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For the Inventor, By the Inventor

Tokorozawa, Japan

Yasushi Chatani

This inventor holds 11 USPTO granted patents. Top assignee: Kawada Co., Ltd.. Active years: 1981-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasushi Chatani. Retrieved from https://idiyas.com/inventor/yasushi-chatani

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 9

Forward Citations = 283(Granted Patents)


Company Filing History:

goldMedal11 out of 27 
 
Kawada Co., Ltd.
 patents

Years Active: 1981-1985

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11 patents (USPTO):Explore Patents
1. D277878 - Activity toy (1985-03-05),
2. D277877 - Activity toy (1985-03-05),
3. D277686 - Toy block (1985-02-19),
4. D272256 - Toy block (1984-01-17),
5. D272255 - Toy block (1984-01-17),
6. D272167 - Toy block (1984-01-10),
7. 4375139 - Toy arrangement with independently rotatable wheel means (1983-03-01),
8. 4361980 - Rolling toy and axle arrangement (1982-12-07),
9. 4306373 - Interconnecting toy block arrangement (1981-12-22),
10. 4305221 - Block of members having interior interlock means (1981-12-15),
11. 4246718 - Interconnecting toy block arrangement (1981-01-27),

Title: The Innovative Mind of Yasushi Chatani

Introduction

Yasushi Chatani, an accomplished inventor based in Tokorozawa, Japan, has made significant contributions to the field of innovation with a total of 11 patents to his name. His work at Kawada Co., Ltd. has led to the development of inventive solutions, enhancing the landscape of activity toys and beyond.

Latest Patents

Among Yasushi Chatani's latest inventions is a remarkable activity toy, showcasing his ability to blend creativity with functionality. His designs aim to engage and educate children, ensuring that playtime is both enjoyable and beneficial.

Career Highlights

Yasushi has had a distinguished career at Kawada Co., Ltd., where he has been instrumental in driving product innovations. With a solid background in research and development, his expertise has positioned him as a key player in the toy industry, allowing him to create products that resonate with both children and parents alike.

Collaborations

Working alongside his coworker Toshio Tsuchikura, Yasushi has fostered a collaborative environment that encourages the exchange of ideas and innovative thinking. Their partnership has been pivotal in bringing numerous projects to fruition, ultimately contributing to the success of their company.

Conclusion

Yasushi Chatani's dedication to developing innovative products sets him apart as a leading inventor in the industry. With his extensive patent portfolio and commitment to enhancing play experiences, he continues to inspire future generations of inventors and creators.

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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