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Maruho Co., Ltd.

USPTO Granted Patents = 14

CIPO Patents = 3

EPO Patents = 9

Trademarks = 5

Forward Citations = 223

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56 inventors (with patents filed for the assignee):

Hitoshi Mizutani (2 out of 6 patents)

Tomoki Sakaguchi (2 out of 2 patents)

Yasuhiro Yasutomi (2 out of 2 patents)

4. Setsuro Fujii (2 out of 69 patents)

5. Sakumi Kanamoto (2 out of 2 patents)

6. Akio Ishida (2 out of 2 patents)

7. Toshiharu Muraoka (2 out of 2 patents)

8. Nobumoto Chikazawa (2 out of 3 patents)

9. Yasuyuki Hitomi (1 out of 4 patents)

10. Hirokazu Tanaka (1 out of 34 patents)

11. Noriaki Kaneda (1 out of 1 patent)

12. Hiroki Sakiyama (1 out of 1 patent)

13. Tomomi Shigeno (1 out of 1 patent)

14. Hidetoshi Emi (1 out of 1 patent)

15. Hideki Watanabe (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 11439634 - Medical skin external preparation (2022-09-13),

2. 10894009 - Topical agent for transdermal administration (2021-01-19),

3. 9555025 - Ointment with excellent formulation stability (2017-01-31),

4. 9468556 - Deformed nail corrector (2016-10-18),

5. 8778965 - Lotion preparation containing pyridonecarboxylic acid derivative (2014-07-15),

6. 8664205 - [object Object] (2014-03-04),

7. 7622297 - Pharmaceutical use of α antigen or α antigen gene (2009-11-24),

8. 7524675 - Pharmaceutical use of alpha antigen or alpha antigen gene (2009-04-28),

9. 7449177 - Remedy for pemphigoid (2008-11-11),

10. 7091316 - Protein induced by homogeneous blood transfusion and DNA encoding the same (2006-08-15),

11. 4788141 - Automatic analyzer for guanase activity (1988-11-29),

12. 4550076 - Rapid assaying method for guanase (1985-10-29),

13. 4274415 - Surgical clip and its assembly (1981-06-23),

14. 4220334 - Separable type elastic finger rehabilitation device (1980-09-02),

Maruho Co., Ltd. is a Japanese pharmaceutical company specializing in dermatology and orthopedics. Founded in 1915, Maruho has grown to become a global leader in the development and production of innovative healthcare products. With a strong focus on research and development, Maruho is committed to advancing medical science and improving the lives of people around the world.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

14 Patents

#331 in Osaka

#3,485 in Japan

#40,882 in the World

Maruho Co., Ltd.

Forward Citations = 223

56 inventors:

Hitoshi Mizutani (2 out of 6 patents)

Tomoki Sakaguchi (2 out of 2 patents)

Yasuhiro Yasutomi (2 out of 2 patents)

4. Setsuro Fujii (2 out of 69 patents)

5. Sakumi Kanamoto (2 out of 2 patents)

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