2007/07/18
The photo page were updated.

2007/06/14
The link and photo pages were updated.

2007/05/14
Information was updated.

2007/03/30
The research page was updated.

2007/03/22

The research page was updated.

2007/02/13
The website was renewed.

2006/09/14
The research page was updated.
2006/08/21
EasySPM ver. 1.00.410 was released.
2006/08/11
The link page was updated
2006/07/26
A guestbook was opened.
2006/07/24
The image on the home was changed.
2006/07/18
ZCalc ver. 1.00.000 was released.
2006/07/11
"New Kota's Page+" was opened.
2006/06/27
EasySPM ver. 1.00.392 was released.
2006/05/29
EasySPM ver. 1.00.378 was released.
2006/05/16
EasySPM ver. 1.00.374 was released.
2006/05/01
EasySPM ver. 1.00.367 was released.
2006/04/20
EasySPM ver. 1.00.361 was released.
2006/04/03
EasySPM ver. 1.00.357 was released.
2006/03/15
EasySPM ver. 1.00.347 was released.

2006/02/25

"Website for EasySPM" was opened.