Tokyo, Japan

Wataru Sagawa

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Pencil Company, Limited. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wataru Sagawa. Retrieved from https://idiyas.com/inventor/wataru-sagawa-byglo4j6

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


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Wataru Sagawa: Innovator in Writing Instruments

Introduction

Wataru Sagawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of writing instruments, particularly with his innovative designs that enhance functionality and user experience. His work reflects a commitment to quality and commercial viability.

Latest Patents

Wataru Sagawa holds a patent for a unique writing instrument that prevents condensation from occurring in the cap. This invention ensures high writing quality and commercial value. The writing instrument features a barrel containing aqueous ink, a pen tip capable of discharging the ink, and a removable cap. The aqueous ink used in this instrument has a vapor pressure of 10.3 to 12.3 kPa at 50° C, which is crucial for maintaining its performance.

Career Highlights

Sagawa is associated with Mitsubishi Pencil Company, Limited, where he has been instrumental in developing innovative writing solutions. His dedication to improving writing instruments has positioned him as a key figure in the industry.

Collaborations

Wataru Sagawa has collaborated with talented coworkers such as Toshimi Kamitani and Chihiro Mochizuki. Their combined efforts have contributed to the advancement of writing instrument technology.

Conclusion

Wataru Sagawa's innovative approach to writing instruments exemplifies the intersection of functionality and quality. His patent reflects a significant advancement in the field, showcasing his expertise and commitment to excellence.

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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