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For the Inventor, By the Inventor

Okayama, Japan

Okayama University


USPTO Granted Patents = 138

% Expired Patents = 59.4



Forward Citations = 293

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328 inventors (with patents filed for the assignee):

goldMedal Keiji Tsukada (8 out of 45 patents)

silverMedal Daisuke Horikawa (7 out of 25 patents)

bronzeMedal Takashi Teranishi (7 out of 7 patents)

4.  Hiroki Kakuta (7 out of 7 patents)

5.  Hiromi Kumon (7 out of 15 patents)

6.  Yoshimasa Takeda (7 out of 7 patents)

7.  Kiyoshi Morita (7 out of 7 patents)

8.  Masakiyo Sakaguchi (6 out of 9 patents)

9.  Yasuyuki Nogami (6 out of 6 patents)

10.  Yoshitaka Morikawa (6 out of 7 patents)

11.  Jun Takada (5 out of 35 patents)

12.  Masami Watanabe (5 out of 8 patents)

13.  Makoto Nakanishi (5 out of 6 patents)

14.  Kazuomi Suzuki (5 out of 6 patents)

15.  Yuji Yamamoto (4 out of 21 patents)


Core Competencies:
Tumor Imaging Agents
Bioabsorbable Stent
Anti-Malignant Tumor Agent
Drug Delivery Systems
Laryngeal Mask
Neurodegenerative Diseases
Gene Expression
Infective Drug
Dental Diagnosis Device
Polyketide Synthesis
Hydrogen Production Catalyst
Oral Biofilm Inhibitor

138 patents:

1. 12571806 - Method for assisting detection of non-alcoholic steatohepatitis (2026-03-10),
2. 12516043 - Stiripentol derivative and use thereof (2026-01-06),
3. 12403179 - Release of growth factors at wound healing stages (2025-09-02),
4. 12244008 - Positive electrode material of secondary battery, and secondary battery using same (2025-03-04),
5. 12139819 - Wet spun fibers, wet formed film, and production method therefor (2024-11-12),
6. 11986353 - Ultrasonic diagnostic device, output method, and recording medium (2024-05-21),
7. 11975080 - Anti-mesothelin polypeptide, and tumor imaging agents and complexes thereof (2024-05-07),
8. 11933725 - Method for estimating sulfur component concentration in gasoline (2024-03-19),
9. 11858984 - Anti-S100A8/A9 antibody and use thereof (2024-01-02),
10. 11835516 - Determination method and kit for determining possibility of reduced renal function (2023-12-05),
11. 11722052 - Control method, controller, and control system for controlling a power converter including a resonant circuit (2023-08-08),
12. 11626586 - Positive electrode material of lithium secondary battery, and lithium secondary battery using same (2023-04-11),
13. 11621413 - Positive electrode material for lithium ion secondary battery (2023-04-04),
14. 11515527 - Positive electrode of secondary battery, and secondary battery using same (2022-11-29),
15. 11401604 - Film formation method (2022-08-02),
Company Overview
Okayama University, located in Okayama, Japan, is a prominent institution specializing in biomedical innovations. The university focuses on developing advanced technologies in areas such as tumor imaging agents, bioabsorbable stents, and anti-malignant tumor agents. Its research extends to drug delivery systems, laryngeal masks, and solutions for neurodegenerative diseases. With a commitment to addressing critical health challenges, Okayama University plays a vital role in the advancement of medical science and technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Okayama University USPTO Patent Assignee Logo
138 Patents

#2 in Okayama

#908 in Japan

#5,868 in the World

Okayama, JP
Okayama, Japan

Okayama University

Forward Citations = 293

328 inventors:

goldMedal Keiji Tsukada (8 out of 45 patents)

silverMedal Daisuke Horikawa (7 out of 25 patents)

bronzeMedal Takashi Teranishi (7 out of 7 patents)

4.  Hiroki Kakuta (7 out of 7 patents)

5.  Hiromi Kumon (7 out of 15 patents)

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