Masahiko Hirose
47Patents
21h-index
84Co-inventors
88Inventor score
Filing activity: Jul 15, 1976 → Jan 9, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5614099A | Highly permeable composite reverse osmosis membrane, method of producing the same, and method of using the same | Emerging Cross-Sectional Technologies | 99 | Expired |
| US5733602A | Method for producing highly permeable composite reverse osmosis membrane | Performing Operations; Transporting | 79 | Expired |
| US4065369A | Activated gas reaction apparatus & method | Performing Operations; Transporting | 71 | Expired |
| US5843351A | Highly permeable composite reverse osmosis membrane, method of producing the same | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5576057A | Method of producing high permeable composite reverse osmosis membrane | Performing Operations; Transporting | 62 | Expired |
| US6024873A | Highly permeable composite reverse osmosis membrane and a reverse osmosis membrane module using the same | Performing Operations; Transporting | 60 | Expired |
| US4339326A | Surface processing apparatus utilizing microwave plasma | Electricity | 56 | Expired |
| US5989426A | Osmosis membrane | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4265730A | Surface treating apparatus utilizing plasma generated by microwave discharge | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4423303A | Apparatus for treating powdery materials utilizing microwave plasma | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6454942B1 | Liquid separation membrane module | Performing Operations; Transporting | 37 | Expired |
| US5744039A | Composite semipermeable membrane and production method thereof | Performing Operations; Transporting | 32 | Expired |
| US5336409A | Composite reverse osmosis membrane and novel acid chloride | Chemistry; Metallurgy | 29 | Expired |
| US4366208A | Process for forming photoconductive organic film | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6723422B1 | Composite reverse osmosis membrane and process for preparing the same | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6171497A | Highly permeable composite reverse osmosis membrane | Performing Operations; Transporting | 26 | Expired |
| US6821430B2 | Method of treating reverse osmosis membrane element, and reverse osmosis membrane module | Performing Operations; Transporting | 26 | Expired |
| US6805796B2 | Water treatment apparatus | Chemistry; Metallurgy | 24 | Expired |
| US4365587A | Apparatus for forming organic polymer thin films utilizing microwave induced plasmas | Performing Operations; Transporting | 23 | Expired |
| US5674398A | Composite reverse osmosis membrane | Performing Operations; Transporting | 22 | Expired |
| US5510527A | Acid chloride | Chemistry; Metallurgy | 21 | Expired |
| US4729927A | Polyester packaging material | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4051382A | Activated gas reaction apparatus | Electricity | 16 | Expired |
| US8272785B2 | Bearing mechanism having sliding bearing | Mechanical Engineering; Lighting; Heating | 14 | Active |
| US4397885A | Method and apparatus for treating fluorescent substance | Electricity | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.