Patents by Inventor Koichi Aono

Koichi Aono 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).

  • Low-melting alloy and cream solder using a powder of the alloy
    Patent number: 6086683
    Abstract: Ag and Cu are added to a base material of a Sn/Pb/Bi composition. Since Bi is contained in greater quantities in Sn/Pb, the alloy has a low melting point (120 to 150.degree. C.) and is surely melted at reflow temperatures from 170 to 200.degree. C. Preferably, the addition amount of Ag is from 0.1 to 5 wt % and the addition amount of Cu is from 0.05 to 1.0 wt %. A low-melting alloy having all the required performances and excellent with view points of cost and safety and a cream solder using a powder of the alloy can be obtained.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: July 11, 2000
    Assignees: Toshiba Corp., Alpha Metals of Japan Ltd.
    Inventors: Tadahiro Toki, Masayoshi Yamaguchi, Koichi Aono, Hirofumi Sakamoto, Yasuhide Ogasawara, Masuo Hotta, Akihiro Kiyosue, Takao Enomoto
  • Limited slip differential
    Patent number: 4922789
    Abstract: A limited slip differential includes a differential carrier for supporting rotatably a differential case, surrounding the differential case and first and second frictional materials and having a piston chamber connected to an outside pressure source, a first piston disposed shiftably and unrotatably in the piston chamber, a second piston disposed rotatably together with the first frictional materials and shiftably along a rotary axis of the differential case and a thrust bearing disposed between the first and second pistons.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: May 8, 1990
    Assignee: Toyota Jiodosha Kabushiki Kaisha
    Inventors: Koichi Aono, Mitsuyuki Ouchi
  • Differential control device
    Patent number: 4872373
    Abstract: A differential control device for controlling the differential of a differential gear having a limited slip differential includes a sensor for detecting drive torque, a controller for receiving the detected torque from the sensor to compare the size of the torque with a predetermined value and an actuator. The actuator is controlled by the controller to operate the limited slip differential for limiting the differential when the detected torque exceeds the predetermined value.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: October 10, 1989
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsuyuki Ouchi, Koichi Aono