This inventor holds 14 USPTO granted patents and 7 published patent applications. Top assignee: Nippon Telegraph and Telephone Corporation. Active years: 2023-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2023-2025
Title: Nobutatsu Koshobu: Innovator in Optical Technologies
Introduction
Nobutatsu Koshobu is a prominent inventor based in Musashino, Japan. He has made significant contributions to the field of optical technologies, holding a total of 14 patents. His work focuses on enhancing the efficiency and stability of optical devices, particularly in the realm of squeezed light measurement and wavelength conversion.
Latest Patents
Koshobu's latest patents include a planar optical waveguide device designed for measuring the amplitude phase of squeezed light. This innovative device improves resistance to optical loss and enhances the stability of balanced homodyne detection systems. The device features an amplifier circuit for phase-sensitive amplification and a multiplexing/demultiplexing circuit that facilitates the interference of local oscillator light and amplified squeezed light.
Another notable patent is a wavelength conversion apparatus that effectively suppresses damage at the end face of optical fibers, even when subjected to high-power excitation light. This invention ensures that wavelength conversion efficiency and phase-sensitive amplification gain are maintained. The apparatus utilizes polarization-maintaining fibers for both input and output, optimizing the wavelength conversion process.
Career Highlights
Nobutatsu Koshobu is affiliated with Nippon Telegraph and Telephone Corporation, where he continues to push the boundaries of optical technology. His work has garnered attention for its practical applications and innovative approaches to complex optical challenges.
Collaborations
Koshobu has collaborated with notable colleagues, including Osamu Tadanaga and Takahiro Kashiwazaki. Their combined expertise has contributed to advancements in optical technologies and the development of cutting-edge devices.
Conclusion
Nobutatsu Koshobu stands out as a leading inventor in the field of optical technologies. His patents reflect a commitment to innovation and excellence, paving the way for future advancements in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile