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:
Jan. 02, 2001
Filed:
Aug. 25, 1997
Seiichiro Karita, Yokohama, JP;
Masaki Inaba, Kawasaki, JP;
Yutaka Koizumi, Yokohama, JP;
Tsuyoshi Orikasa, Musashimurayama, JP;
Toshio Kashino, Chigasaki, JP;
Shuji Koyama, Kawasaki, JP;
Haruhiko Terai, Yokohama, JP;
Kimiyuki Hayasaki, Yokohama, JP;
Akira Goto, Yokohama, JP;
Kouichi Omata, Kawasaki, JP;
Takayuki Ono, Kawasaki, JP;
Kiyomi Aono, Kawasaki, JP;
Hiroki Tajima, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording head includes a plurality of ink ejection outlets, a first member having a plurality of grooves in fluid communication with the ejection outlets, respectively, a second member having a plurality of energy generating elements for producing energy for ejecting ink in the grooves through the ejection outlets, and a clamping unit for clamping the first member with the second member to constitute ink passages with the grooves, wherein the clamping unit has a plurality of pressure regulating mechanism pressure regulating mechanisms, which are independently operable.