The Pilot Ink Co., Ltd., based in Aichi, Japan, specializes in the development and manufacturing of innovative thermochromic inks. These inks change color in response to temperature variations, making them ideal for a variety of applications, including writing instruments and packaging. The company focuses on advanced technologies such as microcapsule pigments and water-based ink formulations, contributing to eco-friendly solutions in the ink industry. Pilot Ink is committed to enhancing user experience through unique color-memorizing functions and photochromic materials.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

175 Patents

#13 in Aichi

#773 in Japan

#4,753 in the World

Aichi, Japan

The Pilot Ink Co., Ltd.

Forward Citations = 2,689

123 inventors:

Yutaka Shibahashi (23 out of 25 patents)

Yoshiaki Ono (20 out of 21 patents)

Akio Nakashima (19 out of 19 patents)

4. Katsuyuki Fujita (18 out of 18 patents)

5. Kuniyuki Senga (15 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Pilot Ink Co., Ltd.. Retrieved from https://idiyas.com/company/pilot-ink-company

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

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]

2 patents (CIPO):

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]

46 patents (EPO):

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]