This inventor holds 9 USPTO granted patents and 2 published patent applications. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Renesas Technology Corp., Renesas Electronics Corporation. Active years: 1995-2012.
Location History:
- Hyogo, JP (1995 - 2008)
- Itami, JP (2008)
- Tokyo, JP (2000 - 2012)
Company Filing History:



Years Active: 1995-2012
Title: Hisayasu Sato: Innovator in Semiconductor Technology
Introduction
Hisayasu Sato is a prominent inventor based in Hyogo, Japan, known for his significant contributions to semiconductor technology. With a total of 9 patents to his name, Sato has made remarkable advancements in the field, particularly in filter circuits and communication devices.
Latest Patents
One of Sato's latest patents is a filter circuit and communication semiconductor device that aims to reduce the area occupied by the circuit while maintaining a predetermined vicinity disturbance wave rejection ratio. This invention includes a voltage/current conversion circuit that converts an analog signal from voltage to current, along with a capacitor array designed for efficient signal processing. Another notable patent is a frequency mixer that prevents degradation in linearity concerning the amplitude of the input signal. This frequency mixer utilizes a first N channel MOS transistor and a differential pair of second and third N channel MOS transistors, ensuring high performance in RF signal processing.
Career Highlights
Throughout his career, Sato has worked with leading companies in the semiconductor industry, including Renesas Technology Corporation and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to develop innovative solutions that address complex challenges in communication technology.
Collaborations
Sato has collaborated with notable professionals in the field, including Hiroshi Komurasaki and Tomohiro Sano. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Hisayasu Sato's work in semiconductor technology exemplifies the spirit of innovation and dedication to improving communication devices. His contributions continue to influence the industry and inspire future advancements.