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Nidek Co., Ltd.

USPTO Granted Patents = 833

% Expired Patents = 31.8

EPO Patents = 279

Trademarks = 3

Forward Citations = 7,327

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371 inventors (with patents filed for the assignee):

Ryoji Shibata (54 out of 54 patents)

Masaaki Hanebuchi (46 out of 46 patents)

Naoki Isogai (40 out of 40 patents)

4. Toshiaki Mizuno (38 out of 39 patents)

5. Masanao Fujieda (35 out of 35 patents)

6. Yoshinobu Hosoi (28 out of 28 patents)

7. Hirokatsu Obayashi (27 out of 27 patents)

8. Norimasa Satake (26 out of 26 patents)

9. Kyoji Takeichi (26 out of 27 patents)

10. Toshifumi Sumiya (25 out of 27 patents)

11. Akihiro Hayashi (25 out of 26 patents)

12. Motoshi Tanaka (24 out of 24 patents)

13. Michihiro Takii (23 out of 23 patents)

14. Yukihiro Higuchi (23 out of 23 patents)

15. Minoru Inuzuka (23 out of 24 patents)

Core Competencies:

OCT Device

Ophthalmic Image Processing

Subjective Optometry

Eyeglass Lens Measurement

Fundus Imaging

Ophthalmic Apparatus

Dyeing System

Ultrasonic Tonometer

Optometry System

Medical Image Processing

833 patents: Sort by Forward Citations

1. 12507884 - Ophthalmic apparatus (2025-12-30),

2. 12490898 - Ophthalmic system (2025-12-09),

3. 12440097 - OCT device (2025-10-14),

4. 12435467 - Dyeing system (2025-10-07),

5. 12407919 - Ophthalmology information processing method, control method, and ophthalmology information processing system (2025-09-02),

6. 12366033 - Dyeing data management method and dyeing system (2025-07-22),

7. 12352651 - Eyeglasses lens measurement device and non-transitory computer-readable storage medium (2025-07-08),

8. 12343082 - Ophthalmologic measurement apparatus, ophthalmologic measurement system, and ophthalmologic measurement program (2025-07-01),

9. 12343079 - Non-transitory computer-readable storage medium and subjective optometry system (2025-07-01),

10. 12304836 - Grinding water treatment device for eyeglasses lens processing (2025-05-20),

11. 12293518 - Ophthalmic image processing device, OCT device, and non-transitory computer-readable storage medium (2025-05-06),

12. 12293512 - Ophthalmic image processing device and ophthalmic image processing method (2025-05-06),

13. 12274504 - Non-contact ultrasonic ophthalmotonometer (2025-04-14),

14. 12232813 - Ophthalmic image processing device, ophthalmic image processing program, and ophthalmic image processing system (2025-02-25),

15. 12227018 - Dye-deposited base body manufacturing apparatus and dyeing system (2025-02-18),

Company Overview

Nidek Co., Ltd., headquartered in Aichi, Japan, specializes in the development and manufacturing of advanced ophthalmic technology. The company focuses on a range of products including optical coherence tomography (OCT) devices, ophthalmic image processing systems, and equipment for subjective optometry. Nidek is recognized for its innovations in eyeglass lens measurement, fundus imaging, and various ophthalmic apparatuses, contributing significantly to the field of eye care and vision health.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

833 Patents

#4 in Aichi

#259 in Japan

#1,212 in the World

Nidek Co., Ltd.

Forward Citations = 7,327

371 inventors:

Ryoji Shibata (54 out of 54 patents)

Masaaki Hanebuchi (46 out of 46 patents)

Naoki Isogai (40 out of 40 patents)

4. Toshiaki Mizuno (38 out of 39 patents)

5. Masanao Fujieda (35 out of 35 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nidek Co., Ltd.. Retrieved from https://idiyas.com/company/nidek-company

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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