Masao Matsui
37Patents
17h-index
51Co-inventors
84Inventor score
Filing activity: Jun 4, 1973 → Jul 8, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5593778A | Biodegradable copolyester, molded article produced therefrom and process for producing the molded article | Emerging Cross-Sectional Technologies | 138 | Expired |
| US4627950A | Method of producing abrasive fibers | Textiles; Paper | 82 | Expired |
| US6174602A | Spontaneously degradable fibers and goods made thereof | Emerging Cross-Sectional Technologies | 63 | Expired |
| US4420534A | Conductive composite filaments and methods for producing said composite filaments | Emerging Cross-Sectional Technologies | 52 | Expired |
| US4771153A | Apparatus for microwave heating of ceramic | Electricity | 49 | Expired |
| US3968307A | Mixed filaments | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6440556B2 | Spontaneously degradable fibers and goods made thereof | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6844062B2 | Spontaneously degradable fibers and goods made thereof | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4457973A | Conductive composite filaments and methods for producing said composite filaments | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6322887A | Spontaneously degradable fibers and goods made thereof | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6844063B2 | Spontaneously degradable fibers and goods made thereof | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4319831A | Cleaning device in a copying machine | Physics | 36 | Expired |
| US4216264A | Conductive composite filaments | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4309479A | Conductive composite filaments | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4772770A | Apparatus for joining ceramics by microwave | Chemistry; Metallurgy | 28 | Expired |
| US4178994A | Fire extinguishing system for warehouses | Human Necessities | 26 | Expired |
| US6173132A | Ventilation system for an image forming apparatus | Physics | 21 | Expired |
| US4461791A | Fur-like article having pile with difference in color or fineness | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6788426B1 | Image forming apparatus | Performing Operations; Transporting | 10 | Expired |
| US4525404A | Pile articles with attenuated upper portion and a method for producing the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5913093A | Sheet outputting apparatus of image forming apparatus | Physics | 8 | Expired |
| US4729913A | Chinchilla-like artificial fur | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4304818A | Insulation system for winding of electric rotating machines and process of production thereof | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6579617B2 | Spontaneously degradable fibers and goods made thereof | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6697590B2 | Sheet-like object conveying apparatus with movable body exposing a conveying path | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.