Toshihiko Ohta
39Patents
17h-index
94Co-inventors
84Inventor score
Filing activity: Aug 4, 1976 → Nov 16, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5905611A | Thin film magnetic head responsive to spin-dependent scattering | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5329413A | Magnetoresistance sensor magnetically coupled with high-coercive force film at two end regions | Physics | 39 | Expired |
| US5222168A | Method for stacking ferrules of a stacked-type optical connector and a stacked-type optical connector | Electricity | 35 | Expired |
| US4668577A | Polyethylene filaments and their production | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5414786A | Optical waveguide component with a molded resin portion having accurately aligned guide pin holes therein | Physics | 28 | Expired |
| US5499668A | Process for making electronic device | Electricity | 26 | Expired |
| US5361382A | Method of connecting optical waveguide and optical fiber | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4617233A | Stretched polyethylene filaments of high strength and high modulus, and their production | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5185825A | Optical switching connector | Physics | 22 | Expired |
| US6046891A | Thin film head | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5461527A | Magneto-resistive head | Physics | 20 | Expired |
| US6172858A | Thin film head | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4643865A | Process for the production of a drawn product of crystalline polymer having high tenacity and high modulus | Performing Operations; Transporting | 19 | Expired |
| US6377723B1 | Optical waveguide circuit, and method for compensating the light transmission wavelength | Physics | 18 | Expired |
| US4825056A | Thin-film electromagnetic transducer | Physics | 18 | Expired |
| US4098860A | Production of biaxially drawn film of polyamide blend | Performing Operations; Transporting | 17 | Expired |
| US5731066A | Electronic circuit device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5249100A | Electronic circuit device provided with a ceramic substrate having lead pins bonded thereto by solder | Electricity | 14 | Expired |
| US4818853A | Data card with inductive signal transfer device | Physics | 14 | Expired |
| US6404946B1 | Arrayed waveguide grating type optical multiplexer/demultiplexer | Physics | 14 | Expired |
| US5940728A | Process for manufacturing electronic circuits | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5981786A | Process for producing (meth)acrylate derivatives | Chemistry; Metallurgy | 10 | Expired |
| US4910394A | Transducer for converting a signal to read out data and method for forming the same | Physics | 8 | Expired |
| US4990067A | Hermetic compressor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5022140A | Method of manufacturing magnetic head | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.