Inventor
DOYAMA YOSHIAKI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “DOYAMA YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
11 patentsUS5555894ASep 17, 1996
Force sensation exhibiting device, data input device and data input equipment
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD165 citations98
US6121736ASep 19, 2000
Control apparatus for motor, and motor unit having the control apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD151 citations97
US6320772B1Nov 20, 2001
Converter circuit having control means with capability to short-circuit converter output
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD75 citations95
US6232730B1May 15, 2001
Brushless motor driving circuit and a method of controlling the brushless motor driving circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations92
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
US5247806ASep 28, 1993
Multi-system air conditioner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations92
US5222371AJun 29, 1993
Air conditioner of multichamber type
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US4794472ADec 27, 1988
Video tape reproducing apparatus with a processor that time-shares different operations
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US4791507ADec 13, 1988
Apparatus for reproducing information at variable speeds from a magnetic tape
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations74
US4764819AAug 16, 1988
Method and apparatus for helical scan type magnetic recording and reproducing with a rotary magnetic head
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52