Masashi Murai

Title: Inventor Masashi Murai: Innovations in Disk Drive Technology

Introduction

Masashi Murai is a distinguished inventor based in Kanagawa, Japan, renowned for his contributions to disk drive technology. With a total of three patents to his name, Murai has made significant advancements that enhance the performance and reliability of magnetic disk drives.

Latest Patents

Murai's latest patents include a revolutionary disk drive and method for adjusting common-mode voltage of an element on a head-slider. This innovative disk drive features a disk designed for data storage, a motor for rotation, a head-slider, and a controller. The head-slider is equipped with a slider that operates in close proximity to the disk's recording surface, alongside an element on the slider. The controller plays a crucial role by measuring the fly height between the head-slider and the disk at various common-mode voltages of the element, ultimately determining an optimal operational voltage based on the measurement results.

In addition to this, he has developed a magnetic disk drive with a preamplifier and a flexible printed cable assembly. This invention aims to enhance cost-effectiveness, mountability, and reliability by adjusting the fly height of the magnetic head slider in response to the operating altitude of the drive. By incorporating an air pressure sensor and a heater, Murai's design effectively responds to environmental changes. The preamplifier, which is a semiconductor chip created by layering thin film circuits on a silicon wafer, includes an air pressure sensor that detects variations in electrostatic capacitance. This design is instrumental in ensuring optimal performance of the magnetic disk drive.

Career Highlights

Murai currently works at Hitachi Global Storage Technologies Netherlands B.V., where he applies his expertise in disk drive technology to drive innovation and improvements within the company. His ongoing commitment to research and development has significantly impacted the field of data storage solutions.

Collaborations

Throughout his career, Masashi Murai has collaborated with knowledgeable professionals such as Kenji Kuroki and Thomas R. Albrecht. These collaborations have fostered an environment of innovation, enhancing the development of advanced technologies and patentable inventions.

Conclusion

Masashi Murai's contributions to the field of disk drives exemplify his commitment to innovation and technological advancement. With a focus on improving the functionality and reliability of magnetic disk drives, his inventions are set to leave a lasting impact in the industry. Murai continues to pave the way for future innovators in the realm of data storage technology.