Ken Tatezawa

Title: Ken Tatezawa: Innovator in Semiconductor Technology

Introduction

Ken Tatezawa is a notable inventor based in Kodaira, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of three patents. His work focuses on enhancing the functionality and efficiency of integrated circuits.

Latest Patents

One of Ken Tatezawa's latest patents is an "IC with internal interface switch for testability." This invention features a semiconductor integrated circuit that includes a shift scan path within each function module. It also has a testing I/O terminal that is separate from the normal-operation-use I/O terminal. This design incorporates a bus interface circuit that connects the normal-operation-use I/O terminals of multiple function modules to a bus. Additionally, it includes an external interface switching circuit that allows for switching between the bus-side I/O terminal and the testing I/O terminal for connection to an external terminal. An interface control circuit is also included to manage the switching process.

Another significant patent is the "Semiconductor integrated circuit device." This device employs two clock signal generating circuits that output clock signals for the internal circuit. The first clock signal generating circuit has a larger clock-settling time, while the second has a smaller clock-settling time. The selective activation of the second clock signal generating circuit allows for reduced power consumption without compromising the responsiveness of the clock oscillator.

Career Highlights

Ken Tatezawa has worked with prominent companies in the semiconductor industry, including Renesas Technology Corporation and Hitachi ULSI Systems Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative semiconductor solutions.

Collaborations

Throughout his career, Ken has collaborated with talented individuals such as Masayuki Miyazaki and Kiwamu Takada. These collaborations have fostered a creative environment that has led to advancements in semiconductor technology.

Conclusion

Ken Tatezawa is a distinguished inventor whose work in semiconductor technology has resulted in valuable patents that enhance the efficiency and functionality of integrated circuits. His contributions continue to influence the industry and inspire future innovations.