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Hokkaido University

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USPTO Granted Patents = 443

% Expired Patents = 37.0

CIPO Patents = 9

EPO Patents = 184

Forward Citations = 1,187

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1,001 inventors (with patents filed for the assignee):

Kunimasa Saitoh (26 out of 28 patents)

Katsuhiro Takenaga (18 out of 57 patents)

Koichi Mukasa (15 out of 31 patents)

4. Kazuhisa Sueoka (15 out of 19 patents)

5. Hideyoshi Harashima (14 out of 20 patents)

6. Takao Masuda (14 out of 35 patents)

7. Yusuke Sasaki (12 out of 13 patents)

8. Kikuo Umegaki (12 out of 45 patents)

9. Masayuki Fukushima (11 out of 25 patents)

10. Satoshi Ogasawara (10 out of 11 patents)

11. Jian Ping Gong (10 out of 11 patents)

12. Yuichiro Banba (10 out of 23 patents)

13. Yasuchika Hasegawa (10 out of 15 patents)

14. Koji Fushimi (10 out of 10 patents)

15. Naoki Miyamoto (10 out of 47 patents)

Core Competencies:

Virus-Resistant Plant

Lipid Nanoparticle

Cancer Treatment

Microcapsule

Quantum Key Distribution

Heat-Resistant Alloy

Antiviral Peptide

Radiotherapy Device

Functional Structure

Nuclear Reaction Detection

Solanaceous Plant

Spectroscopic Measuring Instrument

443 patents: Sort by Forward Citations

1. 12774519 - Dielectric composition, capacitive element, visible-light photocatalytic material, and visible-light photoelectric conversion element (2026-10-27),

2. 12738347 - Method for generating spectral data pertaining to microparticle sample, method for analyzing microparticles, method for distinguishing microparticles, method for assessing whether cancer-cell-derived exosomes are present, substrate for measuring spectrum of microparticles, device for measuring spectrum of microparticles, and apparatus for measuring spectrum of microparticles (2026-09-15),

3. 12697314 - Pharmaceutical composition for treating autosomal dominant polycystic kidney disease (2026-08-04),

4. 12696872 - Animal behavior recording device, animal behavior recording method, and program (2026-08-04),

5. 12694187 - Pattern generation device, pattern generation method and non-transitory computer-readable medium (2026-07-28),

6. 12681337 - Calibration method for phase modulator, calibration method for balanced photodetector, and calibration system for phase modulator (2026-07-14),

7. 12664342 - Solution search system, solution search method, and solution search program (2026-06-23),

8. 12654158 - Catalyst structure for synthesis gas production, synthesis gas production apparatus, and method for producing catalyst structure for synthesis gas production (2026-06-16),

9. 12653898 - Polyoxyethylene derivatives and conjugates thereof (2026-06-16),

10. 12643799 - Hydrogen permeable material (2026-06-02),

11. 12632956 - Fundus image processing device and non-transitory computer-readable storage medium storing computer-readable instructions (2026-05-19),

12. 12631156 - Ignition device, method for producing the same, ignition method and rocket combustion system (2026-05-19),

13. 12624471 - Aluminum member and manufacturing method thereof (2026-05-12),

14. 12623281 - Oxide-containing copper fine particles, method for producing same, and method for producing sintered compact using oxide-containing copper fine particles (2026-05-12),

15. 12618080 - SOLANACEOUS PLANT AND SOLANACEOUS PLANT CELL HAVING RESISTANCE TO TOMATO SPOTTED WILT VIRUS, AND METHOD FOR PRODUCING SOLANACEOUS PLANT (2026-05-05),

Company Overview

Hokkaido University, located in Sapporo, Japan, is a leading institution in plant biotechnology and related fields. The university specializes in developing innovative solutions such as virus-resistant plants and lipid nanoparticles, contributing to advancements in cancer treatment and antiviral therapies. Additionally, its research encompasses microcapsules, quantum key distribution, heat-resistant alloys, and radiotherapy devices, positioning Hokkaido University at the forefront of scientific exploration and technological development in both agricultural and medical applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

443 Patents

#1 in Sapporo

#414 in Japan

#2,149 in the World

Hokkaido University

Forward Citations = 1,187

1,001 inventors:

Kunimasa Saitoh (26 out of 28 patents)

Katsuhiro Takenaga (18 out of 57 patents)

Koichi Mukasa (15 out of 31 patents)

4. Kazuhisa Sueoka (15 out of 19 patents)

5. Hideyoshi Harashima (14 out of 20 patents)

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