Kitakyushu, Japan

Yoshihiro Kiyofuji

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Toto Ltd.. Active years: 2010-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Kiyofuji. Retrieved from https://idiyas.com/inventor/yoshihiro-kiyofuji

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


% Patents Active = 66.7

 

Average Co-Inventor Count = 4.1

ph-index = 2

Forward Citations = 20(Granted Patents)


Location History:

  • Fukuoka, JP (2010)
  • Kitakyushu, JP (2019 - 2023)

Company Filing History:


Years Active: 2010-2023

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3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Yoshihiro Kiyofuji

Introduction

Yoshihiro Kiyofuji is a notable inventor based in Kitakyushu, Japan. He has made significant contributions to the field of plumbing technology, particularly through his innovative designs for faucet devices and mixing valves. With a total of 3 patents to his name, Kiyofuji continues to push the boundaries of engineering and design.

Latest Patents

Kiyofuji's latest patents include a faucet device and a hot and cold water mixing valve device. The faucet device features a base member, an outer shell member, and a metallic casing member that is inserted into the outer shell. This design allows for efficient hot and cold water supply through a single lever cartridge. The hot and cold water mixing valve device includes a valve device main body that facilitates communication between the hot and cold water inlets, ensuring optimal performance and user convenience.

Career Highlights

Kiyofuji has spent a significant portion of his career at Toto Ltd., a leading company in the plumbing and sanitary ware industry. His work has been instrumental in developing advanced plumbing solutions that enhance user experience and efficiency. His innovative designs have not only improved functionality but have also contributed to the aesthetic appeal of modern plumbing fixtures.

Collaborations

Throughout his career, Kiyofuji has collaborated with talented individuals such as Makoto Fujii and Shoji Miura. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Yoshihiro Kiyofuji's contributions to plumbing technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, paving the way for future innovations.

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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