Mitsubishi Kinzoku Kabushiki Kaisha
194Patents
0Active
194Granted
42Portfolio score
Filing activity: Mar 13, 1974 → Jun 15, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4431764A | Antistatic transparent coating composition | Emerging Cross-Sectional Technologies | 95 | Expired |
| US4731296A | Diamond-coated tungsten carbide-base sintered hard alloy material for insert of a cutting tool | Emerging Cross-Sectional Technologies | 94 | Expired |
| US4944650A | Apparatus for detecting and centering wafer | Emerging Cross-Sectional Technologies | 79 | Expired |
| US4981549A | Method and apparatus for growing silicon crystals | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4889170A | High strength Ti alloy material having improved workability and process for producing the same | Chemistry; Metallurgy | 61 | Expired |
| US4642003A | Rotary cutting tool of cemented carbide | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4971021A | Apparatus for cutting semiconductor crystal | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4699549A | Insert rotary cutter | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4373013A | Electroconductive powder and process for production thereof | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4452830A | Electroconductive powder and process for production thereof | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4547470A | Sialon-base ceramic materials excellent in wear resistance | Chemistry; Metallurgy | 50 | Expired |
| US4981532A | Rare earth-iron-boron magnet powder and process of producing same | Electricity | 47 | Expired |
| US4539251A | Surface coated Sialon-base ceramic materials for tools | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4587174A | Tungsten cermet | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5230593A | Twist drill | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4636252A | Method of manufacturing a high toughness cermet for use in cutting tools | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4983079A | Twist drill | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4898499A | Ball end mill | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4748361A | Permanent magnet electric motor | Electricity | 34 | Expired |
| US4693641A | End mill with throw-away tip | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4447263A | Blade member of cermet having surface reaction layer and process for producing same | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4329195A | Lateral pulling growth of crystal ribbons | Chemistry; Metallurgy | 31 | Expired |
| US4897966A | Polishing apparatus | Performing Operations; Transporting | 31 | Expired |
| US4619697A | Sputtering target material and process for producing the same | Chemistry; Metallurgy | 29 | Expired |
| US4616962A | Cutter insert | Emerging Cross-Sectional Technologies | 28 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.