18790172. LIQUID EJECTION HEAD (CANON KABUSHIKI KAISHA)
LIQUID EJECTION HEAD
Organization Name
Inventor(s)
ATSUNORI Terasaki of Kanagawa (JP)
MANABU Otsuka of Kanagawa (JP)
LIQUID EJECTION HEAD
This abstract first appeared for US patent application 18790172 titled 'LIQUID EJECTION HEAD
Original Abstract Submitted
A liquid ejection head including: a joined substrate of a first substrate and a second substrate that are layered and joined with an adhesive is used. In the liquid ejection head, the joined substrate has a liquid channel by means of which the first substrate and the second substrate communicating, on a joining position of the first and the second substrate, the adhesive is disposed at a corner part so as to form an arcuate shape convex toward the corner part on a cross section thereof, the corner part being formed at a position corresponding to the liquid channel, the corner part being formed by an end face of the first substrate, and a plane of the second substrate, and on the joining position, a protective film is provided to be continuous from the first substrate via the adhesive disposed on the corner part.