Growing community of inventors

Kawasaki, Japan

Toshikatu Narumi

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 = 105

Toshikatu Narumi ↔ Shigeru Fukushima (2 patents)Toshikatu Narumi ↔ Jun Takahashi (2 patents)Toshikatu Narumi ↔ Seiya Ogawa (2 patents)Toshikatu Narumi ↔ Ken-ichi Itoh (1 patent)Toshikatu Narumi ↔ Ken-ich Itoh (1 patent)Toshikatu NarumiToshikatu Narumi (2 patents)Shigeru FukushimaShigeru Fukushima (171 patents)Jun TakahashiJun Takahashi (38 patents)Seiya OgawaSeiya Ogawa (8 patents)Ken-ichi ItohKen-ichi Itoh (9 patents)Ken-ich ItohKen-ich Itoh (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujitsu Corporation (2 from 39,228 patents)


2 patents:

1. 4822634 - Longitudinal magnetic coated recording medium

2. 4746569 - Longitudinal magnetic coated recording medium

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as of
12/7/2025
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