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EPO Patents = 1

Forward Citations = 2

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10 inventors (with patents filed for the assignee):

Takashi Inagaki (6 out of 6 patents)

Yasuyuki Kurita (4 out of 4 patents)

Yoshikazu Yamakawa (2 out of 2 patents)

4. Ryonosuke Yoshida (2 out of 2 patents)

5. Sadao Hayashi (2 out of 2 patents)

6. Akihito Mizutani (2 out of 2 patents)

7. Eiji Nakanishi (1 out of 19 patents)

8. Masahiko Okunishi (1 out of 6 patents)

9. Masao Kondo (1 out of 2 patents)

10. Kuniaki Tatsuta (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 8106230 - Succinic acid diester derivative, process for production thereof, and use of the derivative in the production of pharmaceutical preparation (2012-01-31),

2. 8030486 - Succinic acid diester derivative, process for production thereof, and use of the derivative in the production of pharmaceutical preparation (2011-10-04),

3. 5856320 - Cephem compounds, their preparation and their use as antimicrobial agents (1999-01-05),

4. 5831118 - Epimerization of 2- or 4- substituted cyclohexanecarboxylic acids (1998-11-03),

5. 5773624 - Method for preparing 5-amino-1,2,4-thiadiazol acetic acid derivatives (1998-06-30),

6. 5705650 - Process for preparing 1,2,4-thiadiazole derivatives (1998-01-06),

7. 5585494 - Process for preparing 1,2,4-thiadiazole derivatives (1996-12-17),

8. 5534508 - Cephem compounds and antimicrobial agents (1996-07-09),

Katayama Seiyakusyo Co., Ltd. is a Japanese company specializing in the manufacturing and distribution of pharmaceuticals, medical devices, and health supplements. With over 70 years of experience, the company is committed to providing high-quality products that contribute to the health and well-being of consumers. Katayama Seiyakusyo Co., Ltd. aims to be a trusted partner in healthcare by continuously innovating and improving its offerings.

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USPTO Data Jan 1 1976 - Dec 30 2025

8 Patents

#469 in Osaka

#4,916 in Japan

Osaka, Japan

Katayama Seiyakusyo Co., Ltd.