Ryosuke Sako
10Patents
7h-index
31Co-inventors
66Inventor score
Filing activity: Apr 29, 1986 → Mar 2, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4830101A | Aluminum heat exchanger and method for producing aluminum heat exchanger | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6736908B2 | Composition and process for treating metal surfaces and resulting article | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4783224A | Method for hydrophilic treatment of aluminum using an amphoteric polymer | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5538078A | Aluminum-containing metal composite material and process for producing same | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5201119A | Method of manufacturing an aluminum heat exchanger | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5070938A | Aluminum heat exchanger and method of manufacturing same | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4726886A | Aluminum heat exchanger coating | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8156020B2 | Charge managing system, image forming apparatus, charge managing server, and image forming method | Physics | 3 | Active |
| US6300395A | Aqueous hydrophilization treatment composition and method for aluminum-containing metal material | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US8498912B2 | Charge managing system, image forming apparatus, charge managing server, and image forming method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.