Tokyo, Japan

Hiroyuki Tomonaga

This inventor holds 12 USPTO granted patents and 6 published patent applications. Top assignees: Asahi Glass Company, Limited, Agc Inc.. Active years: 1996-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Tomonaga. Retrieved from https://idiyas.com/inventor/hiroyuki-tomonaga

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 12 

% Patents Active = 50.0

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 32(Granted Patents)


Location History:

  • Yokohama, JP (1996 - 2007)
  • Chiyoda-ku, JP (2015 - 2017)
  • Tokyo, JP (2010 - 2019)

Company Filing History:


Years Active: 1996-2019

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12 patents (USPTO):Explore Patents

Title: The Innovations of Hiroyuki Tomonaga

Introduction

Hiroyuki Tomonaga is a prominent inventor based in Tokyo, Japan. With a remarkable portfolio of 12 patents, he has made significant contributions to the field of materials science and optical technologies. His innovative work focuses on developing solutions that enhance the durability and functionality of various products, particularly in the realm of ultraviolet protection.

Latest Patents

Among his latest inventions is a **coating solution for forming an ultraviolet-absorbing film** and an **ultraviolet-absorbing glass article**. This innovative coating solution is designed to provide mechanical durability and an exceptional ability to resist deterioration from prolonged use. It comprises components derived from specific organooxysilane compounds, ensuring that the resulting ultraviolet-absorbing film maintains its effectiveness over time. Another notable invention from Tomonaga is a **single-crystal silicon-carbide substrate and polishing solution**. This invention features an atomic step-and-terrace structure, which is pivotal for advanced crystal applications, boosting performance in various high-tech industries.

Career Highlights

Hiroyuki Tomonaga has had a distinguished career, contributing to key companies such as Asahi Glass Company, Limited, and AGC Inc. His experience in these organizations has allowed him to explore and push the boundaries of material properties and applications, bringing innovative products to market that address industry needs.

Collaborations

Throughout his career, Tomonaga has collaborated with notable inventors and researchers, including Iori Yoshida and Satoshi Takemiya. These collaborations have facilitated the exchange of ideas and fostered advancements in technologies that are crucial for modern applications.

Conclusion

Hiroyuki Tomonaga's contributions to the field of invention, particularly through his recent patents, underline his role as a leading innovator in materials science. His dedication to enhancing the durability and performance of products speaks volumes about his commitment to innovation and excellence. As the world continues to evolve, the impact of his inventions will undoubtedly resonate across various industries.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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