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Sanwa Shutter Corporation

USPTO Granted Patents = 23

% Expired Patents = 4.3

Forward Citations = 405

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45 inventors (with patents filed for the assignee):

Kenji Yamaguchi (5 out of 52 patents)

Noriaki Tokuyama (5 out of 5 patents)

Yoshitsugu Utsumi (4 out of 4 patents)

4. Kenji Hosoyama (4 out of 4 patents)

5. Masakazu Makino (3 out of 3 patents)

6. Fumitoshi Okazaki (3 out of 3 patents)

7. Masato Hirao (3 out of 3 patents)

8. Masaaki Munekata (3 out of 3 patents)

9. Hideo Hirabayashi (3 out of 10 patents)

10. Atsushi Matsumura (2 out of 27 patents)

11. Yoshihiro Otsuka (2 out of 3 patents)

12. Yasunori Kobayashi (2 out of 8 patents)

13. Kazunobu Fukano (2 out of 2 patents)

14. Kiyoshi Abe (2 out of 27 patents)

15. Takeaki Hamada (2 out of 2 patents)

23 patents: Sort by Forward Citations

1. 7389807 - Sheet shutter device (2008-06-24),

2. 6457508 - Sunshade roll screen (2002-10-01),

3. 6230785 - Electrically-driven closure apparatus for building (2001-05-15),

4. 6125907 - Electrically-driven closure apparatus for building (2000-10-03),

5. 5799716 - Electric-powered shutter apparatus for a building opening (1998-09-01),

6. 5460216 - Device for moving a winding shaft in a building shutter (1995-10-24),

7. 5277009 - Exterior wall units comprising siding members and tiles (1994-01-11),

8. 5265663 - Architectural shutter curtain device (1993-11-30),

9. 5265662 - Shutter curtain for a building opening (1993-11-30),

10. 5205336 - Rolling shutter (1993-04-27),

11. D332147 - Bay window (1992-12-29),

12. 5172742 - Panel shutter device (1992-12-22),

13. D331468 - Bay window (1992-12-01),

14. 5161593 - Shutter assembly for a bay window (1992-11-10),

15. D328795 - Skylight (1992-08-18),

Sanwa Shutter Corporation is a leading manufacturer of high-quality shutters and sunshade products. With decades of experience, Sanwa Shutter Corporation has established a strong reputation for innovation and excellent customer service. Their products are known for their durability, functionality, and aesthetic appeal. Visit their website for more information.

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

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USPTO Data Jan 1 1976 - Sep 15 2026

23 Patents

#1,244 in Tokyo

#2,701 in Japan

#27,581 in the World

Sanwa Shutter Corporation

Forward Citations = 405

45 inventors:

Kenji Yamaguchi (5 out of 52 patents)

Noriaki Tokuyama (5 out of 5 patents)

Yoshitsugu Utsumi (4 out of 4 patents)

4. Kenji Hosoyama (4 out of 4 patents)

5. Masakazu Makino (3 out of 3 patents)

Please report any incorrect information to [email protected]

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