Shigeyuki Sasanuma

Title: **Innovative Contributions of Shigeyuki Sasanuma**

Introduction

Shigeyuki Sasanuma, an accomplished inventor based in Tokorozawa, Japan, has made significant contributions to the field of optical technology. With a total of four registered patents to his name, Sasanuma's innovations have greatly enhanced the functionality and efficiency of optical devices.

Latest Patents

Among his latest inventions is a **Lens Driving Apparatus**, designed for driving a movable body in the focus and tracking directions. This apparatus features a holder that supports a focus coil, a tracking coil, and a lens, all of which are components of the movable body. The invention is equipped with a magnetic circuit that applies magnetic fluxes to both coils, allowing for precise movement in the desired directions. Notably, the tracking coil consists of two sets of coils arranged for optimal performance.

Another remarkable patent is the **Optical Pickup Apparatus and Optical Parts Accommodation Module for Optical Pickup**. This apparatus includes a carriage body along with an accommodation module that houses various optical components, such as a light beam emitting portion, a light beam receiving portion, and a beam splitter. The innovative design allows for fine adjustments using a grating adjustment mechanism, enhancing the overall performance of optical pickups in devices.

Career Highlights

Sasanuma's career is highlighted by his tenure at prominent companies, including Pioneer Electronic Corporation and Pioneer Corporation. His work at these organizations has provided him a platform to advance his research and development in optical technologies, leading to his successful patency.

Collaborations

Throughout his career, Sasanuma has collaborated with notable individuals in the industry, including colleagues Shinichi Fujinoki and Osamu Ueda. These partnerships have likely fostered a creative environment that has spurred innovation and the development of cutting-edge technologies.

Conclusion

Shigeyuki Sasanuma’s inventions illustrate a commitment to advancing optical technologies through innovative engineering solutions. With a focus on enhancing the functionality of optical systems, his patents reflect a significant impact on the industry, paving the way for future advancements in this essential domain.