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Unitika Ltd.

USPTO Granted Patents = 391

CIPO Patents = 2

EPO Patents = 72

Trademarks = 12

Forward Citations = 4,213

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650 inventors (with patents filed for the assignee):

Yoshiaki Echigo (30 out of 38 patents)

Hiroshi Nakajima (23 out of 72 patents)

Shigemitsu Murase (18 out of 18 patents)

4. Kunihiko Takagi (14 out of 14 patents)

5. Kazue Ueda (13 out of 13 patents)

6. Michiaki Hagiwara (12 out of 13 patents)

7. Fumio Matsuoka (11 out of 11 patents)

8. Keiichi Asami (11 out of 11 patents)

9. Kenjin Shiba (10 out of 10 patents)

10. Isao Tomioka (10 out of 10 patents)

11. Hitoshi Kondo (10 out of 36 patents)

12. Tsuyoshi Masumoto (10 out of 49 patents)

13. Takayoshi Okuzu (9 out of 9 patents)

14. Akira Shigeta (9 out of 9 patents)

15. Minoru Kishida (9 out of 9 patents)

Core Competencies:

Polyester Film

Gas Barrier Laminate

Water Purification Filter

Activated Carbon

Polyamide Resin

Laminated Film

Epoxy Resin

Nonwoven Fabric

Ferromagnetic Nanowires

Light Diffusion Sheet

Porous Polyamide Membrane

Bismaleimide Products

391 patents: Sort by Forward Citations

1. 12503549 - Biaxially-stretched polyester resin film and manufacturing method for same (2025-12-23),

2. 12486368 - Polyester film and method for producing same (2025-12-02),

3. 12479195 - Gas barrier laminate and method for manufacturing same (2025-11-25),

4. 12428532 - Method for producing polyamide resin film (2025-09-30),

5. 12421387 - Polyester film and method for producing same (2025-09-23),

6. 12377400 - Water purification filter (2025-08-05),

7. 12264420 - Method for thermal molding of filament product (2025-04-01),

8. 12258284 - Activated carbon (2025-03-25),

9. 12234162 - Water purification cartridge (2025-02-25),

10. 12180347 - Laminated film and method for manufacturing same (2024-12-31),

11. 12180339 - Flexible polyamide (2024-12-31),

12. 12048914 - Deodorizing material, method for producing the same, deodorization method, and deodorizing sheet (2024-07-30),

13. 12012491 - Method for producing polyamide resin film (2024-06-18),

14. 11965072 - Semiaromatic polyamide film and laminate obtained therefrom (2024-04-23),

15. 11958806 - Production method of maleimide (2024-04-16),

Unitika Ltd. is a Japanese company engaged in the manufacture and sale of chemical products, textiles, and advanced materials. With over a century of history, Unitika has expanded its presence globally and offers a wide range of innovative products across various industries such as automotive, electronics, energy, and more. Their commitment to sustainability and technological advancements enables them to contribute to a better future.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

391 Patents

#5 in Hyogo

#430 in Japan

#2,304 in the World

Unitika Ltd.

Forward Citations = 4,213

650 inventors:

Yoshiaki Echigo (30 out of 38 patents)

Hiroshi Nakajima (23 out of 72 patents)

Shigemitsu Murase (18 out of 18 patents)

4. Kunihiko Takagi (14 out of 14 patents)

5. Kazue Ueda (13 out of 13 patents)

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