For the Inventor, By the Inventor

Enter assignee name

Otsuka Kagaku Yakuhin Kabushiki Kaisha

USPTO Granted Patents = 45

Forward Citations = 192

Loading Chart...

Loading Chart...

72 inventors (with patents filed for the assignee):

Hideo Tanaka (23 out of 75 patents)

Sigeru Torii (22 out of 58 patents)

Norio Saito (15 out of 22 patents)

4. Michio Sasaoka (13 out of 54 patents)

5. Junzo Nokami (13 out of 13 patents)

6. Takashi Shiroi (12 out of 33 patents)

7. Hisashi Takao (5 out of 14 patents)

8. Yuichi Kobayashi (4 out of 7 patents)

9. Kenji Uneyama (4 out of 6 patents)

10. Mitsuo Akada (3 out of 10 patents)

11. Tsukasa Maekawa (3 out of 6 patents)

12. Yasuo Shimizu (3 out of 6 patents)

13. Shigeaki Ohno (3 out of 3 patents)

14. Akira Tanaka (3 out of 4 patents)

15. Takeshi Gondo (3 out of 3 patents)

Core Competencies:

Cephem Derivatives

Azetidinone Derivatives

Thiazolidine Compounds

Amino Sulfenylcarbamate

Insecticidal Compositions

Cyclopentanone Derivatives

Hydrazodicarbonamide

Anti-Inflammatory Compositions

Heterocyclic Compounds

Foamed Synthetic Resin

Alkoxyphenols

Oxazolineazetidinone

45 patents: Sort by Forward Citations

1. 4853468 - Process for the preparation of cephem derivatives (1989-08-01),

2. 4810788 - Azetidinone disulfide derivatives and a process for preparing the same (1989-03-07),

3. 4801720 - Azetidinone disulfides and a ring opening process for preparing the same (1989-01-31),

4. 4789740 - Halogenation process for preparing (1988-12-06),

5. 4784734 - Azetidinone derivatives and process for the preparation of the same (1988-11-15),

6. 4689411 - 4-thio azetidinone intermediates and process for the preparation of the (1987-08-25),

7. 4603014 - Thiazolinoazetidinone derivatives and process for the preparation of the (1986-07-29),

8. 4588835 - Process for preparing alkoxyphenols (1986-05-13),

9. 4557750 - Sulfinamide derivatives, a process for preparing the derivatives and (1985-12-10),

10. 4544766 - Process for preparing aryl acetic acid derivatives (1985-10-01),

11. 4540708 - Sulfenyl carbamate derivatives and insecticidal compositions containing (1985-09-10),

12. 4532339 - Process for purifying aminosulfenylcarbamate derivatives (1985-07-30),

13. 4532077 - Thiazolineazetidinone-type compounds (1985-07-30),

14. 4499265 - Process for preparing 3-exo-methylenecepham derivatives (1985-02-12),

15. 4496469 - Heat-insulating refractory material consisting alkali titanate and (1985-01-29),

Otsuka Kagaku Yakuhin Kabushiki Kaisha (Otsuka Pharmaceutical Co., Ltd.) is a leading global healthcare company headquartered in Japan. The company specializes in the research, development, manufacture, and marketing of pharmaceuticals and nutraceuticals. With a focus on innovative solutions, Otsuka aims to improve the health and well-being of people worldwide. Their website provides comprehensive information about their products, research initiatives, and corporate philosophy.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

45 Patents

#169 in Osaka

#1,788 in Japan

#14,978 in the World

Otsuka Kagaku Yakuhin Kabushiki Kaisha

Forward Citations = 192

72 inventors:

Hideo Tanaka (23 out of 75 patents)

Sigeru Torii (22 out of 58 patents)

Norio Saito (15 out of 22 patents)

4. Michio Sasaoka (13 out of 54 patents)

5. Junzo Nokami (13 out of 13 patents)

Please report any incorrect information to support@idiyas.com

Loading…