Patents Assigned to Nippon Tokushu Kento Co., Ltd.
  • Patent number: 6322424
    Abstract: Providing an electrolytic integrated polishing method for metal workpieces using a special abrasive material which leaves no residual abrasive grains on surfaces of soft metals such as aluminium, and the like, and allows high-precision abrasion for optimal surface treatments such as an anodized aluminium finish at the next process. The electrolytic integrated polishing device performs rough abrasion and medium abrasion processes to the inner surface of an aluminium cylindrical workpiece by an elastic grindstone. Thereafter, the electrolytic integrated polishing device uses a sheet-form abrasive material for finishing abrasion.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: November 27, 2001
    Assignees: Nissin Unyu Kogyo Co., Ltd., Nippon Tokushu Kento Co., Ltd.
    Inventor: Kazuo Akagi