Growing community of inventors

Tokyo, Japan

Yohsuke Itagaki

Average Co-Inventor Count = 4.00

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 = 6

Yohsuke ItagakiKeizo Yamada (4 patents)Yohsuke ItagakiTohru Tsujide (4 patents)Yohsuke ItagakiTakeo Ushiki (4 patents)Yohsuke ItagakiYohsuke Itagaki (4 patents)Keizo YamadaKeizo Yamada (53 patents)Tohru TsujideTohru Tsujide (23 patents)Takeo UshikiTakeo Ushiki (17 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Topcon Corporation (2 from 526 patents)

2. Fab Solutions, Inc. (2 from 24 patents)


4 patents:

1. 7795593 - Surface contamination analyzer for semiconductor wafers

2. 7700380 - Surface contamination analyzer for semiconductor wafers, method used therein and process for fabricating semiconductor device

3. 6943043 - Surface contamination analyzer for semiconductor wafers, method used therein and process for fabricating semiconductor device

4. 6753194 - Surface contamination analyzer for semiconductor wafers, method used therein and process for fabricating semiconductor device

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idiyas.com
as of
1/6/2026
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