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For the Inventor, By the Inventor

Tokyo-to, Japan

Topcon Corporation


USPTO Granted Patents = 526


Trademarks = 24

Forward Citations = 1,123

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314 inventors (with patents filed for the assignee):

goldMedal Kaoru Kumagai (52 out of 152 patents)

silverMedal Fumio Ohtomo (51 out of 250 patents)

bronzeMedal Nobuyuki Nishita (48 out of 63 patents)

4.  You Sasaki (29 out of 36 patents)

5.  Nobuo Kochi (28 out of 52 patents)

6.  Yasufumi Fukuma (27 out of 115 patents)

7.  Tadayuki Ito (26 out of 52 patents)

8.  Tatsuo Yamaguchi (24 out of 63 patents)

9.  Tetsuji Anai (23 out of 42 patents)

10.  Takeshi Kikuchi (21 out of 37 patents)

11.  Zhenguo Wang (20 out of 31 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.  Kinpui Chan (14 out of 37 patents)


Core Competencies:
Ophthalmic Imaging
Slit Lamp Microscope
Non-Destructive Inspection
3D Optical Coherence Tomography
Surveying Instruments
Photocoagulation Apparatus
Ophthalmologic Devices
Error Prediction
Laser Scanning Control
Eye Testing Equipment
Medical Diagnostic Apparatus
Ophthalmic Data Processing

526 patents:

1. 12510896 - Marking apparatus, control method for marking apparatus, and storage medium (2025-12-30),
2. 12498221 - System, device, and control method (2025-12-16),
3. 12478252 - Slit lamp microscope, ophthalmic system, method of controlling slit lamp microscope, and recording medium (2025-11-25),
4. 12470685 - Ophthalmic information processing apparatus, ophthalmic apparatus, ophthalmic information processing method, and recording medium (2025-11-11),
5. 12468135 - Slit lamp microscope (2025-11-11),
6. 12467889 - Non-destructive inspection device and non- destructive inspection system (2025-11-11),
7. 12462343 - Medical diagnostic apparatus and method for evaluation of pathological conditions using 3D optical coherence tomography data and images (2025-11-04),
8. 12458228 - Ophthalmologic apparatus for determining whether accommodation intervention by subject eye has occurred (2025-11-04),
9. 12455164 - Surveying instrument, surveying method and surveying program (2025-10-28),
10. 12449540 - Method for detecting plant growth amount, plant sensor, and fertilizing apparatus (2025-10-21),
11. 12446771 - 2D multi-layer thickness measurement (2025-10-21),
12. 12435978 - Surveying instrument (2025-10-07),
13. 12430729 - Ophthalmic apparatus, method of controlling the same, and recording medium (2025-09-30),
14. 12429589 - Hammering test system (2025-09-30),
15. 12427064 - Photocoagulation apparatus, eye fundus observation apparatus, method of controlling photocoagulation apparatus, method of controlling eye fundus observation apparatus, and recording medium (2025-09-30),
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.

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USPTO Data Jan 1 1976 - Dec 30 2025

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526 Patents

#3 in Tokyo-to

#360 in Japan

#1,804 in the World

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Tokyo-to, Japan

Topcon Corporation

Forward Citations = 1,123

314 inventors:

goldMedal Kaoru Kumagai (52 out of 152 patents)

silverMedal Fumio Ohtomo (51 out of 250 patents)

bronzeMedal Nobuyuki Nishita (48 out of 63 patents)

4.  You Sasaki (29 out of 36 patents)

5.  Nobuo Kochi (28 out of 52 patents)

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