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Nippon Suisan Kaisha, Ltd.

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USPTO Granted Patents = 123

% Expired Patents = 18.7

CIPO Patents = 9

EPO Patents = 38

Forward Citations = 843

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189 inventors (with patents filed for the assignee):

Nobushige Doisaki (25 out of 31 patents)

Hideaki Yamaguchi (12 out of 19 patents)

Kazuhiko Hata (12 out of 18 patents)

4. Jiro Takeo (12 out of 13 patents)

5. Yuji Okita (11 out of 17 patents)

6. Shuji Jinno (10 out of 10 patents)

7. Seizo Sato (9 out of 10 patents)

8. Naomi Ohtsuka (9 out of 9 patents)

9. Kiyomi Furihata (8 out of 13 patents)

10. Takuro Fukae (8 out of 8 patents)

11. Hiroyuki Kawahara (7 out of 21 patents)

12. Junichiro Hata (7 out of 7 patents)

13. Takaaki Okita (7 out of 14 patents)

14. Shinji Tokiwa (6 out of 7 patents)

15. Kazunori Matsushima (6 out of 7 patents)

Core Competencies:

Microbial Oil

Aquaculture

Highly Unsaturated Fatty Acids

EPA

DHA

Fish Farming

Docosahexaenoic Acid

Dihomo-gamma-linolenic Acid

Lipids

Protein

Eicosapentaenoic Acid

Aquacultured Crustacean

123 patents: Sort by Forward Citations

1. 12642287 - Aquacultured crustacean and method of producing same (2026-06-02),

2. 12540343 - METHOD FOR PRODUCING MICROBIAL OIL FROM LABYRINTHULID MICROORGANISM CAPABLE OF PRODUCING SAID MICROBIAL OIL (2026-02-03),

3. 12442024 - Dihomo-gamma-linolenic acid-containing microbial oil/lipid with reduced arachidonic acid content (2025-10-14),

4. 12329182 - Feed for fish farming (2025-06-17),

5. 12209227 - Docosahexaenoic acid-containing oil and method for producing same (2025-01-28),

6. 12058984 - Aquaculture shrimps and methods for culturing same (2024-08-13),

7. 11898190 - Labyrinthulid microorganism capable of producing microbial oil, microbial oil, methods for producing said microorganism and for producing said microbial oil, and uses of said microorganism and said microbial oil (2024-02-13),

8. 11882865 - Method of fabricating processed food product containing protein (2024-01-30),

9. 11856952 - Microbial oil, production method for microbial oil, concentrated microbial oil, and production method for concentrated microbial oil (2024-01-02),

10. 11766059 - Aquacultured crustacean and method of producing same (2023-09-26),

11. 11679091 - Lymphatic circulation improving agents (2023-06-20),

12. 11648229 - Composition containing eicosapentaenoic acid alkyl ester, and method for producing same (2023-05-16),

13. 11617732 - Composition for improving vascular endothelial function (2023-04-04),

14. 11603347 - Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same (2023-03-14),

15. 11528893 - Cephalopod rearing cage, cephalopod escape prevention sheet, and use thereof (2022-12-20),

Company Overview

Nippon Suisan Kaisha, Ltd. is a prominent player in the field of microbial oil production, focusing on sustainable aquaculture practices. The company specializes in the development and manufacturing of highly unsaturated fatty acids, including EPA and DHA, which are essential for health and nutrition. With a commitment to innovation in fish farming, Nippon Suisan leverages advanced technologies to enhance the quality and efficiency of aquaculture, contributing to the global demand for sustainable seafood solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

123 Patents

#491 in Tokyo

#999 in Japan

#6,520 in the World

Nippon Suisan Kaisha, Ltd.

Forward Citations = 843

189 inventors:

Nobushige Doisaki (25 out of 31 patents)

Hideaki Yamaguchi (12 out of 19 patents)

Kazuhiko Hata (12 out of 18 patents)

4. Jiro Takeo (12 out of 13 patents)

5. Yuji Okita (11 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Suisan Kaisha, Ltd.. Retrieved from https://idiyas.com/company/nippon-suisan-kaisha

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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