Patents by Inventor Katsuyuki Komiya

Katsuyuki Komiya 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).

  • Publication number: 20190061821
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member, and on each of rear ends of the upper side members. The rear subframe further includes a pillar portion formed between the upper side member and the lower side member; a first-arm support portion formed on the pillar portion to support a first arm; a second-arm support portion formed on the pillar portion to support a second arm; and an arm support bracket to support the second-arm support portion from a rear side.
    Type: Application
    Filed: November 2, 2016
    Publication date: February 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Publication number: 20190039652
    Abstract: A front structure of a motor vehicle includes a pair of left and right front side frames, a pair of left and right apron reinforcements, and reinforcing members extending in a vertical direction to couple the left front side frame to the left apron reinforcement, and the right front side frame to the right apron reinforcement. Each reinforcing member is provided on a surface, facing outside in a width direction of the motor vehicle, of a peripheral wall of a suspension tower, and forms a closed cross section with a portion of the peripheral wall.
    Type: Application
    Filed: July 12, 2018
    Publication date: February 7, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takehiro KAMEI, Masanobu HANAZAKI, Katsuyuki KOMIYA
  • Patent number: 10118643
    Abstract: To reinforce a front sub-frame in such a manner that the front sub-frame having a trapezoidal shape formed by a cross member and left and right side members extending to one side is not deformed to a rhombus shape at the one side, a front sub-frame structure includes: a rear cross member (74) coupling arm supporting parts (71, 71) supported on left and right side members (6, 6); tilt members (75) coupling left and right intermediate portions of the rear cross member (74) to rear vehicle attachment parts (M3) of the side members (6); a brace (80) coupling the left and right arm supporting parts (71, 71) to the rear vehicle attachment parts (M3); and intermediate coupling parts (91) coupling the brace (80) to intermediate portions of the tilt members (75).
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 6, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki Komiya, Masaaki Tanaka
  • Publication number: 20180281860
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member, and on each of rear ends of the upper side members. The rear subframe further includes a vertical-wall-shaped pillar portion held and fixed between a lateral portion of the front cross member in the vehicle width direction and the upper side member, and extending in the vehicle width direction. A lower portion of the pillar portion is connected to the lower side member, an upper-arm support portion is formed on an upper portion of the pillar portion, and a lower-arm support portion is formed on a lower portion of the pillar portion.
    Type: Application
    Filed: November 2, 2016
    Publication date: October 4, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Publication number: 20180281863
    Abstract: The present application discloses front chassis structure including set plate to which impact absorber is connected. Front chassis structure includes: pillar member having inner support plate portion for supporting impact absorber, outer support plate portion for supporting impact absorber in cooperation with inner support portion, and pillar portion having horizontal cross-section bulging rearward from inner and outer support plate portions; connection member for connecting pillar portion to vehicle body; front side member extending rearward from pillar member; and projecting member projecting outward from pillar member. Set plate is mounted on the outer and inner support plate portions. Projecting member includes front end covered by outer support plate portion. Projecting member is connected to front side member so that projecting member presses front side member inward under moment around connection member, moment being generated at collision of automobile.
    Type: Application
    Filed: February 27, 2018
    Publication date: October 4, 2018
    Applicants: Y-TEC CORPORATION, MAZDA MOTOR CORPORATION
    Inventors: Tomohisa DAIKOKUYA, Yasunari JINBO, Katsuyuki KOMIYA, Yoko TAKANASHI
  • Publication number: 20180273098
    Abstract: A front subframe structure includes front and rear cross members, a pair of left and right side members, and a vehicle body mounting portion disposed on front ends of the side members. The side member has a lateral widening portion at a front end thereof, wherein the lateral widening portion bulges outward in a vehicle width direction. The front cross member has a front widening portion at an end portion thereof in the vehicle width direction, wherein the front widening portion bulges forward of the vehicle. A portion of the front cross member excluding the front widening portion is disposed on the rear side with respect to the vehicle body mounting portion, and on the front side with respect to a rear end of the lateral widening portion.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 27, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki KOMIYA, Yasushi ISHIKAWA
  • Publication number: 20180273093
    Abstract: A rear subframe structure is provided with a rear subframe including a front cross member, and a pair of left and right side members connected to the front cross member, and further including a vehicle-body mounting portion formed on both ends of the front cross member. The rear subframe includes a tunnel portion formed in a middle of a lower portion of the front cross member, and a brace extending in the vehicle width direction, and including a tunnel-portion mounting portion on left and right ends thereof. The brace includes a middle downwardly bulging portion bulging downwardly, and an upwardly bulging portion continued outwardly of the middle downwardly bulging portion and bulging upwardly. An inflection point between the middle downwardly bulging portion and the upwardly bulging portion is substantially located on an imaginary line linearly connecting the left and right tunnel-portion mounting portions in the vehicle width direction.
    Type: Application
    Filed: November 2, 2016
    Publication date: September 27, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Publication number: 20180273094
    Abstract: A tension rod supporting part (14) is provided at a sub-frame front structure (10) of a front part of a front sub-frame (5); the side member (6) is disposed upward in one side and extended rearward from the tension rod supporting part (14); a rack arrangement step (A) opened downward for arranging a steering rack (55) is formed behind the tension rod supporting portion (14) and under the side member (6); and a stabilizer support part (62) is provided in the rack arrangement step (A).
    Type: Application
    Filed: November 1, 2016
    Publication date: September 27, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki KOMIYA, Masaaki TANAKA
  • Publication number: 20180265131
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed. The rear subframe further includes a lower-arm support portion. The front cross member has a closed section, and a front portion of the closed section extends downwardly by forward and downward inclination of a left lateral portion and a right lateral portion of the front cross member. The lower-arm support portion is formed on a lower rear portion of the left lateral portion and the right lateral portion of the front cross member. The upper side member is connected to an upper rear portion of the left lateral portion and the right lateral portion of the front cross member.
    Type: Application
    Filed: November 2, 2016
    Publication date: September 20, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Publication number: 20180265135
    Abstract: In the front part of the front sub-frame (5), provided are a sub-crash can attachment part (12) and a tension rod supporting part (14); a front vehicle body attachment part (13) is provided between the two parts; the sus-cross member (73) is provided in the front vehicle body attachment part (13) and the tension rod supporting part (14); the front-side vehicle body attaching portion (13) includes a sub crash can load transmitting member (30); and the upper face portion (21) of the front vehicle body attachment part (13) and the partition wall (33) of the sub-crash can load transferring member (30) are spaced apart in the vertical direction and extend in the longitudinal direction of the vehicle.
    Type: Application
    Filed: November 1, 2016
    Publication date: September 20, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki KOMIYA, Masaaki TANAKA
  • Publication number: 20180257710
    Abstract: To reinforce a front sub-frame in such a manner that the front sub-frame having a trapezoidal shape formed by a cross member and left and right side members extending to one side is not deformed to a rhombus shape at the one side, a front sub-frame structure includes: a rear cross member (74) coupling arm supporting parts (71, 71) supported on left and right side members (6, 6); tilt members (75) coupling left and right intermediate portions of the rear cross member (74) to rear vehicle attachment parts (M3) of the side members (6); a brace (80) coupling the left and right arm supporting parts (71, 71) to the rear vehicle attachment parts (M3); and intermediate coupling parts (91) coupling the brace (80) to intermediate portions of the tilt members (75).
    Type: Application
    Filed: November 1, 2016
    Publication date: September 13, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki KOMIYA, Masaaki TANAKA
  • Patent number: 9783234
    Abstract: A sub frame structure of a vehicle comprising a pair of side members with front ends rigidly connected to a floor frame, a rear cross member holding the vicinity of rear ends of the side members, both-side end portions of which are rigidly connected to a rear side frame, the both-side end portions of the rear cross member being positioned on an outward side, in a vehicle width direction, of the side members, a front cross member interconnecting the side members in the vehicle width direction and being positioned in front of the rear cross member, being spaced apart from the rear cross member, and a pair of upper members respectively connecting an upper portion of the rear cross member and an upper portion of the front cross member in a vehicle longitudinal direction at a position above the side member.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: October 10, 2017
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Patent number: 9682727
    Abstract: A sub frame structure of a vehicle comprises a pair of right-and-left side members and a front cross member interconnecting the side members in a vehicle width direction. The side member includes a front support bracket and a rear member holding member which are arranged along the vehicle longitudinal direction and to which a front connection portion and a rear connection portion of the upper-side lower arm are pivotally connected, and comprises a front part positioned in front of the front support bracket. Herein, the front part of the side member is rigidly connected to a floor frame of a vehicle body at its front end and configured in a long shape such that the front part extends obliquely forward and outward, in the vehicle width direction, from a position where the front support bracket is provided.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: June 20, 2017
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Publication number: 20160207570
    Abstract: A sub frame structure of a vehicle comprising a pair of side members with front ends rigidly connected to a floor frame, a rear cross member holding the vicinity of rear ends of the side members, both-side end portions of which are rigidly connected to a rear side frame, the both-side end portions of the rear cross member being positioned on an outward side, in a vehicle width direction, of the side members, a front cross member interconnecting the side members in the vehicle width direction and being positioned in front of the rear cross member, being spaced apart from the rear cross member, and a pair of upper members respectively connecting an upper portion of the rear cross member and an upper portion of the front cross member in a vehicle longitudinal direction at a position above the side member.
    Type: Application
    Filed: January 4, 2016
    Publication date: July 21, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Publication number: 20160207575
    Abstract: A sub frame structure of a vehicle comprises a pair of right-and-left side members and a front cross member interconnecting the side members in a vehicle width direction. The side member includes a front support bracket and a rear member holding member which are arranged along the vehicle longitudinal direction and to which a front connection portion and a rear connection portion of the upper-side lower arm are pivotally connected, and comprises a front part positioned in front of the front support bracket. Herein, the front part of the side member is rigidly connected to a floor frame of a vehicle body at its front end and configured in a long shape such that the front part extends obliquely forward and outward, in the vehicle width direction, from a position where the front support bracket is provided.
    Type: Application
    Filed: January 6, 2016
    Publication date: July 21, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Patent number: 9096276
    Abstract: A front subframe structure includes a pair of left and right side members extending in a vehicle front-rear direction, a center cross member of a closed cross-section structure extending in a vehicle-width direction to couple the a pair of left and right side members together, an inclined member having a pair of left and right inclined portions extending obliquely, in a plan view, outward in a vehicle-widthwise direction from a rear portion of a vehicle-widthwise middle portion of the center cross member, and a mount attaching portion of a powertrain mount housed in the center cross member and located behind a front edge of the center cross member and in front of a coupling portion between the inclined member and the center cross member.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: August 4, 2015
    Assignee: Mazda Motor Corporation
    Inventor: Katsuyuki Komiya
  • Patent number: 9085329
    Abstract: Disclosed is an automotive rear vehicle body structure comprising: a rear subframe (21) having right and left side member segments (22), and a cross member segment (23) coupling the side member segments (22) together; and a rear suspension supported by the rear subframe (21). The cross member portion (23) has right and left lateral portions (23S) each composed a pipe-like shaped member extending vehicle-widthwise inwardly and downwardly from each of the right and left side member segments (22), and a central portion (23C) composed of a pipe-like shaped member coupling the lateral portions (23S) together. The central portion (23C) is disposed at a height position below a vertically middle position between an upper-arm support section (28) and a lower-arm support section (29).
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 21, 2015
    Assignee: Mazda Motor Corporation
    Inventor: Katsuyuki Komiya
  • Patent number: 9079620
    Abstract: A rear subframe comprises: a pair of right and left side member segments; and a front cross member segment and a rear cross member segment each coupling the side member segments together. The rear cross member segment has: a central portion; and a front branch portion and a rear branch portion branched forwardly and rearwardly from each of vehicle-widthwise outer ends of the central portion, while extending in the vehicle width direction. Each of the side member segments has a bent portion with its axis extending in a curved manner between a coupling portion between the front branch portion and the side member segments, and a coupling portion between the rear branch portion and the side member segments. The bent portion has a wall thickness set to be less than that of a region of the side member segment located forward of the bent portion.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: July 14, 2015
    Assignee: Mazda Motor Corporation
    Inventor: Katsuyuki Komiya
  • Patent number: 9010849
    Abstract: A front subframe structure for an automotive vehicle comprises: a pair of right and left side members each provided with an arm support member for supporting a suspension arm is mounted; a cross member disposed between the left and right side members to couple together respective locations in the side members at each of which the arm support member is provided; and an oblique member extending from central portion of the cross member, in each of right and left directions of the vehicle and obliquely rearwardly and outwardly in the vehicle width direction, wherein each of the side members has a rear end joined to a rear portion of a respective one of the oblique members, and wherein the rear portion of the oblique member is provided with a tunnel-lower-frame coupling portion couplable to a tunnel lower frame, and a floor frame attaching portion attachable to a floor frame.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: April 21, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Katsuyuki Komiya, Masanobu Kobashi, Manabu Yamamoto, Jun Inoue, Satoshi Obata
  • Publication number: 20150021115
    Abstract: A front subframe structure includes a pair of left and right side members extending in a vehicle front-rear direction, a center cross member of a closed cross-section structure extending in a vehicle-width direction to couple the a pair of left and right side members together, an inclined member having a pair of left and right inclined portions extending obliquely, in a plan view, outward in a vehicle-widthwise direction from a rear portion of a vehicle-widthwise middle portion of the center cross member, and a mount attaching portion of a powertrain mount housed in the center cross member and located behind a front edge of the center cross member and in front of a coupling portion between the inclined member and the center cross member.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 22, 2015
    Applicant: MAZDA MOTOR CORPORATION
    Inventor: Katsuyuki Komiya