Growing community of inventors

Kanonji, Japan

Masashi Kitagawa

Average Co-Inventor Count = 3.00

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 = 13

Masashi KitagawaTatsuya Tamura (2 patents)Masashi KitagawaNobuyuki Kato (2 patents)Masashi KitagawaKazuya Nishitani (1 patent)Masashi KitagawaMasahiro Kashiwagi (1 patent)Masashi KitagawaToshihisa Hayashi (1 patent)Masashi KitagawaMasashi Kitagawa (3 patents)Tatsuya TamuraTatsuya Tamura (55 patents)Nobuyuki KatoNobuyuki Kato (5 patents)Kazuya NishitaniKazuya Nishitani (18 patents)Masahiro KashiwagiMasahiro Kashiwagi (12 patents)Toshihisa HayashiToshihisa Hayashi (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Unicharm Corporation (3 from 1,645 patents)


3 patents:

1. 9433542 - Absorbent article and production method thereof

2. 9387137 - Absorbent article package and method of folding the same along folding lines toward opposite sides thereof

3. 8591487 - Absorbent article including a surface member with concaved sections

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as of
12/6/2025
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