Ageo, Japan

Takashi Kawaguchi

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Piston Ring Co., Ltd.. Active years: 1989-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Kawaguchi. Retrieved from https://idiyas.com/inventor/takashi-kawaguchi-vpt3gee1

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 = 3.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1989-1990

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2 patents (USPTO):Explore Patents

Title: Takashi Kawaguchi: Innovator in Ultrasonic Joint Inspection Technology

Introduction

Takashi Kawaguchi is a prominent inventor based in Ageo, Japan. He has made significant contributions to the field of ultrasonic joint inspection technology. With a total of 2 patents, Kawaguchi has developed innovative methods and devices that enhance the examination of joints in composite camshafts.

Latest Patents

Kawaguchi's latest patents include an ultrasonic joint inspection device and method. This invention provides a method and device for examining the joint between a hollow steel shaft and a piece joined to the steel hollow shaft of a composite camshaft using ultrasonic examination. In this process, the composite camshaft is submerged in a liquid, and a probe from an ultrasonic search unit is inserted inside the hollow steel shaft. The ultrasonic examination is conducted from within the hollow steel shaft, allowing for a consistent distance from the inside surface to the joint. This design ensures that any type of joint in the composite camshaft can be examined effectively. Additionally, since the probe does not contact the inside surface of the hollow steel shaft, it remains free from abrasion, enhancing its longevity.

Career Highlights

Kawaguchi is currently employed at Nippon Piston Ring Co., Ltd., where he continues to innovate in the field of ultrasonic technology. His work has been instrumental in advancing the methods used for joint inspections in various applications.

Collaborations

Kawaguchi has collaborated with notable coworkers, including Yoshiaki Fujita and Satoshi Kawai. Their combined expertise has contributed to the successful development of his patented technologies.

Conclusion

Takashi Kawaguchi is a key figure in the field of ultrasonic joint inspection technology. His innovative patents and contributions to Nippon Piston Ring Co., Ltd. highlight his commitment to advancing engineering practices.

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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