Akira Hatakeyama

Title: Akira Hatakeyama: Innovator in Servo Control Technology

Introduction

Akira Hatakeyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of servo control technology, particularly in the realm of video tape recorders. With a total of 2 patents, his work has had a lasting impact on the industry.

Latest Patents

Hatakeyama's latest patents include a "Servo control apparatus for adjusting the phase of a rotary head." This invention employs a reference signal to initiate the production of a trapezoidal or ramp signal, which is crucial for the phase locking of the head drum to the reference signal. The apparatus utilizes a variable delay counter and a flip-flop to ensure precise control over the head position signal, thereby minimizing jitter during operation.

Another significant patent is the "Rotational direction indicating apparatus." This device provides an indication of the commanded direction of a rotary member just before it commences rotation. It includes a frequency generator and a speed detector that work together to produce an indicating signal corresponding to the actual direction of rotation, enhancing the accuracy of the system.

Career Highlights

Hatakeyama is currently employed at Sony Corporation, a leading company in the electronics industry. His innovative work has contributed to the advancement of various technologies within the company, particularly in video recording and playback systems.

Collaborations

Throughout his career, Hatakeyama has collaborated with talented individuals such as Atsuo Matsuyama and Yutaka Moritake. These collaborations have fostered an environment of creativity and innovation, leading to the development of groundbreaking technologies.

Conclusion

Akira Hatakeyama's contributions to servo control technology exemplify the spirit of innovation. His patents have not only advanced the capabilities of video tape recorders but have also set a foundation for future developments in the field.