Did you just stumble upon a file that has a digital signature from Oki Data Corporation? If that's the case, please read on.
You will probably see Oki Data Corporation when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Oki Data Corporation certificate with the following procedure:
Here is a screenshot of a file that has been digitally signed by Oki Data Corporation:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Oki Data Corporation and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can examine all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also see the address for Oki Data Corporation, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Oki Data Corporation certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Oki Data Corporation files I've gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Oki Data Corporation files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Oki Data Corporation.
| Detection Ratio | File Name |
|---|---|
| Not available | OKJ3H04N103_tcm3-138481.exe |
| Not available | MB4x1LPMPS47x_ScannerDriver_101.exe |
The analysis is based on certificates with the following serial numbers: