Tokyo, Japan

Keiichi Yahagi

This inventor holds 4 USPTO granted patents. Top assignees: Eiji Yoshida, Other. Active years: 2006-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Yahagi. Retrieved from https://idiyas.com/inventor/keiichi-yahagi

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


% Patents Active = 50.0

Average Co-Inventor Count = 13.0

ph-index = 3

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 2006-2007

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4 patents (USPTO):Explore Patents

Title: Keiichi Yahagi: Innovator in Fluid Extraction Technology

Introduction

Keiichi Yahagi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of fluid extraction technology, holding a total of 4 patents. His innovative designs focus on preventing quality deterioration in bottled fluids, particularly wine.

Latest Patents

One of Yahagi's latest patents is a device for exchanging a bottle closure. This stopper change device includes an airtight chamber body that is detachably mountable on a bottle head. It features a gas supply port for supplying nitrogen gas to the chamber, an air vent valve for discharging air, and two supporting structures that are mutually position changeable. This design allows for the selective placement of either a corkscrew or a substitute stopper above the bottle opening, effectively preventing air from entering the bottle and deteriorating the quality of its contents.

Another significant patent is a fluid extracting device that enables the extraction of a predetermined amount of fluid while maintaining an airtight connection to the bottle. This device allows for partial extraction in multiple operations without compromising the quality of the fluid, even after the bottle has been opened. Such a structure is particularly useful in settings like wine bars, where multiple bottles can be displayed and served.

Career Highlights

Throughout his career, Keiichi Yahagi has worked with various companies, contributing his expertise to the development of innovative technologies. His work has been instrumental in advancing methods for preserving the quality of bottled fluids.

Collaborations

Yahagi has collaborated with notable individuals in the industry, including Eiji Yoshida and Hiroyuki Matsunaga. These collaborations have further enhanced his innovative capabilities and contributed to the success of his inventions.

Conclusion

Keiichi Yahagi's contributions to fluid extraction technology demonstrate his commitment to innovation and quality preservation. His patents reflect a deep understanding of the challenges faced in the industry and offer practical solutions to enhance the consumer experience.

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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