RI

Ryo ICHIKAWA

SE Seiko Epson: 2 patents #4,555 of 7,774Top 60%
📍 Minowa, JP: #53 of 73 inventorsTop 75%
Overall (All Time): #1,891,577 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11196427 Charge pump circuit, PLL circuit, and oscillator Akio Tsutsumi, Hisahiro Ito, Yasunari Furuya 2021-12-07
11165433 Charge pump, PLL circuit, and oscillator Hisahiro Ito 2021-11-02