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Ykk Corporation

USPTO Granted Patents = 1,384

CIPO Patents = 47

EPO Patents = 653

Trademarks = 92

Forward Citations = 11,229

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894 inventors (with patents filed for the assignee):

Keiichi Keyaki (79 out of 87 patents)

Ryoichiro Uehara (57 out of 58 patents)

Ryuichi Murasaki (55 out of 78 patents)

4. Yoshikazu Hamada (38 out of 38 patents)

5. Yohei Miyazaki (38 out of 38 patents)

6. Tsuyoshi Minato (36 out of 38 patents)

7. Mitsuru Akeno (36 out of 40 patents)

8. Shigeyoshi Takazawa (35 out of 36 patents)

9. Hitoshi Kaneko (31 out of 52 patents)

10. Toshiaki Takizawa (31 out of 53 patents)

11. Yuichi Iwase (31 out of 31 patents)

12. Masayoshi Kojima (30 out of 30 patents)

13. Koji Yamagishi (29 out of 29 patents)

14. Kenichi Yoshie (27 out of 27 patents)

15. Shunji Akashi (26 out of 82 patents)

Core Competencies:

Slide Fastener

Automated Tire Chain Tensioner

Photosensitive Resin Composition

Artificial Intelligence Diagnosis

Fastener Chain

Waterproof Fastener

Electroplating Device

Vehicle Seat Assembly

Cushion for Arm Rests

Dental Replacement

Unified Communication Monitoring

1,384 patents: Sort by Forward Citations

1. 12507767 - Slide fastener, production method for same, and sewn slide fastener article (2025-12-30),

2. 12496946 - Cover material attachment (2025-12-16),

3. 12490814 - Slide fastener and slide fastener-attached product (2025-12-09),

4. D1102949 - Slider for slide fastener (2025-11-25),

5. 12478146 - Slider (2025-11-25),

6. 12471681 - Fastener tape, method for identifying same, method for manufacturing same, and slide fastener set (2025-11-18),

7. D1101612 - Retaining box for slide fastener (2025-11-11),

8. 12465120 - Slider for a slide fastener (2025-11-11),

9. D1098957 - Slider for slide fastener (2025-10-21),

10. D1098956 - Chain for slide fastener (2025-10-21),

11. D1098951 - Chain for slide fastener (2025-10-21),

12. 12442399 - Clip, cover-member attachment tool, and clip assembly (2025-10-14),

13. 12426686 - Fastening part, method of producing the same, and mold device (2025-09-30),

14. D1094178 - Retaining box for slide fastener (2025-09-23),

15. 12396526 - Fastener chain (2025-08-26),

YKK Corporation is a Japanese manufacturer of fasteners, primarily zippers. The company also produces other fastening products such as snaps and buttons. With a history dating back to 1934, YKK has become a global leader in the industry, known for its high-quality products and innovative design solutions. YKK's fastening products are used in various sectors including apparel, automotive, and equipment. The company is committed to sustainable practices and has implemented initiatives to reduce its environmental impact. Visit the YKK Corporation website to learn more about their products and corporate values.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

1,384 Patents

#76 in Tokyo

#156 in Japan

#696 in the World

Ykk Corporation

Forward Citations = 11,229

894 inventors:

Keiichi Keyaki (79 out of 87 patents)

Ryoichiro Uehara (57 out of 58 patents)

Ryuichi Murasaki (55 out of 78 patents)

4. Yoshikazu Hamada (38 out of 38 patents)

5. Yohei Miyazaki (38 out of 38 patents)

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