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Otsuka Kagaku Kabushiki Kaisha

USPTO Granted Patents = 138

EPO Patents = 2

Trademarks = 5

Forward Citations = 858

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175 inventors (with patents filed for the assignee):

Hideo Tanaka (41 out of 75 patents)

Michio Sasaoka (40 out of 54 patents)

Yutaka Kameyama (33 out of 37 patents)

4. Sigeru Torii (26 out of 58 patents)

5. Takashi Shiroi (20 out of 33 patents)

6. Masatoshi Taniguchi (14 out of 19 patents)

7. Shigeru Torii (13 out of 16 patents)

8. Daisuke Suzuki (10 out of 20 patents)

9. Yuji Tada (8 out of 21 patents)

10. Masayoshi Suzue (8 out of 16 patents)

11. Ryo Kikuchi (8 out of 8 patents)

12. Hisashi Takao (8 out of 14 patents)

13. Akira Miyashita (7 out of 17 patents)

14. Norio Saito (5 out of 22 patents)

15. Akiyoshi Inubushi (5 out of 9 patents)

Core Competencies:

Deodorizing Activity

Pesticidal Resin Compositions

Flame-Retardant Epoxy Resin

Electroconductive Composition

Boron Nitride Production

Photocatalyst Development

Beta-Lactam Compounds

Thermosetting Resin Composition

Magnesium Alloy Processing

3-Cephem Derivatives

Conductive Fiber Technology

Interior Construction Materials

138 patents: Sort by Forward Citations

1. 7955472 - Interior construction material having deodorizing activity (2011-06-07),

2. 7604853 - Building material for interiors having odor elilinating property and interior structure of building using the same (2009-10-20),

3. 7368123 - Pesticidal resin compositions and pesticidal products formed from the same (2008-05-06),

4. 7183421 - Processes for producing oxide with higher oxidation than alcohol (2007-02-27),

5. 6887992 - 3-cephem derivative crystal (2005-05-03),

6. 6797830 - Process for producing oxide with higher oxidation than alcohol (2004-09-28),

7. 6797750 - Flame-retardant epoxy resin composition, molded article thereof, and electronic part (2004-09-28),

8. 6787192 - Process for producing part made of magnesium and/or magnesium alloy (2004-09-07),

9. 6713164 - Printing sheets (2004-03-30),

10. 6703438 - Electroconductive plate-like titania and electroconductive composition (2004-03-09),

11. 6632891 - Flame-retardant resin, composition thereof, and process for producing the same (2003-10-14),

12. 6576761 - Process for the preparation of cephem compounds (2003-06-10),

13. 6569264 - Surface-treating agent for magnesium-based part and method of surface treatment (2003-05-27),

14. 6541111 - Process for producing boron nitride (2003-04-01),

15. 6503967 - Hardener for epoxy resin and epoxy resin composition (2003-01-07),

Otsuka Kagaku Kabushiki Kaisha is a global healthcare company that specializes in the research, development, and manufacturing of innovative pharmaceutical products. With a commitment to improving the health and well-being of individuals worldwide, Otsuka focuses on areas such as neuroscience, oncology, and cardio-renal. The company provides a wide range of prescription drugs, over-the-counter medications, and wellness products. Otsuka strives to contribute to society through its various healthcare initiatives and partnerships.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

138 Patents

#29 in

#882 in Japan

#5,711 in the World

Otsuka Kagaku Kabushiki Kaisha

Forward Citations = 858

175 inventors:

Hideo Tanaka (41 out of 75 patents)

Michio Sasaoka (40 out of 54 patents)

Yutaka Kameyama (33 out of 37 patents)

4. Sigeru Torii (26 out of 58 patents)

5. Takashi Shiroi (20 out of 33 patents)

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