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Tokiwa Phytochemical Co., Ltd.

USPTO Granted Patents = 8

Trademarks = 6

Forward Citations = 11

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17 inventors (with patents filed for the assignee):

Jinwei Yang (3 out of 3 patents)

Tsutomu Sasaki (2 out of 2 patents)

Shujiro Seo (2 out of 2 patents)

4. Jin Tatsuzaki (1 out of 1 patent)

5. Tsutomu Ishikawa (1 out of 1 patent)

6. Masao Takahashi (1 out of 10 patents)

7. Nobuhito Kimura (1 out of 1 patent)

8. Tsutomu Shimada (1 out of 19 patents)

9. Yuka Koike (1 out of 1 patent)

10. Naoaki Yoshida (1 out of 1 patent)

11. Chihiro Mori (1 out of 1 patent)

12. Hiromitsu Takayama (1 out of 1 patent)

13. Mariko Kitajima (1 out of 1 patent)

14. Tomoko Ishizuka (1 out of 1 patent)

15. Tomoko Kuniyoshi (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 11452756 - Composition and method for improving quantity of tear fluid, composition, treating constipation and improving skin quality (2022-09-27),

2. 11154581 - Method for improvement of stiff neck and shoulders (2021-10-26),

3. 10889557 - Method of producing an alkoxyflavone derivative (2021-01-12),

4. 10377902 - Crystallized red pigment, method of producing a recrystallized red pigment and a method for improving the appearance of or preventing wrinkles (2019-08-13),

5. 9745279 - Sirtuin activator (2017-08-29),

6. 8101795 - Process for preparing high purity corosolic acid and high purity ursolic acid (2012-01-24),

7. 7071229 - Process for producing corosolic acid (2006-07-04),

8. 6737085 - Apocynum venetum extract for use as antidepressant (2004-05-18),

Tokiwa Phytochemical Co., Ltd. is a leading manufacturer of high-quality plant-based ingredients for the pharmaceutical, nutraceutical, and cosmetic industries. With a focus on research and innovation, Tokiwa Phytochemical is committed to providing natural and sustainable solutions to meet the ever-evolving needs of their customers. Their products are known for their purity, potency, and consistency, making them a trusted partner for companies around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

8 Patents

#1 in Sakura

#4,914 in Japan

Tokiwa Phytochemical Co., Ltd.

Forward Citations = 11

17 inventors:

Jinwei Yang (3 out of 3 patents)

Tsutomu Sasaki (2 out of 2 patents)

Shujiro Seo (2 out of 2 patents)

4. Jin Tatsuzaki (1 out of 1 patent)

5. Tsutomu Ishikawa (1 out of 1 patent)

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