For the Inventor, By the Inventor

Enter assignee name

Hoyu Co., Ltd.

USPTO Granted Patents = 29

CIPO Patents = 1

EPO Patents = 10

Trademarks = 4

Forward Citations = 134

Loading Chart...

Loading Chart...

52 inventors (with patents filed for the assignee):

Yosuke Kobayashi (4 out of 4 patents)

Yoshiyuki Uesawa (4 out of 4 patents)

Nana Morishita (3 out of 3 patents)

4. Emi Mori (3 out of 3 patents)

5. Yuki Sasao (3 out of 3 patents)

6. Yasue Yamazaki (3 out of 3 patents)

7. Kayoko Matsunaga (2 out of 2 patents)

8. Akiko Yagami (2 out of 2 patents)

9. Masashi Nakamura (2 out of 2 patents)

10. Yuji Aoki (2 out of 2 patents)

11. Hiroki Takahashi (2 out of 2 patents)

12. Fumiaki Sato (2 out of 2 patents)

13. Mikinobu Hasegawa (2 out of 2 patents)

14. Yoshihiro Konno (2 out of 2 patents)

15. Masakatsu Hata (2 out of 2 patents)

29 patents: Sort by Forward Citations

1. 12440558 - Soybean allergy antigen (2025-10-14),

2. 12303578 - Molded body (2025-05-20),

3. 11298419 - Quail egg allergy antigen (2022-04-12),

4. 11186617 - Epitope (2021-11-30),

5. 10729638 - Powder hair dye composition (2020-08-04),

6. 10537514 - Hair cosmetic composition (2020-01-21),

7. 10494167 - Dispenser for aerosol container (2019-12-03),

8. 10231912 - First agent for oxidation hair dye and method for stabilizing color tone of oxidation hair dyeing agent composition (2019-03-19),

9. 10226408 - Hair dye composition and method for stabilizing color tone of hair dye composition (2019-03-12),

10. 10052503 - First agent for oxidative hair dye and method for stabilizing color tone of oxidative hair dye composition (2018-08-21),

11. 10052268 - Oxidative hair dye composition (2018-08-21),

12. 10016353 - Hair cosmetic composition (2018-07-10),

13. 10016349 - Oxidative hair dye composition (2018-07-10),

14. 9707164 - Powdered hair dye composition (2017-07-18),

15. 9668950 - Powdered hair dye composition (2017-06-06),

HOYU CO., LTD. is a multinational cosmetics company based in Tokyo, Japan. They specialize in the development, production, and distribution of hair care, hair color, and hair styling products. With a strong emphasis on research and innovation, HOYU aims to provide high-quality products that meet the diverse needs of their customers worldwide. Their commitment to excellence has led to a strong presence in the global market, spanning over 70 countries. To learn more about HOYU CO., LTD. and their range of products, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

29 Patents

#35 in Aichi

#2,304 in Japan

#21,866 in the World

Hoyu Co., Ltd.

Forward Citations = 134

52 inventors:

Yosuke Kobayashi (4 out of 4 patents)

Yoshiyuki Uesawa (4 out of 4 patents)

Nana Morishita (3 out of 3 patents)

4. Emi Mori (3 out of 3 patents)

5. Yuki Sasao (3 out of 3 patents)

Please report any incorrect information to support@idiyas.com

Loading…