US Patent No. 10,239,321

LIQUID EJECTION HEAD AND METHOD FOR MANUFACTURING FLOW PASSAGE MEMBER OF LIQUID EJECTION HEAD


Patent No. 10,239,321
Issue Date March 26, 2019
Title Liquid Ejection Head And Method For Manufacturing Flow Passage Member Of Liquid Ejection Head
Inventorship Isao Imamura, Kawasaki (JP)
Masashi Miyagawa, Yokohama (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 10,239,321

1. A liquid ejection head for ejecting a liquid, comprising:a flow passage member, which is composed of a first resin and which is provided with a flow passage configured to come into contact with the liquid;
a liquid supply member bonded to the flow passage member; and
a plurality of resin-coated members having a core-sheath structure composed of a filler constituting an inner core and a second resin constituting an outer core,
wherein the flow passage member comprises the plurality of the resin-coated members.