Miyazaki, Japan

Eiji Ishikawa

This inventor holds 4 USPTO granted patents. Top assignees: Sumitomo Pharmaceuticals Company Limited, Other. Active years: 1993-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Ishikawa. Retrieved from https://idiyas.com/inventor/eiji-ishikawa-ovmvs7o6

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 = 1.4

ph-index = 4

Forward Citations = 118(Granted Patents)


Location History:

  • Miyazaki-shi, Miyazaki, JP (1993)
  • Miyazaki-shi, Miyazaki JP (1999 - 2000)

Company Filing History:

goldMedal2 out of 174 
 
Sumitomo Pharmaceuticals Company Limited
 patents
silverMedal4 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1993-2000

Loading Chart...
4 patents (USPTO):Explore Patents

Title: Eiji Ishikawa: Innovator in Immunoassay Technology

Introduction

Eiji Ishikawa is a notable inventor based in Miyazaki, Japan. He has made significant contributions to the field of immunoassay technology, holding a total of 4 patents. His innovative approaches have enhanced the efficiency and speed of assay methods, making a substantial impact in the medical and research sectors.

Latest Patents

One of Eiji Ishikawa's latest patents is the "Circulation Thin Layer Liquid Phase Assay." This assay method is designed to efficiently trap an analyte in a specific amount of reaction liquid within a short reaction time. The method is characterized by immersing only a part of a solid phase, which is coated with a substance that specifically binds to the analyte, in a pool of reaction liquid. This innovative approach allows for the exchange of the solid phase during the reaction, enabling any surface of the solid phase to be immersed in the reaction liquid at predetermined intervals. This method significantly increases reaction speed compared to conventional methods, resulting in more efficient trapping of the analyte on the solid phase in a shorter time frame. This reaction system is particularly useful for detecting enzyme labels in enzyme immunoassays.

Another significant patent is the "Immunoassay Plate and Use Thereof." This invention features an immunoassay plate designed for immune complex transfer immunoassays. It comprises a well-type solid phase and a dip stick-type solid phase that can be inserted into the well-type solid phase. The dip stick-type solid phase is coated with one of two specific substances, while the well-type solid phase is coated with the other. This innovative design allows for effective immune complex transfer during immunoassays.

Career Highlights

Eiji Ishikawa has worked with reputable companies, including Sumitomo Pharmaceuticals Company Limited. His work has focused on developing advanced technologies that improve the accuracy and efficiency of immunoassays.

Collaborations

Throughout his career, Eiji has collaborated with notable individuals such as Hidetaka Nakamoto and Satoshi Tanaka. These collaborations have contributed to the advancement of his innovative projects and patents.

Conclusion

Eiji Ishikawa's contributions to immunoassay technology through his patents demonstrate his commitment to innovation in the field. His work continues to influence the development of more

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]
Loading…