Company Filing History:
Years Active: 1997-2002
Title: Innovative Contributions of Masamichi Utsumi in Optical Disc Technology
Introduction: Masamichi Utsumi, a distinguished inventor based in Chiba, Japan, has made significant contributions to the field of optical disc technology. With a total of five patents to his name, Utsumi's innovations have played a crucial role in advancing how optical discs are read and processed.
Latest Patents: One of Utsumi's latest patents describes an advanced optical pickup designed for discriminating between and reading various types of optical discs. This optical pickup features a light source that radiates a light beam, a diffraction element that separates the light into at least three beams (a main beam and two side beams), and an objective lens that converges these beams onto the signal recording surface of the optical recording medium. The design includes a light receiving unit with a four-segment first light receiving portion that captures the main beam reflected by the recording surface, as well as second and third light receiving portions that receive the side beams. A calculation unit then generates tracking signals based on the outputs of these receiving portions, allowing for precise reading of optical discs.
Career Highlights: Masamichi Utsumi is currently associated with Sony Corporation, a leading player in the technology sector. His career at Sony has been marked by a commitment to innovation and excellence, evident in the patents he has secured throughout his tenure.
Collaborations: Throughout his career, Utsumi has collaborated with other brilliant minds, including his coworkers Akio Yamakawa and Kamon Uemura. These collaborations have fostered a creative environment that enables the development of cutting-edge technology in the optical disc realm.
Conclusion: Masamichi Utsumi's contributions to optical disc technology stand as a testament to his ingenuity and dedication as an inventor. Through his patents and collaborations, he continues to influence the way optical media is utilized in modern technology, paving the way for future innovations in this field.