Yokohama, Japan

Chihiro Ito

This inventor holds 2 USPTO granted patents. Top assignees: Nhk Spring Co., Ltd., Nhk Spring, Ltd.. Active years: 2024-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chihiro Ito. Retrieved from https://idiyas.com/inventor/chihiro-ito-kriclb3h

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 = 9.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2024-2026

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2 patents (USPTO):Explore Patents

Title: Chihiro Ito and Coil Spring Innovation.

Introduction

Chihiro Ito is an inventor associated with Yokohama, Japan, and with NHK Spring Co., Ltd. Her patent work includes an invention concerning the construction and coating of coil springs. Ito is credited with 2 patents.

Latest Patents

Ito’s latest listed patent, “Coil spring,” describes a spring made from a wire rod with an elastic coat. The wire rod has round, transitional, and substantially square cross-sectional portions. In the coil section, opposing planes of the square portion face one another, and the elastic coat covers at least one of those planes. The coating continues across the round, transitional, and square portions.

The supplied patent information lists the same “Coil spring” description twice. Both entries describe a design that combines changing wire-rod cross sections with a continuous elastic coating.

Career Highlights

Ito’s listed company affiliations include NHK Spring Co., Ltd. and NHK Spring, Ltd. Her patent record reflects work on coil spring design and materials.

Collaborations

The supplied information names Norifumi Arisaka and Tsuyoshi Matsuda as Ito’s coworkers. It does not specify their roles in the listed patent.

Conclusion

Chihiro Ito’s documented invention focuses on a coil spring with varied wire-rod cross sections and a continuous elastic coating, connecting her patent work with her affiliations in the spring industry.

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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