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Topcon Corporation

USPTO Granted Patents = 576

% Expired Patents = 5.2

EPO Patents = 245

Trademarks = 22

Forward Citations = 1,174

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341 inventors (with patents filed for the assignee):

Kaoru Kumagai (52 out of 152 patents)

Nobuyuki Nishita (52 out of 67 patents)

Fumio Ohtomo (51 out of 250 patents)

4. Yasufumi Fukuma (32 out of 120 patents)

5. You Sasaki (30 out of 37 patents)

6. Nobuo Kochi (28 out of 52 patents)

7. Tadayuki Ito (26 out of 52 patents)

8. Tatsuo Yamaguchi (25 out of 64 patents)

9. Tetsuji Anai (23 out of 42 patents)

10. Takeshi Kikuchi (23 out of 40 patents)

11. Zhenguo Wang (22 out of 33 patents)

12. Hitoshi Otani (20 out of 75 patents)

13. Satoshi Yanobe (19 out of 25 patents)

14. Ryoichi Hirose (18 out of 18 patents)

15. Hisashi Tsukada (17 out of 50 patents)

Core Competencies:

Ophthalmic Apparatus

Surveying Instrument

3D Optical Coherence Tomography

Image Processing

Medical Diagnostics

Fundus Observation

Slit Lamp Microscope

Optical Coherence Tomography

Measurement Device

Non-Destructive Inspection

Anterior Segment Analysis

Eye Testing Equipment

576 patents: Sort by Forward Citations

1. D1145605 - Surveying target (2026-09-01),

2. 12724340 - Wide-angle camera device and survey system (2026-09-01),

3. 12716722 - Survey system (2026-08-25),

4. 12716721 - Information processing device, information processing device control method, and storage medium (2026-08-25),

5. 12714303 - Myopia progression analysis device, myopia progression analysis system, myopia progression analysis method, and myopia progression analysis program (2026-08-25),

6. 12711753 - AUTOMATICALLY IDENTIFYING REGIONS OF INTEREST OF AN OBJECT FROM HORIZONTAL IMAGES USING A MACHINE LEARNING GUIDED IMAGING SYSTEM (2026-08-18),

7. 12702292 - Ophthalmologic apparatus (2026-08-11),

8. 12700167 - Slit lamp microscope, ophthalmic information processing apparatus, ophthalmic system, method of controlling slit lamp microscope, and recording medium (2026-08-04),

9. 12690766 - Ophthalmologic apparatus (2026-07-28),

10. 12690765 - Ophthalmologic apparatus (2026-07-28),

11. 12685436 - Ophthalmic apparatus, method of controlling ophthalmic apparatus, and recording medium (2026-07-21),

12. 12683022 - Medical system (2026-07-14),

13. 12678043 - Ophthalmic apparatus, method of controlling same, and recording medium (2026-07-14),

14. 12678042 - Ophthalmologic apparatus and method of examining eye to be examined (2026-07-14),

15. 12672776 - Ophthalmic observation apparatus, method of controlling the same, and recording medium (2026-07-07),

TOPCON Corporation is a leading global provider of optical measurement and healthcare solutions. Their mission is to contribute to the development and advancement of society by providing cutting-edge technology and solutions. With a wide range of products and services, TOPCON caters to various industries including agriculture, construction, healthcare, and surveying. They are committed to innovation, quality, and customer satisfaction.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Topcon Corporation

576 Patents

#169 in Tokyo

#346 in Japan

#1,695 in the World

Topcon Corporation

Forward Citations = 1,174

341 inventors:

Kaoru Kumagai (52 out of 152 patents)

Nobuyuki Nishita (52 out of 67 patents)

Fumio Ohtomo (51 out of 250 patents)

4. Yasufumi Fukuma (32 out of 120 patents)

5. You Sasaki (30 out of 37 patents)

Please report any incorrect information to [email protected]

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