Toshio Ichida
21Patents
8h-index
30Co-inventors
71Inventor score
Filing activity: Sep 19, 1974 → Jan 15, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4702802A | Method for making high corrosion resistance composite plated steel strip | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4775599A | Cold rolled steel sheets having an improved press formability | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4834845A | Preparation of Zn-Ni alloy plated steel strip | Chemistry; Metallurgy | 26 | Expired |
| US3985583A | Method for forming an insulating coating on an oriented silicon steel sheet | Electricity | 20 | Expired |
| US4579786A | Surface-treated steel strips seam weldable into cans | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4650724A | High corrosion resistance composite plated steel strip | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4249966A | Method of forming a forsterite insulating film on the surface of a grain-oriented silicon steel sheet | Electricity | 10 | Expired |
| US4238534A | Method for forming a heat-resistant coating on an oriented silicon steel sheet | Electricity | 9 | Expired |
| US4687713A | Tin-free steel strips useful in the manufacture of welded cans and process for making | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4127429A | Forsterite insulating films formed on surface of a grain-oriented silicon steel sheet having a high magnetic induction and a method of forming the same | Chemistry; Metallurgy | 8 | Expired |
| US4242155A | Method of forming an insulating film on a grain-oriented silicon steel sheet | Chemistry; Metallurgy | 8 | Expired |
| US4608320A | Surface-treated steel strips adapted for electric resistance welding | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4432845A | Method of producing tin-free steel sheets having improved resistance to retorting treatment | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4519879A | Method of producing tin-free steel sheets | Chemistry; Metallurgy | 4 | Expired |
| US4931106A | Hot rolled steel sheet having high resistances against secondary-work embrittlement and brazing embrittlement and adapted for ultra-deep drawing and a method for producing the same | Chemistry; Metallurgy | 3 | Expired |
| US4561943A | Process for preparing surface-treated steel strips adapted for electric resistance welding and strips produced by said process | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4190469A | Method for forming forsterite insulating film on an oriented silicon steel sheet | Electricity | 3 | Expired |
| US4113530A | Method for forming a heat-resistant insulating film on a grain oriented silicon steel sheet | Chemistry; Metallurgy | 2 | Expired |
| US4542077A | Tin-free steel sheets having improved lacquer adhesion | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4832800A | Process for preparing surface-treated steel strips adapted for electric resistance welding | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5266182A | Method for producing Zn-Ni alloy plated steel plate having superior press formability | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.