Assignee
KOYAMA TATSUYA
JP5 patents
Top patents by PatentIndex Score
US9506137B2Nov 29, 2016
Gas-carburized steel part excellent in surface fatigue strength, steel product for gas carburizing, and manufacturing method of gas-carburized steel part
KOYAMA TATSUYA2 citations61
US9122218B2Sep 1, 2015
Image forming device capable of detecting abnormality in temperature sensing member
KOYAMA TATSUYA2 citations61
US8983351B2Mar 17, 2015
Fixing device
KOYAMA TATSUYA0 citations40
US8965225B2Feb 24, 2015
Image-forming apparatus setting upper limit of electric power based on detection result of sheet detector
KOYAMA TATSUYA0 citations40
US9031442B2May 12, 2015
Image-forming apparatus that corrects detected temperature of heating member detected by non-contact temperature sensor
KOYAMA TATSUYA0 citations39