Naoki Yamaguchi

PA Panasonic: 14 patents #1,670 of 21,108Top 8%

Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%

DC Dwango Co.: 7 patents #6 of 56Top 15%

The Procter & Gamble: 7 patents #1,857 of 10,133Top 20%

TC Toyo Tire & Rubber Co.: 6 patents #57 of 499Top 15%

NC Nhk Spring Co.: 5 patents #150 of 1,116Top 15%

MC Murata Manufacturing Co.: 5 patents #1,480 of 5,295Top 30%

KT Kabushiki Kaisha Toshiba: 5 patents #8,011 of 21,451Top 40%

TO Toyota: 4 patents #6,703 of 26,838Top 25%

MC Minebea Co.: 3 patents #186 of 736Top 30%

JS Jfe Steel: 3 patents #450 of 1,401Top 35%

Kawasaki: 3 patents #725 of 2,943Top 25%

TC Toyoda Gosei Co.: 3 patents #706 of 2,296Top 35%

Aisin Seiki Kabushiki Kaisha: 2 patents #1,427 of 3,782Top 40%

TI Tokai Rubber Industries: 2 patents #181 of 557Top 35%

NE Newfrey: 1 patents #263 of 476Top 60%

NA Nabco: 1 patents #31 of 74Top 45%

Bridgestone: 1 patents #1,586 of 2,860Top 60%

Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%

FU Fujinon: 1 patents #170 of 339Top 55%

WB Westinghouse Air Brake: 1 patents #129 of 220Top 60%

Canon: 1 patents #14,899 of 19,416Top 80%

FU Fujifilm: 1 patents #3,076 of 4,519Top 70%

FA Fanuc: 1 patents #1,202 of 1,735Top 70%

NC Nichiman Co.: 1 patents #35 of 81Top 45%

📍 Kiyosu, JP: #3 of 413 inventorsTop 1%

Overall (All Time): #24,240 of 4,157,543Top 1%

Patents All Time

Issued Patents All Time

Showing 76–77 of 77 patents

Patent #	Title	Co-Inventors	Date
5775367	Solenoid valve control device	Osamu Akamatsu	1998-07-07
4986756	Artistic toy	—	1991-01-22