Higashimatsuyama, Japan

Hiroyuki Tokai

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Taiyo Ink Manufacturing Co., Ltd.. Active years: 2000-2003.

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

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 5.6

ph-index = 3

Forward Citations = 40(Granted Patents)


Location History:

  • Wako, JP (2000 - 2001)
  • Higashimatsuyama, JP (2003)

Company Filing History:


Years Active: 2000-2003

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3 patents (USPTO):Explore Patents

Title: Innovations of Hiroyuki Tokai

Introduction

Hiroyuki Tokai is a notable inventor based in Higashimatsuyama, Japan. He has made significant contributions to the field of electrically conductive materials, particularly in the context of plasma display panels. With a total of three patents to his name, Tokai's work showcases his expertise and innovative spirit.

Latest Patents

One of Tokai's latest patents is a photo-curable electrically conductive composition. This composition is designed to form a lower layer electrode circuit that meets the requirements of both conductivity and blackness after calcination. The formulation includes electrically conductive black fine particles, an inorganic binder, a photopolymerizable monomer, and a photopolymerization initiator. Additionally, it may contain inorganic fine particles to enhance its properties. Another significant patent involves a method for producing a patterned calcined inorganic film, which is crucial for creating electroconducting or insulating films for plasma display panels. This method ensures that the patterned film maintains its integrity during the calcining process.

Career Highlights

Hiroyuki Tokai is currently associated with Taiyo Ink Manufacturing Co., Ltd., where he continues to develop innovative materials for various applications. His work has been instrumental in advancing technologies related to display panels, contributing to the evolution of modern electronics.

Collaborations

Throughout his career, Tokai has collaborated with notable colleagues such as Kazunobu Fukushima and Kouichi Takagi. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Hiroyuki Tokai's contributions to the field of electrically conductive materials and plasma display technology highlight his role as a leading inventor. His innovative patents and collaborations reflect a commitment to advancing technology in meaningful ways.

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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