Sayama, Japan

Kunio Tanai

This inventor holds 1 USPTO granted patent. Top assignee: Citizen Watch Company, Ltd.. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunio Tanai. Retrieved from https://idiyas.com/inventor/kunio-tanai

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 9(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: Kunio Tanai: Innovator in Timepiece Technology

Introduction

Kunio Tanai is a notable inventor based in Sayama, Japan. He has made significant contributions to the field of electronic timepieces. His innovative work has led to the development of a unique rotor assembly that enhances the functionality of electro-mechanical transducers.

Latest Patents

Tanai holds a patent for a rotor assembly designed for an electro-mechanical transducer of an electronic timepiece. This invention features a metallic protecting member that is fixedly mounted on a rotary shaft. Additionally, a rare earth magnet is securely supported at its outer periphery by the metallic protecting member. This design improves the efficiency and reliability of electronic timepieces.

Career Highlights

Kunio Tanai is associated with Citizen Watch Company, Ltd., a leading manufacturer in the watch industry. His work at Citizen has allowed him to focus on innovative solutions that enhance timekeeping technology. With a patent portfolio that includes 1 patent, Tanai has established himself as a key figure in the development of advanced timepiece mechanisms.

Collaborations

Throughout his career, Tanai has collaborated with talented individuals such as Yasuaki Nakayama and Shigeru Aoyama. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Kunio Tanai's contributions to the field of electronic timepieces exemplify the spirit of innovation. His patented rotor assembly represents a significant advancement in timepiece technology. Tanai's work continues to influence the industry and inspire future inventors.

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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