Japanese patents are even harder to decipher than US pats. Here's some fairly recent ones of interest to suspension Swamis.
Here's a pretty new one to eliminate your bushing stiction. http://www.delphion.com/cgi-bin/viewpat.cmd/JP00097232A2
This looks like some variation of the pressurized fork. http://www.delphion.com/cgi-bin/viewpat.cmd/JP00097272A2
Could Hideaki San be cooking up an aluminum male slider? http://www.delphion.com/cgi-bin/viewpat.cmd/JP00274476A2
And of course we all know that air suspension will never work because the air "springs" get too stiff "after a position where compression over a certain level is made". http://www.delphion.com/cgi-bin/viewpat.cmd/JP00264277A2
Hairu!
MACE
Here's a pretty new one to eliminate your bushing stiction. http://www.delphion.com/cgi-bin/viewpat.cmd/JP00097232A2
This looks like some variation of the pressurized fork. http://www.delphion.com/cgi-bin/viewpat.cmd/JP00097272A2
Could Hideaki San be cooking up an aluminum male slider? http://www.delphion.com/cgi-bin/viewpat.cmd/JP00274476A2
And of course we all know that air suspension will never work because the air "springs" get too stiff "after a position where compression over a certain level is made". http://www.delphion.com/cgi-bin/viewpat.cmd/JP00264277A2
Hairu!
MACE