For the Inventor, By the Inventor

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Miyazaki, Japan

Well Stone Co.

USPTO Granted Patents = 14

CIPO Patents = 3

EPO Patents = 10

Forward Citations = 12

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8 inventors (with patents filed for the assignee):

Yoichi Ishii (13 out of 16 patents)

Takeshi Okamoto (10 out of 54 patents)

Sayaka Makino (6 out of 6 patents)

4. Takayuki Nemoto (3 out of 3 patents)

5. Kazuyuki Ishii (3 out of 11 patents)

6. Sayaka Ishii (2 out of 5 patents)

7. Hiroyuki Sumi (2 out of 14 patents)

8. Etsuo Yoshida (2 out of 2 patents)

9. Okamoto Takeshi (1 patent)

10. Ishii Kazuyuki (1 patent)

11. Ishii Yoichi (0 patent)

12. Makino Sayaka (0 patent)

13. Nemoto Takayuki (0 patent)

14 patents: Sort by Forward Citations

1. 12318410 - Method for producing therapeutic agent for skin lesions, and therapeutic agent for skin lesions (2025-06-03),

2. 11896625 - Method for producing therapeutic agent for skin lesions, and therapeutic agent for skin lesions (2024-02-13),

3. 11642380 - Production method of nasal drop composition, and nasal drop composition (2023-05-09),

4. 11266595 - Deodorant production method and deodorant (2022-03-08),

5. 11260022 - Method for producing oral composition, and oral composition (2022-03-01),

6. 11147842 - Method for producing therapeutic agent for skin lesions, and therapeutic agent for skin lesions (2021-10-19),

7. 11077152 - Method of producing nasal drop composition by mixing earthworm castings with water (2021-08-03),

8. 10576108 - Tau protein production accelerator, and therapeutic or preventive agent and therapeutic or preventive food composition for diseases caused by tau protein deficiency (2020-03-03),

9. 10398740 - Tau protein production accelerator, and therapeutic or preventive agent and therapeutic or preventive food composition for diseases caused by tau protein deficiency (2019-09-03),

10. 10155012 - Catecholamine production accelerator, and therapeutic and preventive agent and therapeutic and preventive food composition for diseases caused by catecholamine deficiency (2018-12-18),

11. 9511098 - Method for producing dry earthworm powder (2016-12-06),

12. 9060958 - Tyrosinase inhibitor produced using dried earthworm powder, and method for producing same (2015-06-23),

13. 8394417 - Method of producing a dry earthworm powder (2013-03-12),

14. 8137701 - Method of producing a dry earthworm powder (2012-03-20),

Well Stone Co. is a leading manufacturer and supplier of high-quality stone products. With expertise in natural stone, engineered stone, and tile products, we cater to residential and commercial projects. Our extensive range includes countertops, vanity tops, tiles, slabs, fireplaces, and more. We are committed to providing exceptional craftsmanship, competitive pricing, and reliable customer service. Visit our website to explore our product range and contact us for any stone-related requirement.

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

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USPTO Data Jan 1 1976 - Jan 6 2026

14 Patents

#5 in Miyazaki

#3,488 in Japan

#40,961 in the World

Miyazaki, Japan

Well Stone Co.

Forward Citations = 12

8 inventors:

Yoichi Ishii (13 out of 16 patents)

Takeshi Okamoto (10 out of 54 patents)

Sayaka Makino (6 out of 6 patents)

4. Takayuki Nemoto (3 out of 3 patents)

5. Kazuyuki Ishii (3 out of 11 patents)

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