Location History:
- Tenri, JP (1990)
- Yamatokoriyama, JP (1992)
- Nara, JP (1991 - 1995)
- Kashiba, JP (2005 - 2010)
Company Filing History:
Years Active: 1990-2010
Title: Toshiya Nagahama: Innovator in Optical Technology
Introduction
Toshiya Nagahama is a prominent inventor based in Nara, Japan. He has made significant contributions to the field of optical technology, holding a total of 8 patents. His work focuses on enhancing the performance and reliability of optical systems.
Latest Patents
Nagahama's latest patents include innovative designs such as a splitting element, light emitter, and optical pickup apparatus. The objective of his invention is to provide a splitter, a light emitter, and an optical pickup apparatus that can achieve a stable track servo. The structure of the optical system, which includes an objective lens and a hologram pattern, ensures that even when the hologram pattern is irradiated with reflected light from one recording layer, the first and second TES splitting portions are not affected. This design prevents light reception by the first and second TES light receiving portions, allowing for accurate track position information and eliminating potential issues with the objective lens being driven beyond its movable range.
Another notable patent involves an optical pickup device that utilizes a polarizing hologram element and a hologram laser. This invention aims to read information from a target information recording surface reliably by canceling DC offsets in tracking-signal detection signals. By employing a 3-beam method, auxiliary light receiving domains are introduced to enhance the tracking servo process.
Career Highlights
Toshiya Nagahama is currently associated with Sharp Kabushiki Kaisha Corporation, where he continues to innovate in optical technologies. His work has significantly impacted the efficiency and accuracy of optical systems used in various applications.
Collaborations
Nagahama has collaborated with notable colleagues such as Yukio Kurata and Yoshio Yoshida, contributing to advancements in their shared field of expertise.
Conclusion
Toshiya Nagahama's contributions to optical technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of reliable optical systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.