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:
Mar. 14, 2005
Filed:
Aug. 23, 2001
Akira Goto, Yokohama, JP;
Masaki Inaba, Kawasaki, JP;
Yutaka Koizumi, Yokohama, JP;
Tsuyoshi Orikasa, Musashimurayama, JP;
Toshio Kashino, Fujisawa, JP;
Seiichiro Karita, Yokohama, JP;
Shuji Koyama, Kawasaki, JP;
Haruhiko Terai, Yokohama, JP;
Kimiyuki Hayasaki, Yokohama, JP;
Kouichi Omata, Kawasaki, JP;
Kiyomitsu Kudo, Yokohama, JP;
Takayuki Ono, Kawasaki, JP;
Shin Ishimatsu, Yokohama, JP;
Akira Goto, Yokohama, JP;
Masaki Inaba, Kawasaki, JP;
Yutaka Koizumi, Yokohama, JP;
Tsuyoshi Orikasa, Musashimurayama, JP;
Toshio Kashino, Fujisawa, JP;
Seiichiro Karita, Yokohama, JP;
Shuji Koyama, Kawasaki, JP;
Haruhiko Terai, Yokohama, JP;
Kimiyuki Hayasaki, Yokohama, JP;
Kouichi Omata, Kawasaki, JP;
Kiyomitsu Kudo, Yokohama, JP;
Takayuki Ono, Kawasaki, JP;
Shin Ishimatsu, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A common recess, grooves, and common recess and/or column members in the grooves are formed on a base board at the same time, and such board is made a second base board, which is coupled to a first base board on which elements for liquid discharging energy are formed; hence obtaining an ink jet recording head provided with a filter unit in an arbitrary position in the region formed by the ink paths and the common liquid chamber. The filter unit can be processed by a single processing in the ink paths and/or the common liquid chamber to make it possible to prevent disabled discharge from taking place due to dust particles intermingled at the time of head manufacture. In this way, the discharging stability is enhanced, making a high-speed printing possible. A workpiece is efficiently processed by a single processing which is performed to process a three-dimensional configuration with respect to the direction in which the laser beam is irradiated.