Next21 K.k.

Calculating rank

USPTO Granted Patents = 7

% Expired Patents = 14.3

EPO Patents = 3

Forward Citations = 1,516

Loading Chart...

9 inventors (with patents filed for the assignee):

Shigeki Suzuki (7 out of 24 patents)

Nobuo Sasaki (4 out of 44 patents)

Yuichi Tei (4 out of 8 patents)

4. Ryosuke Echigo (1 out of 1 patent)

5. Touru Hakukawa (1 out of 1 patent)

6. Koutaro Shimizu (1 out of 1 patent)

7. Shinya Wasada (1 out of 3 patents)

8. Hironobu Okamoto (1 out of 1 patent)

9. Shinro Takai (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 9452180 - NSAIDs-induced gastrointestinal mucosal disorder alleviator and manufacturing method thereof (2016-09-27),

2. 8957173 - Resin product for medical use and respiration-assisting tube (2015-02-17),

3. 8906111 - Artificial bone material having controlled calcium ion elution (2014-12-09),

4. 8709468 - Closed cell culture system (2014-04-29),

5. 8283337 - Therapeutic or prophylactic agent for vasoconstriction (2012-10-09),

6. 8105517 - Figure-forming composition, method for forming three-dimensional figures and three-dimensional structures by using the same (2012-01-31),

7. 7427607 - Drug administration method (2008-09-23),

Company Overview

Next21 K.k. is a technology company based in Tokyo, Japan. We specialize in providing innovative solutions for businesses, with a focus on software development, digital marketing, and IT consulting. Our team of experts is dedicated to helping clients achieve their goals and stay ahead in today's fast-paced digital landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#2,290 in Tokyo

#5,462 in Japan

Tokyo, Japan

Next21 K.k.

Forward Citations = 1,516

9 inventors:

Shigeki Suzuki (7 out of 24 patents)

Nobuo Sasaki (4 out of 44 patents)

Yuichi Tei (4 out of 8 patents)

4. Ryosuke Echigo (1 out of 1 patent)

5. Touru Hakukawa (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Next21 K.k.. Retrieved from https://idiyas.com/company/next21-k-k

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]

3 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]