Hirofumi Kawashima

PLPiedek Technical Laboratory: 1 patents #1 of 1Top 100%

Overall (2011): #286,780 of 364,097Top 80%

1 Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7944131	Quartz crystal unit, quartz crystal oscillator and manufacturing method of the same	—	2011-05-17