Patents by Inventor Fumiya Yamada

Fumiya Yamada 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: 20240092337
    Abstract: A vehicle control apparatus includes front-wheel and rear-wheel driving systems, and a control system. The front-wheel driving system includes a first travel motor mechanically coupled to a front wheel of a vehicle and a first accumulator electrically coupled to the first travel motor. The rear-wheel driving system includes a second travel motor mechanically coupled to a rear wheel of the vehicle and a second accumulator electrically coupled to the second travel motor. The control system includes one or more processors and one or more memories communicably coupled to the one or more processors, and controls the first and second travel motors. When a difference between an SOC of the first accumulator and an SOC of the second accumulator is greater than a threshold value, the one or more processors change a torque distribution ratio between the first and second travel motors from a reference distribution ratio.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 21, 2024
    Inventors: Hiroshi KUSANO, Yoshinobu YAMAZAKI, Masami OGURI, Akihiro NABESHIMA, Yoshiyuki JIN, Takeshi YONEDA, Fumiya SATO, Keigo YAMADA, Takumi ARAKI, Shuntaro MIURA
  • Patent number: 5663943
    Abstract: A vibration damping support mechanism for a recored data reproducing apparatus is provided which allows the apparatus to be installed in either a horizontal or vertical position without shifting the tensioning direction of damper springs. Each pair of the damping springs is mounted between a main reproducing unit and an outer casing. The two damper springs are arranged to extend in the thicknesswise and depthwise directions of the main reproducing unit respectively or arranged tilting at a predetermined angle. In the horizontal position, external vibrations are absorbed by the elastic action of one of the two damper springs and thus prevented from propagating directly to the main reproducing unit. Similarly in the vertical position, such external vibrations are absorbed by the elastic action of the other damper spring and prevented from propagating directly to the same.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: September 2, 1997
    Assignee: Pioneer Electronic Corporation
    Inventors: Tatsuya Yanagisawa, Nobuo Nohtomi, Nobutaka Sawada, Fumiya Yamada, Kiyohito Kajihara, Kiyoshi Morikawa, Atsushi Kurosawa, Tomomichi Kimura, Toshiroh Yamashita
  • Patent number: 5652579
    Abstract: An electronic apparatus having two or more functions includes a nonvolatile store in which the identities of two or more keys are stored and two or more functions are classified into groups, each group being distinguished by two or more of the keys. A controller is coupled with the nonvolatile store and enables a function that is selected by operating a key, which function matches an identification number to be entered by a user.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 29, 1997
    Assignee: Sony Corporation
    Inventors: Fumiya Yamada, Satoshi Ishiguro
  • Patent number: 5650985
    Abstract: A CD player has an inner casing, a plurality of magazines provided in the casing, each of the magazines storing a plurality of CDs, a lifting device, and a movable member or casing. The movable casing has a reproducing device, a loading device for loading one of the CDs on the reproducing device, and is adapted to be lifted by the lifting device. A lock plate is slidably provided on a wall of the movable casing. A lock device is provided to drive the lock plate to engage locking teeth on the inner casing for locking the lock plate to the wall of the inner casing to prevent vertical movements of the movable member while in a playing position.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: July 22, 1997
    Assignee: Pioneer Electronic Corporation
    Inventors: Shigeo Maruyama, Fumiya Yamada, Kiyohito Kajihara, Toshinori Kaya, Jun Togashi
  • Patent number: 5532993
    Abstract: A vibration damping support mechanism for a recored data reproducing apparatus is provided which allows the apparatus to be installed in either a horizontal or vertical position without shifting the tensioning direction of damper springs. Each pair of the damping springs is mounted between a main reproducing unit and an outer casing. The two damper springs are arranged to extend in the thicknesswise and depthwise directions of the main reproducing unit respectively or arranged tilting at a predetermined angle. In the horizontal position, external vibrations are absorbed by the elastic action of one of the two damper springs and thus prevented from propagating directly to the main reproducing unit. Similarly in the vertical position, such external vibrations are absorbed by the elastic action of the other damper spring and prevented from propagating directly to the same.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: July 2, 1996
    Assignee: Pioneer Electronic Corporation
    Inventors: Tatsuya Yanagisawa, Nobuo Nohtomi, Nobutaka Sawada, Fumiya Yamada, Kiyohito Kajihara, Kiyoshi Morikawa, Atsushi Kurosawa, Tomomichi Kimura, Toshiroh Yamashita
  • Patent number: 5053901
    Abstract: A threading device for a tape recorder installed in vehicle includes a pair of slide blocks which are provided with guide rollers for drawing a tape from a tape cassette and winding the tape on a cylinder head. One of the slide blocks is abutted against a guide groove, and a tension arm is abutted against the other slide block to thereby prevent the rattling of the slide blocks due to vibration produced during operation of the vehicle.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: October 1, 1991
    Assignee: Pioneer Electronic Corporation
    Inventors: Fumiya Yamada, Akira Shimizu, Atsushi Kurosawa
  • Patent number: 5021904
    Abstract: A tape cassette push-out device for a tape recorder includes a push-out mechanism for pushing the rear face of a tape cassette (A) thereby moving the cassette to a cassette insertion opening (2) of the recorder. Before the push-out mechanism is operated, a cassette box (7) for holding the cassette is first moved from a tape driving position to a position adjacent to the backside of the cassette insertion opening. After operation of the push-out mechanism, the mechanism is retractable away from the cassette.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: June 4, 1991
    Assignee: Pioneer Electronic Corporation
    Inventors: Akira Shimizu, Atsushi Kurosawa, Fumiya Yamada
  • Patent number: 4739424
    Abstract: A cassette tape loading and ejecting mechanism in a tape player for playing back tapes using a driving force of a main motor. The mechanism includes a sun gear provided in part of a mechanism for transmitting the driving force of the main motor. A stationary ring gear is arranged coaxially with the sun gear. A carrier is mounted on a shaft coaxially with the sun gear and is engaged by friction with the sun gear. A planet gear supported by the carrier engages the sun gear and the ring gear. A slot-in type tape cassette holder is driven by the forward and reverse rotation of the carrier for loading and ejecting tape cassettes. The planet gear engages the ring gear when the main gear when the main motor rotates forwardly and the carrier is caused to turn forwardly whereby the planet gear is positioned opposite to an untoothed portion of the ring gear after a tape cassette is loaded and the carrier then stops to allow the playback of the tape continuously.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: April 19, 1988
    Assignee: Pioneer Electronic Corporation
    Inventors: Fumiya Yamada, Seiichiro Matsuki, Masahiko Kawamura, Masashi Kawamoto
  • Patent number: 4710835
    Abstract: In a head rotation mechanism in an auto-reverse type tape player, the head rotation mechanism comprising a sector gear engaging with a cam gear provided on a head lead side of a rotary head; a boss extending in the direction opposite to the rotary head side of the sector gear and having a tapered foreend; and a link mechanism for rotating the head. The link mechanism is rocked by the cam gear and equipped with a U-shaped member engaging with the boss on the sector gear. The boss on the sector gear engages with the U-shaped member of the link mechanism for rotating the head only when the rotary head is located at a release position, and the boss is out of contact with the U-shaped member when the rotary head is located ahead of the release position, whereby a reversible rotation of the single cam gear is used to change a direction of the rotary head and move the head forward.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: December 1, 1987
    Assignee: Pioneer Electronic Corporation
    Inventors: Fumiya Yamada, Seiichiro Matsuki, Masahiko Kawamura, Masashi Kawamoto