Kanagawa, Japan

Masateru Naganuma

This inventor holds 5 USPTO granted patents. Top assignees: Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation), Seikagaku Kogyo Kabushiki Kaisha, Top Corporation. Active years: 1995-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masateru Naganuma. Retrieved from https://idiyas.com/inventor/masateru-naganuma

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 5

Forward Citations = 134(Granted Patents)


Company Filing History:


Years Active: 1995-2000

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5 patents (USPTO):Explore Patents

Title: The Innovative Mind of Masateru Naganuma

Introduction: Masateru Naganuma, an accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of medical devices. With a total of five patents to his name, Naganuma's work focuses on improving syringe functionality and efficiency.

Latest Patents: Among his recent creations, two notable patents stand out. The first is a "Holder for a syringe and an injection device using the holder." This invention features a holder designed with an inner diameter that perfectly fits a cylinder barrel, created into a tubular shape with a length matching that of the barrel. Additionally, the holder is equipped with a flange at its basal end, enhancing usability. The second patent is for an "Auxiliary finger flange for a syringe," which aims to improve the grip and control during the administration of injections.

Career Highlights: Naganuma has had a distinguished career at Seikagaku Corporation, where he applied his innovative thinking to advance the company's medical product offerings. His expertise in device design and functionality has helped shape the development of key medical tools.

Collaborations: Throughout his career, Masateru Naganuma has worked alongside talented individuals such as Yoshihisa Itoh. Their collaboration has fostered creativity and driven significant advancements in the medical device field.

Conclusion: Masateru Naganuma remains a pivotal figure in medical innovation. His impressive patent portfolio reflects his commitment to enhancing healthcare through practical and effective inventions. With a passion for improving medical devices, Naganuma continues to inspire future inventors and innovators 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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