Kanagawa, Japan

Chang-yi Qian

This inventor holds 4 USPTO granted patents. Top assignee: Fuji Photo Film Company, Limited. Active years: 2002-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang-yi Qian. Retrieved from https://idiyas.com/inventor/chang-yi-qian

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


% Patents Active = 75.0

Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 129(Granted Patents)


Location History:

  • Saitama-ken, JP (2002)
  • Kanagawa, JP (2003 - 2004)
  • Kanagawa-ken, JP (2005)

Company Filing History:


Years Active: 2002-2005

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4 patents (USPTO):Explore Patents

Title: The Innovative Mind of Chang-yi Qian

Introduction

Chang-yi Qian is a notable inventor based in Kanagawa, Japan, recognized for his contributions to the field of charge transfer materials and photoelectric devices. With a portfolio of four patents, he has significantly impacted technological advancements in photoelectric conversion and materials science.

Latest Patents

Qian's latest patents include groundbreaking inventions such as a charge transfer material and a photoelectric conversion device utilizing this material. One of his notable innovations, described in his patent, focuses on a pyridine compound comprising a basic compound that possesses a negative charge. The general formula represented in his patents showcases an intricate structure involving a cation for charge neutralization, emphasizing the complexity and novelty of his work. This new nonvolatile pyridine compound is characterized as a low-viscosity liquid at room temperature, making it a valuable alternative for various applications in electrochemistry and energy conversion. Furthermore, he has developed a polymerizable molten salt monomer and an electrolyte composition, enhancing the functionality of electrochemical cells.

Career Highlights

Chang-yi Qian works for Fuji Photo Film Company, Limited, where he applies his innovative thinking to advance the company's technology in the field of photoelectronics. His work not only contributes to his personal repertoire of patents but also elevates the technological capabilities of his employer in an increasingly competitive industry.

Collaborations

Throughout his career, Qian has collaborated with esteemed colleagues such as Michio Ono and Koji Wariishi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise, leading to the development of cutting-edge technologies and innovations.

Conclusion

Chang-yi Qian stands out as an influential inventor whose work in charge transfer materials and photoelectric devices continues to shape the future of technology. His four patents reflect his dedication to research and innovation, and his collaborations further enhance his impact in the industry. As he continues to develop new inventions, Qian's contributions will undoubtedly play a pivotal role in advancing photoelectrical applications.

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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