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For the Inventor, By the Inventor

Chiba, Japan

Kazue Tsuyuzaki

This inventor holds 5 USPTO granted patents. Top assignee: Dainippon Ink and Chemicals, Incorporated. Active years: 1986-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazue Tsuyuzaki. Retrieved from https://idiyas.com/inventor/kazue-tsuyuzaki

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 = 100.0

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 93(Granted Patents)


Company Filing History:

goldMedal5 out of 630 
 
Dainippon Ink and Chemicals, Incorporated
 patents

Years Active: 1986-1991

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5 patents (USPTO):Explore Patents
1. 5064928 - Isocyanate prepolymer and process for preparing the same (1991-11-12),
2. 5017655 - Urethane coating resin composition (1991-05-21),
3. 4789705 - Resin composition comprising an isocyanate having an isocyanurate ring (1988-12-06),
4. 4647623 - Process for producing polyisocyanate and resin composition comprising (1987-03-03),
5. 4582888 - Process for production of isocyanurate ring-containing polyisocyanate (1986-04-15),

Title: Kazue Tsuyuzaki: Innovator in Urethane Technology

Introduction

Kazue Tsuyuzaki is a prominent inventor based in Chiba, Japan. She has made significant contributions to the field of urethane technology, holding a total of 5 patents. Her innovative work has advanced the development of materials used in various applications.

Latest Patents

One of her latest patents is titled "Isocyanate prepolymer and process for preparing the same." This invention provides an isocyanate prepolymer prepared by reacting an organic di-isocyanate with an unsaturated alcohol dimer having 16 to 24 carbon atoms and/or a hydrogen addition product of the unsaturated alcohol dimer. Another notable patent is the "Urethane coating resin composition," which comprises essential components including an isocyanurate-type polyisocyanate derived from hexamethylene diisocyanate and an acrylic polyol with a specific molecular weight and hydroxyl value.

Career Highlights

Kazue Tsuyuzaki is currently employed at Dainippon Ink and Chemicals, Incorporated, where she continues to innovate and develop new materials. Her work has been instrumental in enhancing the performance and application of urethane products.

Collaborations

Throughout her career, she has collaborated with notable colleagues such as Mitsuo Kase and Noboru Okoshi. These partnerships have contributed to her success and the advancement of her research.

Conclusion

Kazue Tsuyuzaki is a trailblazer in the field of urethane technology, with a strong portfolio of patents that reflect her innovative spirit. Her contributions continue to impact the industry positively.

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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