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US 6,270,202 B1Granted
Liquid jetting apparatus having a piezoelectric drive element directly bonded to a casing
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsAkihiko Namba, Yoshihiro Tomita, Tetsuyoshi Ogura, Osamu Kawasaki, Masato Sugimoto, Katsumi Imada, Atsushi Komatsu, Kazuo Eda
Life of this patent
Estimating the term…
Abstract
A liquid jetting apparatus has a concave casing having an opened flat face, and a piezoelectric drive element for at least partly sealing the opened flat face to form a liquid reservoir to store a liquid, such as ink. The reservoir has a liquid injection port for injecting a liquid and a liquid jet port for jetting the stored liquid. The piezoelectric drive element is directly bonded to the open flat face.
Claims19
A liquid jetting apparatus comprising:
- a concave casing having an open flat face;
- a piezoelectric drive element directly bonded to said open flat face of said concave casing so as to form an interatomic bond between atoms of said open flat face and atoms of said piezoelectric drive element such that hydroxyl groups on said open flat face form a hydrogen bond with hydroxyl groups on said piezoelectric drive element;
- and
- a liquid reservoir for storing a liquid, said liquid reservoir being formed between said concave casing and said piezoelectric drive element, said liquid reservoir having a liquid injection port for allowing a liquid to be injected into said liquid reservoir and having a liquid jet port for allowing stored liquid to be jetted from said liquid reservoir.
1 more element
A liquid jetting apparatus comprising:
- a concave casing having a bottom face and an open flat face;
- a support plate directly bonded to said open flat face of said concave casing so as to form an interatomic bond between atoms of said open flat face and atoms of said support plate;
- a liquid reservoir for storing a liquid, said liquid reservoir being formed between said concave casing and said support plate, said liquid reservoir having a liquid injection port for allowing a liquid to be injected into said liquid reservoir and having a liquid jet port for allowing stored liquid to be jetted from said liquid reservoir;
- a piezoelectric drive element directly bonded to said bottom face so as to form an interatomic bond between atoms of said bottom face and atoms of said piezoelectric drive element such that hydroxyl groups on said bottom face form a hydrogen bond with hydroxyl groups on said piezoelectric drive element.
1 more element
Dependencies are inferred from the claim text.