Niigata, Japan

Tadao Nakagawa

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Seiki Co., Ltd.. Active years: 2005-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadao Nakagawa. Retrieved from https://idiyas.com/inventor/tadao-nakagawa-v99ud2hr

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 = 6.0

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 2005-2008

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2 patents (USPTO):Explore Patents

Title: Tadao Nakagawa: Innovator in Liquid Level Detection

Introduction

Tadao Nakagawa is a notable inventor based in Niigata, Japan. He has made significant contributions to the field of liquid level detection technology. With a total of 2 patents to his name, Nakagawa's work focuses on creating efficient and cost-effective solutions for liquid level monitoring.

Latest Patents

One of Nakagawa's latest inventions is a liquid level detector that provides an inexpensive and small-sized solution for monitoring liquid levels. This device includes a float that moves in accordance with variations in liquid level, a hard circuit board, and resistors. The detector outputs an electrical signal based on the resistances of the resistors, which are varied by a contact coming into contact with a sliding path made of electrodes.

Another significant patent is a liquid level detecting apparatus designed to resist deterioration and corrosion while keeping manufacturing costs low. This apparatus features fixed electrodes with a sliding contact point that moves in accordance with the fluctuation of a float. The fixed electrodes are made of a combination of silver and palladium, ensuring durability and reliability in various environments.

Career Highlights

Tadao Nakagawa is currently employed at Nippon Seiki Co., Ltd., where he continues to innovate in the field of liquid level detection. His work has been instrumental in advancing technology that is both effective and affordable for various applications.

Collaborations

Throughout his career, Nakagawa has collaborated with notable colleagues, including Kiyoshi Enomoto and Yoshiyuki Shimazaki. These partnerships have contributed to the development of innovative solutions in their respective fields.

Conclusion

Tadao Nakagawa's contributions to liquid level detection technology highlight his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in this field and a dedication to providing practical solutions.

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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