Inventor
MATSUI KEIZO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “MATSUI KEIZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
7 patentsUS5555894ASep 17, 1996
Force sensation exhibiting device, data input device and data input equipment
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD165 citations98
US6822417B2Nov 23, 2004
Synchronous reluctance motor control device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD74 citations97
US6512341B2Jan 28, 2003
Apparatus and method for driving a brushless motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD57 citations96
US5778885AJul 14, 1998
Force sensation exhibiting device data input device and data input equipment
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations92
US5646499AJul 8, 1997
Inverter control apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD75 citations92
US6278910B1Aug 21, 2001
Compressor driving apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations87
US7669430B2Mar 2, 2010
Heat pump apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84
FUJI PHOTO FILM CO LTD
4 patentsUS4830508AMay 16, 1989
Controlling method and a measuring mixer for liquids and powders
FUJI PHOTO FILM CO LTD153 citations98
US4976377ADec 11, 1990
Liquid and powder measuring apparatus
FUJI PHOTO FILM CO LTD50 citations92
US4880142ANov 14, 1989
Powder weighing mixer and method thereof
FUJI PHOTO FILM CO LTD51 citations92
US4872763AOct 10, 1989
Method of and apparatus for measuring liquid
FUJI PHOTO FILM CO LTD31 citations92