Yokosuka, Japan

Chika Negishi

This inventor holds 21 USPTO granted patents and 3 published patent applications and 5 EPO patents. Top assignee: Canon Kabushiki Kaisha. Active years: 2006-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chika Negishi. Retrieved from https://idiyas.com/inventor/chika-negishi

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

USPTO Granted Patents = 21 

% Patents Active = 38.1

 

Average Co-Inventor Count = 4.8

ph-index = 6

Forward Citations = 133(Granted Patents)


Location History:

  • Kanagawa, JP (2006 - 2007)
  • Kawasaki, JP (2008 - 2010)
  • Yokosuka, JP (2009 - 2014)

Company Filing History:


Years Active: 2006-2014

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21 patents (USPTO):Explore Patents

Title: Innovations by Chika Negishi: Pioneering Organic Light Emitting Devices

Introduction

Chika Negishi, based in Yokosuka, Japan, is an accomplished inventor with a remarkable portfolio of 21 patents. His contributions to the field of organic light-emitting devices have been instrumental in enhancing the efficiency and longevity of these technologies, making him a notable figure in the world of innovations.

Latest Patents

Negishi's latest patents include groundbreaking work on a 4-aminofluorene compound and an organic light-emitting device. The 4-aminofluorene compound is designed to exhibit excellent light-emitting properties. It is represented by a specific general formula, which outlines its structure. Additionally, he has developed an organic light-emitting device that boasts high efficiency, high luminance, and extended lifespan. This device incorporates an anode, a cathode, and a layer containing an organic compound, ensuring that either the anode or cathode is made from transparent or translucent electrode materials. The inclusion of at least one indenochrysene derivative, also represented by a specific general formula, further enhances the device's capabilities.

Career Highlights

Negishi's career at Canon Kabushiki Kaisha has been marked by significant advancements in organic electronics. His relentless pursuit of innovation has not only fulfilled technical challenges but has also opened new avenues for research and development in organic light emissions. His expertise in combining various organic compounds has led to numerous advancements that have the potential for widespread applications in the display industry.

Collaborations

Working alongside esteemed colleagues such as Akihiro Senoo and Akihito Saitoh, Negishi has fostered a collaborative environment that encourages the sharing of ideas and expertise. This teamwork has been pivotal in driving forward the innovative projects at Canon, enabling them to stay at the forefront of technological advancement in the competitive landscape of electronic devices.

Conclusion

Chika Negishi's contributions to the field of organic light-emitting devices underscore his status as a leading inventor. With a solid foundation of 21 patents, his latest innovations highlight significant advancements that could transform the industry. Through his work at Canon Kabushiki Kaisha and his collaborations with talented coworkers, Negishi continues to pave the way for future innovations in organic electronics.

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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