For the Inventor, By the Inventor

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San Jose, CA, United States of America

Ricoh Systems, Inc.

USPTO Granted Patents = 21

Forward Citations = 146

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16 inventors (with patents filed for the assignee):

Edward F Mayer (7 out of 25 patents)

Carl P Anderson (5 out of 9 patents)

Marco Padalino (4 out of 5 patents)

4. Victor B Van Blerk (2 out of 12 patents)

5. Herbert K Wurster (2 out of 3 patents)

6. Mark A Culpepper (2 out of 3 patents)

7. William J Murphy (1 out of 3 patents)

8. Donald F Pfeuffer (1 out of 4 patents)

9. Tomio Kubota (1 out of 1 patent)

10. Arthur C Lutus (1 out of 2 patents)

11. Steven R Ungemach (1 out of 1 patent)

12. Sanjiv Arora (1 out of 2 patents)

13. James G Larsen (1 out of 1 patent)

14. Elden R Morrison (1 out of 1 patent)

15. Alan L Koelling (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 4809016 - Inkjet interlace printing with inclined printhead (1989-02-28),

2. 4786303 - Method of fabricating a glass nozzle array for an inkjet printer (1988-11-22),

3. 4723150 - Dust control method and apparatus (1988-02-02),

4. 4710442 - Gradient layer panchromatic photoreceptor (1987-12-01),

5. 4703923 - Recirculating automatic document feeder (1987-11-03),

6. 4703330 - Color ink jet drop generator using a solid acoustic cavity (1987-10-27),

7. 4695848 - Inkjet printing system (1987-09-22),

8. 4668964 - Stimulator for inkjet printer (1987-05-26),

9. 4668071 - Character generator using cathode ray tube activated liquid crystal (1987-05-26),

10. 4639128 - Automatic platen document stop for electrophotographic copying apparatus (1987-01-27),

11. 4627702 - Wide belt tracking method and apparatus (1986-12-09),

12. 4619450 - Copying apparatus with automatic bottom feeder (1986-10-28),

13. 4615580 - Fiber optic high speed pulse scanner (1986-10-07),

14. 4600290 - Magnetic brush/stationary electrode development system (1986-07-15),

15. 4595933 - Ink liquid supply apparatus (1986-06-17),

Company Overview

Ricoh Systems, Inc., based in San Jose, CA, specializes in innovative imaging and printing solutions, alongside advanced document management services. The company focuses on enhancing productivity and efficiency for businesses through its comprehensive portfolio, which includes cloud-based applications and IT services. Ricoh is committed to sustainability and digital transformation, leveraging cutting-edge technology to support various industries in optimizing their workflows and improving operational performance.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

21 Patents

#341 in San Jose, CA

#3,764 in California

#15,712 in US

#30,001 in the World

San Jose, CA, United States of America

Ricoh Systems, Inc.

Forward Citations = 146

16 inventors:

Edward F Mayer (7 out of 25 patents)

Carl P Anderson (5 out of 9 patents)

Marco Padalino (4 out of 5 patents)

4. Victor B Van Blerk (2 out of 12 patents)

5. Herbert K Wurster (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ricoh Systems, Inc.. Retrieved from https://idiyas.com/company/ricoh-systems

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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