Inventor
Yuji Nagao
Inventor
Tokyo, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G07Fprimary
G07FCoin-freed or like apparatus25%
A63FCard, board, or roulette games19%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients19%
C08JWorking-up13%
C08LCompositions of macromolecular compounds6%
F16CShafts6%
H01BCables6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
8,653,177'Semiconductive resin composition'20147,879,941'Heat-resistant sliding resin composition, production process and use therof'20117,569,161'Electrically conducting polymer and production method and use thereof'20097,273,414'Race game device'20076,394,898'Race game device'20025,645,486'Gaming system that pays out a progressive bonus using a lottery'19975,423,539'Slot machine with payout modifying symbols'19955,209,479'Clot machine'19935,050,881'Slot machine'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1995Patents assigned to SIGMA INC (3)· patent assignee history
1991–2014Based in Tokyo, JP· patent location history
1997–2007Patents assigned to SEGA ENTERPRISES KK (3)· patent assignee history
2009–2014Patents assigned to SHOWA DENKO KK (3)· patent assignee history
2009–2011Based in Kanagawa, JP· patent location history
2014Patents assigned to NAGAO YUJI (1)· patent assignee history
2014Patents assigned to YAMAMOTO RYUJI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEGA ENTERPRISES KK | 3 | 1997–2007 |
| SHOWA DENKO KK | 3 | 2009–2014 |
| SIGMA INC | 3 | 1991–1995 |
| NAGAO YUJIself | 1 | 2014 |
| YAMAMOTO RYUJI | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 7 | 1991–2014 |
| Kanagawa, JP | 2 | 2009–2011 |