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For the Inventor, By the Inventor

Futtsu, Japan

Kazushige Umezawa

This inventor holds 6 USPTO granted patents. Top assignee: Nippon Steel Corporation. Active years: 1981-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazushige Umezawa. Retrieved from https://idiyas.com/inventor/kazushige-umezawa

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 5.8

ph-index = 3

Forward Citations = 21(Granted Patents)


Location History:

  • Himeji, JP (1981 - 1990)
  • Chiba, JP (1999)
  • Futtsu, JP (1999 - 2003)

Company Filing History:

goldMedal6 out of 3,721 
 
Nippon Steel Corporation
 patents

Years Active: 1981-2003

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6 patents (USPTO):Explore Patents
1. 6555063 - Evaluation apparatus for cleanliness of metal and method thereof (2003-04-29),
2. 6432718 - Evaluation apparatus for cleanliness of metal and method thereof (2002-08-13),
3. 5985674 - Evaluation method for cleanliness of metal (1999-11-16),
4. 5884685 - Quality prediction and quality control of continuous-cast steel (1999-03-23),
5. 4891064 - Method of melting cold material including iron (1990-01-02),
6. 4295882 - Steel making process (1981-10-20),

Title: Kazushige Umezawa: Innovator in Metal Cleanliness Evaluation

Introduction

Kazushige Umezawa is a prominent inventor based in Futtsu, Japan. He has made significant contributions to the field of metal cleanliness evaluation, holding a total of 6 patents. His work focuses on developing methods and apparatuses that enhance the quality control processes in metal production.

Latest Patents

One of Umezawa's latest patents is an evaluation apparatus for cleanliness of metal and the method thereof. This invention aims to quickly and economically assess the cleanliness of metal by evaluating the quantities and compositions of non-metallic inclusion particles that can lead to product defects. The method involves levitation-melting a metal piece for a predetermined time, discharging non-metallic inclusion particles to the surface of molten metal, and analyzing the sample surface after solidification using fluorescent X-ray analysis or other chemical measurements. This innovative approach allows for a more accurate determination of the quantity of non-metallic inclusions.

Career Highlights

Kazushige Umezawa is associated with Nippon Steel Corporation, where he applies his expertise in metal evaluation. His work has been instrumental in improving the quality of metal products, ensuring that they meet industry standards.

Collaborations

Umezawa has collaborated with notable colleagues such as Takehiko Toh and Eiichi Takeuchi, contributing to advancements in the field of metal cleanliness evaluation.

Conclusion

Kazushige Umezawa's innovative work in the evaluation of metal cleanliness has made a significant impact on the industry. His patents reflect a commitment to enhancing quality control processes in metal production, ensuring better product reliability and performance.

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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