Inventor · disambiguated record
Koichi Oyamada
Also filed as: OYAMADA KOICHI
6 granted patents·132 citations·filing 1987–1991
85Inventor score
Technology areasG03G
Files withFUJI XEROX CO LTD6
Top patents by PatentIndex Score
6 records- 0194US4880719ATwo component electrophotographic developerFUJI XEROX CO LTD·Filed 1988·Granted Nov 14, 1989·64 cites·8 claims
- 0282US4933251AElectrophotographic developerFUJI XEROX CO LTD·Filed 1988·Granted Jun 12, 1990·24 cites·7 claims
- 0371US5032483AElectrophotographic red tonerFUJI XEROX CO LTD·Filed 1989·Granted Jul 16, 1991·16 cites·5 claims
- 0470US4837100AElectrophotographic developer containing positively chargeable tonerFUJI XEROX CO LTD·Filed 1987·Granted Jun 6, 1989·16 cites·13 claims
- 0551US4965162AElectrophotographic developer containing tin oxideFUJI XEROX CO LTD·Filed 1989·Granted Oct 23, 1990·8 cites·6 claims
- 0637US5252421AElectrophotographic tonerFUJI XEROX CO LTD·Filed 1991·Granted Oct 12, 1993·4 cites·9 claims
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