Jiro Mimasa

Title: The Innovative Mind of Jiro Mimasa

Introduction

Jiro Mimasa, an inventive engineer based in Fukuoka, Japan, has made notable contributions to the field of optical technologies. With three patents to his name, he has focused primarily on methods that enhance the efficiency and effectiveness of integrated optical pickups. His work has garnered attention and respect within the industry, particularly in his position at Matsushita Electric Industrial Co., Ltd.

Latest Patents

Mimasa's latest patents revolve around the development of advanced optical pickups. One notable invention is a method of manufacturing an integrated optical pickup. This innovative approach includes the transmission of light emitted from a light-emitting element through a first beam splitter film with polarization selectivity. By generating a zero-order diffraction beam and two first-order diffraction beams, these can be condensed through a condensing element onto an optical disk. The return light beam is then analyzed through a second beam splitter film, allowing for precise recording, reproduction of information, tracking, and focusing.

Another significant patent by Mimasa is for an optical pickup with a conversion of the diffusion angle of outgoing light. This patent emphasizes the importance of a diffusion angle conversion hologram positioned between the light-emitting element and the first beam splitter film. By specifying the relationship between the diffusion angles of incoming and outgoing beams, Mimasa's design ensures that the light incident on the condensing element forms an ideal spherical wave, free from wave aberration. This refinement enables an image spot on the optical disk to be condensed into a diffraction limit, resulting in a high C/N ratio and stable focus error and track signals.

Career Highlights

Jiro Mimasa has established his career at Matsushita Electric Industrial Co., Ltd., where he has been instrumental in advancing optical technology. His expertise in the manufacturing of optical pickups showcases his commitment to innovation and his understanding of the complexities involved in optical systems. His patents reflect an in-depth knowledge of optical physics and engineering practices, making him a key figure in his organization.

Collaborations

Throughout his journey, Mimasa has collaborated with notable professionals such as Shigeki Takeuchi and Kazuhiko Higo. These partnerships have fostered a creative environment in which innovative ideas can flourish and lead to groundbreaking inventions in the field of optics.

Conclusion

Jiro Mimasa's work and patents highlight his significant contributions to optical technology and innovation. By continuously pushing the boundaries of what's possible in integrated optical pickups, he exemplifies the spirit of invention that drives advancements in the industry. As he continues to collaborate with fellow innovators, the future of optical technology remains promising, largely due to the efforts of dedicated inventors like Mimasa.