The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2013
Filed:
Jun. 29, 2010
Tomohiko Koda, Atsugi, JP;
Kenichi Yoshimura, Kawasaki, JP;
Tomiyoshi Takano, Atsugi, JP;
Mitsuru Kawakami, Atsugi, JP;
Masami Iwama, Atsugi, JP;
Tomohiko Koda, Atsugi, JP;
Kenichi Yoshimura, Kawasaki, JP;
Tomiyoshi Takano, Atsugi, JP;
Mitsuru Kawakami, Atsugi, JP;
Masami Iwama, Atsugi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid-ejection head unit includes a head, an electric-circuit board, electronic components, and a storage tank. The head includes a frame member and ejects droplets of liquid. The electronic components are mounted on the electric-circuit board and connected to the head. The storage tank stores liquid supplied to the head. The electric-circuit board is disposed between the frame member of the head and the storage tank to form a single multi-layered structure. The electronic components of the electric-circuit board are accommodated in at least one of a first internal space defined by the frame member of the head and the electric-circuit board and a second internal space defined by the electric-circuit board and the storage tank.