Kanagawa, Japan

Yoichi Nagai

This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignees: Fuji Photo Film Company, Limited, Fujifilm Corporation. Active years: 2003-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichi Nagai. Retrieved from https://idiyas.com/inventor/yoichi-nagai

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 66.7

Average Co-Inventor Count = 3.5

ph-index = 2

Forward Citations = 7(Granted Patents)


Location History:

  • Odawara, JP (2003)
  • Kanagawa, JP (2004 - 2024)

Company Filing History:


Years Active: 2003-2024

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6 patents (USPTO):Explore Patents

Title: Yoichi Nagai: Innovator in Cell Culture Technology

Introduction

Yoichi Nagai is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of cell culture technology, holding a total of 6 patents. His innovative work has advanced the methods and apparatus used in cell culture, which are essential for various applications in biotechnology and medicine.

Latest Patents

One of Yoichi Nagai's latest patents is a cell culture apparatus and method. This invention includes a culture vessel that stores a cell suspension containing cells. It features a first filter part with a first filter membrane that performs membrane separation treatment on the cell suspension extracted from the culture vessel. Additionally, it has a first circulation flow path that allows components blocked by the first filter membrane to return to the culture vessel. The apparatus also includes a second filter part with a second filter membrane that performs membrane separation treatment on components of the cell suspension that have permeated through the first filter membrane. Furthermore, it has a second circulation flow path that allows components permeated through the second filter membrane to return to the culture vessel, along with a recovery flow path that recovers components blocked by the second filter membrane. The design ensures that the average hole diameter of the first filter membrane is 20 μm or smaller, satisfying specific conditions regarding the average hole diameters of both filter membranes.

Career Highlights

Throughout his career, Yoichi Nagai has worked with notable companies such as Fujifilm Corporation and Fuji Photo Film Company, Limited. His experience in these organizations has contributed to his expertise in developing innovative technologies in the field of cell culture.

Collaborations

Yoichi Nagai has collaborated with several professionals in his field, including Naoyuki Kawanishi and Shinichi Nakai. These collaborations have likely enhanced his research and development efforts, leading to successful innovations.

Conclusion

In summary, Yoichi Nagai is a distinguished inventor whose work in cell culture technology has resulted in multiple patents and significant advancements in the field. His contributions continue to impact biotechnology and medicine positively.

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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