Inkjet head, inkjet recording apparatus, liquid droplet ejecting apparatus, and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8454133
APP PUB NO 20120236083A1
SERIAL NO

13422136

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An inkjet head is disclosed. In the inkjet head a vibrating plate is formed on a liquid chamber substrate on which multiple dedicated liquid chambers are aligned; a first insulating film and a second insulating film are formed between a dedicated electrode wiring and a lower electrode in an area in which the dedicated electrode wiring and the lower electrode overlap; a third insulating film and a fourth insulating film are stacked in an area which includes a forming area of the dedicated electrode wiring; in at least a portion of a forming area of the dedicated liquid chamber, there is provided a non-film forming area; and, in an area including a piezoelectric element forming section, either the first insulating film and the fourth insulating film are formed in the non-film forming area, or the fourth insulating film is formed in the non-film forming area.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTD3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Kanshi Kanagawa, JP 23 314
Akiyama, Yoshikazu Kanagawa, JP 39 666
Kato, Masaki Tokyo, JP 405 3629
Kuroda, Takahiko Hyogo, JP 26 327
Mizukami, Satoshi Kanagawa, JP 65 654

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