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US 12,617,204 B2Granted
Coating head
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKentaro Kumazawa, Shuhei Nakatani, Kazunobu Irie, Futoshi Ohtsuka, Yousuke Toyofuku
Life of this patent
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Abstract
A coating head includes: a plurality of nozzles; a plurality of pressure chambers communicating with the plurality of nozzles; an ink flow path communicating with the plurality of pressure chambers; and a coating layer that is at least partially provided on liquid contact surfaces of the plurality of nozzles, the plurality of pressure chambers, and the ink flow path.
Claims11
A coating head comprising:
- a plurality of nozzles;
- a plurality of pressure chambers communicating with the plurality of nozzles;
- an ink flow path communicating with the plurality of pressure chambers;
- and
- a coating layer that is at least partially provided on liquid contact surfaces of the plurality of nozzles, the plurality of pressure chambers, and the ink flow path,
- wherein the coating head is formed by stacking and bonding a nozzle plate, a pressure chamber plate, and a vibration plate,
- the coating head further comprising:
- a first adhesive layer interposed between the nozzle plate and the pressure chamber plate;
- and
- a second adhesive layer interposed between the pressure chamber plate and the vibration plate,
- wherein the first adhesive layer and the second adhesive layer form a part of the liquid contact surfaces, and are covered with the coating layer, and
- wherein the coating layer includes protruding portions at locations corresponding to the first adhesive layer and the second adhesive layer, the protruding portions of the coating layer being thicker than other portions of the coating layer, and protruding from the coating layer in a direction away from the first adhesive layer and the second adhesive layer.
9 more elements
Dependencies are inferred from the claim text.