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Izumi Kawata Patents |
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Inventor: Kawata; Izumi
Address: Sagamihara, JP
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7372881 |
Semiconductor laser wavelength control device |
May 13, 2008 |
| A semiconductor laser wavelength control device capable of controlling the optical wavelength constant even if the optical output intensity of the semiconductor laser varies and permitting a reduction in overall size is to be provided.It is provided with control means which controls the |
| 6121811 |
Variable time delay circuit and method |
September 19, 2000 |
| A high resolution variable time delay circuit is disclosed. In one embodiment, a current digital to analog converter (DAC) is used to sequentially charge two capacitors having similar capacitance construction. A threshold level capacitor provides the threshold level to a comparator, |
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