Growing community of inventors

Yokohama, Japan

Katsuji Nakamura

Average Co-Inventor Count = 5.00

ph-index = 4

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 = 98

Katsuji Nakamura ↔ Masakatsu Nakatsuka (4 patents)Katsuji Nakamura ↔ Tsutomu Nishizawa (4 patents)Katsuji Nakamura ↔ Junichi Fujio (4 patents)Katsuji Nakamura ↔ Shin Hosonuma (4 patents)Katsuji NakamuraKatsuji Nakamura (4 patents)Masakatsu NakatsukaMasakatsu Nakatsuka (43 patents)Tsutomu NishizawaTsutomu Nishizawa (33 patents)Junichi FujioJunichi Fujio (6 patents)Shin HosonumaShin Hosonuma (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsui Toatsu Chemicals, Incorporated (4 from 1,379 patents)


4 patents:

1. 5354513 - Polarizing film

2. 5286418 - Polarizing film

3. 5059356 - Polarizing film

4. 4824882 - Polarizing film

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as of
1/10/2026
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