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For the Inventor, By the Inventor

Tokyo, Japan

Toru Kawazu

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Okutama Kogyo Co., Ltd.. Active years: 2011-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toru Kawazu. Retrieved from https://idiyas.com/inventor/toru-kawazu

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

USPTO Granted Patents = 2 

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 5(Granted Patents)


Location History:

  • Tachikawa, JP (2011)
  • Tokyo, JP (2012)

Company Filing History:

goldMedal2 out of 7 
 
Okutama Kogyo Co., Ltd.
 patents

Years Active: 2011-2012

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2 patents (USPTO):Explore Patents
1. 8252413 - Light calcium carbonate, process for producing the same, and printing paper containing the same (2012-08-28),
2. 8017101 - Precipitated calcium carbonate, method for producing the same and filler for loading paper using the same (2011-09-13),

Title: Toru Kawazu: Innovator in Calcium Carbonate Technologies

Introduction

Toru Kawazu is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced calcium carbonate products. With a total of 2 patents, his work has implications for various industries, including paper manufacturing.

Latest Patents

Kawazu's latest patents include innovations in light calcium carbonate and precipitated calcium carbonate. The first patent focuses on a process for producing light calcium carbonate in the form of microparticle aggregates. This product boasts a BET specific surface area between 10 m/g and 25 m/g, with a pore volume of 0.05 cm/g or larger. It also demonstrates superior oil absorption properties, making it an excellent filler for printing paper, enhancing ink absorption and opacity. The second patent details a method for producing precipitated calcium carbonate aggregates, which have a secondary particle diameter of 1 to 10 μm. This method allows for the creation of calcium carbonate that can be uniformly dispersed in pulp fiber, leading to the manufacture of high bulk paper.

Career Highlights

Kawazu is currently employed at Okutama Kogyo Co., Ltd., where he continues to innovate in the field of calcium carbonate technologies. His work has not only advanced the understanding of these materials but has also provided practical solutions for their application in various industries.

Collaborations

Throughout his career, Kawazu has collaborated with notable colleagues, including Kazuhisa Shimono and Tatsuo Takano. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Toru Kawazu's contributions to the field of calcium carbonate technologies highlight his role as a significant inventor. His patents reflect a commitment to advancing material science and improving industrial applications. His work continues to influence the industry and pave the way for future innovations.

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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