Yokohama, Japan

Hachiro Nakagawa

This inventor holds 1 USPTO granted patent. Top assignee: Tokico, Ltd.. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hachiro Nakagawa. Retrieved from https://idiyas.com/inventor/hachiro-nakagawa

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 = 6.0

ph-index = 1

Forward Citations = 20(Granted Patents)


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: Hachiro Nakagawa: Innovator in Air Compressor Technology

Introduction: Hachiro Nakagawa is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of air compressor technology. His innovative designs have paved the way for advancements in this essential machinery.

Latest Patents: Nakagawa holds a patent for an air compressor assembly. This invention includes an air tank, a compressor body, and a joining part that connects the two components. The design features an axis along the air tank and a parallel axis for the compressor body, which supplies compressed air to the tank. The cylinder head of the compressor body is positioned perpendicular to the compressor body and inclined towards the tank, enhancing the efficiency of the assembly. He has 1 patent to his name.

Career Highlights: Nakagawa is associated with Tokico, Ltd., a company known for its innovative engineering solutions. His work at Tokico has allowed him to focus on developing advanced air compressor systems that meet modern industrial needs.

Collaborations: Throughout his career, Nakagawa has collaborated with talented individuals such as Harutsugu Ushiota and Akihiko Hama. These partnerships have fostered a creative environment that encourages innovation and problem-solving.

Conclusion: Hachiro Nakagawa's contributions to air compressor technology exemplify the spirit of innovation. His patent and work at Tokico, Ltd. highlight his commitment to advancing engineering solutions.

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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