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Ibaraki University

USPTO Granted Patents = 14

% Expired Patents = 50.0

EPO Patents = 2

Forward Citations = 7

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26 inventors (with patents filed for the assignee):

Haruhiko Udono (4 out of 4 patents)

Takehito Suzuki (3 out of 5 patents)

Toshiaki Asahi (2 out of 3 patents)

4. Toru Masuzawa (2 out of 7 patents)

5. Seiji Iyasu (1 out of 41 patents)

6. Takehiro Nagasawa (1 out of 12 patents)

7. Atsushi Nakajima (1 out of 6 patents)

8. Keizo Tsukamoto (1 out of 4 patents)

9. Akio Kishida (1 out of 11 patents)

10. Tetsuya Higami (1 out of 4 patents)

11. Masatoshi Uno (1 out of 1 patent)

12. Yuji Hayashi (1 out of 46 patents)

13. Eisuke Sasaki (1 out of 2 patents)

14. Yohiko Mito (1 out of 1 patent)

15. Yoshiharu Tanaka (1 out of 11 patents)

14 patents: Sort by Forward Citations

1. 12448704 - MgSi single crystal, MgSi single crystal substrate, infrared light receiving element and method for producing MgSi single crystal (2025-10-21),

2. 12368034 - Support body, manufacturing apparatus for support body, and manufacturing method for support body (2025-07-22),

3. 11935974 - Semiconductor material, infrared light receiving element and method for producing semiconductor material (2024-03-19),

4. 11011664 - Photodiode and photosensitive device (2021-05-18),

5. 10897208 - Full bridge configuration power conversion apparatus for power conversion among at least three devices (2021-01-19),

6. 10302830 - Wire grid device (2019-05-28),

7. 9964678 - Wire grid device (2018-05-08),

8. 9799960 - Metal plate lens comprising multiple metallic plates with through holes of different sizes (2017-10-24),

9. 9203280 - Magnetic levitation control device and hybrid type magnetic bearing (2015-12-01),

10. 9181607 - Apparatus and method for producing Mg(2)Si(1-x)Sn(x) polycrystal (2015-11-10),

11. 8871332 - Transparent fluorine-containing polymer (2014-10-28),

12. 8778691 - Bromate ion measurement method (2014-07-15),

13. 8226636 - Biological tissue bonding device and biological tissue bonding medical instrument (2012-07-24),

14. 8188362 - Photophysicochemical cell (2012-05-29),

Company Overview

Ibaraki University, located in Mito, Japan, is a prominent institution dedicated to advanced research and education across various disciplines. The university specializes in fields such as engineering, environmental science, and health sciences, fostering innovation and technological development. With a strong emphasis on interdisciplinary collaboration, Ibaraki University aims to address global challenges through cutting-edge research and community engagement, contributing significantly to regional and international advancements in knowledge and technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

14 Patents

#1 in Mito

#3,584 in Japan

#42,290 in the World

Ibaraki University

Forward Citations = 7

26 inventors:

Haruhiko Udono (4 out of 4 patents)

Takehito Suzuki (3 out of 5 patents)

Toshiaki Asahi (2 out of 3 patents)

4. Toru Masuzawa (2 out of 7 patents)

5. Seiji Iyasu (1 out of 41 patents)

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