Patents by Inventor Tomohiro KOMAJI

Tomohiro KOMAJI 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: 11878576
    Abstract: The vehicle door structure includes: a door outer panel including a projected section that projects outward in a vehicle width direction, a recessed section that is separated from the projected section and recessed inward in the vehicle width direction, and a boundary section between the projected section and the recessed section; and a panel reinforcement fixed to an inner surface in the vehicle width direction of the door outer panel. The panel reinforcement includes: a first frame section that extends in a vehicle front-rear direction; and a second frame section at a position that overlaps the boundary section in the vehicle side view and is configured to be able to transmit a load to the first frame section at the time when the load in an inward direction of the vehicle width direction is applied to the boundary section.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: January 23, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisuke Nakayama, Kyohei Yukita, Tomohiro Komaji
  • Publication number: 20230182547
    Abstract: A vehicle door is provided having an outer panel reinforced by a panel reinforcement and which is configured to generate low-frequency sound dominantly at the time of closing the door. The door has an outer panel openably/closably attached to a vehicle body by a front hinge; and a panel reinforcement extending in a vehicle front-rear direction on an inner side of the outer panel. The outer panel and the panel reinforcement are fixed by plural adhesion sections. The number of the adhesion sections in an upper area of the outer panel is larger than the number of the adhesion sections in a lower area of the outer panel. The number of the adhesion sections provided in a front lower area near the front hinge in the lower area is larger than the number of adhesion sections in a rear lower area away from the front hinge in the lower area.
    Type: Application
    Filed: November 22, 2022
    Publication date: June 15, 2023
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Daisuke NAKAYAMA, Tomohiro KOMAJI, Hidemitsu SHINHARA, Masaki MOURI, Eiji ORO, Masayoshi SANNABE
  • Publication number: 20230029078
    Abstract: The vehicle door structure includes: a door outer panel including a projected section that projects outward in a vehicle width direction, a recessed section that is separated from the projected section and recessed inward in the vehicle width direction, and a boundary section between the projected section and the recessed section; and a panel reinforcement fixed to an inner surface in the vehicle width direction of the door outer panel. The panel reinforcement includes: a first frame section that extends in a vehicle front-rear direction; and a second frame section at a position that overlaps the boundary section in the vehicle side view and is configured to be able to transmit a load to the first frame section at the time when the load in an inward direction of the vehicle width direction is applied to the boundary section.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 26, 2023
    Applicant: Mazda Motor Corporation
    Inventors: Daisuke NAKAYAMA, Kyohei YUKITA, Tomohiro KOMAJI
  • Patent number: 11254365
    Abstract: A side vehicle-body structure of a vehicle that suppresses displacement of a front wall portion of a center pillar to a vehicle-width-direction inner side with respect to a rear wall portion of the center pillar due to a side collision load. The side vehicle-body structure of the vehicle in which the center pillar does not exist on a body side includes a front door, and a rear door having a length in a front-rear direction shorter than a length of the front door in the front-rear direction. The rear door has a center pillar on a door side in a front portion, and a gusset member protruding from a rear wall portion of the center pillar to a door outer panel side with respect to an outer wall portion of the center pillar and having a receiving surface portion for a side collision load along the door outer panel.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: February 22, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Tomohiro Komaji, Yoshihiko Horita
  • Patent number: 11235813
    Abstract: A side vehicle-body structure of a vehicle capable of efficiently absorbing side collision energy while downsizing an energy absorbing material. The side vehicle-body structure includes a center pillar in which a lower end side is positioned on a vehicle-width-direction outer side with respect to an upper end thereof. The center pillar includes a breakage inducing portion that is provided to be close to a lower portion of an outer wall of the center pillar and induces breakage at time of a side collision, and a step-down portion provided in a corner portion of a center pillar outer wall of the breakage inducing portion. An energy absorbing material is disposed between the step-down portion 3 and an inner panel.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: February 1, 2022
    Assignee: MAZD.A MOTOR CORPORATION
    Inventors: Tomohiro Komaji, Yoshihiko Horita
  • Patent number: 10953735
    Abstract: In a motor vehicle having an opening 1 through an upper or lateral side of the vehicle cabin, a return portion 40c extending toward the inside of the vehicle cabin and the front of the vehicle from a region spaced rearward from the rear edge of the opening 1 is formed to return travel wind toward the front of the vehicle.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 23, 2021
    Assignees: MAZDA MOTOR CORPORATION, Nishikawa Rubber Co., Ltd.
    Inventors: Tomoki Takahashi, Miwa Shinohara, Yoshihiko Horita, Tatsuo Koibuchi, Kazuaki Kikumitsu, Tomohiro Komaji, Sachi Matsui, Daisuke Nakazato, Akio Okayama
  • Publication number: 20210061363
    Abstract: A side vehicle-body structure of a vehicle that suppresses displacement of a front wall portion of a center pillar to a vehicle-width-direction inner side with respect to a rear wall portion of the center pillar due to a side collision load. The side vehicle-body structure of the vehicle in which the center pillar does not exist on a body side includes a front door, and a rear door having a length in a front-rear direction shorter than a length of the front door in the front-rear direction. The rear door has a center pillar on a door side in a front portion, and a gusset member protruding from a rear wall portion of the center pillar to a door outer panel side with respect to an outer wall portion of the center pillar and having a receiving surface portion for a side collision load along the door outer panel.
    Type: Application
    Filed: August 17, 2020
    Publication date: March 4, 2021
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomohiro KOMAJI, Yoshihiko HORITA
  • Publication number: 20210061360
    Abstract: A side vehicle-body structure of a vehicle capable of efficiently absorbing side collision energy while downsizing an energy absorbing material. The side vehicle-body structure includes a center pillar in which a lower end side is positioned on a vehicle-width-direction outer side with respect to an upper end thereof. The center pillar includes a breakage inducing portion that is provided to be close to a lower portion of an outer wall of the center pillar and induces breakage at time of a side collision, and a step-down portion provided in a corner portion of a center pillar outer wall of the breakage inducing portion. An energy absorbing material is disposed between the step-down portion 3 and an inner panel.
    Type: Application
    Filed: August 17, 2020
    Publication date: March 4, 2021
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomohiro KOMAJI, Yoshihiko HORITA
  • Patent number: 10843544
    Abstract: Corner portions of an upper edge of the rear-side roof 24 close to the side windows protrude toward a front of the vehicle beyond a rear frame portion of the associated side window. Pillars are positioned on the respective corner portions inside the vehicle. Weatherstrips 34 each include a lip portion 34b covering an upper end portion of the associated pillar from outside of the vehicle while the roof is closed. Sealing members 40 are respectively provided on the inside of the corner portions. An extended sealing portion 40b extends from each sealing member 40. The extended sealing portion 40b blocks a gap, formed between the associated corner portion and the associated pillar and intended for the lip portion 34b, while the front-side roof is open. The lip portion 34b of the weatherstrip 34 is sandwiched between the extended sealing portion 40b and the pillar while the roof is closed.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 24, 2020
    Assignees: MAZDA MOTOR CORPORATION, Nishikawa Rubber Co., Ltd.
    Inventors: Tomoki Takahashi, Miwa Shinohara, Yoshihiko Horita, Tatsuo Koibuchi, Kazuaki Kikumitsu, Tomohiro Komaji, Sachi Matsui, Daisuke Nakazato, Akio Okayama
  • Publication number: 20190193543
    Abstract: Corner portions of an upper edge of the rear-side roof 24 close to the side windows protrude toward a front of the vehicle beyond a rear frame portion of the associated side window. Pillars are positioned on the respective corner portions inside the vehicle. Weatherstrips 34 each include a lip portion 34b covering an upper end portion of the associated pillar from outside of the vehicle while the roof is closed. Sealing members 40 are respectively provided on the inside of the corner portions. An extended sealing portion 40b extends from each sealing member 40. The extended sealing portion 40b blocks a gap, formed between the associated corner portion and the associated pillar and intended for the lip portion 34b, while the front-side roof is open. The lip portion 34b of the weatherstrip 34 is sandwiched between the extended sealing portion 40b and the pillar while the roof is closed.
    Type: Application
    Filed: October 2, 2017
    Publication date: June 27, 2019
    Applicants: MAZDA MOTOR CORPORATION, Nishikawa Rubber Co., Ltd.
    Inventors: Tomoki TAKAHASHI, Miwa SHINOHARA, Yoshihiko HORITA, Tatsuo KOIBUCHI, Kazuaki KIKUMITSU, Tomohiro KOMAJI, Sachi MATSUI, Daisuke NAKAZATO, Akio OKAYAMA
  • Publication number: 20190193539
    Abstract: In a motor vehicle having an opening 1 through an upper or lateral side of the vehicle cabin, a return portion 40c extending toward the inside of the vehicle cabin and the front of the vehicle from a region spaced rearward from the rear edge of the opening 1 is formed to return travel wind toward the front of the vehicle.
    Type: Application
    Filed: October 2, 2017
    Publication date: June 27, 2019
    Applicants: MAZDA MOTOR CORPORATION, Nishikawa Rubber Co., Ltd.
    Inventors: Tomoki TAKAHASHI, Miwa SHINOHARA, Yoshihiko HORITA, Tatsuo KOIBUCHI, Kazuaki KIKUMITSU, Tomohiro KOMAJI, Sachi MATSUI, Daisuke NAKAZATO, Akio OKAYAMA
  • Patent number: 9623736
    Abstract: An openable roof includes an expandable and retractable awning frame, and an awning cloth for covering the outside of the awning frame. The awning frame is provided with an awning bow which supports the awning cloth when the awning frame is expanded. The awning bow includes a pair of left and right leg portions extending in up and down directions, and an upper side portion which connects between upper ends of the leg portions in a vehicle width direction. Each of the leg portions of the awning bow is formed with two or more bent parts. At least one pair of the bent parts on each of the leg portions are configured such that moments generated in the awning bow due to a tensile force exerted from the awning cloth when the openable roof is in an expanded state act in such directions as to cancel out each other.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: April 18, 2017
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kouichi Matsumoto, Eisuke Kuramoto, Tomohiro Komaji, Motonori Horii
  • Patent number: 9493060
    Abstract: A holding device to hold an openable roof when the openable roof is stored is provided at a front portion of a storage partition. There is provided a changing member to change a hook having an open position from its open position to its pre-lock position by being pressed down by the hook taking the open position when the openable roof is operated for storage in the storage partition. The changing member is provided adjacently to the holding device. Thereby, a rear vehicle-body structure of a vehicle which can surely change the hook from its open position to its pre-lock position can be provided.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: November 15, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Tomohiro Komaji, Kouichi Matsumoto
  • Publication number: 20160059681
    Abstract: An openable roof includes an expandable and retractable awning frame, and an awning cloth for covering the outside of the awning frame. The awning frame is provided with an awning bow which supports the awning cloth when the awning frame is expanded. The awning bow includes a pair of left and right leg portions extending in up and down directions, and an upper side portion which connects between upper ends of the leg portions in a vehicle width direction. Each of the leg portions of the awning bow is formed with two or more bent parts. At least one pair of the bent parts on each of the leg portions are configured such that moments generated in the awning bow due to a tensile force exerted from the awning cloth when the openable roof is in an expanded state act in such directions as to cancel out each other.
    Type: Application
    Filed: August 13, 2015
    Publication date: March 3, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kouichi MATSUMOTO, Eisuke KURAMOTO, Tomohiro KOMAJI, Motonori HORII
  • Publication number: 20160059683
    Abstract: A holding device to hold an openable roof when the openable roof is stored is provided at a front portion of a storage partition. There is provided a changing member to change a hook having an open position from its open position to its pre-lock position by being pressed down by the hook taking the open position when the openable roof is operated for storage in the storage partition. The changing member is provided adjacently to the holding device. Thereby, a rear vehicle-body structure of a vehicle which can surely change the hook from its open position to its pre-lock position can be provided.
    Type: Application
    Filed: August 12, 2015
    Publication date: March 3, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomohiro KOMAJI, Kouichi MATSUMOTO
  • Patent number: 9211784
    Abstract: A slide member to lock a roof member stored in a storage space by its rearward sliding and unlock the roof member by its forward sliding is provided. An operational member to rotate around a first rotational axis includes an operational portion to be operated from an inside of a vehicle compartment. A slide member slides longitudinally when a middle member rotates around a second rotational axis. The middle member is linked with the operational member such that it rotates in an opposite direction to a rotational direction of the operational member. The second rotational axis is located at a lower level than the first rotational axis such that the slide member slides forward to an unlock position when the middle member rotates according to an upward rotation of the operational portion.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: December 15, 2015
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Tomohiro Komaji, Kouichi Matsumoto
  • Publication number: 20150197142
    Abstract: A slide member to lock a roof member stored in a storage space by its rearward sliding and unlock the roof member by its forward sliding is provided. An operational member to rotate around a first rotational axis includes an operational portion to be operated from an inside of a vehicle compartment. A slide member slides longitudinally when a middle member rotates around a second rotational axis. The middle member is linked with the operational member such that it rotates in an opposite direction to a rotational direction of the operational member. The second rotational axis is located at a lower level than the first rotational axis such that the slide member slides forward to an unlock position when the middle member rotates according to an upward rotation of the operational portion.
    Type: Application
    Filed: December 12, 2014
    Publication date: July 16, 2015
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomohiro KOMAJI, Kouichi MATSUMOTO