1. Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo (74 from 93 patents)

2. K.k. Ueno Seiyaku Oyo Kenkyujo (17 from 30 patents)

3. R-Tech Ueno, Ltd. (6 from 55 patents)

4. Ueno Fine Chemicals Industry, Ltd. (2 from 22 patents)

5. Lef Technology, Inc. (1 from 1 patent)

6. Sucampo Pharmaceuticals, Inc. (1 from 1 patent)

7. Kabushiki Kaisha Vend Seiyako Oyo Kenkyujo (1 from 1 patent)

8. 501 Ueno Seiyaku Kabushiki Kaisha (1 from 1 patent)

9. Ueno Seiyaku Kabushiki Kaisya (1 from 1 patent)

10. Kabushiki Kaisha Ueno Seiyaku Oyo K. (1 from 1 patent)

11. Kabushiki Kaisha Venoseiyaku Oyo Kenkyuso (1 from 1 patent)

12. Kabushiki Kaishaveno Seiyakuoyo Kenkyojo (1 from 1 patent)

13. K.k. Ueno Seiyaku Oyo Kenkyujc (1 from 1 patent)

14. Ryuzo Ueno (0 patent)

15. Akihiko Tabata (0 patent)

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