Location History:
- Tsukuba, JP (2021)
- Musashino, JP (2024)
Company Filing History:
Years Active: 2021-2025
Title: Yoko Yamashita: Innovator in Optical Technologies
Introduction
Yoko Yamashita is a prominent inventor based in Tsukuba, Japan. She has made significant contributions to the field of optical technologies, holding a total of 5 patents. Her work focuses on enhancing optical systems, making them more efficient and versatile.
Latest Patents
Yamashita's latest patents include an optical side input/output circuit and an optical connector. The objective of this invention is to provide an optical side input/output circuit that possesses wavelength selectivity and can be easily integrated at multiple points within a transmission path. This innovative circuit features a grating portion that includes a fiber Bragg grating, which reflects light of a desired wavelength propagating in the core of an optical fiber. Additionally, there is a tap portion that is strategically placed before the grating portion in the light's propagation direction, equipped with a tap waveguide that outputs the light reflected by the grating from the side surface of the optical fiber.
Another notable patent is for a long period fiber grating (LPFG) and an optical transmission system. This invention ensures that the mode conversion amount remains independent of the polarization state and electric field distribution. The LPFG consists of cavity rows of cavities that are periodically arranged in the core region of a few-mode fiber, positioned away from the central axis. Each cavity row is located at different longitudinal positions, with a 90° shift on the cross-section of the core region.
Career Highlights
Yoko Yamashita is affiliated with Nippon Telegraph and Telephone Corporation, where she continues to push the boundaries of optical technology. Her innovative work has garnered attention and respect within the industry.
Collaborations
Yamashita has collaborated with notable coworkers, including Takashi Matsui and Kazuhide Nakajima. Their combined expertise has contributed to the advancement of optical technologies.
Conclusion
Yoko Yamashita is a trailblazer in the field of optical innovations, with a focus on developing advanced systems that enhance communication technologies. Her contributions are shaping the future of optical engineering and technology.
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.