Patents by Inventor Tomohiro Okubo

Tomohiro Okubo 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: 11951990
    Abstract: A gear shift control device of an automobile including a driving motor, a relay clutch capable of disconnecting an engine, includes memory storing a gear shift map for determining the switching start timing of the gear position, a transmission control unit that switches the gear position based on the gear shift map, a regeneration control unit, and a relay clutch control unit. The gear shift map includes a cooperative regeneration map and non-cooperative regeneration maps that define the thresholds of relatively low revolutions. The threshold of a predetermined low gear shift point is defined to be smaller than the thresholds of the gear shift points higher than the predetermined low gear shift point on the downshift side in the non-cooperative regeneration maps, and is defined to be smaller than the threshold of the predetermined low gear shift point on the downshift side in the cooperative regeneration map.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: April 9, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Daigo Nishikori, Hiroaki Gotan, Akina Inagaki, Tomohiro Okubo, Kiminori Higo, Takayuki Mikami
  • Patent number: 11906042
    Abstract: A gear shift control device of an automobile includes memory storing a gear shift map that defines, for each of gear shift points, thresholds of the number of revolutions to determine a switching start timing of each of the gear positions, a transmission control unit that performs switching between the gear positions based on the gear shift map, and a regeneration control unit that controls regeneration. The gear shift map includes a non-cooperative regeneration map that defines the thresholds of revolutions lower than the thresholds in a cooperative request map used in cooperative regeneration, and the non-cooperative regeneration map includes a combustion request map that defines the thresholds of low revolutions and is used when an accelerator is not used, and a travel request map that defines the thresholds of relatively higher revolutions and is used when the accelerator is used.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: February 20, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Daigo Nishikori, Hiroaki Gotan, Akina Inagaki, Tomohiro Okubo, Kiminori Higo, Takayuki Mikami
  • Publication number: 20230311895
    Abstract: A gear shift control device of an automobile including a driving motor, a relay clutch capable of disconnecting an engine, includes memory storing a gear shift map for determining the switching start timing of the gear position, a transmission control unit that switches the gear position based on the gear shift map, a regeneration control unit, and a relay clutch control unit. The gear shift map includes a cooperative regeneration map and non-cooperative regeneration maps that define the thresholds of relatively low revolutions. The threshold of a predetermined low gear shift point is defined to be smaller than the thresholds of the gear shift points higher than the predetermined low gear shift point on the downshift side in the non-cooperative regeneration maps, and is defined to be smaller than the threshold of the predetermined low gear shift point on the downshift side in the cooperative regeneration map.
    Type: Application
    Filed: March 27, 2023
    Publication date: October 5, 2023
    Inventors: Daigo Nishikori, Hiroaki Gotan, Akina Inagaki, Tomohiro Okubo, Kiminori Higo, Takayuki Mikami
  • Publication number: 20230313882
    Abstract: A gear shift control device of an automobile includes memory storing a gear shift map that defines, for each of gear shift points, thresholds of the number of revolutions to determine a switching start timing of each of the gear positions, a transmission control unit that performs switching between the gear positions based on the gear shift map, and a regeneration control unit that controls regeneration. The gear shift map includes a non-cooperative regeneration map that defines the thresholds of revolutions lower than the thresholds in a cooperative request map used in cooperative regeneration, and the non-cooperative regeneration map includes a combustion request map that defines the thresholds of low revolutions and is used when an accelerator is not used, and a travel request map that defines the thresholds of relatively higher revolutions and is used when the accelerator is used.
    Type: Application
    Filed: March 27, 2023
    Publication date: October 5, 2023
    Inventors: Daigo Nishikori, Hiroaki Gotan, Akina Inagaki, Tomohiro Okubo, Kiminori Higo, Takayuki Mikami
  • Patent number: 11708891
    Abstract: A shift control system for an automatic transmission is provided. The system includes a shift switch through which a manual transmission command for arbitrarily changing a gear stage of the automatic transmission can be inputted in a manual transmission mode. The manual transmission mode includes a first manual mode in which the gear stage is changed and maintained by inputting the manual transmission command using the shift switch, and a second manual mode in which an automatic transmission mode is resumed by satisfying a resuming condition after the gear stage is changed. The system includes a mode input device configured to select in advance one of the first manual mode and the second manual mode to be set, the mode input device setting to the automatic transmission mode by the selected mode being changed from the first manual mode to the second manual mode, or vice versa.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: July 25, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Toshiaki Shirasago, Tomohiro Okubo, Shoji Abe, Hideyuki Nishi, Hajime Oyama, Kiminori Higo
  • Patent number: 11519493
    Abstract: A shift control system for an automatic transmission is provided, which is mounted on a vehicle configured to be started by an ignition switch being turned on, where an automatic transmission mode or a manual transmission mode is selectively set. The system includes a shift switch through which a manual transmission command for arbitrarily changing a gear stage of the automatic transmission can be inputted in the manual transmission mode, and a controller. The manual transmission mode includes a first manual mode in which the gear stage is changed and maintained by inputting the manual transmission command using the shift switch, and a second manual mode in which the automatic transmission mode is resumed by satisfying a resuming condition after the gear stage is changed. When the ignition switch is turned on, the controller selects in advance the second mode to be set to the automatic transmission.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: December 6, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Toshiaki Shirasago, Tomohiro Okubo, Shoji Abe, Hideyuki Nishi, Hajime Oyama, Kiminori Higo
  • Publication number: 20210310556
    Abstract: A shift control system for an automatic transmission is provided, which is mounted on a vehicle configured to be started by an ignition switch being turned on, where an automatic transmission mode or a manual transmission mode is selectively set. The system includes a shift switch through which a manual transmission command for arbitrarily changing a gear stage of the automatic transmission can be inputted in the manual transmission mode, and a controller. The manual transmission mode includes a first manual mode in which the gear stage is changed and maintained by inputting the manual transmission command using the shift switch, and a second manual mode in which the automatic transmission mode is resumed by satisfying a resuming condition after the gear stage is changed. When the ignition switch is turned on, the controller selects in advance the second mode to be set to the automatic transmission.
    Type: Application
    Filed: February 17, 2021
    Publication date: October 7, 2021
    Inventors: Toshiaki Shirasago, Tomohiro Okubo, Shoji Abe, Hideyuki Nishi, Hajime Oyama, Kiminori Higo
  • Publication number: 20210310555
    Abstract: A shift control system for an automatic transmission is provided. The system includes a shift switch through which a manual transmission command for arbitrarily changing a gear stage of the automatic transmission can be inputted in a manual transmission mode. The manual transmission mode includes a first manual mode in which the gear stage is changed and maintained by inputting the manual transmission command using the shift switch, and a second manual mode in which an automatic transmission mode is resumed by satisfying a resuming condition after the gear stage is changed. The system includes a mode input device configured to select in advance one of the first manual mode and the second manual mode to be set, the mode input device setting to the automatic transmission mode by the selected mode being changed from the first manual mode to the second manual mode, or vice versa.
    Type: Application
    Filed: February 16, 2021
    Publication date: October 7, 2021
    Inventors: Toshiaki Shirasago, Tomohiro Okubo, Shoji Abe, Hideyuki Nishi, Hajime Oyama, Kiminori Higo
  • Patent number: 7819069
    Abstract: A showcase has shelf devices in a chamber having a plurality of open surfaces, a pair of shelf support members which extend in a depth direction of the chamber supporting the shelves in a position where adjacent shelves are butted with each other. A support member side portion protrudes from a lower portion of one shelf support member to another shelf support member, a support member side portion protrudes from a lower portion of the other shelf support member to the one shelf support member and superimposed on the support member side portion, a shelf side portion has bottom side superimposed on the support member side portion, a shelf side portion formed under the adjacent shelf has a bottom side superimposed on the shelf side portion, and a bonding member detachably bonds the support side portions and shelf side portions in a superimposed position.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: October 26, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tsutomu Tanaka, Masafumi Sakaguchi, Tomohiro Okubo, Yasuhiko Hayashi, Masahiko Nagatake
  • Publication number: 20070193480
    Abstract: An object is to provide a showcase in which shelves can stably be installed and in which improvements of display performance and appearance can be realized, and a showcase provided with shelf devices in a chamber having a plurality of open surfaces comprises a pair of shelf support members which extend in a depth direction of the chamber and which support the shelves in a position where the adjacent shelves are butted with each other, respectively; a support member side superimposed portion which protrudes from a lower portion of one shelf support member to the other shelf support member; a support member side superimposed portion which protrudes from a lower portion of the other shelf support member to the one shelf support member and which is superimposed on the support member side superimposed portion; a shelf side superimposed portion which has a bottom side superimposed on the support member side superimposed portion; a shelf side superimposed portion which is formed under the adjacent shelf and which ha
    Type: Application
    Filed: February 16, 2007
    Publication date: August 23, 2007
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Tsutomu Tanaka, Masafumi Sakaguchi, Tomohiro Okubo, Yasuhiko Hayashi, Masahiko Nagatake
  • Patent number: 6749137
    Abstract: An electromagnetic fuel injection valve wherein a central pipe part has satisfactory mechanical strength and an intermediate portion of the pipe part is surely made non-magnetic is provided. The electromagnetic fuel injection valve has a core surrounded by a solenoid coil. A valve housing is disposed forward of the core. The core and the valve housing are connected through a thin-walled portion. The wall thickness of the thin-walled portion is smaller than the wall thickness of the core and that of the valve housing. The core and the thin-walled portion, together with the valve housing, are formed in an integral structure. The thin-walled portion has a sufficient wall thickness to provide satisfactory mechanical strength. The thin-walled portion is modified into a high-hardness non-magnetic portion by a carbulizing treatment.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: June 15, 2004
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Yukinori Kato, Motoyuki Suzuki, Hikaru Kikuta, Tomohiro Okubo, Masami Hirata
  • Publication number: 20030178510
    Abstract: An electromagnetic fuel injection valve wherein a central pipe part has satisfactory mechanical strength and an intermediate portion of the pipe part is surely made non-magnetic is provided. The electromagnetic fuel injection valve has a core surrounded by a solenoid coil. A valve housing is disposed forward of the core. The core and the valve housing are connected through a thin-walled portion. The wall thickness of the thin-walled portion is smaller than the wall thickness of the core and that of the valve housing. The core and the thin-walled portion, together with the valve housing, are formed in an integral structure. The thin-walled portion has a sufficient wall thickness to provide satisfactory mechanical strength. The thin-walled portion is modified into a high-hardness non-magnetic portion by a carbulizing treatment.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 25, 2003
    Inventors: Yukinori Kato, Motoyuki Suzuki, Hikaru Kikuta, Tomohiro Okubo, Masami Hirata