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The Doshisha

USPTO Granted Patents = 86

% Expired Patents = 51.2

CIPO Patents = 5

EPO Patents = 39

Forward Citations = 127

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187 inventors (with patents filed for the assignee):

Noriko Koizumi (14 out of 23 patents)

Naoki Okumura (14 out of 18 patents)

Shigeru Kinoshita (8 out of 27 patents)

4. Yoshiaki Watanabe (8 out of 8 patents)

5. Shinzo Yoshikado (7 out of 7 patents)

6. Shinichi Sakamoto (6 out of 7 patents)

7. Ken Hirota (4 out of 4 patents)

8. Naoto Ishii (4 out of 61 patents)

9. Kazushi Muraoka (4 out of 70 patents)

10. Yosuke Kishikawa (4 out of 65 patents)

11. Takumi Takahashi (4 out of 8 patents)

12. Hiroshi Yamaguchi (4 out of 103 patents)

13. Shinsuke Ibi (4 out of 18 patents)

14. Akiyoshi Yamauchi (4 out of 62 patents)

15. Tomohiro Isogai (4 out of 19 patents)

Core Competencies:

Corneal Endothelium

mTOR Inhibitor

Therapeutic Drug

Ocular Disease

Diagnostic Device

Cell Therapy

Electrochemical Measurement

Image Compression

Thermoacoustic Device

Magnetic Fluid Drive

Semiconductor Device

86 patents: Sort by Forward Citations

1. 12644193 - Energy utilization system and method for producing carbon-containing material (2026-06-02),

2. 12643838 - Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition (2026-06-02),

3. 12601068 - Method for manufacturing carbon monoxide or organic compound (2026-04-14),

4. 12416087 - Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition (2025-09-16),

5. 12343356 - mTOR-inhibitor-containing medicine for treating or preventing ophthalmic symptoms, disorders, or diseases, and application thereof (2025-07-01),

6. 12276641 - Method for predicting springback amount and method for bending deformed reinforcing bar (2025-04-14),

7. 11938657 - Multi-screw kneader and method for producing nano-composite using said multi-screw kneader, and disk-shaped segment used for said kneader and said method (2024-03-26),

8. 11918630 - Treatment of retina and nerve using laminin (2024-03-05),

9. 11857544 - Composition or method including (t)ew-7197 for treating or preventing corneal endothelial diseases (2024-01-02),

10. 11777585 - Wireless receiving apparatus and method thereof (2023-10-03),

11. 11777106 - Oxygen catalyst, electrode using the same, and electrochemical measurement method (2023-10-03),

12. 11730722 - Corneal endothelium ECM therapeutic medicaments (2023-08-22),

13. 11652204 - Metal negative electrode, method for fabricating the same and secondary battery including the same (2023-05-16),

14. 11633477 - Treatment of cornea using laminin (2023-04-25),

15. 11627485 - Computer system and method therefor (2023-04-11),

Company Overview

The Doshisha, based in Kyoto, Japan, is a prominent institution engaged in advanced research and development in the field of ophthalmic treatments. The organization focuses on innovative solutions for ocular diseases, emphasizing technologies such as mTOR inhibitors, therapeutic drugs, and cell therapies. Additionally, Doshisha is involved in the development of diagnostic devices and electrochemical measurement techniques, contributing significantly to the understanding and treatment of corneal endothelium-related conditions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

86 Patents

#47 in Kyoto 615-0031

#1,240 in Japan

#8,868 in the World

The Doshisha

Forward Citations = 127

187 inventors:

Noriko Koizumi (14 out of 23 patents)

Naoki Okumura (14 out of 18 patents)

Shigeru Kinoshita (8 out of 27 patents)

4. Yoshiaki Watanabe (8 out of 8 patents)

5. Shinzo Yoshikado (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Doshisha. Retrieved from https://idiyas.com/company/doshisha

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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