I came across this road bike recently. I decided to post it here because there is very little about this badge on Bike Forums. This is only the 15th thread with Kuwahara in the title. The model is the "Duke". I really like that name, it sounds like power, strength, but its attached to an entry level road bike. It's an 83 or 84 based on the Suntour front derailer date code (ZD) and the serial number, 83-9-165283 that is found on the bottom of the seat tube. The components are entry level, chrome rims, chrome bars, stem shifters. The brakes are standard Dia-Comp center pull. The shifters and front DR are Suntour. The rear derailer is probably a replacement as it is a Shimano 400FF, but it is period correct. The freehub is a 6-speed. I think the paint job is real classy and in very good shape. I've got several entry level bikes so I don't think I'll hang on to this one. But I wanted to post it here for information.
I've read several bits of information about Kuwahara. They are better known for the BMX and Mountain bikes they made, but they did make road bikes. Other bits of info say they are still in business, but it's not clear to me who they are now or what name they're using. I also read they are frequently confused (in the US) with Kawamura who made Nisihiki frames. I'm certain, they are not related to Kawamura.