SI

Sadao Igarashi

AC Alps Electric Co.: 22 patents #39 of 2,177Top 2%
NE Nec Electronics: 1 patents #715 of 1,789Top 40%
OE Omron Tateisi Electronics: 1 patents #264 of 599Top 45%
Rohm Co.: 1 patents #1,438 of 2,292Top 65%
📍 Soma, JP: #34 of 570 inventorsTop 6%
Overall (All Time): #165,487 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
7369067 Optical coupled type isolation circuit Motoharu Kishi, Atsushi Iwata, Yoshitaka Murasaka, Toshifumi Imamura, Kouichi Kobinata 2008-05-06
6980776 Transceiver apparatus Yoshikazu Shimada, Hiroyuki Ashida, Katsuya Ogura 2005-12-27
6351504 Reception circuit Syuichi Tsuda 2002-02-26
6236848 Receiver integrated circuit for mobile telephone Kazuharu Aoki 2001-05-22
5926749 Amplifier circuit having common AGC to IF and RF amplifiers for use in a transmitter Kazuharu Aoki, Satoshi Urabe 1999-07-20
5900782 AGC voltage correction circuit Kazuharu Aoki, Satoshi Urabe 1999-05-04
5900781 Multistage variable gain amplifier circuit Kazuharu Aoki, Satoshi Urabe 1999-05-04
5532650 High-frequency amplifier 1996-07-02
5418500 High-frequency oscillator circuit 1995-05-23
5329189 Mixer circuit Susumu Ushida 1994-07-12
5327097 Gain control circuit Kazuharu Aoki 1994-07-05
5115317 Tuning apparatus for a television receiver including selectively activated amplifier and local oscillator circuits Susumu Ushida 1992-05-19
5057788 2-stage differential amplifier connected in cascade Susumu Ushida 1991-10-15
4983976 Signal transmission system and method Akimitsu Ogata, Hisato Fujisaka, Toshimitsu Nozu, Katsura Onozato, Masanobu Hirose +1 more 1991-01-08
4799033 Microwave separator Moriaki Ueno 1989-01-17
4761624 Microwave band-pass filter Moriaki Ueno 1988-08-02
4725793 Waveguide-microstrip line converter 1988-02-16
4725798 Waveguide filter 1988-02-16
4724408 Waveguide filter 1988-02-09
4716387 Waveguide-microstrip line converter 1987-12-29
4701728 Waveguide filter 1987-10-20
4504796 Microwave circuit apparatus 1985-03-12
4426627 Phase-locked loop oscillator circuit utilizing a sub-loop with a second phase comparator Akiyuki Yoshisato 1984-01-17
4369414 High-frequency input circuit for two inputs Kazuharu Aoki 1983-01-18
4306311 Double-balanced mixer circuit 1981-12-15