Hitachinaka, Japan

Shouichi Hirai

This inventor holds 5 USPTO granted patents and 1 published patent application and 5 EPO patents. Top assignee: Hitachi Koki Co., Ltd.. Active years: 2011-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shouichi Hirai. Retrieved from https://idiyas.com/inventor/shouichi-hirai

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

USPTO Granted Patents = 5 

 

Average Co-Inventor Count = 4.0

ph-index = 4

Forward Citations = 41(Granted Patents)


Company Filing History:


Years Active: 2011-2015

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5 patents (USPTO):Explore Patents

Title: Innovations of Shouichi Hirai: Pioneering Fastening Technology

Introduction

Shouichi Hirai is a renowned inventor based in Hitachinaka, Japan, recognized for his innovative contributions to fastening technology. With a total of five patents to his name, Hirai has made significant advancements in the field, particularly regarding nailing machines and fastener driving tools.

Latest Patents

Hirai's latest inventions include a Pneumatic Driving Machine and a Fastener Driving Tool. The Pneumatic Driving Machine features an air passage that facilitates communication between a cylinder and a return air chamber, where compressed air is stored to return the piston to its initial position. The integrated control valve manages the entry of compressed air, allowing for efficient operation even when the reaction force is minimal. This innovation ensures that the machine effectively reduces driving force by using compressed air as a damper for enhanced performance.

The Fastener Driving Tool is designed for both linear driving and rotational fastening of fasteners into workpieces. This tool comprises a robust housing, a nose portion with an injection passage, and a magazine that supplies fasteners. A movable push lever interacts with combustion chamber frames and cylinders, providing versatility in fastening applications. Notably, the motion conversion mechanism in this tool translates the linear motion of a rod into the rotational motion of the bit, showcasing Hirai's ingenuity in design.

Career Highlights

Hirai has established a distinguished career at Hitachi Koki Co., Ltd., where he has played a crucial role in developing cutting-edge fastening solutions. His contributions to the industry not only enhance operational efficiency but also improve the safety and accuracy of fastening applications.

Collaborations

Throughout his career, Hirai has collaborated with esteemed colleagues such as Norikazu Baba and Yasuki Ohmori. Together, they have fostered an innovative environment that encourages the development of groundbreaking technologies in the fastening sector.

Conclusion

Shouichi Hirai's impressive portfolio of patents and his commitment to innovation underscore his significance as an inventor in the field of fastening technology. His work continues to inspire advancements, demonstrating the impact of thoughtful design and engineering in everyday applications. As the industry evolves, Hirai's inventions remain essential to modern fastening 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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