Ryotaro Kamikawai

Title: Ryotaro Kamikawai: Innovator in Clock Signal Supply Systems and Superconducting Logic Circuits

Introduction

Ryotaro Kamikawai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of electronics and superconductivity, holding a total of 5 patents. His innovative work has paved the way for advancements in clock signal supply systems and superconducting logic circuits.

Latest Patents

One of Kamikawai's latest patents is a clock signal supply system that provides automatic accurate phase adjustment of clock signals. This system includes an oscillator that produces clock signals and a reference generator that generates a reference signal with a predetermined relationship to the clock signals. At each location where the clock signal is to be received, an adjusting circuit is provided to adjust the phase of the received clock signals. This adjusting circuit may include a variable delay circuit that receives the clock signal and produces an output constituted by the clock signal having a varied delay. The output of the variable delay is fed back to a phase difference detection circuit, which compares the reference signal with the output of the variable delay circuit. This comparison produces a control signal to further adjust the phase of the clock signal, ensuring automatic adjustment at each location.

Another notable patent is the superconducting logic circuit, which is configured using two kinds of input-output type quantum flux parametrons (QFP). The periodically excited QFP amplifies a binary magnetic flux through periodically varying exciting magnetic flux. In contrast, the arbitrarily excited QFP is excited by magnetic flux output signals from upstream QFPs. This innovative approach enhances the performance of superconducting circuits.

Career Highlights

Kamikawai has worked with several esteemed organizations, including Hitachi, Ltd. and the Research Development Corporation of Japan. His experience in these companies has contributed to his expertise and innovative capabilities in the field of electronics.

Collaborations

Throughout his career, Kamikawai has collaborated with notable individuals such as Masakazu Yamamoto and Akira Masaki. These collaborations have further enriched his work and led to significant advancements in his projects.

Conclusion

Ryotaro Kamikawai is a distinguished inventor whose work in clock signal supply systems and superconducting logic circuits has made a lasting impact on technology. His innovative patents and collaborations highlight his contributions to the field, showcasing his role as a leading figure in electronics.