Growing community of inventors

Yokohama, Japan

Tsutomu Yokoyama

Average Co-Inventor Count = 3.75

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 = 41

Tsutomu YokoyamaKenichi Yamazaki (4 patents)Tsutomu YokoyamaKenji Sakamoto (4 patents)Tsutomu YokoyamaYoko Kikuta (4 patents)Tsutomu YokoyamaNarumi Umeda (1 patent)Tsutomu YokoyamaSadayuki Hongo (1 patent)Tsutomu YokoyamaTsutomu Yokoyama (5 patents)Kenichi YamazakiKenichi Yamazaki (17 patents)Kenji SakamotoKenji Sakamoto (13 patents)Yoko KikutaYoko Kikuta (5 patents)Narumi UmedaNarumi Umeda (107 patents)Sadayuki HongoSadayuki Hongo (22 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ntt Docomo, Inc. (5 from 4,698 patents)


5 patents:

1. 7835756 - Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network

2. 7454196 - Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network

3. 7340245 - Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network

4. 7257394 - Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network

5. 7142847 - Mobile communication system, resource switching method thereof, network control apparatus included therein, same and network control method

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as of
12/4/2025
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