Assignee
KUBOTA MASAO
12 patents
Top patents by PatentIndex Score
US5314272AMay 24, 1994
Drill
KUBOTA MASAO23 citations92
US5078554AJan 7, 1992
Drill
KUBOTA MASAO35 citations92
US4688972AAug 25, 1987
Twist drill
KUBOTA MASAO29 citations92
US4586858AMay 6, 1986
Rotary cutting tool
KUBOTA MASAO22 citations82
US5295569AMar 22, 1994
Escalator device
KUBOTA MASAO8 citations73
US5170875ADec 15, 1992
Conveyor machine
KUBOTA MASAO8 citations73
US4541756ASep 17, 1985
Revolving cutting tool
KUBOTA MASAO18 citations73
US4055711AOct 25, 1977
Lead-acid storage battery
KUBOTA MASAO17 citations69
US9439291B2Sep 6, 2016
Photosensitive element, method for forming resist pattern, and method for producing printed circuit board
KUBOTA MASAO2 citations62
US5316719AMay 31, 1994
Apparatus for producing a substance utilizing agravic effect
KUBOTA MASAO0 citations52
US5219522AJun 15, 1993
Method of producing a substance utilizing agravic effect and an apparatus for carrying out same
KUBOTA MASAO0 citations52
US8092980B2Jan 10, 2012
Photosensitive element
KUBOTA MASAO0 citations45