Motomu Hashizume

Title: Motomu Hashizume: Innovator in Magnetic Technologies

Introduction

Motomu Hashizume is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic technologies, holding a total of 9 patents. His work primarily focuses on enhancing the performance and efficiency of data storage devices.

Latest Patents

One of his latest patents is titled "Resistivity sense bias circuits and methods of operating the same." This patent describes a resistivity sense bias circuit designed for use with a magnetoresistive read head. The circuit includes a current biasing portion that provides a bias current across the read head, establishing a bias voltage. Additionally, it features a resistivity sensing portion that detects changes in the bias current based on resistivity changes in the read head. A voltage source is also included to adjust the bias voltage in response to these changes.

Another notable patent is the "Hard disk drive preamplifier with reduced pin count." This invention involves a disk drive controller that integrates a preamplifier and a controller. It allows for communication between the controller and the preamplifier over shared terminals and conductors. The design includes differential lines for data communication, enabling simultaneous data writing and reading.

Career Highlights

Motomu Hashizume is currently employed at Texas Instruments Corporation, where he continues to innovate in the field of electronics and data storage technologies. His work has significantly impacted the efficiency and functionality of hard disk drives.

Collaborations

He collaborates with Naoko Jinguji, contributing to various projects and advancements in their field.

Conclusion

Motomu Hashizume's contributions to magnetic technologies and data storage are noteworthy. His innovative patents reflect his expertise and commitment to advancing technology. His work continues to influence the industry and pave the way for future developments.