P

Inventor

KAWAKAMI RYUICHI

4 patents
⚠️ This page may combine multiple inventors who share the name “KAWAKAMI RYUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

3 patents
US5057739AOct 15, 1991

Matrix array of cathode ray tubes display device

SONY CORP37 citations90
US4318181AMar 2, 1982

Timer display apparatus

SONY CORP11 citations70
US5138435AAug 11, 1992

Crt-matrix display with indexing and stair step vertical deflection waveform.

SONY CORP4 citations60

SINTOKOGIO LTD

1 patent
US11158041B2Oct 26, 2021

Inspection device and casting system

SINTOKOGIO LTD7 citations81