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. 20, 2009
Filed:
Jun. 17, 2003
Kinshiro Naito, Kanagawa, JP;
Masayuki Shimizu, Kanagawa, JP;
Shigeru Endo, Kanagawa, JP;
Takashi Matsumoto, Kanagawa, JP;
Hiroshi Nakai, Kanagawa, JP;
Hiroyuki Kobayashi, Kanagawa, JP;
Kinshiro Naito, Kanagawa, JP;
Masayuki Shimizu, Kanagawa, JP;
Shigeru Endo, Kanagawa, JP;
Takashi Matsumoto, Kanagawa, JP;
Hiroshi Nakai, Kanagawa, JP;
Hiroyuki Kobayashi, Kanagawa, JP;
Amada Company, Limited, Kanagawa, JP;
Abstract
A die body includes a die hole for punching a work. A core, including a discharge hole, which is in communication with the die hole, is provided in the die body. The core is provided with a plurality of fluid injection ports through which fluid is injected downward of the discharge hole. The die body is provided with inflow ports through which compressed fluid flows into the fluid injection ports. The core is made of resin. The discharge hole is tapered toward its upper side. An outer peripheral surface of the die body is provided with a peripheral groove which is in communication with the inflow ports.