Tokyo, Japan

Hirofumi Kawazoe

This inventor holds 5 USPTO granted patents and 4 published patent applications and 2 EPO patents. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 2012-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Kawazoe. Retrieved from https://idiyas.com/inventor/hirofumi-kawazoe

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

USPTO Granted Patents = 5 

% Patents Active = 60.0

 

Average Co-Inventor Count = 4.3

ph-index = 1

Forward Citations = 3(Granted Patents)


Location History:

  • Tokyo, JP (2012 - 2015)
  • Echizen, JP (2019)

Company Filing History:


Years Active: 2012-2019

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5 patents (USPTO):Explore Patents

Title: Innovations of Hirofumi Kawazoe

Introduction

Hirofumi Kawazoe is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of phosphor technology, holding a total of five patents. His work focuses on the development of advanced phosphor materials that have various applications in lighting and display technologies.

Latest Patents

One of his latest patents is for a Mn-activated complex fluoride phosphor and the method of producing it. This innovative method involves mixing a red phosphor represented by a specific formula with KMnF in solid state and optionally with hydrogen fluoride. The process allows for the production of a Mn-activated complex fluoride phosphor that can be utilized in smaller amounts compared to traditional methods. Another notable patent is for long-lasting phosphor ceramics, specifically MAlO:Eu,RE type ceramics. This method reduces raw material costs while producing a sintered product that does not exhibit yellow body color.

Career Highlights

Hirofumi Kawazoe has built a successful career at Shin-Etsu Chemical Co., Ltd., where he continues to innovate in the field of phosphor materials. His work has not only advanced the technology but has also contributed to the efficiency and sustainability of phosphor production.

Collaborations

He has collaborated with notable coworkers such as Hajime Nakano and Yuji Kimura, further enhancing the research and development efforts within his company.

Conclusion

Hirofumi Kawazoe's contributions to phosphor technology through his patents and innovative methods have positioned him as a key figure in the industry. His work continues to influence advancements in lighting and display technologies.

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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