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| Number | Title | Issue Date |
| 7043119 | Fiber collimator array An optical fiber collimator array includes an optical fiber array block and a microlens array substrate. The optical fiber array block includes an angled surface and is configured to receive and retain a plurality of individual optical fibers, which carry optical si... | 05/09/2006 |
| 6862383 | Arrayed optical device An arrayed optical device includes a first optical fiber collimator array, a second optical fiber collimator array and an optical chip. The first optical fiber collimator array includes a first optical fiber array block and a first microlens array substrate. The sec... | 03/01/2005 |
| 6625350 | Fiber collimator array An optical fiber collimator array includes an optical fiber array block and a microlens array substrate. The optical fiber array block includes an angled surface and is configured to receive and retain a plurality of individual optical fibers, which carry... | 09/23/2003 |
| 5173178 | Water purifying apparatus with timed discharge after non-use periods An under-sink type water purifier with a water-tap portion connected to a purified-water outlet of the purifier having a sensor for sensing an object to issue a signal, and a solenoid valve for starting and stopping the discharge of purified water from th... | 12/22/1992 |
| 4988972 | Method for transmitting and receiving signals over transmission power lines A transmission signal sending and receiving method using the steps of setting the reference channel and data channels in each cycle of the AC voltage wave for transmission in the sending and receiving means, superposing the reference transmission signal o... | 01/29/1991 |
| 4744093 | Method of detecting phase pulse signals from an AC distribution line A method of detecting the levels of phase pulse signals involves the establishment of a pilot channel in addition to channels into which phase pulse signals are injected. Prior to the injection of the phase pulse signals, a transmitter injects a pilot sig... | 05/10/1988 |
| 4563679 | Carrier control method by using phase-pulse signals An address discrimination channel and terminal selection channels are established in the low-noise region of a first one of two succeeding cycles of an alternating current carrier wave, whereas returning channels are established in the low-noise region of... | 01/07/1986 |
| 4092590 | Electronic three-phase four-wire system watt-hour meter An electronic three-phase four-wire system watt-hour meter equipped with a single operational circuit which multiplies the voltage and the current of each phase of a three-phase alternating current power source of which electric energy is to be measured. ... | 05/30/1978 |
