Company Filing History:
3 out of 25 
1 out of 56 
Years Active: 2015-2023
Title: **Inventor Boris Ryvkin: Innovating Semiconductor Technologies**
Introduction
Boris Ryvkin, based in St. Petersburg, Russia, is a notable inventor with a strong focus on optical semiconductor technologies. With a total of three patents to his name, his work is pivotal in advancing the field, particularly in the area of semiconductor lasers and related apparatus.
Latest Patents
Among Ryvkin's latest innovations are two significant patents. The first is a "Method of manufacturing optical semiconductor apparatus," which describes a novel configuration. This apparatus operates in a single fundamental transverse mode and features a waveguide layer positioned between n-doped and p-doped cladding layers. The active layer is strategically asymmetrical within the waveguide layer, closer to the p-doped cladding, allowing for refined control of carrier density dependent internal optical loss at high injection levels.
His second patent is for a "Semiconductor laser," a single pulse laser functioning in the gain-switching regime. This innovation includes a plane asymmetric waveguide and an active layer where the thickness of the active layer is significantly larger than the optical confinement factor, demonstrating exceptional advancements in semiconductor laser technology.
Career Highlights
Boris Ryvkin has significantly contributed to semiconductor research, with an extensive career that sees him associated with reputable institutions. He worked with Oulu University and The University of York, where his expertise in optical semiconductors grew and flourished, impacting both academic and practical applications of semiconductor technologies.
Collaborations
Throughout his career, Ryvkin has collaborated with notable colleagues, including Juha Kostamovaara and Eugene A Avrutin. These partnerships have fostered a rich environment for innovation, blending diverse expertise to drive advancements in semiconductor research.
Conclusion
Boris Ryvkin stands out as a pioneer in the field of optical semiconductors, with his patents showcasing innovative methodologies and apparatus configurations that push the boundaries of current technology. His ongoing contributions continue to impact the industry significantly and inspire future innovations in semiconductor applications.