Kanagawa, Japan

Duplo Corporation


USPTO Granted Patents = 10

% Expired Patents = 20.0


Trademarks = 3

Forward Citations = 37

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19 inventors (with patents filed for the assignee):

goldMedal Shuhei Yamamoto (5 out of 89 patents)

silverMedal Yutaka Oki (1 out of 18 patents)

bronzeMedal Kazuhiro Tanaka (1 out of 4 patents)

4.  Tomohiko Niwa (1 out of 1 patent)

5.  Kazuki Imai (1 out of 1 patent)

6.  Masatoshi Takahashi (1 out of 101 patents)

7.  Shinichi Iwakiri (1 out of 1 patent)

8.  Yuichi Misawa (1 out of 1 patent)

9.  Yutaka Iijima (1 out of 1 patent)

10.  Hideo Tanaka (1 out of 1 patent)

11.  Tomio Honma (1 out of 1 patent)

12.  Toshio Miki (1 out of 1 patent)

13.  Yoshiyuki Ishikura (1 out of 1 patent)

14.  Masato Takeda (1 out of 1 patent)

15.  Kazutaka Tsunoda (1 out of 1 patent)


10 patents:

Company Overview
Duplo Corporation, headquartered in Kanagawa, Japan, specializes in advanced printing and finishing solutions. The company is known for its innovative technologies that enhance productivity and efficiency in the printing industry. Duplo develops a range of products, including digital duplicators, booklet makers, and cutting systems, catering to various sectors such as commercial printing, education, and in-house printing operations. With a focus on automation and quality, Duplo aims to support businesses in achieving their printing goals effectively.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Duplo Corporation USPTO Patent Assignee Logo
10 Patents

#152 in Kanagawa

#4,400 in Japan

#55,986 in the World

Kanagawa, JP
Kanagawa, Japan
Forward Citations = 37

19 inventors:

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Duplo Corporation. Retrieved from https://idiyas.com/company/duplo

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]
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