Wataru Hasegawa

Title: **Wataru Hasegawa: Innovator in the Field of Electronics**

Introduction

Wataru Hasegawa, an influential inventor from Sakai, Japan, has made significant contributions to the field of electronics through his innovative inventions. With a total of five patents, Hasegawa continues to push the boundaries of technology, particularly in areas like lighting and video recording systems.

Latest Patents

Among his latest innovations, Hasegawa developed a **Cold Cathode Fluorescent Lamp Driving Apparatus Using a Piezoelectric**. This invention generates an alternating current (AC) driving signal at a frequency close to the resonance frequency of a piezoelectric transformer. The device shapes the waveform of the output signal to be nearly sinusoidal, then amplifies it for driving a piezoelectric transformer to activate a cold cathode fluorescent lamp safely, even as its impedance decreases.

Another remarkable invention is the **Video and Sound Recording Device with Automatic Focusing System**. This device utilizes an automatic focusing system to set a lens position based on the distance to the object, calculated through ultrasonic wave transmission. Addressing common issues in existing devices, Hasegawa's design includes a control circuit that synchronizes with ultrasonic wave transmission to suppress impulse noise captured by a microphone during recording.

Career Highlights

Hasegawa has worked at esteemed companies such as West Electric Co., Ltd., and Matsushita Electric Industrial Co., Ltd., where he was able to hone his skills and develop his groundbreaking inventions. His experience at these leading firms provided him with a rich foundation in the electronics industry, enabling him to innovate effectively.

Collaborations

Throughout his career, Wataru Hasegawa has collaborated with noted individuals like Hiroshi Iwata and Hiroshi Makino. Their teamwork has fostered an environment of innovation and development, leading to the creation of impactful technologies within the industry.

Conclusion

Wataru Hasegawa’s contributions to electronics through his patents highlight his ingenuity as an inventor. By focusing on practical applications that enhance everyday electronic devices, Hasegawa continues to inspire future generations of engineers and inventors in the pursuit of innovation.