Patents by Inventor Tomonori Tsuchiya

Tomonori Tsuchiya 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).

  • Overdischarge detection device and overdischarge prevention device for a chargeable electric cell, operable with a variable threshold voltage to prohibit discharge in accordance with relative weight of a load
    Patent number: 5705913
    Abstract: In an overdischarge detection device which is connected between positive and negative load current lines for connecting a chargeable electric cell with a load and which comprises an overdischarge detection circuit including a voltage comparing section for detecting that a cell voltage of the electric cell falls below a threshold voltage to prohibit discharging operation, an adjusting circuit connected to the overdischarge detection circuit detects a particular voltage of a specified part that corresponds to a load current varying in response to relative weight of the load to adjust the threshold voltage on the basis of the particular voltage. Preferably, the adjusting circuit may be constructed so as to clamp the threshold voltage when the particular voltage is higher than a predetermined voltage.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: January 6, 1998
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Masaru Takeuchi, Yasuhisa Higashijima, Tomonori Tsuchiya
  • Baby chair
    Patent number: D337665
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: July 27, 1993
    Assignee: Combi Corporation
    Inventor: Tomonori Tsuchiya
  • Baby stroller
    Patent number: D359936
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: July 4, 1995
    Assignee: Combi Corporation
    Inventors: Hayato Takahashi, Hiroyuki Nishio, Tomonori Tsuchiya