Growing community of inventors

Takatsuki, Japan

Iwao Katayama

Average Co-Inventor Count = 6.00

ph-index = 1

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 = 0

Iwao Katayama ↔ Yusuke Hirose (1 patent)Iwao Katayama ↔ Toshiro Yamada (1 patent)Iwao Katayama ↔ Ryuji Tanoue (1 patent)Iwao Katayama ↔ Shigeo Matsubara (1 patent)Iwao Katayama ↔ Yukimi Miwa (1 patent)Iwao KatayamaIwao Katayama (1 patent)Yusuke HiroseYusuke Hirose (8 patents)Toshiro YamadaToshiro Yamada (5 patents)Ryuji TanoueRyuji Tanoue (3 patents)Shigeo MatsubaraShigeo Matsubara (3 patents)Yukimi MiwaYukimi Miwa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nisshin Steel Co., Ltd. (1 from 342 patents)


1 patent:

1. 5277781 - Zirconia oxygen sensor

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as of
12/29/2025
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