Growing community of inventors

Chiba, Japan

Yumiko Iijima

Average Co-Inventor Count = 3.00

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 = 7

Yumiko IijimaHiroyuki Ohira (1 patent)Yumiko IijimaToshiyuki Nagatsuka (1 patent)Yumiko IijimaYumiko Iijima (1 patent)Hiroyuki OhiraHiroyuki Ohira (4 patents)Toshiyuki NagatsukaToshiyuki Nagatsuka (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tdk Corporation (1 from 7,954 patents)


1 patent:

1. 5526978 - Method for soldering electronic components

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as of
12/10/2025
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