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Gradco Japan Ltd.

USPTO Granted Patents = 60

EPO Patents = 1

Forward Citations = 345

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46 inventors (with patents filed for the assignee):

Peter M Coombs (25 out of 29 patents)

Frederick J Lawrence (7 out of 23 patents)

Koichi Kamoi (7 out of 7 patents)

4. Kuniaki Kimura (6 out of 6 patents)

5. Kenji Umehara (6 out of 6 patents)

6. Masakazu Takeuchi (5 out of 5 patents)

7. Kenichi Watanabe (4 out of 47 patents)

8. Kiichiro Noguchi (4 out of 4 patents)

9. Klaus Thogersen (4 out of 7 patents)

10. Yumiko Kato (3 out of 8 patents)

11. Kazushige Masunari (3 out of 3 patents)

12. Seung-kyoon Noh (3 out of 7 patents)

13. James R Seay (3 out of 4 patents)

14. Bradford Billings (3 out of 4 patents)

15. Tomoaki Iwafune (3 out of 3 patents)

Core Competencies:

Paper Post-Processing

Bookbinding Apparatus

Sheet Processing

Automatic Stapling

High Speed Processing

Mailing Envelopes

Offset Printing

Sheet Feeding

Finishing Apparatus

Selective Sheet Delivery

Tray Configuration

In-Bin Stapling

60 patents: Sort by Forward Citations

1. 9725272 - Paper post-processing device (2017-08-08),

2. 9028190 - Bookbinding apparatus (2015-05-12),

3. 9022377 - Sheet processing apparatus (2015-05-05),

4. 8840099 - Binding apparatus (2014-09-23),

5. 8511679 - Sheet processing device (2013-08-20),

6. 8393607 - Sheet processing device (2013-03-12),

7. 8257006 - Bookbinding device (2012-09-04),

8. 8157493 - Book binding device (2012-04-17),

9. 7942087 - Sheet punching apparatus and method for controlling the same (2011-05-17),

10. 7866648 - Multiple stapling apparatus (2011-01-11),

11. 7766328 - Sheet feeding apparatus with buffer system (2010-08-03),

12. 7450881 - Finishing apparatus of image forming apparatus (2008-11-11),

13. 7104538 - Sheet post processing device (2006-09-12),

14. 6948224 - Automatic stapling method and stapler (2005-09-27),

15. 6746008 - SET FINISHING DEVICE HAVING A SINGLE MOTOR DRIVEN APPARATUS FOR POSITIONING THE SET FINISHING DEVICE IN A PLURALITY OF DIFFERENT FINISHING STATIONS AND MOVING THE SET FINISHING DEVICE INTO AND OUT OF FINISHING POSITION (2004-06-08),

GRADCO JAPAN LTD. is a leading manufacturer and exporter of high-quality earth-moving equipment. With over 20 years of experience in the industry, we have established ourselves as a reliable and trusted supplier both domestically and internationally. Our products include bulldozers, excavators, graders, and loaders, which are known for their durability, efficiency, and advanced technology. We pride ourselves on offering comprehensive solutions and exceptional customer service to meet the diverse needs of our clients. Visit our website to learn more about our range of products and gain insights into our company's commitment to excellence.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

60 Patents

#628 in Tokyo

#1,504 in Japan

#11,793 in the World

Gradco Japan Ltd.

Forward Citations = 345

46 inventors:

Peter M Coombs (25 out of 29 patents)

Frederick J Lawrence (7 out of 23 patents)

Koichi Kamoi (7 out of 7 patents)

4. Kuniaki Kimura (6 out of 6 patents)

5. Kenji Umehara (6 out of 6 patents)

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