Tohru Kouhei

Title: Tohru Kouhei: Innovator in Magnetic Disk Technology and Acceleration Sensors

Introduction

Tohru Kouhei is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the fields of magnetic disk technology and acceleration sensors. With a total of 3 patents to his name, Kouhei continues to push the boundaries of innovation in his field.

Latest Patents

One of Kouhei's latest patents is for a magnetic disk drive that includes a mechanism for pressing the head against the disk. This magnetic disk apparatus features a magnetic disk that rotates within a housing, driven by a spindle mechanism. It also includes a magnetic head for writing and reading information, supported by a suspension and driven by an actuator. The invention incorporates a retraction mechanism that allows the magnetic head to be moved to a specific area on the disk when the spindle is inactive. Additionally, a pressing mechanism is provided to ensure contact between the magnetic head and the disk.

Another significant patent is for an acceleration sensor utilizing a piezoelectric element. This sensor comprises multiple piezoelectric elements with varying polarization directions, mounted on a substrate. When acceleration is detected, the inertia of a weight applies stress to the piezoelectric elements, generating a voltage. This innovative design simplifies the configuration of the sensor while achieving a large output.

Career Highlights

Tohru Kouhei is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of magnetic disk drives and sensors, making significant impacts in various applications.

Collaborations

Kouhei has collaborated with talented individuals such as Tomoyoshi Yamada and Yasumasa Kuroba. Their combined expertise has contributed to the successful development of innovative technologies.

Conclusion

Tohru Kouhei stands out as a prominent inventor in the realm of magnetic disk technology and acceleration sensors. His patents reflect a commitment to innovation and excellence in engineering. Through his work at Fujitsu Corporation, he continues to influence the future of technology.