Keizo Okamoto

Title: Keizo Okamoto: CMOS Schmitt-Trigger Circuit Inventor.

Introduction

Keizo Okamoto is an inventor associated with Sagamihara, Japan, and Fujitsu Corporation. His work includes a patent for a CMOS Schmitt-trigger circuit designed to shape input signals for logic circuits.

Latest Patents

The provided information lists one patent for Okamoto: 1 patent. The invention, titled “CMOS Schmitt-Trigger Circuit,” is designed to shape the waveform of an input signal supplied to logic circuits such as flip-flops and counters.

The circuit uses three CMOS inverters connected in cascade, with a feedback resistor linking the output of the third inverter to the input of the second. Its Schmitt width is less dependent on the impedance of the input signal source than that of prior-art devices.

Career Highlights

Okamoto’s listed patent reflects work on signal conditioning for digital logic applications. The invention’s circuit arrangement addresses how input-source impedance affects the Schmitt width.

Collaborations

The provided information identifies Masayoshi Tomita and Osamu Takagi as Okamoto’s coworkers. Okamoto is associated with Fujitsu Corporation.

Conclusion

Keizo Okamoto’s CMOS Schmitt-trigger circuit patent describes an approach to shaping signals for logic circuits while reducing the circuit’s dependence on input-source impedance.