Company Filing History:
Years Active: 1996-1999
Title: Akitomo Oba: Innovator in Optical Technology
Introduction
Akitomo Oba is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, holding a total of 3 patents. His work focuses on developing advanced optical head devices that enhance the efficiency and functionality of optical systems.
Latest Patents
Akitomo Oba's latest patents include an optical head device and a birefringent diffraction grating polarizer. The optical head device utilizes a birefringent diffraction grating polarizer configured in a reflection type. This innovative device features a polarizing hologram element that reflects light from a light source to a converging lens system while diffracting the polarized light returning from a recording medium. A total reflection film is formed on the surface of a diffraction grating, which is periodically provided by an ion exchange region and a dielectric film on a surface of a crystal plate with optically anisotropic characteristics. Additionally, a polarizing beam splitter film on the polarizing hologram element exhibits reflectivity and transmissivity that depend on the polarization of the incident light. The arrangements enable the optical head device to be compact, lightweight, and cost-effective.
Career Highlights
Akitomo Oba is currently associated with NEC Corporation, a leading technology company known for its innovations in information technology and electronics. His work at NEC has allowed him to push the boundaries of optical technology and contribute to advancements in the field.
Collaborations
Akitomo Oba collaborates with Yuzo Ono, a fellow innovator in the optical technology sector. Their partnership has fostered the development of cutting-edge solutions that address the challenges in optical systems.
Conclusion
Akitomo Oba's contributions to optical technology through his patents and work at NEC Corporation highlight his role as a key innovator in the field. His advancements in optical head devices and diffraction grating polarizers continue to influence the industry and pave the way for future innovations.