Patents by Inventor Keisuke Miyoshi

Keisuke Miyoshi 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: 8276478
    Abstract: A pedal bracket (3) affixed to a dash panel (1) pivotably supports a pedal unit (2) via a first pivot shaft (13) and a pivotable lever (5) via a second pivot shaft (17). A shaft retainer (51) prevents a downward displacement of the first pivot shaft (17) under normal conditions, whereas the pivotable lever (5) goes into contact with a side member (33) of a vehicle body and pivots on the second pivot shaft (17) in a specific direction in the event of a vehicle collision, thereby thrusting and displacing the first pivot shaft (13) downward and disengaging the pedal unit (2) from the pedal bracket (3). At this time, the shaft retainer (51) draws back from underneath the first pivot shaft (13), for instance, as a result of pivoting of the pivotable lever (5) and goes into a nonrestrictive state in which the shaft retainer (51) allows a displacement of the first pivot shaft (13).
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: October 2, 2012
    Assignee: Mazda Motor Corporation
    Inventors: Masayuki Tokumo, Toshihiro Matsuoka, Keisuke Miyoshi
  • Patent number: 7415909
    Abstract: A support structure for a pedal of a vehicle pivotablly supports a pedal assembly (34) to a pedal bracket (38) mounted on a vehicle dash panel (6).
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: August 26, 2008
    Assignees: Mazda Motor Corporation, Kuroishi Iron Works Co., Ltd.
    Inventors: Keisuke Miyoshi, Kazunori Tomonou, Takeshi Murayama, Fumihiko Nomura, Hiroyuki Utsumi, Tetsuo Hiura, Katsuhiko Yamamoto
  • Publication number: 20070234841
    Abstract: A pedal bracket (3) affixed to a dash panel (1) pivotably supports a pedal unit (2) via a first pivot shaft (13) and a pivotable lever (5) via a second pivot shaft (17). A shaft retainer (51) prevents a downward displacement of the first pivot shaft (17) under normal conditions, whereas the pivotable lever (5) goes into contact with a side member (33) of a vehicle body and pivots on the second pivot shaft (17) in a specific direction in the event of a vehicle collision, thereby thrusting and displacing the first pivot shaft (13) downward and disengaging the pedal unit (2) from the pedal bracket (3). At this time, the shaft retainer (51) draws back from underneath the first pivot shaft (13), for instance, as a result of pivoting of the pivotable lever (5) and goes into a nonrestrictive state in which the shaft retainer (51) allows a displacement of the first pivot shaft (13).
    Type: Application
    Filed: April 5, 2007
    Publication date: October 11, 2007
    Inventors: Masayuki Tokumo, Toshihiro Matsuoka, Keisuke Miyoshi
  • Patent number: 7267194
    Abstract: A second pedal bracket 25 that supports a brake pedal 11 by a pedal support shaft 27 is swingably connected, via a bracket support shaft 28, to an upper part of a first pedal bracket 20 fixed to a dashpanel 3. Both the first and second pedal brackets 20 and 25 and a restricting/derestricting member 32 are connected to each other by a bolt 37 to restrict swinging of the second pedal bracket 25. Upon collision of an automobile, a rear end wall 39 of the restricting/derestricting member 32 abuts against an instrument member 7, thus moving the member 32 and bolt 37 relatively forward to derestrict the second pedal bracket 25. Then, an arm 40 extended upward from the second pedal bracket 25 abuts against the instrument member 7, thus rotating the second pedal bracket 25 to displace the pedal support shaft 27 backward.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: September 11, 2007
    Assignee: Mazda Motor Corporation
    Inventor: Keisuke Miyoshi
  • Publication number: 20050217264
    Abstract: A support structure for a pedal of a vehicle pivotablly supports a pedal assembly (34) to a pedal bracket (38) mounted on a vehicle dash panel (6).
    Type: Application
    Filed: March 17, 2005
    Publication date: October 6, 2005
    Applicants: MAZDA MOTOR CORPORATION, KUROISHI IRON WORKS CO., LTD.
    Inventors: Keisuke Miyoshi, Kazunori Tomonou, Takeshi Murayama, Fumihiko Nomura, Hiroyuki Utsumi, Tetsuo Hiura, Katsuhiko Yamamoto
  • Publication number: 20050045406
    Abstract: A second pedal bracket 25 that supports a brake pedal 11 by a pedal support shaft 27 is swingably connected, via a bracket support shaft 28, to an upper part of a first pedal bracket 20 fixed to a dashpanel 3. Both the first and second pedal brackets 20 and 25 and a restricting/derestricting member 32 are connected to each other by a bolt 37 to restrict swinging of the second pedal bracket 25. Upon collision of an automobile, a rear end wall 39 of the restricting/derestricting member 32 abuts against an instrument member 7, thus moving the member 32 and bolt 37 relatively forward to derestrict the second pedal bracket 25. Then, an arm 40 extended upward from the second pedal bracket 25 abuts against the instrument member 7, thus rotating the second pedal bracket 25 to displace the pedal support shaft 27 backward.
    Type: Application
    Filed: June 9, 2004
    Publication date: March 3, 2005
    Applicant: MAZDA MOTOR CORPORATION
    Inventor: Keisuke Miyoshi
  • Patent number: 6615685
    Abstract: To avoid a steering shaft changing its orientation during a frontal collision, an automotive pedal support structure equipped with an operating pedal is disposed behind a dash panel of an automotive vehicle and the steering shaft comprising a universal joint disposed in the proximity of the operating pedal. Provided are a first bracket including first and second side wall portions, a connecting portion and a second bracket pivoted to the first bracket so as to be rotated during the frontal collision. The operating pedal is pivoted to the second bracket. During the frontal collision, the universal joint is longitudinally moved relative with respect to the first bracket while contacting with side surfaces of the first and second side wall portions.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: September 9, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Keisuke Miyoshi, Hiroyuki Utsumi, Masamitsu Tanaka
  • Patent number: 6539823
    Abstract: In a supporting structure for a brake pedal assembly pivotally mounted for rocking motion on the rear surface of a dash panel of an automobile through a first bracket, a front portion of the first bracket is fixed to the dash panel and the rear end thereof is coupled to a second bracket, fastened to a cowl member in a cabin, so as to be disengageable by the application of a load of automobile collision above a predetermined level. The brake pedal assembly is pivotally mounted for rocking motion to the first bracket. At the lower end of the second bracket, a pedal lever stop is provided which abuts against the rear end of the brake pedal assembly when the first and second brackets are disengaged in an automobile collision so that the brake pedal assembly moves backward. The brake pedal assembly is restrained by abutment on the pedal lever stop against backward movement.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: April 1, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Kazunori Tomono, Shuji Sanagi, Kouki Makino, Keisuke Miyoshi, Hideaki Tanaka, Kazutaka Ishikura
  • Patent number: 6481311
    Abstract: In a supporting structure for a brake pedal assembly pivotally mounted for rocking motion on the rear surface of a dash panel of an automobile through a first bracket, a front portion of the first bracket is fixed to the dash panel and a rear-end upper portion thereof is coupled to a second bracket fastened to an instrument panel member as a car body member in a cabin so as to be disengageable by the application of a load of automobile collision above a predetermined level. The brake pedal assembly is pivotally mounted for rocking motion to the first bracket. On the underside of the second bracket, an inclined guide surface is provided which abuts against the upper end of the brake pedal assembly when the coupling between the first and second brackets is disengaged in an automobile collision so that the first bracket moves backward together with the brake pedal assembly. The inclined guide surface guides the brake pedal assembly in its downward movement through its abutment against the inclined guide surface.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 19, 2002
    Inventors: Shuji Sanagi, Kouki Makino, Keisuke Miyoshi, Kazunori Tomono, Hideaki Tanaka, Kazutaka Ishikura
  • Publication number: 20020020248
    Abstract: To avoid a steering shaft changing its orientation during a frontal collision, an automotive pedal support structure equipped with an operating pedal disposed behind a dash panel of an automotive vehicle and the steering shaft comprising a universal joint disposed in the proximity of the operating pedal is disclosed. Provided are a first bracket including first and second side wall portions, a connecting portion and a second bracket pivoted to the first bracket so as to be rotated during the frontal collision. The operating pedal is pivoted to the second bracket. During the frontal collision, the universal joint is longitudinally moved relative with respect to the first bracket while contacting with side surfaces of the first and second side wall portions.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 21, 2002
    Inventors: Keisuke Miyoshi, Hiroyuki Utsumi, Masamitsu Tanaka
  • Patent number: 6192770
    Abstract: A shifting arrangement for an automatic transmission with manual gear shift feature has a control member which is operative to connect and disconnect operational linkage between a shift lever and a shift cable connected to a manual valve in a hydraulic control circuit. The control member is supported to slide relatively to the shift lever while the shift lever is operated between driving positions including an automatic gear shift selecting position so as that the shift lever remains operationally connected to the shift cable and is coupled to the shift lever when the shift lever is moved in the transverse direction from the automatic gear shift selecting position to a manual gear shift selecting position so as to operationally disconnect the shift lever from the shift cable. The shift lever is movable relative to the control member in the transverse direction when the control member is connected to the shift cable.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: February 27, 2001
    Assignees: Mazda Motor Corporation, Delta Kogyo Co. Ltd.
    Inventors: Keisuke Miyoshi, Fumihiko Hiasa
  • Patent number: 5946976
    Abstract: A shift lever of a shifting arrangement for manually shiftable automatic transmission is movable between a drive range position in which the transmission is automatically shifted and a manual shift position in which the shift lever is shiftable forward or backward to cause a manual shift of the transmission. The shift lever is brought into engagement with an actuator member when moved to the manual shift position when a lock/release button is depressed before movement of the shift lever to the manual shift position and subsequently released with an intention to cause a manual shift after the movement of the shift lever to the manual shift position. A shift switch is actuated by the actuator member forced by the shift lever in response to operation of the shift lever in the manual shift position.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 7, 1999
    Assignee: Mazda Motor Corporation
    Inventors: Keisuke Miyoshi, Hirokazu Nishikado, Yasushi Yanai
  • Patent number: 5427411
    Abstract: A steering apparatus support structure includes a steering support member extending transversely in a vehicle body and secured to rigid side components of the vehicle body which are likely free from deformation during a frontal end collision and a support bracket device secured to and supported by the steering support member for supporting forward and rearward portions of the steering column. The support bracket device is releasably linked to a vehicle body part which can be deformed backward during a frontal end collision, and the vehicle body part is allowed to be disconnected from the support bracket device when backward deformation is caused in the vehicle body part.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: June 27, 1995
    Assignee: Mazda Motor Corporation
    Inventors: Yosuke Iwasaki, Toshiteru Yoshimura, Masashi Ohtsuka, Kiyoshi Hayashi, Keisuke Miyoshi, Toshiaki Ogawa
  • Patent number: 5310218
    Abstract: A steering wheel structure includes a steering wheel ring, a first spoke extending downward from a steering shaft and carrying the steering wheel ring on the steering shaft and, an air bag case disposed on a tip end portion of the steering shaft. An air bag received in the air bag is case in a folded state and an inflator is provided for inflating the air bag with gas. An igniter is used to ignite a material in the inflator to produce the gas. A displacing device is provided for allowing the spoke and lower portion of the steering wheel ring to be displaced when subjected to a forward force beyond a predetermined value. An impact energy therefore, can be effectively and safely absorbed.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: May 10, 1994
    Assignee: Mazda Motor Corporation
    Inventors: Keisuke Miyoshi, Akira Marumoto, Michitaka Ohta
  • Patent number: 5280956
    Abstract: A structure for supporting a collapsible steering column of a vehicle is covered partially by a column cover between an instrument panel and a steering wheel. The steering column passes through an opening formed in the instrument panel and extends towards a driver's seat. The column includes a meter cover for covering meters installed in the instrument panel. The meter cover is shaped so as to define an upper portion of the opening and is integrally formed with a knee pad adapted to be hit and forced, by knees of a driver thrown out of the driver's seat upon a collision of the vehicle, to move the meter cover upwards. Such expands the opening sufficiently to eliminate crushing of the column cover against the meter panel.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: January 25, 1994
    Assignee: Mazda Motor Corporation
    Inventors: Matsuhiro Tanaka, Keisuke Miyoshi
  • Patent number: 5052240
    Abstract: A structural arrangement for supporting a tilt steering device includes a steering column into which a steering shaft coupled at one end thereof with a steering wheel, is inserted so as to be rotatable. A lower steering column bracket is attached to the lower end portion of the steering column, and a connecting bracket is attached to the vehicle body, facing the lower steering column bracket. A shaft supports the lower steering column bracket to the connecting bracket so that each bracket is able to rotate with respect to each other. A rotation blocking element is located between the lower steering column bracket and the connecting bracket so that the bracket does not rotate with respect to each other when a force, which is larger than a predetermined force, is applied between each bracket.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: October 1, 1991
    Assignee: Mazda Motor Corporation
    Inventors: Keisuke Miyoshi, Shuji Sanagi, Michio Kado
  • Patent number: 4889093
    Abstract: A throttle opening controller provided between an accelerator pedal and an engine throttle of an automobile. It has an output shaft driven by a motor, a motor lever fixedly mounted on the output shaft and ring members including an accelerator ring, a motor ring and a throttle ring all rotatably mounted on the output shaft. The accelerator ring is connected to the accelerator pedal and the throttle ring is connected to the throttle through wires. The motor lever is controlled by a traction control device. When the traction control is not activated, the motor lever is kept in its FULL-OPEN position, allowing the movement of the accelerator pedal to be transmitted as it is to the throttle through the accelerator ring, the motor ring coupled to the accelerator ring through a spring, and the throttle ring adapted to turn in the throttle-opening direction by and with the motor ring.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: December 26, 1989
    Assignees: Sumitomo Electric Industries, Ltd., Mazada Motor Corporation
    Inventors: Yukinori Nishiyama, Hideaki Fujioka, Hisaaki Yamaguchi, Toshiki Ikeda, Keisuke Miyoshi
  • Patent number: 4361382
    Abstract: A translucent projection screen for a rear-type image projection system comprising a flat plate or sheet of transparent resin into which are uniformly dispersed or distributed spherical glass beads, which are light diffusing materials. Such screen as described above is fabricated by dispersing or distributing spherical glass beads into a transparent resin, extruding and cutting the resin into pellets and forming these pellets into a flat plate or sheet by compression molding. A translucent projection screen having a Fresnel lens surface and a lenticular lens surface can be also molded by one step.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: November 30, 1982
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keisuke Miyoshi, Kenshiro Sumi
  • Patent number: 4232247
    Abstract: A projection tube projects in front a visible light image produced by irradiating a target having a fluorescent screen formed on one surface thereof with an electron beam emitted from an electron gun. The projection tube includes an X-ray shield disposed to cover the surface of the target excluding the fluorescent screen, whereby the X-ray generated by irradiating the fluorescent screen on the target with the electron beam are shielded to prevent the transmission of the X-rays to the front of the projection tube, and also the X-ray shield has the effect of dissipating the heat from the target and simplifying the target positioning operation in the manufacture of projection tubes.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: November 4, 1980
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Matsuo Ochi, Keisuke Miyoshi
  • Patent number: 4032968
    Abstract: A television image projecting system for projecting a television image on a screen at a magnified scale includes a plurality of projector systems of different colors sealed in one cathode ray tube. Electron beams of the projector systems are simultaneously deflected by a common deflecting device and spherical reflecting mirrors of the projecting systems are disposed closely to each other to partially overlap each other, and the overlapped portions are removed. The plurality of projector systems are in-line arranged, whereby color-stability and color balance over a wide range are attained.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: June 28, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keisuke Miyoshi, Toshitaka Yukumoto