Patents by Inventor Koji Fukui
Koji Fukui 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: 20240101122Abstract: A driver pre-abnormal detection apparatus includes: sensors to acquire travel environment information of a vehicle; an in-vehicle camera that detects the driver's sightline; and a controller configured to detect a driver's pre-abnormal state based on the travel environment information and the driver's sightline. The controller identifies a visual recognition required point to be visually recognized by the driver based on the travel environment information, determines whether the driver has visually recognized the visual recognition required point based on the driver's sightline, and detects the driver's pre-abnormal state based on a fact that the driver has not visually recognized the visual recognition required point.Type: ApplicationFiled: March 27, 2023Publication date: March 28, 2024Applicant: Mazda Motor CorporationInventors: Akiko FUKUI, Koji IWASE, Yohei IWASHITA
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Publication number: 20240104945Abstract: A driver state determination apparatus includes: an in-vehicle camera detecting a driver's sightline and head behavior; and a controller configured to determine the driver's state based on the driver's sightline and head behavior. When the driver is in an abnormal state based on the driver's sightline movement, the controller determines whether or not the driver's abnormal state a visual field impairment based on a change in each of a yaw angle and a pitch angle of the driver's head. When the abnormal state is the visual field impairment, the controller determines that the driver is aware of the visual field impairment when there is a direction in which the driver's sightline is not directed in the driver's field of view, and unaware of the visual field impairment when there is no direction in which the driver's sightline is not directed in the driver's field of view.Type: ApplicationFiled: March 27, 2023Publication date: March 28, 2024Applicant: Mazda Motor CorporationInventors: Akiko FUKUI, Yohei IWASHITA, Koji IWASE, Satoru TAKENAKA, Daiki IZUMOTO
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Publication number: 20240095850Abstract: A non-transitory computer-readable storage medium storing therein an information management program for causing a computer to execute a process comprises: receiving property information indicating a reliability of a post uploaded on the Internet and a digital signature generated from the property information; and storing the property information, to which identification information of the post and the digital signature are added, in a storage.Type: ApplicationFiled: June 12, 2023Publication date: March 21, 2024Applicants: Fujitsu Limited, KEIO UNIVERSITYInventors: Takuya SAKAMOTO, Kazuaki NIMURA, Ryuichi MATSUKURA, Koji NAKAMICHI, Masayuki FUKUI, Shigeya SUZUKI, Osamu NAKAMURA, Ryosuke ABE
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Patent number: 11937360Abstract: A high frequency heating apparatus (1A) includes the following components: a first electrode (11) that is flat; a plurality of flat second electrodes (12) that are flat; a high-frequency power supply (20); a matching unit (30); a controller (40); and an electric field regulator (50). The second electrodes (12) are placed opposite to the first electrode (11). The high-frequency power supply (20) applies a high-frequency voltage to the first electrode (11). The matching unit (30) is placed between the first electrode (11) and the high-frequency power supply (20), and is impedance-matched with the high-frequency power supply (20). The controller (40) controls the high-frequency power supply (20). The electric field regulator (50) individually adjusts the electric field strengths in a plurality of regions located between first electrode (11) and the second electrodes (12). This aspect can reduce uneven heating.Type: GrantFiled: August 1, 2019Date of Patent: March 19, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takashi Uno, Daisuke Hosokawa, Fumitaka Ogasawara, Mikio Fukui, Koji Yoshino, Yoshiharu Oomori
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Publication number: 20240085044Abstract: An air-conditioning apparatus includes a refrigerant circuit and a controller. The refrigerant circuit includes a main circuit and a bypass circuit. The bypass circuit is connected, by a pipe, to each of a plurality of parallel outdoor heat exchangers via a defrosting refrigerant pressure-reducing device, a defrosting flow passage switching device, and a backflow prevention device. The controller switches a flow passage for use in introduction of refrigerant using the defrosting flow passage switching device, to select one of the plurality of parallel outdoor heat exchangers as a defrosting target to be defrosted; and supplies defrosting refrigerant whose pressure is reduced by the defrosting refrigerant pressure-reducing device to the selected one of the plurality of parallel outdoor heat exchangers.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Inventors: Koji FUKUI, Kosuke TANAKA, Kazuya WATANABE
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Patent number: 11885518Abstract: An air-conditioning apparatus includes a refrigerant circuit, an air-conditioning load state detection unit, an operation-state detection unit, and a controller. The refrigerant circuit includes a main circuit and a bypass circuit. The air-conditioning apparatus has a simultaneous heating and defrosting operation mode. In the simultaneous heating and defrosting operation mode, the controller controls a compressor, a pressure reducing device, and a defrosting refrigerant pressure-reducing device such that control amounts of the compressor, the pressure reducing device, and the defrosting refrigerant pressure-reducing device reach respective normal-time control target values that are set based on an air-conditioning load state and an operation state.Type: GrantFiled: December 11, 2018Date of Patent: January 30, 2024Assignee: Mitsubishi Electric CorporationInventors: Koji Fukui, Kosuke Tanaka, Kazuya Watanabe
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Patent number: 11796212Abstract: An air-conditioning apparatus includes a controller configured to operate in a heating normal operation mode and a heating-defrosting operation mode. In a case of switching from the heating normal operation mode to the heating-defrosting operation mode, the controller makes a selection from an initial control mode 1, in which control is performed such that an initial frequency of the compressor is set to a predetermined maximum frequency and an initial opening degree of the flow control device is set to an opening degree lower than a predetermined maximum opening degree, and an initial control mode 2, in which control is performed such that the initial opening degree of the flow control device is set to the predetermined maximum opening degree and the initial frequency of the compressor is set to a frequency lower than the predetermined maximum frequency, to execute the heating-defrosting operation mode.Type: GrantFiled: April 11, 2019Date of Patent: October 24, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuya Watanabe, Shohei Ishimura, Koji Fukui, Kojiro Katayama, Kosuke Tanaka, Kazuki Okada, Kazushige Baba
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Publication number: 20220154966Abstract: An air-conditioning apparatus includes a controller configured to operate in a heating normal operation mode and a heating-defrosting operation mode. In a case of switching from the heating normal operation mode to the heating-defrosting operation mode, the controller makes a selection from an initial control mode 1, in which control is performed such that an initial frequency of the compressor is set to a predetermined maximum frequency and an initial opening degree of the flow control device is set to an opening degree lower than a predetermined maximum opening degree, and an initial control mode 2, in which control is performed such that the initial opening degree of the flow control device is set to the predetermined maximum opening degree and the initial frequency of the compressor is set to a frequency lower than the predetermined maximum frequency, to execute the heating-defrosting operation mode.Type: ApplicationFiled: April 11, 2019Publication date: May 19, 2022Applicant: Mitsubishi Electric CorporationInventors: Kazuya WATANABE, Shohei ISHIMURA, Koji FUKUI, Kojiro KATAYAMA, Kosuke TANAKA, Kazuki OKADA, Kazushige BABA
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Publication number: 20210348789Abstract: An air-conditioning apparatus includes a refrigerant circuit, an air-conditioning load state detection unit, an operation-state detection unit, and a controller. The refrigerant circuit includes a main circuit and a bypass circuit. The air-conditioning apparatus has a simultaneous heating and defrosting operation mode. In the simultaneous heating and defrosting operation mode, the controller controls a compressor, a pressure reducing device, and a defrosting refrigerant pressure-reducing device such that control amounts of the compressor, the pressure reducing device, and the defrosting refrigerant pressure-reducing device reach respective normal-time control target values that are set based on an air-conditioning load state and an operation state.Type: ApplicationFiled: December 11, 2018Publication date: November 11, 2021Inventors: Koji FUKUI, Kosuke TANAKA, Kazuya WATANABE
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Patent number: 10753660Abstract: An air-conditioning apparatus is able to ensure an appropriate flow rate of refrigerant and an appropriate amount of oil returned to a compressor that match operation conditions regardless of an operating state of a refrigerant circuit and a change in an operation condition. The air-conditioning apparatus includes: a first detector configured to detect a refrigerant temperature within an accumulator; a storage unit configured to store information regarding a two-layer separation temperature of refrigerant and refrigerating machine oil; a determiner configured to compare the refrigerant temperature with the two-layer separation temperature and determine a two-layer separation state of the refrigerant and the refrigerating machine oil; a second detector configured to detect a state of the refrigerant sucked by the compressor; and a control unit configured to adjust an opening degree of a flow control valve on the basis of the two-layer separation state and a state of the sucked refrigerant.Type: GrantFiled: January 23, 2015Date of Patent: August 25, 2020Assignee: Mitsubishi Electric CorporationInventors: Koji Fukui, Masafumi Tomita, Kazuki Okada
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Patent number: 9829231Abstract: A refrigeration cycle apparatus includes low-pressure side pressure detecting means for detecting the pressure of a refrigerant being sucked by a compressor, suction refrigerant temperature detecting means for detecting the temperature of the refrigerant being sucked by the compressor, frequency detecting means for detecting the operation frequency of the compressor, cooling target fluid inflow temperature detecting means for detecting the temperature of a cooling target fluid flowing in an evaporator, cooling target fluid outflow temperature detecting means for detecting the temperature of the cooling target fluid flowing out of the evaporator, and flow rate calculating means (measuring unit, computing unit, and storage unit) for calculating the absolute quantity of the flow rate of the cooling target fluid flowing in the evaporator using a value detected by each detecting means.Type: GrantFiled: October 4, 2011Date of Patent: November 28, 2017Assignee: Mitsubishi Electric CorporationInventors: Koji Fukui, Fumitake Unezaki, Makoto Saito
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Publication number: 20170336116Abstract: An air-conditioning apparatus is able to ensure an appropriate flow rate of refrigerant and an appropriate amount of oil returned to a compressor that match operation conditions regardless of an operating state of a refrigerant circuit and a change in an operation condition. The air-conditioning apparatus includes: a first detector configured to detect a refrigerant temperature within an accumulator; a storage unit configured to store information regarding a two-layer separation temperature of refrigerant and refrigerating machine oil; a determiner configured to compare the refrigerant temperature with the two-layer separation temperature and determine a two-layer separation state of the refrigerant and the refrigerating machine oil; a second detector configured to detect a state of the refrigerant sucked by the compressor; and a control unit configured to adjust an opening degree of a flow control valve on the basis of the two-layer separation state and a state of the sucked refrigerant.Type: ApplicationFiled: January 23, 2015Publication date: November 23, 2017Inventors: Koji FUKUI, Masafumi TOMITA, Kazuki OKADA
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Patent number: 9360068Abstract: A disc brake that suppresses braking noises when a vehicle moves backward include an urging spring urging a friction pad toward a rotationally exiting side of a disc when the vehicle moves forward, the urging spring being arranged between a hook portion of the friction pad and a torque receiving portion of a carrier. The urging spring formed through bend of an elastic plate material has its spring constant that is set to be a small value to avoid resonance frequency causing noise where the base end side thereof is fixed to the hook portion of the backing plate while the top end side thereof elastically abuts to the torque receiving portion of the carrier. The urging spring is located at the position that is outside in the radial direction from the center position of the hook portion in its width direction.Type: GrantFiled: June 29, 2010Date of Patent: June 7, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Shoichi Noguchi, Daisuke Tanabe, Takeshi Fujiki, Koichi Masuko, Shigeru Hayashi, Koji Fukui, Yoichi Kumemura, Hayuru Inoue, Seiko Tsubota
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Patent number: 8967986Abstract: To provide a higher sealing capability irrespective of the pressure difference between compression chambers, lips having leading ends extended toward the inner surface of a recessed groove are formed. At least some of the lips have a base end that is shaped to reduce rigidity against extension of the lips.Type: GrantFiled: June 11, 2010Date of Patent: March 3, 2015Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Toshikazu Harashima, Yoshiyuki Kanemoto, Koji Fukui, Susumu Sakamoto
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Publication number: 20140344703Abstract: An apparatus and a method that perform reproduction control with a high degree of freedom on slideshow reproduction are provided. Reproduction control to which first control data in which information on a reproduction start point and a reproduction end point of an image is recorded and second control data in which information on maximum display time of each image is recorded are applied is performed. When automatic slide paging setting as user setting information is ON (valid), image transition processing is performed according to whether the maximum display time for reproducing the second control data has passed, regardless of whether the reproduction end point of the first control data has passed.Type: ApplicationFiled: November 29, 2012Publication date: November 20, 2014Applicant: SONY CORPORATIONInventors: Kensuke Onuma, Koji Fukui, Yuta Yamaguchi, Toshiyuki Katsumoto
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Publication number: 20140161419Abstract: The present technique relates to a playback apparatus, a playback method, and a program which can perform loop playback of video images while continuing outputting a sound. The present technique has a playback unit which plays back a first stream and a second stream out of synchronization, a first stream has a first browsing unit and a second browsing unit, and a second browsing unit is a browsing unit which includes part of the first browsing unit. Further, the playback unit performs a control to play back the second browsing unit after playing back the first browsing unit, and make a transition to playback from a top of the first browsing unit after playing back the second browsing unit. The present technique is applicable to a blue-ray disk player.Type: ApplicationFiled: July 11, 2012Publication date: June 12, 2014Applicant: SONY CORPORATIONInventors: Koji Fukui, Kensuke Oonuma
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Publication number: 20130235036Abstract: [Object] To realize a natural stereoscopic effect of a stereoscopic image even if the direction or the position of the stereoscopic image is changed. [Solving Means] When at least one of a direction and a position of a stereoscopic image included in a display image is changed, a generator (2) extracts a stereoscopic image corresponding to at least one of the direction and the position after the change from a plurality of stereoscopic images included in stereoscopic image data (3) being data including a plurality of stereoscopic images different in at least one of a direction and a position of a viewpoint, and generates display image data being data of a display image including the extracted stereoscopic image.Type: ApplicationFiled: November 17, 2011Publication date: September 12, 2013Applicant: SONY CORPORATIONInventor: Koji Fukui
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Publication number: 20130232407Abstract: Systems and methods for producing, reproducing, and maintaining electronic books are provided. In one aspect, a system (20) may include a book producing device (21) configured to create at least one page image (47) for an electronic book including reproducible content, where the page image (47) includes a selectable portion having a part of the reproducible content of the electronic book. In addition, the system (20) may also include an electronic book reproducing device (24). The electronic book reproducing device (24) may be configured to determine a target area (92) based on a selection by a user of the selectable portion of the page image (47), and, selectively reproduce, within the target area (92) and in a predetermined manner, the reproducible content and/or other data associated with the selectable portion of the page image.Type: ApplicationFiled: November 17, 2011Publication date: September 5, 2013Applicant: SONY CORPORATIONInventors: Kensuke Onuma, Koji Fukui, Yuta Yamaguchi, Toshiyuki Katsumoto
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Publication number: 20130167567Abstract: A refrigeration cycle apparatus includes low-pressure side pressure detecting means for detecting the pressure of a refrigerant being sucked by a compressor, suction refrigerant temperature detecting means for detecting the temperature of the refrigerant being sucked by the compressor, frequency detecting means for detecting the operation frequency of the compressor, cooling target fluid inflow temperature detecting means for detecting the temperature of a cooling target fluid flowing in an evaporator, cooling target fluid outflow temperature detecting means for detecting the temperature of the cooling target fluid flowing out of the evaporator, and flow rate calculating means (measuring unit, computing unit, and storage unit) for calculating the absolute quantity of the flow rate of the cooling target fluid flowing in the evaporator using a value detected by each detecting means.Type: ApplicationFiled: October 4, 2011Publication date: July 4, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koji Fukui, Fumitake Unezaki, Makoto Saito
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Patent number: 8206138Abstract: This invention provides a scroll type fluid machine which can simultaneously realize the stabilization of the behavior in the rotational direction of an orbiting scroll and the reduction in the manufacturing cost by the ease of holding a grease. In the scroll type fluid machine, three pairs of rotation prevention mechanisms are provided between a casing and an orbiting scroll. The rotation prevention mechanism is constituted of first and second ball coupling mechanisms having a function different from each other. The first ball coupling mechanism supports the thrust load of the orbiting scroll. Meanwhile, the second ball coupling mechanism supports the rotation force of the orbiting scroll.Type: GrantFiled: September 29, 2008Date of Patent: June 26, 2012Assignee: Hitachi, Ltd.Inventors: Yuji Komai, Kazutaka Suefuji, Koji Fukui