Kanagawa, Japan

Masaharu Shimizu

This inventor holds 14 USPTO granted patents and 1 EPO patent. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation. Active years: 2003-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaharu Shimizu. Retrieved from https://idiyas.com/inventor/masaharu-shimizu

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


% Patents Active = 64.3


Average Co-Inventor Count = 5.5

ph-index = 4

Forward Citations = 40(Granted Patents)


Location History:

  • Nasushiobara, JP (2009)
  • Kanagawa, JP (2010 - 2015)
  • Yokohama, JP (2003 - 2016)
  • Kanagawa-ken, JP (2014 - 2017)

Company Filing History:


Years Active: 2003-2017

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14 patents (USPTO):Explore Patents

Title: The Innovative Legacy of Masaharu Shimizu

Introduction

Masaharu Shimizu, a prolific inventor based in Kanagawa, Japan, holds an impressive portfolio of 14 patents. His work, particularly in the field of switchgear technology and lubrication mechanisms, showcases his expertise and innovative spirit, contributing significantly to the industry.

Latest Patents

Shimizu’s most recent patents include a "Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof". This invention features a sophisticated arrangement of a piston rod and a first piston within external and internal cylinders, along with a second piston designed to absorb volume changes in the operating fluid. Furthermore, the device integrates two return springs to ensure optimal functionality of the piston rod and fluid operations. Another notable patent is for a "Switchgear and switchgear operating mechanism", which consists of a complex system including a ratchet wheel, a stop lever, and multiple chains and sprockets, highlighting his skill in creating intricate mechanical systems.

Career Highlights

Shimizu has been associated with reputable companies such as Toshiba and Toshiba Medical Systems Corporation, where he has utilized his innovative capabilities to enhance electrical and mechanical systems. His tenure at these organizations allowed him to develop and refine technologies that have made significant impacts in their respective fields.

Collaborations

Throughout his career, Masaharu Shimizu has worked alongside notable colleagues like Yoshikata Kobayashi and Yoshiaki Ohda. These collaborations not only facilitated the exchange of ideas but also contributed to the advancement of technology through joint inventions and projects.

Conclusion

Masaharu Shimizu's dedication to innovation and his contributions to the field of switchgear technology exemplify the role of inventors in shaping the future of industry. With his extensive patent portfolio and collaborations, Shimizu continues to be an influential figure in the world of inventions, inspiring future generations of engineers and inventors. His work stands as a testament to the power of creativity and technical expertise in driving progress.

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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