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Ensuiko Sugar Refining Co., Ltd.

USPTO Granted Patents = 29

EPO Patents = 3

Forward Citations = 209

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55 inventors (with patents filed for the assignee):

Koji Hara (12 out of 22 patents)

Koki Fujita (11 out of 23 patents)

Nobuhiro Kuwahara (11 out of 11 patents)

4. Kozo Hara (9 out of 15 patents)

5. Sumio Kitahata (9 out of 13 patents)

6. Katsuhiko Mikuni (8 out of 11 patents)

7. Kyoko Koizumi (6 out of 6 patents)

8. Tetsuya Ito (5 out of 51 patents)

9. Hiroki Hamada (4 out of 5 patents)

10. Hiroshi Okumoto (4 out of 6 patents)

11. Tadakatsu Mandai (4 out of 8 patents)

12. Isamu Uemasu (4 out of 4 patents)

13. Hideki Takahashi (3 out of 8 patents)

14. Hisaharu Masaki (3 out of 3 patents)

15. Yosuke Takagi (2 out of 35 patents)

29 patents: Sort by Forward Citations

1. 12241112 - D-glucaric acid producing bacterium, and method for manufacturing D-glucaric acid (2025-03-04),

2. 10975396 - D-glucaric acid producing bacterium, and method for manufacturing D-glucaric acid (2021-04-13),

3. 10913821 - Polymer having aldaric acid as constitutional unit and method for producing same (2021-02-09),

4. 10682330 - Method for producing liposome encapsulating paclitaxel monoglycoside and/or docetaxel monoglycoside (2020-06-16),

5. 8530186 - Method for producing glucuronic acid by glucuronic acid fermentation (2013-09-10),

6. 7491518 - Method of elevating yield of oligosaccharides containing α-galactosyl and anti-candida compositions (2009-02-17),

7. 7030237 - Method and equipment for continuous and selective inclusion separation (2006-04-18),

8. 6136990 - Taxoid compound and method for producing the same (2000-10-24),

9. 6075132 - Ursodeoxycholic acid derivatives and methods for producing them (2000-06-13),

10. 5854408 - Process for acylating the 1-position of saccharides (1998-12-29),

11. 5767297 - Taxoid derivative and method of producing thereof (1998-06-16),

12. 5763598 - Branched cyclodextrins and method for producing them (1998-06-09),

13. 5684169 - Cyclodextrin inclusion complex of taxol, and method for its production (1997-11-04),

14. 5623071 - Galactosyl and mannosyl cyclodextrins (1997-04-22),

15. 5622844 - Method of preparing a mannosyl-cyclodextrin (1997-04-22),

Ensuiko Sugar Refining Co., Ltd. is a leading sugar refining company based in Japan. With years of expertise in the industry, the company specializes in the production, refining, and distribution of high-quality sugar products. Ensuiko Sugar Refining Co., Ltd. is committed to delivering products that exceed customer expectations through continuous innovation, strict quality control, and sustainable practices. Visit their website for more information.

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Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

29 Patents

#943 in Tokyo

#2,301 in Japan

#21,864 in the World

Ensuiko Sugar Refining Co., Ltd.

Forward Citations = 209

55 inventors:

Koji Hara (12 out of 22 patents)

Koki Fujita (11 out of 23 patents)

Nobuhiro Kuwahara (11 out of 11 patents)

4. Kozo Hara (9 out of 15 patents)

5. Sumio Kitahata (9 out of 13 patents)

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