Tokyo, Japan

Yasuo Kajioka

This inventor holds 7 USPTO granted patents. Top assignees: Shimizu Construction Co., Ltd., Nippon Kokan K.k.. Active years: 1980-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Kajioka. Retrieved from https://idiyas.com/inventor/yasuo-kajioka

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.8

ph-index = 6

Forward Citations = 139(Granted Patents)


Company Filing History:


Years Active: 1980-1992

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7 patents (USPTO):Explore Patents

Title: **Inventor Yasuo Kajioka: Innovating Concrete Solutions**

Introduction

Yasuo Kajioka is a prominent inventor based in Tokyo, Japan, known for his contributions to the construction industry through innovative concrete technologies. With a total of seven patents to his name, Kajioka has developed cutting-edge machines and processes that enhance the efficiency and quality of concrete work.

Latest Patents

Among Kajioka's notable inventions is the **Concrete Leveling Machine**. This advanced equipment is designed to self-propel over freshly laid concrete surfaces, utilizing rotating augers or oscillating stabilizers and a tamper to achieve precise leveling and finishing. The machine employs a laser reference beam to ensure accuracy, adjusting the leveling section based on detected deviations. Its innovative turntable design also facilitates maneuverability through differential driving of its wheels, making it easier to navigate while ensuring a smooth finish.

Another significant patent is the **Method of Manufacturing Concrete**, which involves a unique approach to the mixing of concrete components. Kajioka's method includes the movement of aggregate materials before mixing, coupled with the application of a low-temperature liquid for cooling purposes during the mixing process. This innovation not only improves the quality of concrete but also enhances its consistency and workability.

Career Highlights

Throughout his career, Yasuo Kajioka has worked with renowned companies such as Shimizu Construction Co., Ltd. and Nippon Kokan K.K. His experience in these leading construction firms has allowed him to apply his inventiveness in real-world applications, significantly impacting concrete manufacturing processes.

Collaborations

Kajioka has collaborated with other esteemed professionals in the field, including Tomio Komine and Akira Okada. These collaborations have contributed to the advancement and refinement of his patented technologies, promoting innovation within the construction sector.

Conclusion

Yasuo Kajioka's passion for innovation and dedication to improving concrete technologies exemplify the spirit of invention. His patents not only enhance the efficiency of construction practices but also set new standards in the industry. With each new invention, Kajioka continues to pave the way for advancements in concrete applications, solidifying his legacy as a pioneer in the field.

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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