Kikuzo Sawada

Title: Kikuzo Sawada: Semiconductor Memory and Circuit Innovations.

Introduction

Kikuzo Sawada is an inventor associated with Koganei, Japan. His patent work addresses semiconductor memory devices, integrated circuits, and methods for reliable data storage. He is credited with 2 patents.

Latest Patents

Sawada’s listed patents include “Semiconductor Integrated Circuit, Operating Method Thereof, and IC Card Including the Circuit.” The invention describes a thin-film transistor connected to a two-terminal nonvolatile memory element, with the transistor’s gate linked to a word line and its other connections arranged with bit and base lines. During writing, opposite-polarity voltages are applied to the bit-line and base-line inputs to create the voltage needed to change the memory element from a low-impedance state to a high-impedance state.

His other listed patent is “Semiconductor Memory Device Having Self-Correcting Function.” It uses memory cells for data and parity bits, along with two read circuits that apply different detection criteria. This arrangement helps recover correct data when charge depletion shifts a memory cell’s threshold and causes a bit error.

Career Highlights

Sawada’s listed company affiliations include Rohm Co., Ltd. and Canon Kabushiki Kaisha. His patent subjects reflect work on semiconductor circuits and techniques for improving memory reliability.

Collaborations

Tadahiko Hirai is identified as a coworker associated with Sawada.

Conclusion

Kikuzo Sawada’s two listed patents focus on nonvolatile memory operation and self-correcting semiconductor memory, highlighting his contributions to circuit design and dependable data storage.