KM

Kiyoharu Matsuo

NC Nihon Dempa Kogyo Co.: 3 patents #109 of 296Top 40%
Overall (All Time): #1,343,190 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12388415 Crystal unit, semimanufactured crystal unit, and method for manufacturing crystal unit Takahiro Ohtsuka 2025-08-12
11251773 AT-cut crystal element, crystal unit, and semi-manufactured crystal unit 2022-02-15
6972511 Quartz-crystal unit Katsunori Akane 2005-12-06