Inventor · disambiguated record
Shigeo Tohyama
Also filed as: TOHYAMA SHIGEO
9 granted patents·114 citations·filing 1978–1987
88Inventor score
Files withHITACHI LTD9
Top patents by PatentIndex Score
9 records- 0175US4323309ASpectro-photometer with arithmetic and control unitHITACHI LTD·Filed 1980·Granted Apr 6, 1982·31 cites·12 claims
- 0260US4325634ASlit width calibrator for monochromatorHITACHI LTD·Filed 1979·Granted Apr 20, 1982·14 cites·16 claims
- 0360US4304490ASpectrophotometerHITACHI LTD·Filed 1979·Granted Dec 8, 1981·17 cites·10 claims
- 0459US4786802AApparatus for measuring photoelasticityHITACHI LTD·Filed 1987·Granted Nov 22, 1988·19 cites·9 claims
- 0555US4352561ACalibrating apparatus in a monochromatorHITACHI LTD·Filed 1979·Granted Oct 5, 1982·12 cites·12 claims
- 0655US4227811ASpectrophotometerHITACHI LTD·Filed 1978·Granted Oct 14, 1980·12 cites·4 claims
- 0736US4283732ARecording system with inter-line space positioning meansHITACHI LTD·Filed 1980·Granted Aug 11, 1981·3 cites·22 claims
- 0834US4810089APhotoelastic effect measuring deviceHITACHI LTD·Filed 1987·Granted Mar 7, 1989·6 cites·10 claims
- 0928US4566793ARecording apparatus for a spectrophotometerHITACHI LTD·Filed 1983·Granted Jan 28, 1986·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →