Fujisawa, Japan

Hiroshi Yajima

This inventor holds 1 USPTO granted patent. Top assignee: Isuzu Motors Limited. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Yajima. Retrieved from https://idiyas.com/inventor/hiroshi-yajima-w7u7l1gg

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: Hiroshi Yajima: Innovator in Engine Technology

Introduction

Hiroshi Yajima is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of engine technology, particularly with his innovative designs for DOHC engines. His work has been recognized for its efficiency and cost-effectiveness in manufacturing.

Latest Patents

Hiroshi Yajima holds a patent for a camshaft arrangement for a V-type DOHC engine. This invention includes a crankshaft, right and left cylinder heads, and three cylinders formed for each cylinder head. The design features two intake and exhaust valves for each cylinder, along with first and second camshafts for the right cylinder head and third and fourth camshafts for the left cylinder head. The power transfer mechanism is designed to transmit drive power from the crankshaft to the camshafts, allowing them to rotate in the same direction. This innovative arrangement significantly reduces production costs and improves efficiency.

Career Highlights

Hiroshi Yajima is currently employed at Isuzu Motors Limited, where he continues to develop advanced engine technologies. His work has contributed to the company's reputation for producing high-quality vehicles. His patent reflects his commitment to innovation in the automotive industry.

Collaborations

Hiroshi has collaborated with talented coworkers such as Tomohiro Sugano and Yukihiro Kawashima. Their combined expertise has fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Hiroshi Yajima's contributions to engine technology exemplify the spirit of innovation. His patent for a camshaft arrangement demonstrates his ability to enhance manufacturing efficiency while maintaining high performance. His work continues to influence the automotive 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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