Saitama, Japan

Hideyo Iwama

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Piston Ring Co., Ltd.. Active years: 2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideyo Iwama. Retrieved from https://idiyas.com/inventor/hideyo-iwama-435h310w

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


Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2004

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1 patent (USPTO):Explore Patents

Title: The Innovations of Hideyo Iwama

Introduction

Hideyo Iwama is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of internal combustion engines, particularly through his innovative designs. His work has been recognized for its practicality and cost-effectiveness.

Latest Patents

Iwama holds a patent for a compression piston ring designed for use in internal combustion engines. This compression piston ring is capable of reducing excessive surface pressure at a gap and adjacent portions during engine operation. It is produced at a low cost and features a generally circular shape without any notched portions. The dimensional requirements for the piston ring specify that the ratio of inner diameter to radial length ranges from 40 to 60, and the ratio of inner diameter to axial length ranges from 30 to 55. This design is particularly effective as a first compression piston ring for supercharging type diesel engines, which provide high engine pressure.

Career Highlights

Iwama is associated with Nippon Piston Ring Co., Ltd., where he has been able to apply his innovative ideas in a practical setting. His work has contributed to advancements in engine technology, enhancing performance and efficiency.

Collaborations

Iwama has collaborated with notable colleagues such as Hideo Negishi and Hideshi Hitosugi. These partnerships have fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Hideyo Iwama's contributions to the field of internal combustion engines through his patented compression piston ring exemplify his commitment to innovation and engineering excellence. His work continues to influence the industry and improve engine performance.

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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