Masaru Nakamura
198Patents
22h-index
189Co-inventors
93Inventor score
Filing activity: Jan 23, 1978 → May 19, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4897457A | Novel fluorine-containing cyclic polymer | Chemistry; Metallurgy | 161 | Expired |
| US7507639B2 | Wafer dividing method | Performing Operations; Transporting | 113 | Active |
| US6856433B2 | Holographic recording medium and holographic recording/reproducing apparatus using the same | Physics | 107 | Expired |
| US5462586A | Oil-and water repellent gas-permeable filter | Performing Operations; Transporting | 78 | Expired |
| US5216693A | Spread spectrum communications system | Electricity | 76 | Expired |
| US4910276A | Cyclic polymerization | Chemistry; Metallurgy | 63 | Expired |
| US5205032A | Electronic parts mounting apparatus | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5117272A | Having a protective film of a polymer having a fluorine-containing aliphatic cyclic structure | Electricity | 42 | Expired |
| US5449558A | Optical article having an antireflection layer | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4510201A | Polyvinyl chloride resinous molded sheet product | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5221984A | Optical data transmission device with parallel channel paths for arrayed optical elements | Electricity | 38 | Expired |
| US5303258A | Spread spectrum communications system | Electricity | 38 | Expired |
| US4667212A | Integrated optical and electric circuit device | Electricity | 37 | Expired |
| US5021361A | Method for making a field effect transistor integrated with an opto-electronic device | Emerging Cross-Sectional Technologies | 36 | Expired |
| US7535736B2 | Switching power supply for reducing external parts for overcurrent protection | Electricity | 36 | Active |
| US5498657A | Fluorine-containing polymer composition | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5160275A | Electrical connector for circuit boards | Electricity | 34 | Expired |
| US4838811A | Modular connector with EMI countermeasure | Electricity | 32 | Expired |
| US8258763B2 | Switching power supply unit and control circuit for same | Electricity | 31 | Active |
| US5093571A | Method and device for analyzing gas in process chamber | Electricity | 28 | Expired |
| US4906208A | Electrical connector | Electricity | 25 | Expired |
| US4822303A | Electrical connector | Electricity | 24 | Expired |
| US4949144A | Semiconductor photo-detector having a two-stepped impurity profile | Electricity | 22 | Expired |
| US4706101A | Light emitting diode formed of a compound semiconductor material | Electricity | 22 | Expired |
| US5691615A | Adaptive PI control method | Physics | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.