KK

Kazumasa Kohama

SO Sony: 17 patents #2,459 of 25,231Top 10%
Overall (All Time): #274,054 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
10784557 Signal processing circuit, signal processing module, and communication apparatus Kenji Noguchi 2020-09-22
10276911 Signal processing circuit, signal processing module, and communication apparatus Kenji Noguchi 2019-04-30
9824986 High-frequency device including high-frequency switching circuit 2017-11-21
9406696 High-frequency device including high-frequency switching circuit 2016-08-02
9105564 High-frequency device including high-frequency switching circuit 2015-08-11
8797697 High frequency integrated circuit 2014-08-05
8598629 High-frequency device including high-frequency switching circuit 2013-12-03
6704550 Antenna switching circuit and communication system using the same Daisuke Fukui 2004-03-09
6563366 High-frequency Circuit 2003-05-13
5969560 Switching circuit at high frequency with low insertion loss Kazuto Kitakubo 1999-10-19
5917362 Switching circuit 1999-06-29
5825227 Switching circuit at high frequency with low insertion loss Kazuto Kitakubo 1998-10-20
5812939 Switch semiconductor integrated circuit and communication terminal device 1998-09-22
5731607 Semiconductor integrated circuit device 1998-03-24
5717356 Low insertion loss switch 1998-02-10
5548239 Radio receiver-transmitter apparatus and signal changeover switch 1996-08-20
5448207 Attenuator circuit apparatus 1995-09-05