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:
Aug. 23, 2011
Filed:
Oct. 24, 2006
Yasuo Onodera, Chiyoda-ku, JP;
Tatsushi Sato, Chiyoda-ku, JP;
Takashi Hashimoto, Chiyoda-ku, JP;
Hisashi Yamada, Chiyoda-ku, JP;
Koichiro Hattori, Chiyoda-ku, JP;
Yoshikazu Ukai, Chiyoda-ku, JP;
Yasuo Onodera, Chiyoda-ku, JP;
Tatsushi Sato, Chiyoda-ku, JP;
Takashi Hashimoto, Chiyoda-ku, JP;
Hisashi Yamada, Chiyoda-ku, JP;
Koichiro Hattori, Chiyoda-ku, JP;
Yoshikazu Ukai, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A machining-energy calculating unit accumulates a discharge current value for each discharge position to calculate a machining energy in a certain time period from the present time to the past time. An energy-distribution changing unit determines the presence or absence of imbalance in the energy by obtaining a machining energy distribution in an up-down direction of the machining gap based on the machining energy, and when there is imbalance, the energy-distribution changing unit produces a new open/close pattern in which a machining energy distribution that eliminates the imbalance. Power feeding is then performed based on the new open/close pattern.