Michio Ishikawa
40Patents
11h-index
69Co-inventors
78Inventor score
Filing activity: Feb 20, 1976 → Jul 1, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5554418A | Method of forming passivation film | Chemistry; Metallurgy | 35 | Expired |
| US4804590A | Abrasion resistant magnetic recording member | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5288329A | Chemical vapor deposition apparatus of in-line type | Chemistry; Metallurgy | 27 | Expired |
| US4832810A | Co-based alloy sputter target and process of manufacturing the same | Chemistry; Metallurgy | 19 | Expired |
| US7763115B2 | Vacuum film-forming apparatus | Emerging Cross-Sectional Technologies | 19 | Active |
| US5250339A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4635272A | Laser discharge tube | Electricity | 15 | Expired |
| US5043598A | High voltage supply having a voltage stabilizer | Electricity | 14 | Expired |
| US4473329A | Cyclic drilling machine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7828900B2 | Vacuum film-forming apparatus | Emerging Cross-Sectional Technologies | 12 | Active |
| US4446746A | Torque detecting apparatus | Physics | 11 | Expired |
| US4089020A | High power semiconductor diode | Electricity | 11 | Expired |
| US4232274A | Metal vapor laser system | Electricity | 10 | Expired |
| US4257014A | Gas laser discharge tube using corrugated cathode | Electricity | 9 | Expired |
| US4451187A | Machine tool | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4023128A | Temperature responsive reed switch | Electricity | 8 | Expired |
| US5147734A | Magnetic recording media manufactured by a process in which a negative bias voltage is applied to the substrate during sputtering | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5069983A | Magnetic recording member | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4420835A | Hollow cathode laser | Electricity | 6 | Expired |
| US5123163A | Process and apparatus for forming bumps on film carrier | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6897754B2 | Magnetic core for inductor | Electricity | 5 | Expired |
| US8419854B2 | Film-forming apparatus | Electricity | 4 | Active |
| US8252113B2 | Method for producing component for vacuum apparatus, resin coating forming apparatus and vacuum film forming system | Performing Operations; Transporting | 3 | Active |
| US5606255A | Hall effect sensing apparatus for moving object having an adjustable magnetor yoke | Physics | 3 | Expired |
| US5840374A | Method of forming a SiO.sub.2 passivation film on a plastic substrate | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.