1
Yuji Nagao, Keiji Yano: Gaming system that pays out a progressive bonus using a lottery. Sega Enterprises, Dickstein Shapiro Morin & Oshinsky, July 8, 1997: US05645486 (495 worldwide citation)

A progressive gaming system pays out a progressively increasing bonus to a player who wins a game with a predetermined winning combination. The progressive gaming system includes a plurality of gaming controllers which detect when a player gets one of a plurality of predetermined winning combination ...


2
Yuji Nagao: Slot machine with payout modifying symbols. Sigma Incorporated, Stevens Davis Miller & Mosher, June 13, 1995: US05423539 (410 worldwide citation)

This invention relates a game machine in which a combination of characters stopped along a winning line is judged based on a winning table showing winning combinations of characters to determine the presence of a win and a payment of coins. In this game machine, a substitutable character can be used ...


3
Yuji Nagao, Yoshihiro Kinoshita: Clot machine. Sigma Incorporated, Stevens Davis Miller & Mosher, May 11, 1993: US05209479 (238 worldwide citation)

The present invention provides a slot machine for determining winning or losing by selecting predetermined symbols from symbol trains arranged on X reels, in accordance with a random number, in which the X reels have symbol trains of different numbers of symbols arranged thereon.


4
Yuji Nagao: Slot machine. Sigma Incorporated, Beveridge DeGrandi & Weilacher, September 24, 1991: US05050881 (80 worldwide citation)

This invention relates to a slot machine which comprises random number generating unit and X reels each having a plurality of symbols. All the combinations of the symbols among the reels made when one symbol of each reel is selected are identified by respective numbers, and one random number is gene ...


5
Yuji Nagao, Takanori Akiyama, Naoki Kawajiri, Seiji Hayashi, Susumu Murata, Koji Yamaguchi, Yuji Ikeda, Mitsuru Todaiji, Yasuhiro Takagi, Shunichi Nakamura, Keiji Yano, Muneoki Kamata, Shingo Kataoka, Koji Osuka: Race game device. Sega Enterprises, Dickstein Shapiro Morin & Oshinsky, May 28, 2002: US06394898 (19 worldwide citation)

A loop track for race horses is disposed at the center of a horse race game device. Twelve race horses run on the track. A gate is disposed in a paddock in the track. The gate is advanced to a start point of the track from the paddock. Twelve satellites are disposed on three sides of the track. A la ...


6
Yuji Nagao, Ryuji Yamamoto: Semiconductive resin composition. Showa Denko, Sughrue Mion PLLC, February 18, 2014: US08653177 (3 worldwide citation)

The invention relates to a semiconductive resin composition containing at least two kinds of conductive fillers, wherein the difference in threshold values of percolation between at least two kinds of the conductive fillers is within a range of 10 to 50 mass %. The semiconductive resin composition o ...


7
Yuji Nagao, Ryuji Yamamoto, Toshio Morita: Electrically conducting polymer and production method and use thereof. Showa Denko, Sughrue Mion PLLC, August 4, 2009: US07569161 (1 worldwide citation)

The invention provides a production method of a conductive polymer, comprising a step of blending a polymer in a state of a melt viscosity of 600 Pa·s or less at a shear rate of 100 s−1 with a vapor grown carbon fiber in 1 to 15 mass at a mixing energy of 1,000 mJ/m3 or less, and a conductive polyme ...


8
Yuji Nagao, Ryuji Yamamoto, Satoshi Miyake: Heat-resistant sliding resin composition, production process and use therof. Showa Denko, Sughrue Mion PLLC, February 1, 2011: US07879941

The invention relates to a heat-resistant sliding resin composition, comprising a vapor carbon fiber having a specific surface area of 10 to 50 m2/g, a mean aspect ratio of 20 to 500 and a mean fiber diameter of 50 to 200 nm and a synthetic resin, wherein a heat deflection temperature under high loa ...


9
Yuji Nagao, Takanori Akiyama, Naoki Kawajiri, Seiji Hayashi, Susumu Murata, Koji Yamaguchi, Yuji Ikeda, Mitsuru Todaiji, Yasuhiro Takagi, Shunichi Nakamura, Keiji Yano, Muneoki Kamata, Shingo Kataoka, Koji Osuka: Race game device. Sega Enterprises, Dickstein Shapiro, September 25, 2007: US07273414

A loop track for racing objects is disposed at the center of a race game device, for example for a simulated horse race. A plurality of racing objects, such as race horses, run on the track. The X- and Y-directional positions of the race horses are detected by a separable position detecting means un ...


10
Yuji Nagao, Ryuji Yamamoto: Carbon-based electrically conducting filler, composition and use thereof. Sughrue Mion Pllc, August 9, 2007: US20070181855-A1

A conductive composition comprising a vapor grown carbon fiber having an aspect ratio of 40 to 1,000, preferably 65 to 1,000, and a specific surface area or fiber diameter of the fiber within a predetermined range, and a preferable peak intensity ratio (I0=I1360/I1580) of 0.1 to 1, wherein I1580 rep ...