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Operation Device

  • US 20100302140A1
  • Filed: 05/21/2010
  • Published: 12/02/2010
  • Est. Priority Date: 06/01/2009
  • Status: Active Grant
First Claim
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1. An operation device to be held by a user with one hand when used, comprising:

  • a recessed portion formed at a position at which at least one of a thumb and fingers is placed when the user holds the operation device; and

    a first button which is disposed at a bottom of the recessed portion and has a top surface adjacent to a rim portion forming a side surface of the recessed portion.

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