For the Inventor, By the Inventor

Enter assignee name

Koyo Engineering

USPTO Granted Patents = 1

Forward Citations = 1

Loading Chart...

Loading Chart...

5 inventors (with patents filed for the assignee):

Tetsu Tatsuma (1 out of 4 patents)

Shuichi Saitoh (1 out of 2 patents)

Katsuhisa Kashiwazaki (1 out of 2 patents)

4. Yoshihisa Ohko (1 out of 1 patent)

5. Akira Fujishima (1 out of 10 patents)

1 patent: Sort by Forward Citations

1. 6882459 - Photoreactive devices, translucent members, ornaments, anticorrosive devices, devices for reducing oxygen and devices for controlling growth of microorganisms (2005-04-19),

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#40 in Tochigi

#15,549 in Japan

Koyo Engineering

Forward Citations = 1

5 inventors:

Tetsu Tatsuma (1 out of 4 patents)

Shuichi Saitoh (1 out of 2 patents)

Katsuhisa Kashiwazaki (1 out of 2 patents)

4. Yoshihisa Ohko (1 out of 1 patent)

5. Akira Fujishima (1 out of 10 patents)

Please report any incorrect information to support@idiyas.com

Loading…