Gunma, Japan

Kahori Funabashi

This inventor holds 2 USPTO granted patents. Top assignee: Kabushiki Kaisha Pilot Corporation. Active years: 2002-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kahori Funabashi. Retrieved from https://idiyas.com/inventor/kahori-funabashi

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2002-2003

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2 patents (USPTO):Explore Patents

Title: Kahori Funabashi: Innovator in Non-Aqueous Ball Point Pen Ink

Introduction

Kahori Funabashi is a notable inventor based in Gunma, Japan. She has made significant contributions to the field of writing instruments, particularly in the development of non-aqueous ball point pen inks. With a total of 2 patents to her name, Funabashi's work has enhanced the functionality and performance of ball point pens.

Latest Patents

Her latest patents include innovations such as "Gelled non-aqueous ball point pen ink for forming drawn line approximate to that of aqueous ball point pen" and "Non-aqueous ball point pen ink and ball point pen using the ink." The first patent describes a non-aqueous ball point pen ink that consists of a colorant, an organic solvent, a non-Newtonian viscosity imparting agent, and a thickening agent, specifically polyvinyl pyrrolidone with a weight-average molecular weight of about 40,000 to 55,000. This formulation ensures that the ink maintains a specific viscosity range, providing a smooth writing experience. The second patent further refines the ink composition, incorporating different molecular weights of polyvinyl pyrrolidone to eliminate feathering and blobbing, prevent ink leakage, and enhance writing smoothness.

Career Highlights

Kahori Funabashi is currently employed at Kabushiki Kaisha Pilot Corporation, where she continues to innovate in the field of writing instruments. Her work has not only contributed to the company's product line but has also set new standards in ink performance.

Collaborations

Funabashi has collaborated with notable coworkers, including Takeshi Fujii and Teruaki Fukasawa, to advance her research and development efforts. Their combined expertise has played a crucial role in the successful creation of her patented technologies.

Conclusion

Kahori Funabashi's contributions to the development of non-aqueous ball point pen inks demonstrate her innovative spirit and commitment to enhancing writing instruments. Her patents reflect a deep understanding of material science and practical application, making her a significant figure in the 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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