Inventor
Masumi Sakamoto
Inventor
Tokyo, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G07Fprimary
G07FCoin-freed or like apparatus75%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein25%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010Patents assigned to FUJIFILM CORP (1)· patent assignee history
2010Based in Odawara, JP· patent location history
2017–2018Patents assigned to ARUZE GAMING AMERICA INC (3)· patent assignee history
2017–2018Patents assigned to UNIVERSAL ENTERTAINMENT CORP (3)· patent assignee history
2017–2018Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ARUZE GAMING AMERICA INC | 3 | 2017–2018 |
| UNIVERSAL ENTERTAINMENT CORP | 3 | 2017–2018 |
| FUJIFILM CORP | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 3 | 2017–2018 |
| Odawara, JP | 1 | 2010 |