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Copyer Co., Ltd.

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USPTO Granted Patents = 41

% Expired Patents = 19.5

Forward Citations = 344

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52 inventors (with patents filed for the assignee):

Shozo Ishikawa (7 out of 38 patents)

Naoki Kiyohara (6 out of 15 patents)

Kazuhiro Murakami (6 out of 8 patents)

4. Ryoma Suzuki (6 out of 8 patents)

5. Iwao Kawamura (6 out of 17 patents)

6. Kensuke Izuma (6 out of 9 patents)

7. Kiyokazu Namekata (6 out of 7 patents)

8. Kazuharu Katagiri (6 out of 126 patents)

9. Makoto Kitahara (6 out of 42 patents)

10. Shigeto Ohta (5 out of 6 patents)

11. Kazuhiro Nishimura (4 out of 18 patents)

12. Katsunori Watanabe (4 out of 15 patents)

13. Yuichi Sugiyama (3 out of 37 patents)

14. Yuji Matsuda (3 out of 32 patents)

15. Yousuke Tatsumi (3 out of 4 patents)

Core Competencies:

Image Processing

Ink-Jet Devices

Electrophotographic Media

Printing Data Transfer

Media Detection

Copying Machine

Image Forming Apparatus

Fixation Unit

Ink Supply Device

Scanning Type

Rolled Paper Supply

Electrostatic Recording

41 patents: Sort by Forward Citations

1. 6582046 - Method and device for image processing (2003-06-24),

2. 6568790 - Printer (2003-05-27),

3. 6530639 - Image forming device (2003-03-11),

4. 6519441 - Roll paper unit having paper path switching member and image forming apparatus employing the same (2003-02-11),

5. 6488424 - Image forming device (2002-12-03),

6. 6478491 - Image forming apparatus (2002-11-12),

7. 6477350 - Fixation unit having contact and pressure rollers (2002-11-05),

8. 6471344 - Ink supply device and ink filling method (2002-10-29),

9. 6470160 - Image forming apparatus with manual sheet feeder tray or discharged-sheet tray (2002-10-22),

10. 6460983 - Ink supply device and ink filling method (2002-10-08),

11. 6409322 - Ink supply apparatus and ink filling method (2002-06-25),

12. 6409301 - Ink-jet image forming device (2002-06-25),

13. 6371668 - Printing data transfer method and printer (2002-04-16),

14. 6348697 - Media detection method and device (2002-02-19),

15. 6312071 - Scanning type image formation apparatus (2001-11-06),

Company Overview

Copyer Co., Ltd., based in Tokyo, specializes in advanced imaging technologies and solutions. The company focuses on the development and manufacturing of image processing systems, ink supply devices, and image forming apparatuses. Their expertise extends to electrophotographic media and ink-jet image formation, catering to the evolving needs of the copying machine industry. With a commitment to innovation, Copyer enhances media detection and fixation unit technologies, positioning itself as a key player in the imaging sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

41 Patents

#908 in Tokyo

#1,944 in Japan

#16,731 in the World

Copyer Co., Ltd.

Forward Citations = 344

52 inventors:

Shozo Ishikawa (7 out of 38 patents)

Naoki Kiyohara (6 out of 15 patents)

Kazuhiro Murakami (6 out of 8 patents)

4. Ryoma Suzuki (6 out of 8 patents)

5. Iwao Kawamura (6 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Copyer Co., Ltd.. Retrieved from https://idiyas.com/company/copyer-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]

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