EI

Eiichi Ito

PE Pentax: 9 patents #192 of 761Top 30%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
TK Trw Ehrenreich Gmbh & Co. Kg: 6 patents #1 of 26Top 4%
Brother Kogyo: 6 patents #1,178 of 2,767Top 45%
RC Ricoh Imaging Company: 5 patents #4 of 67Top 6%
HI Hitachi: 5 patents #7,555 of 28,497Top 30%
Yamaha Motor: 4 patents #461 of 2,310Top 20%
PE Pentax: 3 patents #145 of 396Top 40%
HO Hoya: 2 patents #523 of 1,290Top 45%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
KC Kowa Company: 1 patents #310 of 562Top 60%
KS Kobe Steel: 1 patents #857 of 2,031Top 45%
AK Asahi Kogaku Kabushiki Kaisha: 1 patents #9 of 73Top 15%
Overall (All Time): #49,378 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 51–53 of 53 patents

Patent #TitleCo-InventorsDate
4615638 Ball joint — 1986-10-07
4577989 Ball joint — 1986-03-25
4564307 Ball joint — 1986-01-14