% Expired Patents = 22.2

Trademarks = 1

Forward Citations = 57

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6 inventors (with patents filed for the assignee):

Yijun Huang (7 out of 7 patents)

Tetsuyoshi Royama (7 out of 7 patents)

Alexandre Kotchkin (7 out of 7 patents)

4. Chris Sramek (1 out of 3 patents)

5. Edward R Mourar (1 out of 3 patents)

6. James J O'Brien (1 out of 2 patents)

9 patents: Sort by Forward Citations

1. 10758415 - Method and apparatus for using multi-clad fiber for spot size selection (2020-09-01),

2. 8567951 - Characterization of retinal parameters by circular profile analysis (2013-10-29),

3. 8401246 - Mapping of retinal parameters from combined fundus image and three-dimensional optical coherence tomography (2013-03-19),

4. 8256897 - Circular profile mapping and display of retinal parameters (2012-09-04),

5. 8134554 - Method and apparatus for spatially mapping three-dimensional optical coherence tomography data with two-dimensional images (2012-03-13),

6. 8081808 - Retinal thickness measurement by combined fundus image and three-dimensional optical coherence tomography (2011-12-20),

7. 8025407 - Characterization of retinal parameters by circular profile analysis (2011-09-27),

8. 7934832 - Characterization of the retinal nerve fiber layer (2011-05-03),

9. 6575575 - Moveable power operated instrument stand (2003-06-10),

Company Overview

Topcon Medical Systems is a leading manufacturer and distributor of diagnostic equipment for the ophthalmic industry. With a focus on innovation and precision, Topcon offers a wide range of products including imaging systems, autorefractors, and tonometers. Their cutting-edge technology and commitment to quality have made them a trusted name in the field of ophthalmology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#8 in Oakland, NJ

#1,222 in New Jersey

#32,588 in US

Oakland, NJ, United States of America

Topcon Medical Systems, Inc.

Forward Citations = 57

6 inventors:

Yijun Huang (7 out of 7 patents)

Tetsuyoshi Royama (7 out of 7 patents)

Alexandre Kotchkin (7 out of 7 patents)

4. Chris Sramek (1 out of 3 patents)

5. Edward R Mourar (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Topcon Medical Systems, Inc.. Retrieved from https://idiyas.com/company/topcon-medical-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]