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Tokyo, Japan

Takafumi Naito

Average Co-Inventor Count = 6.00

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 = 42

Takafumi Naito ↔ Yasunori Matsuoka (2 patents)Takafumi Naito ↔ Kiyoshi Nara (1 patent)Takafumi Naito ↔ Akira Haze (1 patent)Takafumi Naito ↔ Shizuko Kushida (1 patent)Takafumi Naito ↔ Seiji Kaneko (1 patent)Takafumi Naito ↔ Kazunao Yokota (1 patent)Takafumi Naito ↔ Takefumi Shindo (1 patent)Takafumi Naito ↔ Takefumi Shindoh (1 patent)Takafumi Naito ↔ Takashi Tsubahara (1 patent)Takafumi NaitoTakafumi Naito (2 patents)Yasunori MatsuokaYasunori Matsuoka (3 patents)Kiyoshi NaraKiyoshi Nara (7 patents)Akira HazeAkira Haze (4 patents)Shizuko KushidaShizuko Kushida (2 patents)Seiji KanekoSeiji Kaneko (2 patents)Kazunao YokotaKazunao Yokota (1 patent)Takefumi ShindoTakefumi Shindo (1 patent)Takefumi ShindohTakefumi Shindoh (1 patent)Takashi TsubaharaTakashi Tsubahara (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Taisei Corporation (2 from 80 patents)

2. Takeda Chemical Industries, Inc. (1 from 1,858 patents)

3. Ozawa Concrete Industry Co., Ltd. (1 from 5 patents)


2 patents:

1. 5174821 - Hydraulic composition, formed products therefrom and segregation

2. 4774045 - Concrete structural member and method for manufacture thereof

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as of
12/13/2025
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