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OOHASHI RYOJI

JP3 patents

Top patents by PatentIndex Score

US8608276B2Dec 17, 2013

Liquid discharge head and ink jet recording apparatus including liquid discharge head

OOHASHI RYOJI34 citations90
US8070263B2Dec 6, 2011

Printing head substrate, ink jet printing head and ink jet printing apparatus with substrate temperature detecting element

OOHASHI RYOJI17 citations82
US8109593B2Feb 7, 2012

Substrate for inkjet head and inkjet head using the same

OOHASHI RYOJI1 citations51