Chiba, Japan

Hiraku Sonoda

This inventor holds 2 USPTO granted patents. Top assignees: Kawasaki Steel Corporation, Nippon Lime, Ltd.. Active years: 1981-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiraku Sonoda. Retrieved from https://idiyas.com/inventor/hiraku-sonoda

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 = 2.9

ph-index = 2

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 1981-1984

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2 patents (USPTO):Explore Patents

Title: Hiraku Sonoda: Innovator in Industrial Technology

Introduction

Hiraku Sonoda is a notable inventor based in Chiba, Japan. He has made significant contributions to industrial technology, particularly in the field of kiln design and desulfurization processes. With a total of 2 patents, his work has had a considerable impact on the efficiency and effectiveness of industrial operations.

Latest Patents

Sonoda's latest patents include the innovative "Double-incline shaft kiln." This design allows ore materials to be charged into the furnace from the top of a vertical external portion of the shaft. The calcining zone is effectively extended by an injector that directs hot gas flow parallel to the ore materials. This design promotes a more even velocity of material flow, enhancing combustion control and preventing ash from solid fuels from contaminating the calcined material. Another significant patent is the "Desulfurizing agent for injection," which consists mainly of lime powders. This agent is designed to improve the desulfurization process by incorporating specific percentages of silicone oil surfactant, alkaline earth metal compounds, and various fluorides.

Career Highlights

Throughout his career, Hiraku Sonoda has worked with prominent companies such as Nippon Lime, Ltd. and Kawasaki Steel Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in industrial processes.

Collaborations

Sonoda has collaborated with notable coworkers, including Setsuo Tamura and Osamu Haida. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hiraku Sonoda's contributions to industrial technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the future of industrial processes, demonstrating the importance of innovation in this 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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