Inventor
ABE HIRAKU
JP11 patents
⚠️ This page may combine multiple inventors who share the name “ABE HIRAKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALPS ELECTRIC CO LTD
10 patentsUS4806751AFeb 21, 1989
Code wheel for a reflective type optical rotary encoder
ALPS ELECTRIC CO LTD167 citations98
US4644156AFeb 17, 1987
Code wheel for reflective optical rotary encoders
ALPS ELECTRIC CO LTD152 citations95
US5087879AFeb 11, 1992
Construction for adjustably mounting sensor portion of magnetic rotation sensor and method of adjusting gap between sensor and rotating drum
ALPS ELECTRIC CO LTD30 citations90
US5081756AJan 21, 1992
Methods for assembling and adjusting a magnetic encoder device
ALPS ELECTRIC CO LTD18 citations82
US4959574ASep 25, 1990
Precision Gap Magnetic Encode Device
ALPS ELECTRIC CO LTD10 citations73
US4845456AJul 4, 1989
Magnetic sensor
ALPS ELECTRIC CO LTD17 citations73
US4780610AOct 25, 1988
Optical rotary encoder having superposed metal plate and shield plate
ALPS ELECTRIC CO LTD9 citations73
US4727356AFeb 23, 1988
Optical rotary encoder
ALPS ELECTRIC CO LTD14 citations73
US4707062ANov 17, 1987
Star-shaped coupler
ALPS ELECTRIC CO LTD17 citations69
US4661697AApr 28, 1987
Optically reflecting code plate
ALPS ELECTRIC CO LTD18 citations69