Growing community of inventors

Kokubunji, Japan

Tomoko Sakiyama

Average Co-Inventor Count = 6.61

ph-index = 6

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 = 604

Tomoko SakiyamaMasaru Ohki (6 patents)Tomoko SakiyamaHirohiko Sagawa (6 patents)Tomoko SakiyamaYouichi Kaneko (4 patents)Tomoko SakiyamaHisashi Ikeda (3 patents)Tomoko SakiyamaKiyoshi Inoue (2 patents)Tomoko SakiyamaHiromichi Fujisawa (2 patents)Tomoko SakiyamaYasunari Obuchi (2 patents)Tomoko SakiyamaNobuo Hataoka (2 patents)Tomoko SakiyamaKazuhiko Sagara (2 patents)Tomoko SakiyamaYuji Toda (2 patents)Tomoko SakiyamaMasahiro Abe (2 patents)Tomoko SakiyamaEiji Oohira (2 patents)Tomoko SakiyamaEiji Ohira (1 patent)Tomoko SakiyamaTomoko Sakiyama (6 patents)Masaru OhkiMasaru Ohki (34 patents)Hirohiko SagawaHirohiko Sagawa (15 patents)Youichi KanekoYouichi Kaneko (4 patents)Hisashi IkedaHisashi Ikeda (11 patents)Kiyoshi InoueKiyoshi Inoue (304 patents)Hiromichi FujisawaHiromichi Fujisawa (49 patents)Yasunari ObuchiYasunari Obuchi (20 patents)Nobuo HataokaNobuo Hataoka (18 patents)Kazuhiko SagaraKazuhiko Sagara (17 patents)Yuji TodaYuji Toda (10 patents)Masahiro AbeMasahiro Abe (8 patents)Eiji OohiraEiji Oohira (3 patents)Eiji OhiraEiji Ohira (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (6 from 42,485 patents)


6 patents:

1. 6477239 - Sign language telephone device

2. 6181778 - Chronological telephone system

3. 5990878 - Sign language editing apparatus

4. 5953693 - Sign language generation apparatus and sign language translation

5. 5734923 - Apparatus for interactively editing and outputting sign language

6. 5659764 - Sign language generation apparatus and sign language translation

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as of
12/4/2025
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