Growing community of inventors

Kameoka, Japan

Keiji Okada

Average Co-Inventor Count = 5.00

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 = 231

Keiji OkadaTakashi Kaneko (2 patents)Keiji OkadaTakeshi Kanamaru (2 patents)Keiji OkadaMasahiro Takeuchi (2 patents)Keiji OkadaKatsuya Goto (2 patents)Keiji OkadaKeiji Okada (2 patents)Takashi KanekoTakashi Kaneko (65 patents)Takeshi KanamaruTakeshi Kanamaru (6 patents)Masahiro TakeuchiMasahiro Takeuchi (3 patents)Katsuya GotoKatsuya Goto (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Terumo Kabushiki Kaisha (2 from 2,311 patents)

2. Maruho Hatsujyo Kogyo Co., Ltd. (1 from 5 patents)

3. Maruho Hatsujyo Kogyo., Ltd. (1 from 1 patent)


2 patents:

1. 7575585 - Intravascular obstruction removing wire and medical instrument

2. 7041116 - Intravascular obstruction removing wire and medical instrument

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idiyas.com
as of
12/21/2025
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