For the Inventor, By the Inventor

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Kanagawa, Japan

Duplo Corporation

USPTO Granted Patents = 10

% Expired Patents = 20.0

EPO Patents = 3

Trademarks = 3

Forward Citations = 37

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19 inventors (with patents filed for the assignee):

Shuhei Yamamoto (5 out of 89 patents)

Yutaka Oki (1 out of 18 patents)

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: Sort by Forward Citations

1. 12662347 - Transfer apparatus (2026-06-23),

2. RE48785 - Ink jet recorder (2021-10-25),

3. 10800182 - Printing system, information processing apparatus, inkjet printing apparatus, printing control method, and printing control program (2020-10-13),

4. 10589560 - Active energy ray curing inkjet ink, printed product, inkjet printing apparatus, and inkjet printing method (2020-03-17),

5. 9463652 - Ink jet recorder (2016-10-11),

6. 7740240 - Paper feeding apparatus for feeding sheets of paper (2010-06-22),

7. 7354233 - Bookbinding machine and prebinding apparatus (2008-04-08),

8. 5310171 - Collating device (1994-05-10),

9. 5301935 - Apparatus for inserting and sealing envelopes with temporary storage (1994-04-12),

10. 5048416 - Multi-color printing apparatus (1991-09-17),

Duplo Corporation is a leading manufacturer of digital printing and finishing equipment. With a history spanning over 60 years, Duplo is known for their innovative solutions that streamline print production processes. Their product lineup includes high-speed digital printers, collators, booklet makers, and more, catering to a wide range of printing needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Duplo Corporation

10 Patents

#151 in Kanagawa

#4,395 in Japan

#55,869 in the World

Kanagawa, Japan

Duplo Corporation

Forward Citations = 37

19 inventors:

Shuhei Yamamoto (5 out of 89 patents)

Yutaka Oki (1 out of 18 patents)

Kazuhiro Tanaka (1 out of 4 patents)

4. Tomohiko Niwa (1 out of 1 patent)

5. Kazuki Imai (1 out of 1 patent)

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