Patents by Inventor Hiroaki Nagamatsu

Hiroaki Nagamatsu 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: 5202219
    Abstract: The present invention provides an image receiving material used for silver complex diffusion transfer process in combination with a photosensitive material. This image receiving material comprises a support and, provided thereon at least an image receiving layer containing physical development nuclei and an uppermost layer containing substantially no physical development nuclei, wherein the uppermost layer contains at least 0.8 g/m.sup.2 of hydrophilic colloid in terms of solid content and ratio of solid content of hydrophilic colloid in the uppermost layer to solid content of hydrophilic colloid in the image receiving layer is more than 1.0. Preferably, the image receiving layer contains substantially no hardener and the uppermost layer contains a hardener.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: April 13, 1993
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Tatsuhito Taniguchi, Hiroaki Nagamatsu, Susumu Baba, Kazuhiko Sunada
  • Patent number: 5200296
    Abstract: Provided is an image receiving material for silver complex diffusion transfer process which comprises a support, an image receiving layer provided on the support and an upper layer provided on the image receiving layer wherein physical development nuclei are distributed densely in the vicinity of the surface of the support and gradually diminishing towards the upper layer and a color toning agent is contained densely in the upper layer and gradually diminishing towards the surface of the support and the physical development nuclei and the color toning agent are thus mutually distributed. The image receiving material is produced by coating on a support a hydrophilic colloid coating solution for image receiving layer which contains physical development nuclei and contains substantially no color toning agent and thereon at least one hydrophilic colloid coating solution which contains at least one color toning agent and contains substantially no physical development nuclei.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: April 6, 1993
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Hiroaki Nagamatsu, Susumu Baba, Tatsuhito Taniguchi
  • Patent number: 4862760
    Abstract: A shift lever assembly for an automotive transmission including a lower shift lever for engaging and operating an automotive transmission to select a desired gear stage. An upper shift lever is detachably coupled to the lower lever and serves for manual actuation to effect movement of the lower shift lever. One of the upper and lower shift levers terminates at one end in a shaft. The other of the upper and lower shift levers terminates at one end in a bore into which is received the shaft. The coupling is effected by a fastener that cams and secures the shaft in the bore. The coupling may be easily detached.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: September 5, 1989
    Assignee: Mazda Motor Corporation
    Inventors: Wataru Kuwahara, Etsuo Shirai, Hiroaki Nagamatsu, Kazuhiko Moriyama
  • Patent number: 4796489
    Abstract: A control system for controlling a steplessly variable power transmission device for a motor vehicle. The speed ratio of the transmission mechanism is based upon vehicle operating conditions, and particularly upon the vehicle speed and the engine load, either in terms of throttle setting or engine load pressure. Manual selector means are provided to select one of two control mode patterns for either economical operation or for power operation, and each of the control modes provides a different ratio of transmission input speed to output speed.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: January 10, 1989
    Assignee: Mazda Motor Corporation
    Inventors: Hiroaki Nagamatsu, Takashige Ebisumoto
  • Patent number: 4784009
    Abstract: A gear type transmission apparatus comprises a transmission case containing a plurality of gear trains and an output shaft to which an output of an engine is transmitted through the gear trains and provided with an opening at an upper portion thereof, a cover member mounted on the upper portion of the transmission case to cover the opening, a holder member formed separately from the cover member and fixed on an under surface of the cover member to be positioned at the inside of a contacting face of the cover member provided for coming into contact with an upper end face of the transmission case, and a shift rod supported by the holder member to be movable in a direction along its axis at a position above the output shaft for causing the gear trains to be in operation to transmit the output of the engine selectively.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: November 15, 1988
    Assignee: Mazda Motor Corporation
    Inventors: Kenji Sakamoto, Etsuo Shirai, Kazuhiko Moriyama, Hiroaki Nagamatsu
  • Patent number: 4665775
    Abstract: A steplessly variable transmission of a belt-pulley type of which speed ratio is controlled in accordance with the vehicle speed and the engine load. A control system is provided for controlling the speed ratio, when the engine throttle valve is fully closed for deceleration, in accordance with the vehicle speed so that the speed ratio is decreased in response to a decrease in the vehicle speed. The control system provides an engine brake effect in deceleration which changes in accordance with a change in the vehicle speed.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: May 19, 1987
    Assignee: Mazda Motor Corporation
    Inventors: Hiroaki Nagamatsu, Takashige Ebisumoto