Assignee
YOKOYAMA YOSHIMASA
JP·3 granted patents·68 citations·filing 1977–2012
Top patents by PatentIndex Score
3 records- 0180US4669986AWriting training deviceYOKOYAMA YOSHIMASA·Filed 1985·Granted Jun 2, 1987·49 cites·8 claims
- 0261US4126958AFumigator for mosquito coilYOKOYAMA YOSHIMASA·Filed 1977·Granted Nov 28, 1978·18 cites·4 claims
- 0360US9020260B2Image processing apparatus, image processing method and recording mediumYOKOYAMA YOSHIMASA·Filed 2012·Granted Apr 28, 2015·1 cites·7 claims
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