Location History:
- Shimoinayoshi, JP (1983)
- Ibaraki, JP (1984)
- Toride, JP (1993 - 1995)
- Tokyo, JP (2014)
Company Filing History:
6 out of 42,508 
1 out of 1,267 Years Active: 1983-2014
Title: Haruaki Otsuki: Innovator in Magnetic Head Technology
Introduction
Haruaki Otsuki is a notable inventor based in Toride, Japan. He has made significant contributions to the field of magnetic head technology, holding a total of 6 patents. His work focuses on enhancing the performance and precision of disk storage devices.
Latest Patents
One of Otsuki's latest patents is a magnetic head positioning and driving device that includes heaters and diodes. This invention is designed for a positioning and driving system that utilizes a rotating magnetic disk. It features a magnetic head slider that floats above the disk surface, allowing it to write and read data from designated tracks. The actuator positions the magnetic head slider radially, while an amplifier supplies electrical power to the actuator based on input signals. This innovative configuration enables continuous displacement across the entire operating range, making it suitable for high-speed and high-precision positioning.
Another significant patent is a method and apparatus for eliminating external disturbances in a disk storage device. This invention incorporates a microcomputer that estimates and stores an external disturbance compensation signal. It utilizes a first adder to combine this compensation signal with a positioning compensation signal, enhancing the accuracy of the drive circuit. The positioning compensator estimates a velocity signal based on the drive signal, applying a difference signal for correction, which improves overall performance.
Career Highlights
Haruaki Otsuki has worked with prominent companies such as Hitachi, Ltd. and Hitachi Koki Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced technologies in the field of magnetic storage.
Collaborations
Throughout his career, Otsuki has collaborated with notable colleagues, including Hiromu Hirai and Kenji Mori. Their combined efforts have led to innovative advancements in magnetic head technology.
Conclusion
Haruaki Otsuki's contributions to magnetic head technology and his impressive portfolio of patents highlight his role as a leading inventor in the field. His work continues to influence advancements in disk storage devices, showcasing the importance of innovation in technology.