Patents by Inventor Keita Abe

Keita Abe 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).

  • Patent number: 12143099
    Abstract: A switching element driving method executed in a switching element driving device including a plurality of switching elements and a driving circuit configured to drive the plurality of switching elements, the switching element driving method including: detecting temperatures of the plurality of switching elements; calculating a switching determination temperature that serves as a reference for changing switching speeds of the switching elements from the plurality of detected temperatures; and changing the switching speeds of all the switching elements based on the switching determination temperature.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: November 12, 2024
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuka Okuyama, Kazushige Namiki, Keita Abe
  • Publication number: 20230327658
    Abstract: A switching element driving method executed in a switching element driving device including a plurality of switching elements and a driving circuit configured to drive the plurality of switching elements, the switching element driving method including: detecting temperatures of the plurality of switching elements; calculating a switching determination temperature that serves as a reference for changing switching speeds of the switching elements from the plurality of detected temperatures; and changing the switching speeds of all the switching elements based on the switching determination temperature.
    Type: Application
    Filed: August 28, 2020
    Publication date: October 12, 2023
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Yuka Okuyama, Kazushige Namiki, Keita Abe
  • Patent number: 11633335
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden such as pain and irritation on the skin. The skin cleansing composition comprises 0.08 mass % or more and 35 mass % or less of (X) 2-amino-2-methyl-1-propanol and has a pH of 9.3 or more and 12.5 or less at 25° C.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: April 25, 2023
    Assignee: KAO CORPORATION
    Inventors: Keita Abe, Toshiaki Ozawa, Yuri Okutani, Daisuke Sawa
  • Patent number: 11424689
    Abstract: A power conversion device includes a case, a power module, a smoothing capacitor and a high-voltage connection portion. The power module is housed in the case. The smoothing capacitor is fixed to the case by capacitor fixing bolt, and suppresses voltage fluctuations. In the high-voltage connection portion, the power module and the smoothing capacitor are electrically connected. The locations at which the smoothing capacitor is fixed to the case by the capacitor fixing bolts correspond to the capacitor fixing points. The capacitor fixing points are arranged at positions that avoid corner portions of the smoothing capacitor. The power module and the smoothing capacitor are disposed adjacent to each other at the high-voltage connection portion.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: August 23, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Keita Abe
  • Patent number: 11406849
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden, such as pain and irritation, on the skin. The skin cleansing composition comprises the following components (X) and (Y): (X): one or more selected from the group consisting of 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol; and (Y): a basic material other than component (X), and has a pH of 8.3 or more and 12.5 or less at 25° C.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: August 9, 2022
    Assignee: KAO CORPORATION
    Inventors: Keita Abe, Daisuke Sawa, Yuri Okutani, Toshiaki Ozawa
  • Patent number: 11224561
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden such as pain and irritation on the skin. A skin cleansing composition comprises 0.08 mass % or more and 35 mass % or less of (X) 2-amino-2-methyl-1,3-propanediol and has a pH of 8.5 or more and 12.5 or less at 25° C.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: January 18, 2022
    Assignee: KAO CORPORATION
    Inventors: Keita Abe, Toshiaki Ozawa, Yuri Okutani, Daisuke Sawa
  • Publication number: 20210101029
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden, such as pain and irritation, on the skin. The skin cleansing composition comprises the following components (X) and (Y): (X): one or more selected from the group consisting of 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol; and (Y): a basic material other than component (X), and has a pH of 8.3 or more and 12.5 or less at 25° C.
    Type: Application
    Filed: April 6, 2018
    Publication date: April 8, 2021
    Applicant: KAO CORPORATION
    Inventors: Keita ABE, Daisuke SAWA, Yuri OKUTANI, Toshiaki OZAWA
  • Publication number: 20210044247
    Abstract: A device protection apparatus comprises, a refrigerant temperature sensor for detecting a temperature of a refrigerant used for cooling a device including a heat-generation part, a plurality of device temperature sensors for detecting a temperature of the device, a controller that applies drive limitation to the device based on a detected refrigerant temperature detected by the refrigerant temperature sensor and a detected temperature detected by the device temperature sensors.
    Type: Application
    Filed: April 11, 2018
    Publication date: February 11, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kazushige NAMIKI, Keita ABE, Masahiko EDUMI, Shinji KAWAGUCHI
  • Publication number: 20200382014
    Abstract: A power conversion device includes a case, a power module, a smoothing capacitor and a high-voltage connection portion. The power module is housed in the case. The smoothing capacitor is fixed to the case by capacitor fixing bolt, and suppresses voltage fluctuations. In the high-voltage connection portion, the power module and the smoothing capacitor are electrically connected. The locations at which the smoothing capacitor is fixed to the case by the capacitor fixing bolts correspond to the capacitor fixing points. The capacitor fixing points are arranged at positions that avoid corner portions of the smoothing capacitor. The power module and the smoothing capacitor are disposed adjacent to each other at the high-voltage connection portion.
    Type: Application
    Filed: June 15, 2017
    Publication date: December 3, 2020
    Inventor: Keita ABE
  • Publication number: 20200155433
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden such as pain and irritation on the skin. A skin cleansing composition comprises 0.08 mass % or more and 35 mass % or less of (X) 2-amino-2-methyl-1,3-propanediol and has a pH of 8.5 or more and 12.5 or less at 25° C.
    Type: Application
    Filed: April 6, 2018
    Publication date: May 21, 2020
    Applicant: KAO CORPORATION
    Inventors: Keita ABE, Toshiaki OZAWA, Yuri OKUTANI, Daisuke SAWA
  • Publication number: 20200155434
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden, such as pain and irritation, on the skin. The skin cleansing composition comprises 0.08 mass % or more and 35 mass % or less of (X) 2-amino-2-hydroxymethyl-1,3-propanediol and has a pH of 8.6 or more and 12.5 or less at 25° C.
    Type: Application
    Filed: April 6, 2018
    Publication date: May 21, 2020
    Applicant: KAO CORPORATION
    Inventors: Keita ABE, Toshiaki OZAWA, Yuri OKUTANI, Daisuke SAWA
  • Publication number: 20200121577
    Abstract: The present invention relates to a skin cleansing composition which can sufficiently exhibit an excellent keratotic plug-removing effect without a burden such as pain and irritation on the skin. The skin cleansing composition comprises 0.08 mass % or more and 35 mass % or less of (X) 2-amino-2-methyl-1-propanol and has a pH of 9.3 or more and 12.5 or less at 25° C.
    Type: Application
    Filed: April 6, 2018
    Publication date: April 23, 2020
    Applicant: KAO CORPORATION
    Inventors: Keita ABE, Toshiaki OZAWA, Yuri OKUTANI, Daisuke SAWA
  • Publication number: 20190021499
    Abstract: Providing an overturn preventing device which can prevent an article from overturn while maintaining the mounted state against an earthquake or the like with multidirectional shaking. The overturn preventing device includes a damper and a pair of a first base and a second base. The damper is mounted between a top surface of a piece of furniture installed on a floor and a ceiling. Two ends of the damper are respectively coupled to the first and second bases so as to be swingable in multiple directions. The first base abuts against the top surface of the furniture and the second base abuts against the ceiling.
    Type: Application
    Filed: February 20, 2017
    Publication date: January 24, 2019
    Applicant: KYB CORPORATION
    Inventors: Masakazu NAKAZATO, Keita ABE, Atsushi TOYOUCHI
  • Patent number: 9877585
    Abstract: Providing an overturn preventing device which can easily be mounted between a top surface of a piece of furniture and a ceiling while an axis line of a damper relative to a vertical direction is inclined at an angle ranging from 15° to 25°. The overturn preventing device includes a damper, a first base portion and a second base portion. The first base portion has a first abutting surface and a first connection. The first base portion is mounted on the top surface of the furniture. The second base portion has a second abutting surface and a second connection. The second base portion is mounted on the ceiling. A relation, X+L sin 15°?Y?X+L sin 25°, is obtained where reference symbol X designates a distance from the first abutting surface to the first connection, reference symbol L designates a length of the damper and reference symbol Y designates a distance from the second abutting surface the second connection.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: January 30, 2018
    Assignee: KYB CORPORATION
    Inventors: Shinichi Sekine, Eiro Fujita, Yasushi Saito, Masanori Ogura, Teruhiko Inoue, Kenji Isshin, Keita Abe
  • Patent number: 9872564
    Abstract: Providing an overturn preventing device which can successfully prevent overturn of an article. The overturn preventing device includes a damper mounted between a piece of furniture and a ceiling and a setting member connected to both ends of the damper. The setting member has a first setting part body and a second setting part body. The first and second setting part bodies and of the setting member are spread when the overturn preventing device is mounted between the furniture and the ceiling. The setting member assumes such a shape as to extend in one direction when the first and second setting part bodies and are unspread.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: January 23, 2018
    Assignee: KYB CORPORATION
    Inventors: Yasuo Tsuyuki, Masakazu Nakazato, Shinichi Sekine, Masanori Ogura, Teruhiko Inoue, Kenji Isshin, Keita Abe
  • Publication number: 20170354251
    Abstract: Providing a vibration damping shelf which can suppress fall of articles placed on a shelf member while suppressing shake of other articles or the like. The vibration damping shelf includes a damper and shelf plates. The damper has two ends mounted, on a top surface of a piece of furniture and a ceiling spaced from each other in an up-down direction. The shelf plates are held on the damper.
    Type: Application
    Filed: December 14, 2015
    Publication date: December 14, 2017
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Yasushi SAITO, Masanori OGURA, Teruhiko INOUE, Kenji ISSHIN, Keita ABE
  • Publication number: 20170340115
    Abstract: Providing an overturn preventing device which can easily be mounted and can prevent articles from overturn. The overturn preventing device includes an abutting part and a connecting part. The abutting part abuts against a ceiling. The abutting part is disposed so as to extend in one direction while gradually departing from the ceiling. The connecting part has two ends one of which is connected to an end of the abutting part away from the ceiling and the other of which is disposed on a top surface of a piece of furniture. The abutting part is elastically deformed with tilt of the furniture, so that an area of a part of the abutting part abutting against the ceiling is increased.
    Type: Application
    Filed: December 3, 2015
    Publication date: November 30, 2017
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Masanori OGURA, Teruhiko INOUE, Kenji ISSHIN, Keita ABE
  • Publication number: 20170284087
    Abstract: Providing an overturn preventing device which is easy in handling such as carrying. The overturn preventing device includes a damper, a first base portion, a second base portion and a connecting tool. The damper is mounted between a top surface of furniture and a ceiling. An expansion force of compressed gas filling a cylinder is applied to the damper in a direction such that a length of the damper is increased. The first base portion is rotatably connected to one of two ends of the damper and has a first abutting surface which abuts against the top surface of the furniture. The second base portion is rotatably connected to the other end of the damper and has a second abutting surface which abuts against the ceiling. The connecting tool maintains a folded state in which the damper is contracted so that the first base portion and the second base portion come close to each other.
    Type: Application
    Filed: August 6, 2015
    Publication date: October 5, 2017
    Applicant: KYB CORPORATION
    Inventors: Eiro FUJITA, Yasushi SAITO, Masanori OGURA, Teruhiko INOUE, Kenji ISSHIN, Keita ABE
  • Publication number: 20170251811
    Abstract: Providing an overturn preventing device which can be mounted to an article such as furniture irrespective of an installation location of the article and which can prevent the article from being overturned by quakes of an earthquake or the like. The overturn preventing device includes a plurality of dampers mounted between a top surface of the furniture installed on a floor surface and a ceiling. The dampers are compression damper that has a smaller damping force generated during an extending operation than a damping force generated during a compressing operation. The dampers have respective axis lines extending from a ceiling side to the top surface side of the furniture, and the axis lines are downwardly inclined and extend in a plurality of directions in a planar view as viewed from above when the dampers are mounted between the top surface of the furniture and the ceiling.
    Type: Application
    Filed: July 31, 2015
    Publication date: September 7, 2017
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Eiro FUJITA, Yasushi SAITO, Masanori OGURA, Teruhiko INOUE, Kenji ISSHIN, Keita ABE
  • Publication number: 20170231389
    Abstract: Providing an overturn preventing device which can easily be mounted between a top surface of a piece of furniture and a ceiling while an axis line of a damper relative to a vertical direction is inclined at an angle ranging from 15° to 25°. The overturn preventing device includes a damper, a first base portion and a second base portion. The first base portion has a first abutting surface and a first connection. The first base portion is mounted on the top surface of the furniture. The second base portion has a second abutting surface and a second connection. The second base portion is mounted on the ceiling. A relation, X+L sin 15°?Y?X+L sin 25°, is obtained where reference symbol X designates a distance from the first abutting surface to the first connection, reference symbol L designates a length of the damper and reference symbol Y designates a distance from the second abutting surface the second connection.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 17, 2017
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Eiro FUJITA, Yasushi SAITO, Masanori OGURA, Teruhiko INOUE, Kenji ISSHIN, Keita ABE