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Ykk Ap Inc.

USPTO Granted Patents = 15

% Expired Patents = 20.0

EPO Patents = 7

Trademarks = 2

Forward Citations = 59

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37 inventors (with patents filed for the assignee):

Koji Matsuda (5 out of 7 patents)

Isao Kobayashi (4 out of 76 patents)

Kazuhiro Kanayama (2 out of 2 patents)

4. Naoki Yasuda (2 out of 33 patents)

5. Akio Ozawa (2 out of 4 patents)

6. Takashi Hori (2 out of 7 patents)

7. Masaki Nomura (2 out of 2 patents)

8. Hideoki Tanaka (2 out of 2 patents)

9. Toshihiko Saito (1 out of 27 patents)

10. Shigeyuki Nagai (1 out of 7 patents)

11. Keiichi Honda (1 out of 6 patents)

12. John Patrick Daniels (1 out of 2 patents)

13. Jin Goto (1 out of 3 patents)

14. Hiroyuki Sasaki (1 out of 2 patents)

15. Tsutomu Ito (1 out of 11 patents)

15 patents: Sort by Forward Citations

1. 12523090 - Resin profile joining method (2026-01-13),

2. 12479166 - Resin profile joining method and resin profile joining device (2025-11-25),

3. 11673346 - Manufacturing method of resin frame (2023-06-13),

4. 11472128 - Manufacturing method of resin frame (2022-10-18),

5. 11167501 - Resin frame and fitting (2021-11-09),

6. 8194967 - Article visual inspection apparatus (2012-06-05),

7. 7856757 - Sash window assembly (2010-12-28),

8. 7681360 - Sash window assembly (2010-03-23),

9. 7543409 - Door pull and sash window having the door pull (2009-06-09),

10. 7537252 - Vehicle bumper structure (2009-05-26),

11. D579758 - Sash lock (2008-11-04),

12. D565200 - Component of heat-insulating doors and windows (2008-03-25),

13. D559097 - Window stay (2008-01-08),

14. D559096 - Window stay (2008-01-08),

15. D539634 - Lock (2007-04-03),

YKK AP Inc., headquartered in Tokyo, specializes in the development and manufacturing of architectural products, particularly in the field of building materials and construction solutions. The company is renowned for its innovative offerings in windows, doors, and curtain walls, emphasizing energy efficiency and sustainability. YKK AP is committed to advancing technology in the construction sector, focusing on enhancing the performance and aesthetics of buildings while ensuring safety and durability in various environments.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

15 Patents

#1,540 in Tokyo

#3,441 in Japan

#39,846 in the World

Ykk Ap Inc.

Forward Citations = 59

37 inventors:

Koji Matsuda (5 out of 7 patents)

Isao Kobayashi (4 out of 76 patents)

Kazuhiro Kanayama (2 out of 2 patents)

4. Naoki Yasuda (2 out of 33 patents)

5. Akio Ozawa (2 out of 4 patents)

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