Katsuaki Ishida
16Patents
11h-index
22Co-inventors
68Inventor score
Filing activity: Oct 22, 1991 → Dec 21, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7938955B2 | Method for producing super-low sulfur gas oil blending component or super-low sulfur gas oil composition, and super-low sulfur gas oil composition | Chemistry; Metallurgy | 32 | Active |
| US5590001A | Breather filter unit for magnetic disk drive | Physics | 29 | Expired |
| US5583720A | Magnetic disk drive and flexible printed board used in such drive | Electricity | 21 | Expired |
| US5541788A | Magnetic disk drive and flexible printed circuit board | Electricity | 20 | Expired |
| US5886851A | Frame structure of a disk drive for improved heat dissipation and a disk drive that uses such a frame structure | Physics | 17 | Expired |
| US5877915A | Ventilation structure of a cover for a disk drive | Physics | 17 | Expired |
| US5859746A | Magnetic disk drive and flexible printed board used in such drive | Electricity | 13 | Expired |
| US5764435A | Breather filter unit for magnetic disk drive | Physics | 12 | Expired |
| US6383974B1 | Hydrorefining catalyst and method for manufacturing hydrorefining catalyst | Performing Operations; Transporting | 12 | Expired |
| US5995321A | Carriage structure for disk device | Electricity | 11 | Expired |
| US5172287A | Magnetic disc apparatus having uniform torque imparting means for imparting uniform torque irrespective of rotational position of a head arm | Physics | 11 | Expired |
| US5673159A | Magnetic disk apparatus | Physics | 8 | Expired |
| US6551500B1 | Hydrocracking catalyst, producing method thereof, and hydrocracking method | Chemistry; Metallurgy | 7 | Expired |
| US6576119B2 | Method of producing middle distillate products by two-stage hydrocracking and hydrocracking apparatus | Chemistry; Metallurgy | 5 | Expired |
| US5602701A | Head actuator for magnetic disk drive unit | Physics | 4 | Expired |
| US8012342B2 | Lubricant base oil and method of producing the same | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.