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Ricoh Company, Ltd.

USPTO Granted Patents = 28,559

CIPO Patents = 108

EPO Patents = 4,029

Trademarks = 81

Forward Citations = 229,496

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10,053 inventors (with patents filed for the assignee):

Tetsuro Motoyama (250 out of 264 patents)

Hiroshi Yoshinaga (223 out of 225 patents)

Jonathan J Hull (208 out of 231 patents)

4. Kenji Ishii (168 out of 253 patents)

5. Masaomi Sasaki (167 out of 170 patents)

6. Toshihiko Shimokawa (142 out of 147 patents)

7. Jamey Graham (142 out of 145 patents)

8. Yoshinaga Kato (132 out of 132 patents)

9. Takamasa Hase (131 out of 132 patents)

10. Takahiro Asai (129 out of 219 patents)

11. Tomoyuki Shimada (129 out of 132 patents)

12. Takahiro Imada (128 out of 129 patents)

13. Naoki Iwaya (125 out of 126 patents)

14. Kurt W Piersol (124 out of 161 patents)

15. Shunichi Sato (123 out of 124 patents)

Core Competencies:

Image Forming Apparatus

3D Printing

Liquid Discharge Apparatus

Information Processing System

Sheet Processing Apparatus

Active Energy Ray Curing

Dyeing Apparatus

Communication Terminal

Heating Device

Printhead Maintenance

Sensor Device

Distance Measurement Device

28,559 patents: Sort by Forward Citations

1. 12499349 - Validation of autoencoders that perform timestamp compression for printing system data (2025-12-16),

2. 12498665 - Attachment structure, electronic device, and image forming apparatus (2025-12-16),

3. 12498664 - Intermediate transfer unit and image forming apparatus (2025-12-16),

4. 12498659 - Heating device, frame device, and image forming apparatus (2025-12-16),

5. 12498656 - Fixing device and image forming apparatus (2025-12-16),

6. 12498652 - Developing device, process cartridge, and image forming apparatus (2025-12-16),

7. 12498467 - Distance-measuring apparatus and distance-measuring method (2025-12-16),

8. 12497530 - Active energy ray polymerization initiator, active energy ray curing composition, active energy ray curing ink, aqueous active energy ray curing ink, container, image forming device, image forming method, and method of manufacturing active energy ray polymerization initiator (2025-12-16),

9. 12497527 - Ink, image forming apparatus, and image forming method (2025-12-16),

10. 12496841 - Liquid discharge apparatus (2025-12-16),

11. 12496831 - Liquid discharge apparatus (2025-12-16),

12. 12496830 - Head module and liquid discharge apparatus (2025-12-16),

13. 12496638 - Method of fabricating three-dimensional object and apparatus for fabricating three-dimensional object (2025-12-16),

14. 12493282 - Information processing apparatus, flow generation method, and computer program product (2025-12-09),

15. 12491715 - Liquid discharge head, liquid discharge head module, and liquid discharge apparatus (2025-12-09),

Ricoh Company, Ltd. is a global provider of technology-based business solutions. With a wide portfolio of innovative products and services, Ricoh helps businesses streamline document management, optimize workplace efficiency, and improve overall productivity. Their solutions range from multifunction printers and production printing systems to IT services, document management software, and consulting services. Ricoh is committed to sustainability and aims to empower digital workplaces while minimizing environmental impact.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

28,559 Patents

#8 in Tokyo

#9 in Japan

#25 in the World

Ricoh Company, Ltd.

Forward Citations = 229,496

10,053 inventors:

Tetsuro Motoyama (250 out of 264 patents)

Hiroshi Yoshinaga (223 out of 225 patents)

Jonathan J Hull (208 out of 231 patents)

4. Kenji Ishii (168 out of 253 patents)

5. Masaomi Sasaki (167 out of 170 patents)

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