Growing community of inventors

Fukushima-ken, Japan

Tetsu Numata

Average Co-Inventor Count = 2.18

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 17

Tetsu NumataToshio Furudate (1 patent)Tetsu NumataHiromi Chiba (1 patent)Tetsu NumataKo Owada (1 patent)Tetsu NumataKoichi Morito (1 patent)Tetsu NumataShigeto Gorai (1 patent)Tetsu NumataTetsu Numata (4 patents)Toshio FurudateToshio Furudate (6 patents)Hiromi ChibaHiromi Chiba (5 patents)Ko OwadaKo Owada (2 patents)Koichi MoritoKoichi Morito (2 patents)Shigeto GoraiShigeto Gorai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Alps Electric Co., Ltd. (4 from 4,048 patents)

2. Sony Computer Entertainment Inc. (1 from 1,799 patents)


4 patents:

1. 8975542 - Pressing-type input device

2. 8115588 - Operating device and game controller

3. 6567074 - Operation apparatus using operating unit having plural push-buttons formed integrally therewith

4. 6147679 - Mouse-type input device

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as of
12/17/2025
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