Kenji Itoh

SL Semiconductor Energy Laboratory: 41 patents #230 of 1,113Top 25%

Mitsubishi Electric: 20 patents #993 of 25,717Top 4%

Sharp Kabushiki Kaisha: 10 patents #1,673 of 10,731Top 20%

HI Hitachi: 9 patents #4,653 of 28,497Top 20%

SO Sony: 8 patents #5,352 of 25,231Top 25%

IBM: 5 patents #18,733 of 70,183Top 30%

DE Denso: 4 patents #3,129 of 11,792Top 30%

VJ Victor Company Of Japan: 4 patents #304 of 1,489Top 25%

SC Sumitomo Chemical: 3 patents #1,386 of 4,033Top 35%

Canon: 3 patents #11,241 of 19,416Top 60%

NE Nec: 2 patents #5,510 of 14,502Top 40%

NL Noritake Co., Limited: 2 patents #71 of 334Top 25%

HG HGST: 2 patents #738 of 1,677Top 45%

Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%

TO Toyota: 1 patents #15,335 of 26,838Top 60%

DC Daifuku Co.: 1 patents #230 of 509Top 50%

HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%

KS Kawasaki Steel: 1 patents #889 of 1,922Top 50%

KC Konishiroku Photo Industry Co.: 1 patents #532 of 894Top 60%

Ricoh Company: 1 patents #6,936 of 9,818Top 75%

SC Shin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%

SL Shiseido Company, Limited: 1 patents #543 of 1,112Top 50%

YC Yamamoto Kagaku Gosei Co.: 1 patents #5 of 12Top 45%

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

Overall (All Time): #8,932 of 4,157,543Top 1%

126

Patents All Time

Issued Patents All Time

Showing 126–126 of 126 patents

Patent #	Title	Co-Inventors	Date
4316026	Process for the preparation of copper quinolinate	Yoshihiro Hatano, Seishi Ikegami, Mansuke Matsumoto	1982-02-16