Growing community of inventors

Ohimachi, Japan

Katumi Kojima

Average Co-Inventor Count = 1.50

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 = 12

Katumi KojimaKiyoshi Ishii (1 patent)Katumi KojimaYasuhiro Sakaguchi (1 patent)Katumi KojimaKatumi Kojima (2 patents)Kiyoshi IshiiKiyoshi Ishii (25 patents)Yasuhiro SakaguchiYasuhiro Sakaguchi (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daicel Corporation (2 from 640 patents)

2. Mitsui Shipbuilding & Engineering Co., Ltd. (1 from 27 patents)


2 patents:

1. 4161447 - Process for treating waste water containing radioactive substances

2. 3979521 - Method for the manufacture of fruit wines from fruit juices of low sugar

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as of
12/18/2025
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