Inventor
TOGAWA MASAYUKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “TOGAWA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEIJIN SEIKI CO LTD
12 patentsUS5580639ADec 3, 1996
Method of manufacturing magnetic patterns
TEIJIN SEIKI CO LTD33 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
US6873448B2Mar 29, 2005
Optical path switching apparatus
TEIJIN SEIKI CO LTD7 citations73
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
US5281912AJan 25, 1994
Magneto-optic magnetic-field measuring apparatus for measuring a magnetic field intensity by measuring an angle of diffraction
TEIJIN SEIKI CO LTD8 citations73
US6072174AJun 6, 2000
Magneto-optically modulating system for monitoring relative relationship between an object and a magneto-optic effect element
TEIJIN SEIKI CO LTD3 citations62
US5434934AJul 18, 1995
Magneto-optically modulating system
TEIJIN SEIKI CO LTD6 citations62
US7062119B2Jun 13, 2006
Optical device
TEIJIN SEIKI CO LTD4 citations61
US6819827B2Nov 16, 2004
Optical path switching apparatus
TEIJIN SEIKI CO LTD2 citations57