Patents by Inventor Kunihiro Saita

Kunihiro Saita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Working apparatus
    Patent number: 6722956
    Abstract: A finishing grindstone member (20) is fixed to a spindle (10) by a bolt. In the spindle (10), there is formed a tool mounting portion (25) into which a rough grindstone member can be mounted. Into the tool mounting portion (25), there can be mounted not only the rough grindstone member but also a cover member (36). After a silicone wafer is roughly ground using the rough grindstone member, when finish grinding the silicone wafer using the finishing grindstone member (20), the cover member (36) is mounted onto the tool mounting portion (25) to thereby prevent the tool mounting portion (25) from being soiled.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: April 20, 2004
    Assignee: Nippei Toyama Corporation
    Inventors: Tetsuo Okuyama, Shirou Murai, Kunihiro Saita, Toyotaka Wada, Tomoyuki Kawatsu
  • Working apparatus
    Publication number: 20010006880
    Abstract: A finishing grindstone member 20 is fixed to a spindle 10 by a bolt. In the spindle 10, there is formed a tool mounting portion 25 into which a rough grindstone member can be mounted. Into the tool mounting portion 25, there can be mounted not only the rough grindstone member but also a cover member 36. After a silicone wafer is roughly ground using the rough grindstone member, when finish grinding the silicone wafer using the finishing grindstone member 20, the cover member 36 is mounted onto the tool mounting portion 25 to thereby prevent the tool mounting portion 25 from being soiled.
    Type: Application
    Filed: December 27, 2000
    Publication date: July 5, 2001
    Inventors: Tetsuo Okuyama, Shirou Murai, Kunihiro Saita, Toyotaka Wada, Tomoyuki Kawatsu