Ryuichi Ujiie

Title: Ryuichi Ujiie: Innovator in Semiconductor Technology

Introduction

Ryuichi Ujiie is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing the performance and efficiency of semiconductor devices.

Latest Patents

Ujiie's latest patents include a semiconductor device and an adjustment method therefor. This innovative semiconductor device is capable of performing background calibration during a reception operation without adversely affecting reception characteristics. During a reception operation, the device detects the timing of invalid received signals that occur due to gain changes or reception channel changes. It performs background calibration at the detected timing, ensuring that the calibration does not decrease the accuracy of reception. Additionally, unnecessary signal components that could arise from fixed interval background calibration are avoided by performing calibration at random timings.

Another notable patent is for a semiconductor integrated circuit device. This device features A/D converters that convert analog input signals into digital signals through digital correction processing while minimizing area usage. The device includes a first A/D converter and a second A/D converter. In the first mode, a test signal is inputted to both converters to calculate correction coefficients. In the second mode, the first A/D converter processes a first analog signal, while the second A/D converter processes a second analog signal, each applying their respective digital correction processing.

Career Highlights

Ryuichi Ujiie is currently employed at Renesas Electronics Corporation, where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of semiconductor devices, making them more efficient and reliable.

Collaborations

Ujiie has collaborated with notable colleagues, including Tatsuji Matsuura and Hideo Nakane. These collaborations have contributed to the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Ryuichi Ujiie's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of advanced semiconductor devices, ensuring improved performance and efficiency.