content_image/890587.jpg content_image/890582.jpg content_image/890585.jpg
<img src='content_image/890587.jpg'>

-continued 

<img src='content_image/890582.jpg'>

[0054] A specific structure of the onium salt compound represented by formula (4) when R $^{3 }$is a phenylene group or a naphthylene group can include the ones shown below. The present invention is not limited to these. 

[Chemical Formula 8] 

<img src='content_image/890585.jpg'>

