No - Tennex also makes filters for Honda. They're supposed to be pretty good, too, from what I understand. My '06 Civic Hybrid came with one (it's JDM-built - with many US-sourced parts - go figure). I still have it, too (couldn't part with it,because of it's 'uniqueness' in this market). Maybe I can order the part from American Honda - but probably not.
However, mine from the Civic isn't the same as yours - mine is the equivalent size of the now-universal one that you get at the USDM parts counters (made by Honeywell / Fram(?) ). It has both Japanese & English instructions on it.
My S2000 filters (15400-PCX-004) are by Filtech, made in USA. They also have English / Japanese instructions on them. I think these may have been Toyo Roki in the past, not sure. Filtech also used to supply the 'universal' filters for the US market, but they're a rare find now - almost 100% of the US/Canada production / availability is by Honeywell now.
