KO

Keiji Onishi

PA Panasonic: 4 patents #329 of 4,214Top 8%
Overall (2011): #25,466 of 364,097Top 7%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8049581 Piezoelectric filter and method for manufacturing the same Tomohiro Iwasaki, Hiroshi Nakatsuka 2011-11-01
8022794 Micromachine switch, filter circuit, duplexer circuit, and communication device Hiroshi Nakatsuka, Takehiko Yamakawa 2011-09-20
7986198 Frequency-variable acoustic thin film resonator, filter and communication apparatus using the same Hiroshi Nakatsuka, Takehiko Yamakawa 2011-07-26
7893793 Film bulk acoustic wave resonator and method for manufacturing the same Tomohiro Iwasaki, Hiroshi Nakatsuka, Takehiko Yamakawa, Tomohide Kamiyama 2011-02-22