| Patent application number | Description | Published |
|---|
| 20090117419 | DRY-STATE DETECTING METHOD AND ELECTRONIC DEVICE SYSTEM FOR FUEL CELL, AND POWER CONTROL METHOD THEREFOR - Provided are a dry-state detecting method and an electronic device system for a fuel cell, which detect the dry state of an electrolyte film precisely, and a power control method for optimizing the control of a starting time on the basis of the dry state detected. The fuel cell is constituted to include an electrolyte film, and a catalyst electrode and a gas diffusion electrode disposed on the two faces of the electrolyte film. The dry-state detecting method detects the dry state on the basis of a displacement of the electrolyte film in an in-plane direction. | 05-07-2009 |
| 20090169965 | GAS-LIQUID SEPARATING APPARATUS AND LIQUID SUPPLY TYPE FUEL CELL - A gas-liquid separating apparatus includes a container | 07-02-2009 |
| 20090169975 | Electrode, Fuel Cell Electrode, Fuel Cell, and Production Method of Electrode - An electrode has a metal fiber sheet and a thin sheet metal pattern connected to the surface of the metal fiber sheet and has a line pattern that runs on the metal fiber sheet. The line pattern includes an annular pattern that is provided on the peripheral edge of the metal fiber sheet and has an inside area, and the line pattern includes a bridge portion dividing the inside area of the annular pattern. | 07-02-2009 |
| 20090233127 | FUEL CELL SYSTEM - In a viewpoint of the invention, a fuel cell system includes a fuel cell configured to generate a electric power by using fuel; a first assisting power source; a protecting circuit connected to the first assisting power source and configured to detect a failure in the first assisting power source; an auxiliary unit configured to supply the fuel to the fuel cell; a control circuit configured to control the fuel cell and the auxiliary unit; a first power converter configured to drive the control circuit by using electric power from the first assisting power source; and a first synthesizing section configured to synthesize a first electric power from the fuel cell and a second electric power from the first assisting power source to supply a synthesized power to a load. | 09-17-2009 |
| 20090263698 | FUEL CELL SYSTEM AND FUEL CELL - A fuel cell system which allows uniform fuel distribution to respective fuel cells, comprising: a plurality of fuel cells | 10-22-2009 |
| 20100286949 | POSITION DETERMINATION SYSTEM, TRANSMISSION DEVICE AND RECEPTION DEVICE, AND POSITION DETERMINATION METHOD - Positions of a plurality of transmission devices are precisely detected by a direct wave arriving first at a reception device without being affected by other ultrasonic signals from the transmission device. | 11-11-2010 |
| 20110015880 | ULTRASONIC PROPAGATION TIME MEASUREMENT SYSTEM - High-quality and high-speed electronic pen drawing performance is ensured without being affected by noise of an ultrasonic signal which is generated by an apparatus using ultrasonic such as a motion detector. In an ultrasonic receiver for use in ultrasonic propagation time measurement, an external environment noise is measured to first determine a frequency. Thereafter, centered around the frequency, a band elimination filter having a several kHz band is structured as software to again measure an external environment noise. This sequence is repeated until a signal intensity lowers below a predetermined value. When the signal intensity fails to lower below the predetermined value even after a predetermined number of repetitions of the sequence, a transmission output on the side of an electronic pen as an ultrasonic transmission source is increased or an ultrasonic oscillation frequency is changed. | 01-20-2011 |
| 20110116345 | POSITION DETECTION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, POSITION DETECTION METHOD AND POSITION DETECTION PROGRAM - To enable precise calculation of a propagation time of a direct wave which arrives the earliest from an ultrasonic emission source without being affected by a reflected wave. A plurality of ultrasonic signals generated based on a plurality of M sequences different from each other are propagated from a transmission side to a reception side, whereby the reception side executes processing of correlation between each model waveform of the plurality of M sequences and a waveform of each ultrasonic signal and detects a subsidiary peak of a correlation value appearing when both waveforms partly coincide with each other to, starting with the smallest one of subsidiary peaks detected by all the correlation processing, determine a plurality of corresponding M sequences. The transmission side selects an M sequence differing in each transmission cycle from among the determined plurality of M sequences and sends out an ultrasonic signal modulated by the selected M sequence and an electromagnetic wave signal to the reception side. The reception side calculates a value of correlation between the ultrasonic signal and a model waveform, detects a first main peak of the calculated correlation value and calculates an ultrasonic propagation time from a time point of the reception of the electromagnetic wave signal and a time point of the detection of the main peak. | 05-19-2011 |
