This inventor holds 1 USPTO granted patent. Top assignees: National University Corporation Tokai National Higher Education and Research System, Tanaka Precious Metal Technologies Co., Ltd.. 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:
1 out of 130 
1 out of 5 Years Active: 2026
Title: Yumezo Watanabe and AgAuS-Based Semiconductor Nanoparticles.
Introduction
Yumezo Watanabe is an inventor associated with Nagoya, Japan. His patent work concerns semiconductor nanoparticles made from compounds containing silver, gold, and sulfur.
Latest Patents
Watanabe is credited with 1 patent: “Semiconductor Nano-Particle Composed of AgAuS-Based Compound.” The invention describes a semiconductor nanoparticle formed from a crystal containing Ag, Au, and S as essential elements, with those elements making up at least 95 mass percent of the compound. It also describes a preferred ternary AgAuS compound and specifies ranges for the proportions of its constituent atoms.
Career Highlights
Watanabe’s listed organizational affiliations include the National University Corporation Tokai National Higher Education and Research System and Tanaka Precious Metal Technologies Co., Ltd. His patent reflects work at the intersection of semiconductor materials and precious-metal compounds.
Collaborations
His listed coworkers include Tsukasa Torimoto and Tatsuya Kameyama.
Conclusion
Yumezo Watanabe’s recorded invention focuses on AgAuS-based semiconductor nanoparticles, highlighting his contributions to research on advanced materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile