This inventor holds 1 USPTO granted patent. Top assignee: Ntt Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Nobuyuki Matsuda: Optical Nonlinearity Measurement
Introduction
Nobuyuki Matsuda is an inventor based in Musashino, Japan, and works at NTT Corporation. His patent work concerns methods for measuring the optical nonlinearity of two-dimensional materials.
Latest Patents
Matsuda is associated with 1 patent, titled “Measuring Method for Optical Nonlinearity of Two-Dimensional Material.” The method uses photon pairs generated through spontaneous four-wave mixing in an optical waveguide loaded with a two-dimensional material. It estimates nonlinear coefficients by fitting a theoretical photon-pair coincidence rate, derived from the coupled-wave equation, to measured results while accounting for the waveguide structure and the length of the attached material. Compared with the Z-scan method, the approach limits the influence of free carriers on nonlinear refractive-index measurements to an indirect effect.
Career Highlights
Matsuda’s disclosed invention applies optical-waveguide measurements to the characterization of two-dimensional materials. The patent describes a way to derive nonlinear coefficients from observed photon-pair coincidence rates.
Collaborations
Rai Takahashi and Yuya Yonezu are identified as Matsuda’s coworkers.
Conclusion
Nobuyuki Matsuda’s patent presents a photon-pair-based approach to measuring optical nonlinearity in two-dimensional materials, reflecting his work at NTT Corporation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile