Sanyo almost cornered the Boombox, TV, Calculator market, boomboxes might have gotten more respect in the education industry. https://www.google.com/patents/US43...ved=0ahUKEwj1n7zahIbZAhUEbKwKHU3yD_0Q6AEIJzAA
An interesting unit from Mitsubishi, I love how the battery is part of the hinge. https://www.google.com/patents/US44...ved=0ahUKEwjznPqahobZAhVNG6wKHT7MAA0Q6AEIQzAE
Can anyone guess which Sony this is? "Portable tape player with radio in lid" https://www.google.com/patents/US46...=0ahUKEwii2smKh4bZAhUDEawKHVXLAoo4ChDoAQhQMAY
Portable tape player and digital disc! https://www.google.com/patents/USD3...=0ahUKEwii2smKh4bZAhUDEawKHVXLAoo4ChDoAQhlMAk
This would have been sweet! A boombox with built in phone! https://www.google.com/patents/US59...=0ahUKEwiKv8j9kYbZAhWO3oMKHcTIB2Q4FBDoAQgtMAE
A boombox that turns into a walkman that turns into a car stereo https://www.google.com/patents/EP03...=0ahUKEwjUqKO0kobZAhUn6YMKHQEpBYY4HhDoAQhlMAk
I don't know if I remember Olympus ever having a box or Walkman but they were on the cutting edge with the kangaroo style for both a small radio and a box. https://patents.google.com/patent/U...o&oq=portable+speaker,+cassette,+radio&page=2
The ultimate boombox cooler! https://patents.google.com/patent/U...e,&q=radio&oq=portable+cassette,+radio&page=1
Casio always made cool stuff, I'm lucky to have some of their iconic keyboards and calculators and even some of the really small TVs that were so hot in the 80's and 90's. This must have been one of the first patent applications for the small LCD units and this one also plays cassettes. It looks like the cassette is the LCD screen! https://patents.google.com/patent/U...e,&q=radio&oq=portable+cassette,+radio&page=2
Another Olympus Walkman from 1980. https://patents.google.com/patent/U...icrocassette&oq=portable+stereo+microcassette
Radio thermal headband, this guy must never have worked out. https://patents.google.com/patent/US4648130A/en?oq=US4648130A
The first portable CD player? Not in 1999... https://patents.google.com/patent/US6041023A/en?oq=us6041023
Here's a cool one, Sony's Direct Drive Patent https://patents.google.com/patent/US4630149A/en?oq=US4630149A
Panasonic's Patent for a smaller Magnetic tape recording and/or reproducing apparatus from 1977. https://patents.google.com/patent/US4196875A/en?oq=US4630149A
Another Sony.... Cassette accommodating type electronic device having a plurality of windows for identifying the amount of remaining tape and the side label of the cassette accommodated in the device https://patents.google.com/patent/US5414573A/en?oq=US5414573A
A very early Panasonic Patent, check out the name "Jazz" and the button placement. https://patents.google.com/patent/US4580181A/en?oq=US5414573A
The original Sony Walkman Patent? Probably not it looks like the first revision. https://patents.google.com/patent/US4453189A/en?oq=US4649453A
