Koichi Fukuda
200Patents
15h-index
185Co-inventors
89Inventor score
Filing activity: Dec 27, 1989 → Jun 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5755938A | Single chamber for CVD and sputtering film manufacturing | Emerging Cross-Sectional Technologies | 82 | Expired |
| US7253676B2 | Semiconductor device and driving method of semiconductor device | Electricity | 64 | Expired |
| US5202215A | Method of producing a toner comprising silicone containing organic resin microparticles | Physics | 63 | Expired |
| US7239556B2 | NAND-structured flash memory | Physics | 48 | Expired |
| US7180473B2 | Antenna with built-in filter | Electricity | 36 | Expired |
| US5609737A | Film manufacturing method using single reaction chamber for chemical-vapor deposition and sputtering | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6270618A | Plasma processing apparatus | Electricity | 29 | Expired |
| US8311777B2 | Coke oven wall surface evaluation apparatus, coke oven wall surface repair supporting apparatus, coke oven wall surface evaluation method, coke oven wall surface repair supporting method and computer program | Emerging Cross-Sectional Technologies | 25 | Active |
| US6148762A | Plasma processing apparatus | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5550091A | Method of sputtering a silicon nitride film | Electricity | 23 | Expired |
| US8964079B2 | Image sensor and image capturing apparatus | Electricity | 22 | Active |
| US5373052A | Organic polymer microparticle and process for producing the same | Chemistry; Metallurgy | 21 | Expired |
| US6970218B2 | Semi-transmissive LCD device including an optical film having negative uniaxial double refractive index ellipsoids | Physics | 18 | Expired |
| US7630261B2 | Nand-structured flash memory | Physics | 17 | Active |
| US7663189B2 | Silicon-on-sapphire semiconductor device with shallow lightly-doped drain | Electricity | 17 | Active |
| US7532520B2 | Semiconductor memory device and control method of the same | Physics | 15 | Active |
| US7590004B2 | Nonvolatile semiconductor memory having a plurality of interconnect layers | Electricity | 15 | Active |
| US6349670B1 | Plasma treatment equipment | Physics | 14 | Expired |
| US8203888B2 | Non-volatile semiconductor storage device | Physics | 14 | Active |
| US6911942B2 | Antenna apparatus and communication apparatus using the same | Electricity | 14 | Expired |
| US8304796B2 | Light-emitting apparatus | Electricity | 13 | Active |
| US8179720B2 | NAND flash memory | Physics | 13 | Active |
| US7126659B2 | Liquid crystal display device | Physics | 13 | Expired |
| US7542105B2 | Display device | Physics | 12 | Active |
| US6155202A | Plasma processing apparatus, matching box, and feeder | Electricity | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.