Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1996-11-25
2000-02-01
Barlow, John
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 71, B41J 2045
Patent
active
060194588
ABSTRACT:
An ink-jet printing head comprises: a pressurizing chamber substrate having first and second sides opposing each other; a plurality of pressurizing chambers formed on the first side of the pressurizing chamber substrate; channels formed on the second side of the pressuring chamber substrate to be opposite to the pressuring chambers, respectively; oscillating plate films for pressurizing ink within the respective pressurizing chambers; and piezoelectric thin-film elements, each having upper and lower electrodes and a piezoelectric film sandwiched between the upper and lower electrodes, the piezoelectric thin-film being formed in the channel, wherein at least the upper electrode is formed to have a narrower width than that of the pressurizing chamber. And a method for producing the ink-jet head.
REFERENCES:
patent: 4312008 (1982-01-01), Taub et al.
patent: 5265315 (1993-11-01), Hoisington et al.
patent: 5396042 (1995-03-01), Ishida et al.
patent: 5534900 (1996-07-01), Ohno et al.
patent: 5754205 (1998-05-01), Miyata et al.
patent: 5896150 (1999-04-01), Kobayashi et al.
Hashizume Tsutomu
Nishiwaki Tsutomu
Shimada Masato
Takahashi Tetsushi
Barlow John
Dickens C.
Seiko Epson Corporation
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