Osaka, Japan

Hiroshi Yoshitake

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1976-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Yoshitake. Retrieved from https://idiyas.com/inventor/hiroshi-yoshitake-6afohzwv

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

Calculating rank
USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 4

Forward Citations = 36(Granted Patents)


Location History:

  • Oita, JA (1976)
  • Ibaraki, JP (1984)
  • Osaka, JP (1986)
  • Niihama, JP (1991)

Company Filing History:


Years Active: 1976-1991

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5 patents (USPTO):Explore Patents

Title: Hiroshi Yoshitake: Innovator in Electroluminescence Technology

Introduction

Hiroshi Yoshitake is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of electroluminescence, holding a total of 5 patents. His work focuses on developing advanced materials and devices that enhance the performance and stability of transparent conductive films.

Latest Patents

Among his latest patents is a dispersion-type electroluminescence device. This invention includes a composition for forming a transparent conductive film, which is created by mixing an organic solution comprising an indium salt of inorganic acid and a tin salt of an inorganic acid with a non-aqueous silica sol. The composition demonstrates excellent stability over time and good wettability to a substrate plate. The resulting transparent conductive film exhibits strong adhesion strength to the substrate plate and features a two-layered structure.

Career Highlights

Hiroshi Yoshitake is currently associated with Sumitomo Chemical Company, Limited, where he continues to innovate and develop new technologies. His work has been instrumental in advancing the field of electroluminescence, making significant strides in the efficiency and durability of related devices.

Collaborations

Throughout his career, Yoshitake has collaborated with notable colleagues, including Tadanori Hashimoto and Akiko Nakazono. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Hiroshi Yoshitake's contributions to the field of electroluminescence and transparent conductive films highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and pave the way for future advancements.

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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