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For the Inventor, By the Inventor

Ibaraki, Japan

Yoshikazu Nagata

This inventor holds 5 USPTO granted patents. Top assignees: Petoca, Ltd., Takenaka Corporation. Active years: 1991-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Nagata. Retrieved from https://idiyas.com/inventor/yoshikazu-nagata

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 = 3.6

ph-index = 5

Forward Citations = 126(Granted Patents)


Location History:

  • Kamisumachi, JP (1991)
  • Ibarakiken, JP (1996 - 1997)
  • Ibaraki, JP (1999)

Company Filing History:

goldMedal5 out of 42 
 
Petoca, Ltd.
 patents
silverMedal3 out of 61 
 
Takenaka Corporation
 patents
where one patent can have more than one assignee

Years Active: 1991-1999

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5 patents (USPTO):Explore Patents
1. 5855663 - Carbon fibers for reinforcement of cement and cement composite material (1999-01-05),
2. 5686181 - Carbon fibers for reinforcement of cement and cement composite material (1997-11-11),
3. 5652058 - Carbon fiber rovings for reinforcement of concrete (1997-07-29),
4. 5536486 - Carbon fibers and non-woven fabrics (1996-07-16),
5. 5035942 - Flexible materials for reflecting electromagnetic wave (1991-07-30),

Title: Innovations of Yoshikazu Nagata

Introduction

Yoshikazu Nagata is a notable inventor based in Ibaraki-ken, Japan. He has made significant contributions to the field of materials science, particularly in the development of carbon fibers for cement reinforcement. With a total of five patents to his name, his work has the potential to enhance the strength and durability of cement-based materials.

Latest Patents

Nagata's latest patents focus on carbon fibers designed for the reinforcement of cement and cement composite materials. These carbon fibers are produced by applying various esters as sizing agents, which improve their adhesive properties to cement. The resulting cement composite material boasts a bending strength of 300 kgf/cm² or more, utilizing cut carbon fibers with a specific fiber length and mixing volume ratio. This innovation allows for excellent process passage properties through direct spray methods, making it suitable for various construction applications.

Career Highlights

Throughout his career, Yoshikazu Nagata has worked with reputable companies such as Petoca, Ltd. and Takenaka Corporation. His experience in these organizations has contributed to his expertise in materials development and innovation.

Collaborations

Nagata has collaborated with notable coworkers, including Katsumi Takano and Sadatoshi Ohno. Their combined efforts have likely advanced the research and development of innovative materials in the construction industry.

Conclusion

Yoshikazu Nagata's contributions to the field of cement reinforcement through carbon fiber technology demonstrate his commitment to innovation and excellence. His patents reflect a significant advancement in material science, paving the way for stronger and more durable construction materials.

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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