes to suppress the occurrence of flickers, thus allowing the display device to maintain a high quality of display all the time.Type: GrantFiled: September 12, 2003Date of Patent: June 10, 2008Assignee: Sharp Kabushiki KaishaInventors: Kouji Saitou, Toshihiro Yanagi, Taketoshi Nakano
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Patent number: 7361120Abstract: A lock-up clutch control device which controls a lock-up clutch (6) provided in a torque converter (5) interposed between an engine (3) and a transmission (4) used with a vehicle, is disclosed. The lock-up clutch control device has a differential pressure generating device (7,8), a vehicle speed sensor (13), a throttle valve opening sensor (14), an transmission input shaft rotation speed sensor (16), engine torque detection means (2), and a controller (1). The controller (1) determines, based on the detected vehicle speed (VSP) and the detected throttle valve opening (TVO), whether or not a control region of a torque converter is a converter region wherein control is performed to disengage the lock-up clutch.Type: GrantFiled: September 30, 2005Date of Patent: April 22, 2008Assignee: Jatco LtdInventors: Toshiji Iida, Hiroshi Sekiya, Morimasa Yamawaki, Tatsuya Imamura, Koji Dohi, Kouji Saitou
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Patent number: 7282009Abstract: A lock-up clutch control device, which controls a lock-up clutch (6) installed in a torque converter (5) interposed between an engine (3) and a transmission (4) used with a vehicle, is disclosed. The lock-up clutch control device has a differential pressure generating device (7,8) which engages or disengages the lock-up clutch by adjusting a differential pressure supplied to the lock-up clutch, a sensor (13) which detects a vehicle speed, and a controller.Type: GrantFiled: October 3, 2005Date of Patent: October 16, 2007Assignee: Jatco LtdInventors: Hiroshi Sekiya, Tatsuya Imamura, Koji Dohi, Kouji Saitou