This inventor holds 2 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1976-1977.
Company Filing History:
Years Active: 1976-1977
Title: Hirozi Shoyama: Innovator in Frequency Conversion Technology
Introduction
Hirozi Shoyama is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of frequency conversion technology, holding a total of 2 patents. His work has been instrumental in advancing the capabilities of communication systems.
Latest Patents
Shoyama's latest patents include a "Rat-race mixer circuit" and a "Multi-channel frequency converter having automatic control." The rat-race mixer circuit utilizes a loop-shaped transmission line created by microstrip lines on a substrate. This innovative design allows for effective frequency conversion of high-frequency signals. The multi-channel frequency converter is designed to frequency-convert multi-channel broadcast signals, featuring a local oscillator that generates a single oscillation frequency. This device automatically controls the oscillation frequency based on the signals it receives, enhancing the efficiency of broadcast communications.
Career Highlights
Hirozi Shoyama is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies. His work at Hitachi has allowed him to collaborate with other talented engineers and researchers, furthering the impact of his inventions in the industry.
Collaborations
Some of Shoyama's notable coworkers include Noboru Usami and Chuichi Sodeyama. Their collaborative efforts have contributed to the success of various projects within the company.
Conclusion
Hirozi Shoyama's contributions to frequency conversion technology exemplify the innovative spirit of modern engineering. His patents reflect a commitment to enhancing communication systems, making him a significant figure in his field.