Kanagawa, Japan

Masaru Hiratsuka

This inventor holds 18 USPTO granted patents, plus 1 CIPO patent and 2 EPO patents, primarily in Battery Technology. Top assignees: Sony Corporation, Murata Manufacturing Co., Ltd., Sony Co., Ltd.. Active years: 1991-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Hiratsuka. Retrieved from https://idiyas.com/inventor/masaru-hiratsuka

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


% Patents Active = 83.3



Average Co-Inventor Count = 3.3

ph-index = 7

Forward Citations = 231(Granted Patents)


Location History:

  • Fukushima, JP (2004)
  • Tokyo, JP (2011)
  • Kanagawa, JP (1991 - 2019)

Company Filing History:


Years Active: 1991-2019

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Areas of Expertise:
Battery Pack
Separator Production
Microporous Membrane
Non-Aqueous Electrolyte
Control Method
Insulating Film
Capacity Monitoring
Overcharge Protection
Video Tape Editing
Sealed Battery
Manufacturing Method
Battery Cartridge
18 patents (USPTO):Explore Patents

Title: The Innovative Mind of Masaru Hiratsuka

Introduction: Masaru Hiratsuka is a pioneering inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masaru Hiratsuka holds several recent patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to creating cutting-edge technologies that shape the future.

Career Highlights: With a career spanning over two decades, Masaru Hiratsuka has worked with leading tech companies and research institutions, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Masaru Hiratsuka has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Masaru Hiratsuka's relentless pursuit of innovation and his passion for pushing the boundaries of what is possible make him a true visionary in the world of technology. His impact on the industry is profound, and his legacy will continue to inspire future generations of inventors and innovators.

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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