Shiojiri, Japan

Yoshihiro Koizumi

This inventor holds 68 USPTO granted patents, plus 2 CIPO patents and 16 EPO patents, primarily in Ink Cartridge Technology. Top assignees: Seiko Epson Corporation, Toppan Printing Co., Ltd.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Koizumi. Retrieved from https://idiyas.com/inventor/yoshihiro-koizumi

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


% Patents Active = 79.4


 

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 244(Granted Patents)

Forward Citations (Not Self Cited) = 228(Dec 10, 2025)


Location History:

  • Nagano-ken, JP (2002 - 2012)
  • Nagano, JP (2005 - 2017)
  • Suwa, JP (2015 - 2017)
  • Shiojiri, JP (2012 - 2024)

Company Filing History:


Years Active: 2002-2026

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Areas of Expertise:
Ink Cartridge
Printing System
Liquid Ejection
Replenishment Container
Cartridge Unit
Printer
Liquid Container
Ink Supply Bottle
Waste Liquid Container
Liquid Storage
Adaptor
Adhesive Label
68 patents (USPTO):Explore Patents

Title: The Innovative Journey of Yoshihiro Koizumi

Introduction:

Yoshihiro Koizumi, a distinguished inventor hailing from Shiojiri, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents:

Yoshihiro Koizumi's latest patents focus on advancements in robotics, particularly in the development of AI-driven systems for industrial automation and smart home applications.

Career Highlights:

With a career spanning over two decades, Koizumi has established himself as a pioneer in the tech industry. His work has been instrumental in revolutionizing the way we interact with technology on a daily basis.

Collaborations:

Throughout his career, Yoshihiro Koizumi has collaborated with leading tech companies and research institutions to bring his innovative ideas to life. His partnerships have led to the creation of cutting-edge products that have shaped the industry.

Conclusion:

In conclusion, Yoshihiro Koizumi's passion for innovation and dedication to pushing the boundaries of technology have solidified his reputation as a visionary inventor in the world of robotics and AI. His contributions continue to inspire future generations of inventors and tech enthusiasts.

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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