Inventor
SEKI YOUICHI
14 patents
⚠️ This page may combine multiple inventors who share the name “SEKI YOUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO KOKI KK
8 patentsUS4191459AMar 4, 1980
Digital camera shutter control circuit having memory read-out/shutter opening synchronization
SEIKO KOKI KK11 citations73
US4051489ASep 27, 1977
Exposure time control device for electric camera shutter
SEIKO KOKI KK7 citations73
US4038675AJul 26, 1977
System for indicating the operation of a self-timer in an electric shutter for camera
SEIKO KOKI KK12 citations73
US4107708AAug 15, 1978
Shutter control circuit having exposure time display
SEIKO KOKI KK4 citations62
US4019189AApr 19, 1977
Digital exposure time control circuit with self-timer
SEIKO KOKI KK4 citations62
US3999191ADec 21, 1976
Exposure time control device of electric shutter for camera
SEIKO KOKI KK3 citations62
US4048642ASep 13, 1977
Exposure time control device of electric shutter for camera
SEIKO KOKI KK1 citations51
US4025929AMay 24, 1977
Exposure time control device of electric shutter for camera capable of automatic and manual settings
SEIKO KOKI KK1 citations51
SEIKOSHA KK
5 patentsUS4881096ANov 14, 1989
Motor-driven shutter for camera
SEIKOSHA KK8 citations73
US5097262AMar 17, 1992
Analog-to-digital converter for camera
SEIKOSHA KK2 citations62
US5060000AOct 22, 1991
Motor-driven shutter for camera
SEIKOSHA KK6 citations62
US4864347ASep 5, 1989
Program shutter
SEIKOSHA KK3 citations62
US4831406AMay 16, 1989
Power circuit for camera
SEIKOSHA KK5 citations62