Susumu Nagatsuka

Title: Susumu Nagatsuka: Innovator in Spectacle Lens and Magnetic Reproducing Technology

Introduction

Susumu Nagatsuka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the fields of optics and magnetic data reproduction. With a total of 2 patents to his name, Nagatsuka's work reflects a commitment to advancing technology in practical applications.

Latest Patents

Nagatsuka's latest patents include a groundbreaking spectacle lens. This lens features multilayer films on both the object-side and eyeball-side surfaces of the lens substrate. The lens achieves a reduction ratio of light in the wavelength band of 800 to 1400 nm of 45.0% or more. Additionally, it maintains a mean reflectance ratio on the eyeball-side surface to the object-side surface between 0.2 and 0.8. Furthermore, the mean reflectance on the eyeball-side surface in the wavelength band of 315 to 400 nm is 5.0% or less.

Another significant patent is his magnetic reproducing method for suppressing low-temperature noise. This method allows a thin-film magnetic head to read data signals effectively, even in low-temperature environments. The process involves heating the head element to enhance its read characteristics while minimizing noise.

Career Highlights

Throughout his career, Nagatsuka has worked with prominent companies such as TDK Corporation and Sae Magnetics (H.K.) Limited. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Some of his notable coworkers include Noboru Yamanaka and Yoshihiro Kudo. Their collaboration has likely fostered an environment of creativity and innovation in their respective fields.

Conclusion

Susumu Nagatsuka's contributions to the fields of optics and magnetic data reproduction highlight his innovative spirit and dedication to technology. His patents reflect a deep understanding of practical applications that enhance everyday life.