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For the Inventor, By the Inventor

Narashino, Japan

Yasufumi Naoi

This inventor holds 5 USPTO granted patents. Top assignee: Seiko Precision Inc.. Active years: 2002-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasufumi Naoi. Retrieved from https://idiyas.com/inventor/yasufumi-naoi

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

USPTO Granted Patents = 5

% Patents Active = 20.0

Average Co-Inventor Count = 2.9

ph-index = 3

Forward Citations = 66(Granted Patents)


Location History:

  • Chiba, JP (2004)
  • Narashino, JP (2002 - 2006)

Company Filing History:

goldMedal5 out of 254 
 
Seiko Precision Inc.
 patents

Years Active: 2002-2006

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5 patents (USPTO):Explore Patents
1. 7014908 - EL insert molding (2006-03-21),
2. 6850004 - EL composite structure (2005-02-01),
3. 6696097 - Method of making a shaped plastic magnet (2004-02-24),
4. 6595653 - Light illuminating type switch (2003-07-22),
5. 6373008 - Light illuminating type switch (2002-04-16),

Title: Yasufumi Naoi: Innovator in EL Technology

Introduction

Yasufumi Naoi is a prominent inventor based in Narashino, Japan. He has made significant contributions to the field of electroluminescent (EL) technology, holding a total of 5 patents. His innovative work has paved the way for advancements in the design and functionality of EL devices.

Latest Patents

One of Yasufumi Naoi's latest patents is the EL insert molding. This invention ensures that the end face of a transparent electrode or a backside electrode of an EL element is not exposed at the outer periphery of the molding. A decorative film is applied to the front side of the EL element, while molding resin is injected onto its backside, forming a protective resin portion. The decorative film is designed to cover the end portion of the EL element, extending beyond it to enhance durability.

Another notable patent is the EL composite structure. This innovation integrates a substrate surface, which serves as an outer packaging case, with a decorative film and an EL device. The upper case features through-holes that allow the transparent electrode layer and the back electrode layer of the EL device to be exposed. Contact pins are elastically connected to these electrodes via the through-holes, facilitating a connection to an EL-driving circuit.

Career Highlights

Yasufumi Naoi is currently employed at Seiko Precision Inc., where he continues to develop cutting-edge technologies in the field of EL devices. His work has been instrumental in enhancing the performance and aesthetic appeal of these products.

Collaborations

Throughout his career, Yasufumi has collaborated with talented individuals such as Atsushi Saito and Koji Yoneda. These partnerships have contributed to the successful development of innovative technologies in the electroluminescent sector.

Conclusion

Yasufumi Naoi's contributions to EL technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the design and functionality of electroluminescent devices, showcasing the importance of innovation in technology.

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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