Tokio Sawataishi

Title: Tokio Sawataishi: Innovator in Oscillation and Transistor Technology

Introduction

Tokio Sawataishi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the fields of oscillation circuits and transistor technology. With a total of two patents to his name, Sawataishi's work reflects his expertise and innovative spirit.

Latest Patents

One of his latest patents is an "Oscillator synchronized to a pulse." This invention features an oscillation circuit that includes a free-running oscillator operating at a predetermined frequency. A signal generator produces a trigger signal in synchronism with an input signal, which is supplied to the oscillator to maintain its signal level at a reference level. The oscillator is designed to keep its frequency even in the absence of an input signal, with the frequency being approximately equal to an integer multiplied by the frequency of the input signal.

Another significant patent is a "Transistor circuit," which is particularly suited for a synchronizing signal separator. This invention allows for the separation of a noise-free synchronizing signal from a composite video signal. The transistor circuit consists of a transistor with its emitter coupled to an input terminal through a capacitor and to a constant current source. It also includes a base that receives a bias voltage and a collector connected to an output terminal. A comparator is used to compare the emitter voltage with a reference voltage, and it has mechanisms to turn the transistor off based on the comparator's output. A current charging circuit is preferably included in this design.

Career Highlights

Throughout his career, Tokio Sawataishi has worked with prominent companies such as NEC Corporation and Nippon Electric Co., Ltd. His experience in these organizations has contributed to his development as an inventor and innovator in the technology sector.

Collaborations

Sawataishi has collaborated with notable colleagues, including Kazuo Tokuda and Mitsutoshi Sugawara. These partnerships have likely enriched his work and expanded his contributions to the field.

Conclusion

Tokio Sawataishi's innovative patents in oscillation and transistor technology showcase his expertise and commitment to advancing electronic engineering. His contributions continue to influence the industry and inspire future innovations.