Inventor
TOYAMA KIYOSHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “TOYAMA KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEIJIN SEIKI CO LTD
9 patentsUS5580639ADec 3, 1996
Method of manufacturing magnetic patterns
TEIJIN SEIKI CO LTD33 citations95
US4931635AJun 5, 1990
Optical position sensor using Faraday effect element and magnetic scale
TEIJIN SEIKI CO LTD94 citations95
US5350618ASep 27, 1994
Magnetic medium comprising a substrate having pits and grooves of specific shapes and depths
TEIJIN SEIKI CO LTD27 citations92
US5527663AJun 18, 1996
Method of manufacturing a medium having a magnetic pattern
TEIJIN SEIKI CO LTD15 citations81
US5336586AAug 9, 1994
Magnetic medium and method of manufacturing the same
TEIJIN SEIKI CO LTD14 citations81
US5429911AJul 4, 1995
Method of manufacturing a medium having a magnetic pattern
TEIJIN SEIKI CO LTD6 citations73
US5427675AJun 27, 1995
Method of manufacturing article having magnetic patterns
TEIJIN SEIKI CO LTD10 citations73
US4931634AJun 5, 1990
Optical position sensor using Kerr effect and a magnetic scale
TEIJIN SEIKI CO LTD14 citations73
US5434934AJul 18, 1995
Magneto-optically modulating system
TEIJIN SEIKI CO LTD6 citations62