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Kikkoman Corporation

USPTO Granted Patents = 236

EPO Patents = 59

Trademarks = 60

Forward Citations = 1,431

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325 inventors (with patents filed for the assignee):

Atsushi Ichiyanagi (22 out of 22 patents)

Naoki Kajiyama (20 out of 20 patents)

Denmi Kuwagaki (17 out of 17 patents)

4. Nobuyuki Yamaji (16 out of 17 patents)

5. Yasuji Koyama (15 out of 19 patents)

6. Yosuke Masakari (14 out of 14 patents)

7. Kozo Hirokawa (14 out of 14 patents)

8. Masaru Matsuura (13 out of 14 patents)

9. Eiichi Nakano (12 out of 17 patents)

10. Keiko Kurosawa (10 out of 10 patents)

11. Seiichi Hara (9 out of 10 patents)

12. Takeharu Nakahara (9 out of 9 patents)

13. Masashi Fukumoto (9 out of 9 patents)

14. Seiji Murakami (9 out of 10 patents)

15. Akio Obata (9 out of 10 patents)

Core Competencies:

Selenoneine Production

Glycated Hemoglobin Measurement

Virus-Resistant Plants

Alkaline Phosphatase

Continuous Glucose Monitoring

Soy Sauce Production

Amadoriase Variants

Ergothioneine Production

Nucleic Acid Fermented Seasoning

Glucose Dehydrogenase

Microorganism Cultures

Citrus Seed Extract

236 patents: Sort by Forward Citations

1. 12511336 - Food information presentation system, food information presentation method, food information presentation device, food information presentation program, and storage medium on which program is recorded (2025-12-30),

2. 12398411 - Method for producing selenoneine (2025-08-26),

3. 12258589 - Glycated hemoglobin oxidase variant and method for measurement (2025-03-25),

4. 12234466 - microorganism carrying disruptions of multiple genes and a method of producing thereof (2025-02-25),

5. 11932880 - Enzyme and method for assaying pentosidine using same (2024-03-19),

6. 11932860 - Method for producing alkaline phosphatase, alkaline phosphatase obtained using said method, and vector and transformant for production thereof (2024-03-19),

7. 11879149 - Quantification method of ethanolamine phosphate, oxidoreductase for quantification, composition for quantification, kit for quantification and sensor for quantification (2024-01-23),

8. 11814639 - Virus-resistant plant and method for producing the same (2023-11-14),

9. 11781167 - Continuous glucose monitoring using an FAD-dependent glucose dehydrogenase (2023-10-10),

10. 11766061 - Soy sauce-like liquid seasoning and method for producing same (2023-09-26),

11. 11684072 - Soy milk fermented substance (2023-06-27),

12. 11629341 - Method for producing selenoneine (2023-04-18),

13. 11549134 - Modified amadoriase and method for producing the same, agent for improving surfactant resistance of amadoriase and composition for measuring HbA1c using the same (2023-01-10),

14. 11518976 - Method for producing double-stranded RNA-rich lactic acid bacterium, and said lactic acid bacterium (2022-12-06),

15. 11505816 - Medium for detecting, sheet for detectingcomprising same, and method for detectingusing same (2022-11-22),

Kikkoman Corporation is a Japanese food company that specializes in producing soy sauce and other related food products. With a history spanning over 300 years, Kikkoman is recognized globally for its high-quality and authentic soy sauce. The company is committed to preserving traditional fermentation methods while adapting to modern production techniques. In addition to soy sauce, Kikkoman offers a wide range of sauces, seasonings, and processed food products to cater to diverse culinary preferences worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

236 Patents

#2 in Chiba

#608 in Japan

#3,527 in the World

Kikkoman Corporation

Forward Citations = 1,431

325 inventors:

Atsushi Ichiyanagi (22 out of 22 patents)

Naoki Kajiyama (20 out of 20 patents)

Denmi Kuwagaki (17 out of 17 patents)

4. Nobuyuki Yamaji (16 out of 17 patents)

5. Yasuji Koyama (15 out of 19 patents)

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