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Asahi Kasei Kogyo Kabushiki Kaisha

USPTO Granted Patents = 1,297

CIPO Patents = 3

Trademarks = 24

Forward Citations = 21,507

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1,620 inventors (with patents filed for the assignee):

Hisaya Sakurai (33 out of 33 patents)

Hideo Morita (31 out of 37 patents)

Tetsuya Miyake (25 out of 27 patents)

4. Takeo Kimura (25 out of 25 patents)

5. Tadashi Ikegami (25 out of 25 patents)

6. Maomi Seko (24 out of 24 patents)

7. Toshinori Shiraki (20 out of 39 patents)

8. Kyosuke Komiya (19 out of 24 patents)

9. Kunihiko Takeda (19 out of 19 patents)

10. Hidehiko Kobayashi (18 out of 18 patents)

11. Atsushi Aoshima (18 out of 21 patents)

12. Fusakazu Hayano (17 out of 17 patents)

13. Hirotsugu Miyauchi (17 out of 18 patents)

14. Kyoji Kimoto (16 out of 19 patents)

15. Takanori Sone (16 out of 17 patents)

Core Competencies:

Hollow Fiber Membrane

Polyamide Resin Composition

Tricyclic Compounds

Non-Aqueous Battery

Polyester Fiber

Aromatic Copolymer

Thermoplastic Polymer

Optical Signal Transmission

Hydrogen Fuel Cell

Enzyme Composition

Polyoxymethylene Resin

Olefin Polymerization Catalyst

1,297 patents: Sort by Forward Citations

1. 6872355 - Roof rail and method for producing the roof rail (2005-03-29),

2. 6632358 - Tank filtration apparatus containing hollow fiber membrane cartridge (2003-10-14),

3. 6625379 - Light-conducting plate and method of producing the same (2003-09-23),

4. 6590389 - Magnetic sensor, magnetic sensor apparatus, semiconductor magnetic resistance apparatus, and production method thereof (2003-07-08),

5. 6545053 - Tricyclic compounds and drug compositions containing same (2003-04-08),

6. 6515058 - Polyamide resin composition (2003-02-04),

7. 6514902 - Method for producing an oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane (2003-02-04),

8. 6495041 - Method for purifying aqueous suspension (2002-12-17),

9. 6461757 - Non-aqueous battery of a thin configuration (2002-10-08),

10. 6403284 - Process for producing photosensitive resin printing plate and treating solution (2002-06-11),

11. 6399699 - Polyacetal resin composition excellent in aging resistance (2002-06-04),

12. 6365655 - Process for stabilizing oxymethylene copolymer (2002-04-02),

13. 6350601 - Enzyme composition for use as a clinical diagnostic reagent (2002-02-26),

14. 6331248 - Hollow fiber membrane module (2001-12-18),

15. 6323300 - Aromatic copolymer and composition containing the same (2001-11-27),

Asahi Kasei Kogyo Kabushiki Kaisha is a Japanese chemical company. It operates in various business sectors such as chemicals, fibers, homes, construction materials, and healthcare. With a focus on innovation and sustainability, Asahi Kasei aims to contribute to society by providing high-quality products and solutions.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

1,297 Patents

#22 in Osaka

#167 in Japan

#747 in the World

Asahi Kasei Kogyo Kabushiki Kaisha

Forward Citations = 21,507

1,620 inventors:

Hisaya Sakurai (33 out of 33 patents)

Hideo Morita (31 out of 37 patents)

Tetsuya Miyake (25 out of 27 patents)

4. Takeo Kimura (25 out of 25 patents)

5. Tadashi Ikegami (25 out of 25 patents)

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