Inventor
KOYAMA HARUO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA HARUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITA INDUSTRIAL CO LTD
7 patentsUS4500897AFeb 19, 1985
Heat-sensitive black recording element
MITA INDUSTRIAL CO LTD26 citations82
US4607942AAug 26, 1986
Electrostatic copying apparatus
MITA INDUSTRIAL CO LTD8 citations73
US5150156ASep 22, 1992
Electrostatic image recording machine capable of multiple gradations
MITA INDUSTRIAL CO LTD2 citations62
US4416964ANov 22, 1983
Dry magnetic developer containing a non-pulverizing agglumerate of cubic magnetite particles
MITA INDUSTRIAL CO LTD3 citations62
US4407923AOct 4, 1983
One component magnetic developer
MITA INDUSTRIAL CO LTD2 citations62
US5834634ANov 10, 1998
Method and apparatus for measuring the toner concentration and the amount of electric charge of a two-component developing agent
MITA INDUSTRIAL CO LTD3 citations60
US4502067AFeb 26, 1985
Heat-sensitive black recording material
MITA INDUSTRIAL CO LTD1 citations52
BRIDGESTONE CORP
3 patentsKYOCERA MITA CORP
3 patentsUS7466952B2Dec 16, 2008
Image-forming machine fixing device with a nipping region having a pressure distribution
KYOCERA MITA CORP7 citations71
US7787801B2Aug 31, 2010
Image forming apparatus with shield member
KYOCERA MITA CORP2 citations62
US7860444B2Dec 28, 2010
Image-forming machine fixing device with a nipping region having a pressure distribution
KYOCERA MITA CORP1 citations49