Naoki Masuda
42Patents
7h-index
46Co-inventors
69Inventor score
Filing activity: Jul 27, 1992 → Dec 3, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5359255A | Discharge tube having a double-tube type structure | Electricity | 111 | Expired |
| US6755390B2 | Electromagnetic valve | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6547402B2 | Projection lens shifting mechanism | Electricity | 24 | Expired |
| US8480308B2 | Tapered roller bearing, tapered roller bearing apparatus, and automotive pinion shaft supporting apparatus utilizing same tapered roller bearing apparatus | Mechanical Engineering; Lighting; Heating | 13 | Active |
| US5518792A | Packaging materials having oxygen barrier quality | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6778051B2 | Electromagnetic valve | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5614787A | Metal halide lamp having heat dam portion | Electricity | 9 | Expired |
| US7871201B2 | Tapered roller bearing, tapered roller bearing apparatus, and automotive pinion shaft supporting apparatus utilizing same tapered roller bearing apparatus | Emerging Cross-Sectional Technologies | 6 | Active |
| US6238014A | Electromagnetic valve | Performing Operations; Transporting | 6 | Expired |
| US7832707B2 | Normally open electromagnetic valve | Electricity | 6 | Active |
| US7484894B2 | Tapered roller bearing an automotive pinion shaft supporting apparatus utilizing same tapered roller bearing | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9433064B2 | Light source apparatus, image display apparatus, and control method for light source apparatus | Emerging Cross-Sectional Technologies | 3 | Active |
| US9995996B2 | Cooling structure, lighting optical system, and projection-type display apparatus including substrate and phosphor formed on the substrate to emit fluorescent light | Electricity | 3 | Active |
| US6774753B2 | Normally closed electromagnetic valve | Performing Operations; Transporting | 2 | Expired |
| US9155231B2 | Motor-drive unit having heat radiator | Electricity | 2 | Active |
| US10233565B2 | Single-crystal manufacturing apparatus and method for controlling melt surface position | Chemistry; Metallurgy | 1 | Active |
| US9676376B2 | Vehicle brake fluid pressure control apparatus | Performing Operations; Transporting | 1 | Active |
| US7484895B2 | Tapered roller bearing and automotive pinion shaft supporting apparatus utilizing same tapered roller bearing | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US8823306B2 | Motor control device that decreases power consumed by control power source when power fails | Electricity | 1 | Active |
| US10212801B2 | Motor driving device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10113247B2 | Semiconductor single crystal pulling apparatus and method for remelting semiconductor single crystal using this | Chemistry; Metallurgy | 0 | Active |
| US11323060B2 | Motor control apparatus including protection mechanism | Electricity | 0 | Active |
| US8985779B2 | LED light source box and projector including the same | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11223194B2 | Motor control apparatus including protection mechanism | Electricity | 0 | Active |
| US9415755B2 | Vehicle brake hydraulic pressure control apparatus | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.