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Ehime University

USPTO Granted Patents = 45

% Expired Patents = 51.1

EPO Patents = 9

Forward Citations = 60

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109 inventors (with patents filed for the assignee):

Shinfuku Nomura (7 out of 8 patents)

Takafumi Tsuboi (6 out of 6 patents)

Hiromichi Toyota (6 out of 7 patents)

4. Eun-Taek Han (5 out of 5 patents)

5. Hiromi Uchimura (4 out of 4 patents)

6. Toshihisa Shimo (3 out of 27 patents)

7. Shinobu Mukasa (3 out of 3 patents)

8. Taizou Kamishita (2 out of 8 patents)

9. Hiromasa Miura (2 out of 3 patents)

10. Kazunori Hino (2 out of 3 patents)

11. Hitotoshi Murase (2 out of 24 patents)

12. Teruhito Kido (2 out of 2 patents)

13. Yoshiaki Hattori (2 out of 2 patents)

14. Tatsuya Sawasaki (2 out of 8 patents)

15. Mayumi Matsunaga (2 out of 2 patents)

Core Competencies:

Vaccine

Image Processing

Nanometer-Size Particles

Hepatitis B

Optical Analysis

Antibody

Artificial Joint

Functional Material

Plasma Technology

Protein Analysis

Magnetic Memory

Plant Health

45 patents: Sort by Forward Citations

1. 12241061 - CAR library and scFv manufacturing method (2025-03-04),

2. 12140542 - Optical analysis chip (2024-11-12),

3. 12070497 - Hepatitis B vaccine transnasal administration system (2024-08-27),

4. 11898155 - Method for introducing molecule and composition containing inhibitor (2024-02-13),

5. 11884754 - Sulfonated pulp fibers, derivative pulp, sulfonated fine cellulose fibers, method for producing sulfonated fine cellulose fibers, and method for producing sulfonated pulp fibers (2024-01-30),

6. 11871678 - Magnetic memory device and operation method thereof (2024-01-09),

7. 11813106 - Image processing device, and image processing method utilizing time-series computed tomography (CT) images (2023-11-14),

8. 11517897 - Functional material for testing liquid sample (2022-12-06),

9. 11491219 - Nasal hepatitis B vaccine composition and method for producing same (2022-11-08),

10. 11273212 - Malaria vaccine (2022-03-15),

11. 11054398 - Ultrasonic inspection method, ultrasonic inspection device, and computer-readable storage medium (2021-07-06),

12. 11053313 - Anti-CLDN-5 antibody, and drug containing said antibody (2021-07-06),

13. 10687700 - Visual field measuring method, visual field measuring apparatus, and optotype (2020-06-23),

14. 10639162 - Artificial knee joint (2020-05-05),

15. 10583434 - Functional material, method for producing functional material, and functional liquid (2020-03-10),

Company Overview

Ehime University, located in Japan, is a prominent institution engaged in advanced research and development across various technology domains. The university specializes in innovative fields such as CAR libraries, optical analysis chips, and medical advancements including hepatitis B vaccines and artificial knee joints. Additionally, it explores cutting-edge technologies in magnetic memory devices, image processing, and nanometer-size particles, contributing significantly to both academic and practical applications in science and engineering.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

45 Patents

#5 in Ehime

#1,827 in Japan

#15,419 in the World

Ehime University

Forward Citations = 60

109 inventors:

Shinfuku Nomura (7 out of 8 patents)

Takafumi Tsuboi (6 out of 6 patents)

Hiromichi Toyota (6 out of 7 patents)

4. Eun-Taek Han (5 out of 5 patents)

5. Hiromi Uchimura (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ehime University. Retrieved from https://idiyas.com/company/ehime-university

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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