Patents by Inventor Yoshimasa Tahara

Yoshimasa Tahara 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: 7090279
    Abstract: The present invention provides a man-driven vehicle equipped with a cover structure practically covering a whole of the vehicle wherein the cover structure is provided with an openable and closable door way substantially comprising a door, a detachable cover, a rotatable cover, and a slide cover cooperating one with another so as to facilitate a driver to get on or off the vehicle. The cover structure additionally comprises a ground contacting skirt and a floor panel so that the vehicle can be comfortably driven even in adverse weather with the cover structure closed and, particularly in fine weather, the vehicle also can be driven with the cover structure opened.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: August 15, 2006
    Assignee: Shirouma Saiensu Kabushiki Kaisha
    Inventor: Yoshimasa Tahara
  • Patent number: 7066292
    Abstract: An apparatus of foot pedal working type for health maintenance equipped with a DC generator wherein electric current generated by the DC generator adapted to be driven by foot pedal working force is supplied to an electric device via a DC/DC converter, characterized in that the generated electric current supplied from the DC/DC converter to the electric device is controlled to increase or decrease and thereby a reaction force necessary for foot pedal working causing the DC generator to generate the electric current is controlled to increase or decrease.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: June 27, 2006
    Assignee: Shirouma Saiensu Kabushiki Kaisha
    Inventor: Yoshimasa Tahara
  • Publication number: 20060070784
    Abstract: In an electrically assisted cycle, a rotor shaft (61a) of an electric generator/motor (61) is connected to a transmitting device (M) mounted between a crankshaft (17) and a rear wheel (10r); a clutch (46) is incorporated in a transmitting path between the electric generator/motor (61) and the rear wheel (10r) to enable the transmitting path to be opened or closed as desired; and a mode switchover means (91, 92, 99) is mounted, which is capable of being switched over, as desired, between an electrically assisting mode in which a power is generated in the electric generator/motor (61) and a charging mode in which an electric power generated in the electric generator/motor (61) due to a back load to the rotor shaft (61a) is charged in the battery (90).
    Type: Application
    Filed: December 2, 2004
    Publication date: April 6, 2006
    Inventor: Yoshimasa Tahara
  • Publication number: 20050001403
    Abstract: Here is disclosed an apparatus 30 of foot pedal working type for health maintenance equipped with a DC generator 3 wherein electric current generated by the DC generator 3 adapted to be driven by foot pedal working force 1 is supplied to an electric device 4 via a DC/DC converter, characterized in that the generated electric current supplied from the DC/DC converter to the electric device 4 is controlled to increase or decrease and thereby a reaction force 1 necessary for foot pedal working causing the DC generator 3 to generate the electric current is controlled to increase or decrease.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 6, 2005
    Inventor: Yoshimasa Tahara
  • Publication number: 20040251715
    Abstract: The present invention provides a man-driven vehicle equipped with a cover structure practically covering a whole of the vehicle wherein the cover structure is provided with an openable and closable door way substantially comprising a door 6, 506, a detachable cover 112, a rotatable cover 212, 312, 403, and a slide cover 313 cooperating one with another so as to facilitate a driver to get on or off the vehicle. The cover structure additionally comprises a ground contacting skirt 530 and a floor panel 617 so that the vehicle can be comfortably driven even in adverse weather with the cover structure closed and, particularly in fine weather, the vehicle also can be driven with the cover structure opened.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 16, 2004
    Inventor: Yoshimasa Tahara
  • Patent number: 5866009
    Abstract: The invention aims to provide an apparatus for purifying water containing organic halides therein improved so as to substantially achieve perfect removal of organic halides from water which has conventionally been considered to be impossible. The object set forth above is achieved, according to the invention, by an apparatus for purifying water containing organic halides therein characterized in that particles, fibers, nonwoven fabric, porous body or sintered body containing hydroxycarboxylic acid or polymer thereof having a chemical structure expressed by general formula: ##STR1## where R1-R6 are identical or different and represent hydrogen atom, hydroxyl-, carboxyl-, amino-, cyano- or alkyl-group having 1-5 carbons, p represents a natural number 1-10, and q and r represent an integer 0-10) as a main ingredient is used as organic halide adsorbent; and a residual concentration of organic halides in water can be decreased to the order of ppb.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: February 2, 1999
    Inventor: Yoshimasa Tahara
  • Patent number: 4901435
    Abstract: Here is disclosed a cutter lid for a container hermetically filled with fluid content such as liquid food, e.g., stew, or granular food, e.g., table salt, characterized by that there is provided a cutter member including a knife edge adapted to cut into a top cover of the container as a foldable and rotatable grip is folded upwards. Upon raising the cutter member with the grip held, the knife edge of said cutter member cuts into the top cover of the container and rotation of the grip opens the top cover. In contrast with the pull-open type cutter lid of prior art, there is produced no force causing the container to be vertically moved and therefore the top cover of the container can be opened without any splashing of the fluid content. Furthermore, the rotatable disc provided on the upper side of the top cover to rotate the cutter member serves also as reinforcing means and decorative means for the top cover.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: February 20, 1990
    Assignees: Ajinomoto Inc., Shirouma Plastics Kogyo Inc.
    Inventor: Yoshimasa Tahara
  • Patent number: D495277
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: August 31, 2004
    Assignees: Shirouma Saiensu Kabushiki Kaisha
    Inventor: Yoshimasa Tahara
  • Patent number: D495627
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: September 7, 2004
    Assignees: Shirouma Saiensu Kabushiki Kaisha
    Inventor: Yoshimasa Tahara