Yasufumi Shimizu

Title: Yasufumi Shimizu: Innovator in Frequency Synthesis Technology

Introduction

Yasufumi Shimizu is a notable inventor based in Fukaya, Japan. He has made significant contributions to the field of frequency synthesis, particularly in the development of technology for CATV tuners. His innovative work has led to the creation of a patent that enhances the functionality and efficiency of frequency oscillators.

Latest Patents

Yasufumi Shimizu holds a patent for a frequency synthesizer designed for CATV tuners. This invention features a variable frequency oscillator that includes a RAM for storing frequency setting data, a VCO circuit for generating oscillation output, and a reference oscillator that provides a reference signal. The invention also incorporates a phase comparator to detect phase differences and a logic circuit that combines frequency control data with phase data. This sophisticated design allows for precise frequency control, improving the performance of CATV tuners.

Career Highlights

Shimizu is associated with Kabushiki Kaisha Toshiba, a leading technology company known for its innovative solutions. His work at Toshiba has allowed him to focus on advancements in frequency synthesis technology, contributing to the company's reputation for excellence in electronics and telecommunications.

Collaborations

Yasufumi Shimizu has collaborated with notable colleagues, including Akinori Masuko and Wataru Kuroiwa. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Yasufumi Shimizu's contributions to frequency synthesis technology exemplify the spirit of innovation. His patent for a frequency synthesizer for CATV tuners showcases his expertise and commitment to advancing technology in the field. Through his work at Toshiba and collaborations with talented colleagues, Shimizu continues to make a significant impact in the industry.