Nippon Mining Company Limited
140Patents
0Active
140Granted
41Portfolio score
Filing activity: Aug 30, 1974 → Jan 3, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4959278A | Tin whisker-free tin or tin alloy plated article and coating technique thereof | Emerging Cross-Sectional Technologies | 73 | Expired |
| US5135629A | Thin film deposition system | Electricity | 66 | Expired |
| US4224140A | Process for producing cracked distillate and hydrogen from heavy oil | Emerging Cross-Sectional Technologies | 60 | Expired |
| US4799975A | Method for producing beta type titanium alloy materials having excellent strength and elongation | Chemistry; Metallurgy | 53 | Expired |
| US4115324A | Catalyst for treating heavy oils | Chemistry; Metallurgy | 44 | Expired |
| US4816748A | Electronic thermohygrometer with square-wave pulse signal generator | Physics | 35 | Expired |
| US5077005A | High-conductivity copper alloys with excellent workability and heat resistance | Chemistry; Metallurgy | 34 | Expired |
| US4131517A | Surface treating process for copper foil for use in printed circuit | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5243316A | Magnetoresistance effect element | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5153563A | Fire sensing system, process for sensing fire and environment monitor | Physics | 30 | Expired |
| US4935312A | Film carrier having tin and indium plated layers | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4193849A | Method for making a raw board for use in printed circuits | Electricity | 30 | Expired |
| US4656455A | Humidity-sensing element | Physics | 24 | Expired |
| US5051128A | Elution process for gold-iodine complex from ion-exchange resins | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5004520A | Method of manufacturing film carrier | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5315282A | Magnetoresistance effect element | Physics | 22 | Expired |
| US4666667A | High-strength, high-conductivity copper alloy | Chemistry; Metallurgy | 22 | Expired |
| US4386258A | High frequency magnetic field coupling arc plasma reactor | Performing Operations; Transporting | 21 | Expired |
| US5134292A | Moving object detector and moving object detecting system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4427561A | Sulfur compound containing lubricant composition for use in Flon atmosphere | Chemistry; Metallurgy | 19 | Expired |
| US5094787A | Method of manufacturing ITO sputtering target | Chemistry; Metallurgy | 18 | Expired |
| US4036736A | Process for producing synthetic coking coal and treating cracked oil | Chemistry; Metallurgy | 17 | Expired |
| US5587303A | Production process of L-amino acids with bacteria | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4894742A | Thin-film laminated magnetic heads of Fe-Si-Al alloy | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5026614A | Magnetic recording medium with a zinc cobalt oxide non-magnetic substrate containing nickel or manganese | Emerging Cross-Sectional Technologies | 15 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.