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:
Nov. 12, 1991
Filed:
Jul. 19, 1989
Masashi Takahashi, Kanagawa, JP;
Yuka Nakamura, Kanagawa, JP;
Sadao Kajiura, Kanagawa, JP;
Koichi Tsunemi, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A method for forming a pigment containing film on a work-piece includes the steps of circulating coating liquid containing pigment through a circulation path, and pulverizing the pigment to disperse the pigment in the coating liquid during the circulating step. The method further includes the steps of dipping a work-piece in the coating liquid during the circulating step, and raising the work-piece from the coating liquid. An apparatus for forming a pigment containing film on a work-piece includes a coating tank, having an inflow portion and an overflow portion, for holding coating liquid containing pigment, and a circulation path having one end connected to the inflow portion of the coating tank and the other end connected to the overflow portion of the coating tank, for circulating the coating liquid. In the circulation path, a pulverizing device is arranged for pulverizing the pigment to disperse the pigment in the coating liquid and to cause the coating liquid to flow in the circulation path. The apparatus further includes a work-piece mounting device for dipping a work-piece in the coating liquid held in the coating tank and raising the work-piece from the coating liquid to form a pigment containing film on the work-piece during the circulating of the coating liquid along the circulation path. A coated medium includes a work-piece, and a film coated on the work-piece by dipping the work-piece in circulated coating liquid in which pigment has been dispersed using an impact pulverizing disperser.