Shizuoka, Japan

Makoto Tokunaga

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Nikkiso Company Limited. Active years: 2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Tokunaga. Retrieved from https://idiyas.com/inventor/makoto-tokunaga-ffbb2lfx

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


% Patents Active = 100.0


Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2021

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1 patent (USPTO):Explore Patents

Title: The Innovations of Makoto Tokunaga in Blood Purification Technology

Introduction: Makoto Tokunaga is an accomplished inventor based in Shizuoka, Japan, known for his significant contributions to medical technology, particularly in the field of blood purification. With a focus on improving the accuracy of blood pumps, Tokunaga's work has the potential to enhance patient care in dialysis and other medical treatments.

Latest Patents: One of the notable innovations by Makoto Tokunaga is his patent for a blood purification apparatus. This invention specifically addresses the challenge of reducing error in the amount of discharge from blood pumps, which can be affected by changes in suction pressure. The apparatus features a blood circuit for extracorporeal circulation, a dialyzer for blood purification, and a unique squeezable tube that enhances the functionality of the blood pump.

Career Highlights: Tokunaga's career is marked by his tenure at Nikkiso Company Limited, a leading organization in medical technology. His innovative mindset and dedication have led him to develop critical medical devices that seek to improve patient outcomes. Through his work, he has established himself as a key figure in advancements in blood purification processes.

Collaborations: Working alongside Kunihiko Akita, Tokunaga has engaged in collaborative efforts that expand the potential of his inventions. This partnership exemplifies the spirit of teamwork in research and development within the medical technology sector, further driving innovation and enhancing the effectiveness of medical devices.

Conclusion: Makoto Tokunaga's contributions to the field of blood purification showcase the importance of innovation in medical technology. With his patent and ongoing work at Nikkiso Company Limited, he continues to influence the development of devices that aim to improve health outcomes for patients globally. His legacy serves as an inspiration for future inventors in the healthcare domain.

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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