Masahiro Noguchi
57Patents
11h-index
86Co-inventors
81Inventor score
Filing activity: Jun 24, 1980 → Mar 14, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5040044A | Compound semiconductor device and method for surface treatment | Electricity | 86 | Expired |
| US4902356A | Epitaxial substrate for high-intensity led, and method of manufacturing same | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4983312A | Refrigerants | Chemistry; Metallurgy | 44 | Expired |
| US5334916A | Apparatus and method for LED emission spectrum control | Electricity | 43 | Expired |
| US6825830B1 | Information processing system, information processing method, and computer-readable recording medium for executing information processing method on a computer | Electricity | 33 | Expired |
| US7271421B2 | Light-emitting diode array | Electricity | 26 | Expired |
| US4957652A | Refrigerants | Chemistry; Metallurgy | 19 | Expired |
| US5087381A | Refrigerants | Chemistry; Metallurgy | 18 | Expired |
| US4889586A | Method for polishing AlGaAs surfaces | Electricity | 16 | Expired |
| US4923626A | Refrigerants | Chemistry; Metallurgy | 14 | Expired |
| US8917548B2 | Non-volatile semiconductor memory device | Physics | 12 | Active |
| US5099180A | Ultrasonic motor driving circuit | Electricity | 11 | Expired |
| US4352162A | Digital filter | Physics | 11 | Expired |
| US4557851A | Working fluids for the Rankine cycle comprising trichlorofluoromethane and 1,1-difluoroethane, isobutane or octafluorocyclobutane | Chemistry; Metallurgy | 10 | Expired |
| US8496845B2 | Refrigerant composition comprising difluoromethane (HFC32), pentafluoroethane (HFC125) and 2, 3, 3, 3-tetrafluoropropene (HFO1234yf) | Chemistry; Metallurgy | 10 | Active |
| US7660603B2 | Card type electronic device system and card type electronic device | Physics | 10 | Expired |
| US6187219A | Refrigerator and difluoromethane/Pentafluoroethane/1,1,1,2-tetrafluoroethane working fluid | Chemistry; Metallurgy | 10 | Expired |
| US5795080A | Needle bearing retainer and a needle bearing | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5066410A | Refrigerating machine composition comprising a fluorine-containing polyether oil | Chemistry; Metallurgy | 9 | Expired |
| US5284798A | Method for forming an electrode for a compound semiconductor | Electricity | 9 | Expired |
| US4465610A | Working fluids for rankine cycle | Chemistry; Metallurgy | 8 | Expired |
| US4562995A | Working fluids for Rankine cycle | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4651531A | Working fluids for Rankine cycle | Chemistry; Metallurgy | 6 | Expired |
| US6043509A | Light-emitting diode having moisture-proof characteristics and high output power | Electricity | 6 | Expired |
| US6996516B1 | Apparatus for analyzing software and method of the same | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.