Patents by Inventor Tadahiko Taniguchi

Tadahiko Taniguchi 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).

  • Cathode-to-cathode fuel cell stacks
    Patent number: 7081313
    Abstract: A plurality of fuel cell stacks (8, 8a, 9, 9a) have their cathode ends (11, 12) contiguous with either a common current collector (15a–15d) or respective current collectors (15a, 15b) which may be separated by electrical isolation (27a, 27b). The cathode-to-cathode relationship protects the cathode of each of the stacks from cold ambient environments, thereby permitting improved cold starts and mitigation of performance loss as a result of cold starts as well as freeze/thaw cycles. Heaters (30, 30a–30d) may be provided in current collectors, or in or between electrical isolation. Four stacks may share one current collector, or each may have its own current collector.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: July 25, 2006
    Assignee: UTC Fuel Cells, LLC
    Inventors: Gennady Resnick, Jung S. Yi, Tadahiko Taniguchi, Akira Maekawa
  • Cathode-to-cathode fuel cell stacks
    Publication number: 20060068235
    Abstract: A plurality of fuel cell stacks (8, 8a, 9, 9a) have their cathode ends (11, 12) contiguous with either a common current collector (15a-15d) or respective current collectors (15a, 15b) which may be separated by electrical isolation (27a, 27b). The cathode-to-cathode relationship protects the cathode of each of the stacks from cold ambient environments, thereby permitting improved cold starts and mitigation of performance loss as a result of cold starts as well as freeze/thaw cycles. Heaters (30, 30a-30d) may be provided in current collectors, or in or between electrical isolation. Four stacks may share one current collector, or each may have its own current collector.
    Type: Application
    Filed: September 27, 2004
    Publication date: March 30, 2006
    Inventors: Gennady Resnick, Jung Yi, Tadahiko Taniguchi, Akira Maekawa