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. 14, 1995
Filed:
Dec. 09, 1991
Takuro Sekiya, Yokohama, JP;
Mitsuru Shingyouchi, Yokohama, JP;
Takashi Kimura, Yokohama, JP;
Takayuki Yamaguchi, Minoo, JP;
Yoshio Watanabe, Kawasaki, JP;
Shuji Motomura, Yokohama, JP;
Eiko Suzuki, Sagamihara, JP;
Masami Kadonaga, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ink jet recording head assembly includes: a base member having a plurality of enclosures, a top of each of the enclosures having an opening; a mechanism for supplying ink to each of the enclosures via the opening at the top thereof and for maintaining the ink at a predetermined depth; and a heater element which is provided in each of the enclosures under the ink supplied via the opening, the heater element heating the ink in each of the enclosures so that a bubble is generated in the ink; wherein an ink drop is jetted from a surface of the ink due to the bubble generated in the ink.