Photomultiplier tube

- Hamamatsu Photonics K.K.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front view of a photomultiplier tube for use in a measuring device of an oil drilling rig.

FIG. 2 is a rear view of the photomultiplier tube.

FIG. 3 is a top view of the photomultiplier tube.

FIG. 4 is a bottom view of the photomultiplier tube.

FIG. 5 is a right side view of the photomultiplier tube.

FIG. 6 is a left side view of the photomultiplier tube.

FIG. 7 is a perspective view showing the left side of the photomultiplier tube; and,

FIG. 8 is a perspective view showing the right side of the photomultiplier tube.

Claims

The ornamental design for a photomultiplier tube, as shown and described.

Referenced Cited
U.S. Patent Documents
4426596 January 17, 1984 Butterwick
4492977 January 8, 1985 Tsuda et al.
5841231 November 24, 1998 Kimura et al.
6585550 July 1, 2003 Rodriguez et al.
7189956 March 13, 2007 Shimoi et al.
Other references
  • “The Chunichi Shimbun,” Nov. 12, 2013, one page [newspaper article in Japanese language].
Patent History
Patent number: D729640
Type: Grant
Filed: Jan 22, 2014
Date of Patent: May 19, 2015
Assignee: Hamamatsu Photonics K.K. (Hamamatsu-shi, Shizuoka)
Inventors: Tomohiro Ishizu (Hamamatsu), Tetsuya Fujita (Hamamatsu), Takahiro Suzuki (Hamamatsu)
Primary Examiner: Antoine D Davis
Application Number: 29/479,959