Growing community of inventors

Tokyo, Japan

Takaaki Matsushima

Average Co-Inventor Count = 1.11

ph-index = 2

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 = 13

Takaaki MatsushimaSadahiko Yokoyama (1 patent)Takaaki MatsushimaTakaaki Matsushima (5 patents)Sadahiko YokoyamaSadahiko Yokoyama (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nec Corporation (4 from 35,689 patents)

2. Nec Engineering, Ltd. (1 from 37 patents)


5 patents:

1. 6522149 - Method and apparatus for identifying plastics

2. 6480678 - Light transmitting member driving device for a contour measuring apparatus

3. 6424603 - Library apparatus of storage media

4. 6266317 - Libraries for accommodating cartridge storage media

5. 5831957 - Cartridge access station for an optical or magnetic disk drive

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as of
12/21/2025
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