Kaneyoshi Ashida
22Patents
13h-index
14Co-inventors
78Inventor score
Filing activity: Feb 13, 1967 → Dec 10, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5091436A | Reinforced foam composites comprising hydroxy-containing vinyl ester resin | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4898893A | Blowing agents for isocyanurate foams and method for producing the same | Chemistry; Metallurgy | 45 | Expired |
| US4680214A | Reinforced foam composites | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4066628A | Oxazolidone catalyst | Chemistry; Metallurgy | 43 | Expired |
| US4742128A | Process for preparing a polymer alloy, molded product, and reaction injection molded products | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5336696A | Halogen-free blowing agents that include cycloaliphatic hydrocarbons and are suitable for isocyanate-based polymeric foams | Chemistry; Metallurgy | 29 | Expired |
| US4752626A | Method of making low compression set urethane foams | Chemistry; Metallurgy | 28 | Expired |
| US4568703A | Process for the production of polymers containing isocyanurate and or oxazolidone linkages | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4022721A | Process for producing compounds having an oxazolidone ring using a complex of aluminum halide catalyst | Chemistry; Metallurgy | 20 | Expired |
| US4582879A | Reaction injection molding process and reaction injection molded products | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4611013A | Catalysts for the preparation of carbodiimide foams and elastomers | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4044184A | Cryogenic insulating structure | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5260344A | Open cell rigid isocyanurate foams and method for producing the same and vacuum heat insulating layer by use of the same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US3931065A | Polyurethane-modified polyisocyanurate foam and a method for the preparation thereof | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4055522A | Process for producing an isocyanate-based polymer having reduced smoke generation | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4072636A | Process for preparing smoke-retardant polyisocyanurate foam | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4514525A | Process for preparing smoke-retardant polyisocyanurate foam | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4908161A | Fire retardant for isocyanate-based foams comprising ammonium sulfate and a cyanuric acid derivative | Chemistry; Metallurgy | 6 | Expired |
| US4780485A | Isocyanurate foam and method for producing the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4626385A | N-substituted carbamoyl-lactam | Chemistry; Metallurgy | 5 | Expired |
| US4133781A | Smoke-retardant polyisocyanurate foam | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4614615A | Process for preparing an N-substituted carbamoyl-lactam compound | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.