Yoshihiko Sugiyama

Sumitomo Electric Industries: 16 patents #1,466 of 21,551Top 7%

KT Kabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%

SI Sumitomo Light Metal Industries: 4 patents #29 of 254Top 15%

TK Toshiba Tec Kabushiki Kaisha: 3 patents #733 of 1,664Top 45%

SC Sumitomo Precision Products Co.: 2 patents #43 of 199Top 25%

KC Kyodo Oxygen Co.: 1 patents #4 of 10Top 40%

TL The Victaulic Company Of Japan Limited: 1 patents #4 of 9Top 45%

NK Nihon Kohden: 1 patents #238 of 467Top 55%

Overall (All Time): #155,180 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #	Title	Co-Inventors	Date
D266254	Photocopying machine	Shuzo Horikoshi, Ken Kawamura, Yoshihiko Kawakami, Teruo Kuriyagawa, Makoto Matsumura +2 more	1982-09-21