Found the following description of Tokai's "L.White"-pickups on a Japanese website:
"Tokai original pickup that was used on Tokai guitars from the 1980s to the 90s.
Developed by thoroughly researching and analyzing vintage pickups and optimizing them for Tokai guitars.
In order to maintain the quality by adopting OFC (oxygen-free copper) for the coil wire, a luxurious pickup hand-wound by a veteran craftsman one by one in Tokai factory. It's too costly to manufacture now.
In terms of sound, it has a warm clean tone that matches the tube amp, and a crunch sound that withers moderately when the volume is raised, and it is said that there is still a sound that can only be produced with this pickup.
L.WHITE is named after LAWRENCE WHITE, who was the president of Tokai's agency in the United States at that time"
Any further information on these pickups welcome.
"Tokai original pickup that was used on Tokai guitars from the 1980s to the 90s.
Developed by thoroughly researching and analyzing vintage pickups and optimizing them for Tokai guitars.
In order to maintain the quality by adopting OFC (oxygen-free copper) for the coil wire, a luxurious pickup hand-wound by a veteran craftsman one by one in Tokai factory. It's too costly to manufacture now.
In terms of sound, it has a warm clean tone that matches the tube amp, and a crunch sound that withers moderately when the volume is raised, and it is said that there is still a sound that can only be produced with this pickup.
L.WHITE is named after LAWRENCE WHITE, who was the president of Tokai's agency in the United States at that time"
Any further information on these pickups welcome.
