For the Inventor, By the Inventor

Enter assignee name

Naka Corporation

USPTO Granted Patents = 3

Forward Citations = 172

Loading Chart...

Loading Chart...

6 inventors (with patents filed for the assignee):

Hiromasa Naka (3 out of 4 patents)

Takehiko Okushima (3 out of 4 patents)

Takao Okumura (3 out of 4 patents)

4. Tetsuo Tobikawa (3 out of 3 patents)

5. Tatsuo Shoji (3 out of 4 patents)

6. Norio Nakamura (2 out of 43 patents)

3 patents: Sort by Forward Citations

1. 5162612 - Closure plate for covering opening of floor panels (1992-11-10),

2. 5072557 - Device for fixing floor panels (1991-12-17),

3. 4996804 - Device and structure for supporting floor panels (1991-03-05),

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

3 Patents

#3,267 in Tokyo

#8,769 in Japan

Naka Corporation

Forward Citations = 172

6 inventors:

Hiromasa Naka (3 out of 4 patents)

Takehiko Okushima (3 out of 4 patents)

Takao Okumura (3 out of 4 patents)

4. Tetsuo Tobikawa (3 out of 3 patents)

5. Tatsuo Shoji (3 out of 4 patents)

Please report any incorrect information to support@idiyas.com

Loading…