Kazuyoshi Futamura

Title: Kazuyoshi Futamura: Innovator in Delay-Lock Loop Technology

Introduction

Kazuyoshi Futamura is a notable inventor based in Kasugai, Japan. He has made significant contributions to the field of electronics, particularly in the development of delay-lock loop (DLL) technologies. With a total of 3 patents to his name, Futamura's work has had a considerable impact on the industry.

Latest Patents

Futamura's latest patents include innovative solutions aimed at enhancing the performance of delay-lock loops. One of his key inventions is a device designed to reduce delay-lock loop delay fluctuation. This device features a master delay-lock loop that includes a phase frequency detector connected in series with a charge pump to generate a control voltage. A slave DLL is coupled to the master DLL, incorporating a delay line with a buffer that receives a slave clock and a series of delay cells. These delay cells are variably controlled by the generated control voltage, allowing for improved performance even when the power supply experiences undershoot or overshoot due to load transients. Another significant patent is a DC-DC converter that includes a first amplifier to amplify the difference between a reference voltage and a feedback voltage. This invention also features a controller that adjusts the output voltage based on specific feedback conditions.

Career Highlights

Throughout his career, Kazuyoshi Futamura has worked with prominent companies in the semiconductor industry. He has been associated with Cypress Semiconductor Corporation and Fujitsu Semiconductor Limited, where he contributed to various innovative projects and technologies.

Collaborations

Futamura has collaborated with several talented individuals in his field, including Koji Okada and Hiroyuki Matsunami. These collaborations have further enriched his work and contributed to the advancement of technology in delay-lock loops.

Conclusion

Kazuyoshi Futamura is a distinguished inventor whose work in delay-lock loop technology has paved the way for advancements in electronic devices. His innovative patents and collaborations highlight his significant contributions to the field.