Those who have read the exhaust thread in LDH's web site may have noted the relation between the Yoshimura and Moriwaki families.
The two families are related through marriage of Hideo "Pops" Yoshimura's eldest daughter Namiko to Mamoru Moriwaki.
Mamoru Moriwaki worked for Yoshimura until he left and started Moriwaki Engineering.
While Yoshimura is closely associated with Suzuki, Moriwaki associated itself with Honda, specifically HRC.
Moriwaki did a lot of the engineering work for HRC on the VTR1000SPW (RC51) race bike and other Honda race bikes.
This is a link to a video about Hideo "Pops" Yoshimura.
Unfortunately, it's in Japanese. I would love to see this with sub-titles.
Towards the middle and to the end, there is an interview with Namiko Yoshimura and her husband, Mamoru Moriwaki. https://www.youtube.com/watch?featur...&v=gLw6vBZFR64