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Kyowa Hakko Kogyo Kabushiki Kaisha

USPTO Granted Patents = 45

Forward Citations = 287

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129 inventors (with patents filed for the assignee):

Masaji Kasai (8 out of 41 patents)

Makoto Morimoto (8 out of 44 patents)

Kunikatsu Shirahata (8 out of 36 patents)

4. Yutaka Saito (6 out of 57 patents)

5. Tadashi Ashizawa (6 out of 32 patents)

6. Motomichi Kono (5 out of 12 patents)

7. Shigenori Ohta (4 out of 9 patents)

8. Toshihide Nakanishi (4 out of 11 patents)

9. Hirofumi Nakano (3 out of 49 patents)

10. Satoshi Omura (3 out of 69 patents)

11. Shunji Ichikawa (3 out of 21 patents)

12. Hiroshi Sano (3 out of 94 patents)

13. Isao Kawamoto (3 out of 33 patents)

14. Haruo Tanaka (3 out of 14 patents)

15. Koji Yamada (3 out of 31 patents)

Core Competencies:

Ascorbic Acid Derivatives

Mitomycin Compounds

Antibacterial Activity

Cerebral Protection Agents

Antibiotic Substances

Whey Protein Quality

Plantlet Propagation

Cholinesterase Activity

Gelatin Properties

L-Tryptophan Production

N-Carboxylic Anhydrides

Phenylalanine Derivatives

45 patents: Sort by Forward Citations

1. 5578471 - Process for the preparation of ascorbic acid-2-phosphate (1996-11-26),

2. 5212079 - Process for the preparation of ascorbic acid-2-phosphate (1993-05-18),

3. 5132112 - HS-142-1 compounds (1992-07-21),

4. 5106868 - Epoxycyclohexenone amides with antibacterial activity (1992-04-21),

5. 5103018 - Mitomycin derivatives (1992-04-07),

6. 5082857 - Chemical compound (1992-01-21),

7. 5080917 - Oral compositions for ruminants (1992-01-14),

8. 5080911 - Process for modifying the properties of egg yolk (1992-01-14),

9. 5021423 - Mitomycin derivatives and intermediates therefor (1991-06-04),

10. 4962107 - Agent for cerebral protection (1990-10-09),

11. 4952576 - UCY1003 derivatives (1990-08-28),

12. 4892934 - Process for preparing hybridoma cells which produce tumor-specific (1990-01-09),

13. 4880825 - Mitomycin derivatives (1989-11-14),

14. 4824842 - Cinnamoyl piperidines and thiomorpholine and cerebral protection (1989-04-25),

15. 4820824 - Mitomaycin compounds (1989-04-11),

Kyowa Hakko Kogyo Kabushiki Kaisha, also known as Kyowa Kirin Co., Ltd., is a pharmaceutical company based in Japan. They specialize in developing and manufacturing innovative drugs and medical solutions. With a strong focus on research and development, Kyowa Kirin aims to improve the health and well-being of people worldwide. For more information, please visit their website.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

45 Patents

#4 in both of

#1,788 in Japan

#14,991 in the World

Kyowa Hakko Kogyo Kabushiki Kaisha

Forward Citations = 287

129 inventors:

Masaji Kasai (8 out of 41 patents)

Makoto Morimoto (8 out of 44 patents)

Kunikatsu Shirahata (8 out of 36 patents)

4. Yutaka Saito (6 out of 57 patents)

5. Tadashi Ashizawa (6 out of 32 patents)

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