Yokohama, Japan

Hisashi Nakasone

This inventor holds 26 USPTO granted patents and 4 published patent applications, primarily in Locking Mechanisms. Top assignee: Piolax, Inc.. Active years: 2010-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Nakasone. Retrieved from https://idiyas.com/inventor/hisashi-nakasone

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

Calculating rank
USPTO Granted Patents = 26 

% Patents Active = 96.2

Average Co-Inventor Count = 1.0

ph-index = 6

Forward Citations = 109(Granted Patents)


Location History:

  • Yokohama, JP (2010 - 2022)
  • Kanagawa, JP (2013 - 2024)

Company Filing History:


Years Active: 2010-2025

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Areas of Expertise:
Rotation Member
Unlocking Device
Lock Lever
Opening/Closing Device
Electric Lock
Locking Device
Stopper Device
Shock-Absorbing Device
Damping Device
Hinge Device
Free Stop Hinge
Pressing Device
26 patents (USPTO):Explore Patents

Title: Innovations by Hisashi Nakasone in Yokohama, Japan

Introduction: Hisashi Nakasone is a prominent inventor based in Yokohama, Japan, known for his contributions to innovative locking mechanisms. With a remarkable portfolio of 24 patents, Nakasone has made significant advancements in the design and functionality of unlocking devices and lock mechanisms.

Latest Patents: Among his latest inventions, Nakasone developed an unlocking device that features a rotating member, a housing, an operating member, and a biasing member. The intricacies of this device include a pressed portion on the rotating member and a retaining portion, ensuring efficient operation. Another notable invention is a lock device for opening and closing a body, which includes an operation member designed for seamless engagement and disengagement, showcasing Nakasone's expertise in security technology.

Career Highlights: Hisashi Nakasone has been a valuable member of Piolax, Inc., a company renowned for its innovative solutions in locking mechanisms. His role has allowed him to further enhance his skills and contribute to the company's reputation for cutting-edge inventions.

Collaborations: Nakasone has worked closely with his coworker, Toshihiro Shimizu, fostering a collaborative environment that encourages creativity and engineering excellence. Together, they have contributed to the development of advanced locking technologies.

Conclusion: Hisashi Nakasone's innovations in the field of locking mechanisms have not only advanced security technology but also positioned him as a notable inventor in Japan. His ongoing work at Piolax, Inc. and his collaboration with talented colleagues continue to inspire future developments in the industry.

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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