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:
May. 20, 2014
Filed:
Dec. 20, 2007
Satoshi Takami, Saitama, JP;
Kunikiyo Kaneko, Saitama, JP;
Hiroto Watanabe, Tokyo, JP;
Masahiko Sasaki, Chiba, JP;
Eiji Tozawa, Saitama, JP;
Satoshi Takami, Saitama, JP;
Kunikiyo Kaneko, Saitama, JP;
Hiroto Watanabe, Tokyo, JP;
Masahiko Sasaki, Chiba, JP;
Eiji Tozawa, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A light-source driver for a light-source, detachable from an endoscope body includes a first switch, a pilot lamp, a warning lamp, a second switch, and a light switcher. The first switch switches between the On-state and Off-state in connection with the attachment and detachment of the light-source to the endoscope body. The pilot lamp indicates that the illumination light source is energized. The warning lamp indicates that the output voltage of a battery has dropped below a predetermined value. The second switch switches the warning lamp between the On-state and Off-state in connection with the On-state and Off-state of the first switch. The light switcher switches the pilot lamp to the Off-state and enables the second switch when the second switch is set to the On-state and the output voltage has declined to or below the predetermined value.