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:
Dec. 30, 2003
Filed:
Jul. 19, 2001
Haruyuki Matsubayashi, Shizuoka, JP;
Yukio Iimura, Shizuoka, JP;
Takashi Yamazaki, Shizuoka, JP;
Akira Kanda, Shizuoka, JP;
Takamitsu Yamashita, Shizuoka, JP;
Yutaka Yamaguchi, Shizuoka, JP;
Masamitsu Suzuki, Shizuoka, JP;
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
An electric injection molding machine capable of maintaining a quality of molded articles and capable of minimizing weight variation of molded articles. An electric injection mechanism injects molding material into a mold using an electric motor. An injection control unit and a servo driver control the motor so as to follow an injection speed reference. A compensation unit compensates the injection speed reference based on characteristics of a hydraulic drive system so that fluctuation of injection speed with respect to the injection pressure approximate the fluctuation characteristics of a hydraulic injection mechanism.