Tokyo, Japan

Kazutoshi Kumagai

This inventor holds 4 USPTO granted patents and 13 published patent applications. Top assignee: Olympus Corporation. Active years: 2018-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazutoshi Kumagai. Retrieved from https://idiyas.com/inventor/kazutoshi-kumagai

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

USPTO Granted Patents = 4 

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Location History:

  • Hachioji, JP (2018)
  • Tokyo, JP (2018 - 2019)
  • Kanagawa, JP (2020)

Company Filing History:


Years Active: 2018-2020

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4 patents (USPTO):Explore Patents

Title: Kazutoshi Kumagai: Innovator in Medical Technology

Introduction

Kazutoshi Kumagai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of medical technology, particularly in the development of innovative observation methods for the human body. With a total of 4 patents to his name, Kumagai continues to push the boundaries of medical science.

Latest Patents

Kumagai's latest patents include a pericardial-cavity observing method. This method involves inserting an endoscope sheath and an endoscope into the space between the heart and the pericardium. It includes a step of positioning a protruding portion closer to the pericardium than an optical member. This allows for a greater angle to be formed between the centerline of the protruding portion and the optical member, facilitating better observation of the heart. Another notable patent is for a scanner unit, which features a tubular elastic part with external marks and a piezoelectric element bonded to a specific region. This innovative design enhances the functionality of optical fiber scanners and observation apparatuses.

Career Highlights

Kumagai is currently employed at Olympus Corporation, a leading company in the field of medical technology. His work at Olympus has allowed him to develop groundbreaking technologies that improve medical observation techniques. His contributions have been instrumental in advancing the capabilities of endoscopic procedures.

Collaborations

Kumagai has collaborated with notable colleagues such as Yoshiro Okazaki and Hiroshi Tsuruta. These partnerships have fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Kazutoshi Kumagai is a distinguished inventor whose work in medical technology has led to significant advancements in observation methods. His innovative patents and collaborations continue to shape the future of medical science.

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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