Location History:
- Kodaira, JA (1977)
- Kodaira, JP (1980)
- Iruma, JP (1984)
Company Filing History:
Years Active: 1977-1984
Title: Kouji Houkawa: Innovator in Superconductive Technology
Introduction
Kouji Houkawa is a notable inventor based in Kodaira, Japan. He has made significant contributions to the field of superconductive technology, holding a total of 3 patents. His work focuses on advanced logic circuits and temperature-compensated oscillators, showcasing his expertise in innovative electronic solutions.
Latest Patents
One of Houkawa's latest patents is a superconductive logic circuit. This basic logic circuit comprises a bridge circuit of four branches, where the first and second terminals are connected at least at two nodes, and an output terminal is connected at least at a node. One branch of the bridge circuit includes a series circuit consisting of a first resistor and a first Josephson junction connected between the first and second input terminals. The second branch features a parallel circuit of a second Josephson junction and a second resistor connected between the first input terminal and a grounding terminal of the bridge circuit. The third branch consists of a third resistor connected between the second input terminal and the output terminal, while the fourth branch includes a third junction connected between the output terminal and the grounding terminal. A load resistor is connected between the output terminal and the ground.
Another significant patent is for temperature-compensated surface acoustic wave oscillators. This invention involves a plurality of parallel-connected surface acoustic wave (SAW) resonators, which have different oscillation frequencies and different turnover temperatures. These resonators are connected to an active element containing circuit to form a SAW oscillator. The oscillator frequency deviation due to temperature is kept within a small allowable range by satisfying specific formulas.
Career Highlights
Kouji Houkawa is currently employed at Nippon Telegraph and Telephone Public Corporation, where he continues to innovate in the field of superconductive technology. His work has garnered attention for its potential applications in various electronic systems.
Collaborations
Throughout his career, Houkawa has collaborated with notable colleagues, including Yoshiki Yamauchi and Shokichiro Yoshikawa. These collaborations have contributed to the advancement of his research and the development of his patents.
Conclusion
Kouji Houkawa is a distinguished inventor whose work in superconductive technology has led to several innovative patents. His contributions continue to influence the field, demonstrating the importance of research and collaboration in driving technological advancements.