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For the Inventor, By the Inventor

Nagoya, Japan

Menicon Co., Ltd.


USPTO Granted Patents = 241

% Expired Patents = 16.6



Trademarks = 28

Forward Citations = 4,095

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236 inventors (with patents filed for the assignee):

goldMedal Kazuhiko Nakada (39 out of 40 patents)

silverMedal Ichiro Ando (21 out of 22 patents)

bronzeMedal Toshio Yamazaki (19 out of 34 patents)

4.  Shoji Ichinohe (17 out of 76 patents)

5.  Osamu Mori (15 out of 16 patents)

6.  Kazuharu Niwa (15 out of 22 patents)

7.  Hiroaki Suzuki (13 out of 16 patents)

8.  Tsuyoshi Watanabe (13 out of 19 patents)

9.  Akihisa Sugiyama (13 out of 13 patents)

10.  Hiroyuki Oyama (13 out of 13 patents)

11.  Tatsuya Ojio (12 out of 12 patents)

12.  Eri Ito (11 out of 11 patents)

13.  Atsushi Kobayashi (11 out of 41 patents)

14.  Kazuya Miyamura (11 out of 11 patents)

15.  Tadashi Sawano (11 out of 11 patents)


Core Competencies:
Contact Lens
Ophthalmic Lens
Disinfection System
Multifocal Lens
Polymer Material
Intraocular Lens
Hydrophilicity
Self-Assembling Peptide
Cosmetic Composition
Optometric Self-Examination
Contact Lens Case
Myopia Progression

241 patents:

1. 12209154 - Polymer material (2025-01-28),
2. 12157783 - Selectively wettable and oxygen-permeable lenses (2024-12-03),
3. 12064237 - Determination system, computing device, determination method, and program (2024-08-20),
4. 12042567 - Disinfection system of contact lens (2024-07-23),
5. 12029823 - Ocular device case and refill container used for the ocular device case (2024-07-09),
6. 11638425 - Agent for inducing stress tolerance in plants (2023-05-02),
7. 11578158 - Material for intraocular lens (2023-02-14),
8. 11540603 - Contact lens case (2023-01-03),
9. 11472841 - Immunogenic composition (2022-10-18),
10. 11331404 - Disinfection system of contact lens (2022-05-17),
11. 11278489 - Cosmetic composition for nails, method of using same, and cosmetic resin for nails (2022-03-22),
12. 11181753 - Contact lens package and method for producing the same (2021-11-23),
13. 11009723 - Ophthalmic diffractive multi-focal lens and method for manufacturing ophthalmic diffractive multi-focal lens (2021-05-18),
14. 10821136 - Bone formation promoter (2020-11-03),
15. D899081 - Contact lens case (2020-10-20),
Company Overview
Menicon Co., Ltd., headquartered in Nagoya, Japan, is a leading innovator in contact lens technology. The company specializes in the development and manufacturing of a wide range of ophthalmic products, including contact lenses, multifocal lenses, and intraocular lenses. Menicon is also recognized for its advancements in disinfection systems and polymer materials, focusing on enhancing hydrophilicity and utilizing self-assembling peptides to improve lens performance and comfort. Their commitment to research and development positions them at the forefront of the optical industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Menicon Co., Ltd. USPTO Patent Assignee Logo
241 Patents

#9 in Nagoya

#624 in Japan

#3,580 in the World

Nagoya, JP
Nagoya, Japan

Menicon Co., Ltd.

Forward Citations = 4,095

236 inventors:

goldMedal Kazuhiko Nakada (39 out of 40 patents)

silverMedal Ichiro Ando (21 out of 22 patents)

bronzeMedal Toshio Yamazaki (19 out of 34 patents)

4.  Shoji Ichinohe (17 out of 76 patents)

5.  Osamu Mori (15 out of 16 patents)

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