Tokyo, Japan

Noriko Kajiura

This inventor holds 11 USPTO granted patents and 3 published patent applications, plus 5 CIPO patents and 4 EPO patents. Top assignees: Nippon Kayaku Kabushiki Kaisha, Nippon Kayaku Kabushiki. Active years: 2007-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noriko Kajiura. Retrieved from https://idiyas.com/inventor/noriko-kajiura

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

Calculating rank
USPTO Granted Patents = 11 

% Patents Active = 63.6


 

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 56(Granted Patents)


Location History:

  • Katsushika-ku, JP (2007)
  • Kita-ku, JP (2010 - 2011)
  • Tokyo, JP (2011 - 2013)

Company Filing History:


Years Active: 2007-2013

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11 patents (USPTO):Explore Patents

Title: Noriko Kajiura: Innovator in Ink Technology

Introduction

Noriko Kajiura is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of ink technology, holding a total of 11 patents. Her work focuses on developing innovative coloring matters and ink compositions that enhance the quality and durability of printed images.

Latest Patents

Kajiura's latest patents include a coloring matter consisting of a trisazo compound, ink compositions, and a recording method. One of her notable inventions is a coloring matter for black ink that is highly soluble in water-based media. This innovation allows for the production of black recorded images that exhibit excellent fastness and ozone gas resistance. The coloring matter comprises at least one trisazo compound represented by a specific general formula, which includes various substituents that enhance its properties. Another significant patent involves a water-soluble azo compound that provides high chroma saturation and hue suitable for inkjet recording, ensuring high fastness and excellent storage stability.

Career Highlights

Throughout her career, Kajiura has worked with notable companies, including Nippon Kayaku Co., Ltd. Her experience in these organizations has allowed her to refine her expertise in ink technology and contribute to advancements in the field.

Collaborations

Kajiura has collaborated with esteemed colleagues such as Hiroyuki Matsumoto and Yutaka Ishii. These partnerships have fostered innovation and have been instrumental in her research and development efforts.

Conclusion

Noriko Kajiura's contributions to ink technology through her innovative patents have significantly impacted the industry. Her work continues to influence the development of high-quality ink compositions that meet the demands of modern printing applications.

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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