Inventor
TOHYAMA SHIGEO
9 patents
Patents
9 patentsUS4323309AApr 6, 1982
Spectro-photometer with arithmetic and control unit
HITACHI LTD31 citations90
US4786802ANov 22, 1988
Apparatus for measuring photoelasticity
HITACHI LTD19 citations72
US4325634AApr 20, 1982
Slit width calibrator for monochromator
HITACHI LTD14 citations72
US4352561AOct 5, 1982
Calibrating apparatus in a monochromator
HITACHI LTD12 citations71
US4304490ADec 8, 1981
Spectrophotometer
HITACHI LTD17 citations71
US4227811AOct 14, 1980
Spectrophotometer
HITACHI LTD12 citations71
US4810089AMar 7, 1989
Photoelastic effect measuring device
HITACHI LTD6 citations60
US4283732AAug 11, 1981
Recording system with inter-line space positioning means
HITACHI LTD3 citations60
US4566793AJan 28, 1986
Recording apparatus for a spectrophotometer
HITACHI LTD0 citations40