Hitoshi Kanai
33Patents
12h-index
48Co-inventors
77Inventor score
Filing activity: Sep 26, 1991 → Jan 6, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5896252A | Multilayer spin valve magneto-resistive effect magnetic head with free magnetic layer including two sublayers and magnetic disk drive including same | Physics | 143 | Expired |
| US6154349A | Magnetoresistive transducer including CoFeZ soft magnetic layer | Physics | 124 | Expired |
| US6493197B2 | Magneto-resistance effect type head and information reproducing apparatus | Physics | 105 | Expired |
| US6046892A | Magnetoresistive head with improved underlayer | Electricity | 48 | Expired |
| US5898546A | Magnetoresistive head and magnetic recording apparatus | Physics | 26 | Expired |
| US5850323A | Magnetoresistive head and magnetic recording drive | Physics | 21 | Expired |
| US6295175A | Apparatus for recognizing spin valve head failure due to pin layer magnetic field offset | Physics | 20 | Expired |
| US5583726A | Magneto-resistive head using flux guide | Physics | 19 | Expired |
| US6759120B2 | Magnetoresistive film, magnetoresistive head, information regeneration apparatus and magnetoresistive film manufacture method | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5978182A | Magnetoresistive head with spin valve configuration | Physics | 17 | Expired |
| US5771141A | Magnetoresistive head and magnetic recording/reproducing apparatus | Physics | 15 | Expired |
| US5187628A | Thin film magnetic head having magnetic anisotropy with in-plane and perpendicular components | Physics | 13 | Expired |
| US7095591B2 | Head slider having microactuator | Physics | 11 | Expired |
| US6483674B1 | Spin valve head, production process thereof and magnetic disk device | Physics | 11 | Expired |
| US6493196B1 | Spin-valve magnetoresistive sensor and magnetic head having such a spin-valve magnetoresistive sensor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6995960B2 | Spin valve magnetoresistive sensor having CPP structure | Electricity | 10 | Expired |
| US5792546A | Magneto-resistive head and method of producing the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6243241A | Spin valve magneto-resistance effect head and a magnetic storage apparatus using the same | Physics | 10 | Expired |
| US6123780A | Spin valve magnetoresistive head and manufacturing method therefor | Physics | 8 | Expired |
| US6501627B2 | Spin-valve magnetoresistive head, and composite-type magnetic head and magnetic recording medium drive using the same | Physics | 7 | Expired |
| US6829122B2 | Magnetic head of a magnetoresistance type having an underlying layer having a laminated structure of a tungsten-group metal layer formed on a tantalum-group metal layer | Physics | 6 | Expired |
| US6819533B2 | Magnetoresistive head in which an interlayer coupling field applied to a free magnetic layer is reduced | Physics | 6 | Expired |
| US6477020B1 | Magneto-resistive head and magnetic recording and reproducing apparatus | Physics | 4 | Expired |
| US6010781A | Magnetoresistance effect element, magnetoresistance effect type head and magnetic recording/reproducing apparatus | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6671138B2 | Multi-layer magnetoresistive head and information-reproducing system | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.