Company Filing History:
Years Active: 1993-1996
Title: Ayako Hirata: Innovator in Semiconductor Technology
Introduction
Ayako Hirata is a prominent inventor based in Chigasaki, Japan. She has made significant contributions to the field of semiconductor technology, holding two patents that showcase her innovative spirit and technical expertise.
Latest Patents
One of her latest patents is a frequency multiplier circuit. This invention includes an input buffer circuit that supplies multiple signals in response to an input signal. A delay line, composed of several delay cells connected in series, delays the signals from the input buffer circuit. A phase-locked loop (PLL) circuit connected to the delay line features a level converter that outputs a control signal to manage the delay time of the delay line. The output signal generation circuit produces a signal with a multiplied frequency, ensuring that the waveform of the output signal from the input buffer circuit matches that of each delay cell's output. This design results in a signal with a fixed duty ratio.
Another notable patent is a semiconductor integrated circuit capable of compensating errors. In this invention, the gate of a first P-channel transistor in a comparator receives an input signal, while a second P-channel transistor is supplied with a reference voltage. The output terminal of the first comparator connects to an output circuit, and the second comparator outputs a voltage equal to the standby time output voltage of the first comparator. This voltage is then supplied to a third comparator, which controls the first P-channel transistors based on the difference voltage between the output voltages, thereby automatically adjusting the standby time output voltage.
Career Highlights
Ayako Hirata is currently employed at Kabushiki Kaisha Toshiba, where she continues to develop innovative technologies in the semiconductor industry. Her work has significantly impacted the efficiency and performance of electronic devices.
Collaborations
She has collaborated with notable coworkers, including Kazuhiko Kasai and Shinji Fujii, contributing to various projects that enhance semiconductor technology.
Conclusion
Ayako Hirata's contributions to semiconductor technology through her patents reflect her dedication to innovation and excellence in her field. Her work continues to influence the development of advanced electronic systems.