Keiichi Ohnishi
17Patents
6h-index
24Co-inventors
62Inventor score
Filing activity: Dec 5, 1986 → Feb 12, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4687707A | Low reflectance transparent material having antisoiling properties | Emerging Cross-Sectional Technologies | 146 | Expired |
| US5895793A | Fluorine-containing hydrocarbon composition | Chemistry; Metallurgy | 36 | Expired |
| US5545777A | Process for producing a hydrogen-containing 2,2-difluoropropane | Chemistry; Metallurgy | 28 | Expired |
| US5789455A | Fluorine-containing hydrocarbon composition | Chemistry; Metallurgy | 15 | Expired |
| US5264639A | Process for producing a 2,2-difluoropropane | Chemistry; Metallurgy | 13 | Expired |
| US5608126A | Process for preparing 1,1,1,3,3-pentafluoropropane | Chemistry; Metallurgy | 12 | Expired |
| US5227547A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 4 | Expired |
| US5663464A | Method for producing1,1,1,3,3-pentafluoropropane | Performing Operations; Transporting | 4 | Expired |
| US5564799A | Holding apparatus for a solenoid valve controlling brake pressure | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5663543A | Method for producing a polyfluoropropionyl halide | Chemistry; Metallurgy | 2 | Expired |
| US6124511A | Method for producing a hydrogen-containing fluorinated alkane | Chemistry; Metallurgy | 2 | Expired |
| US6191327A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 2 | Expired |
| US6534683B2 | Process for producing fluorinated alkylamine compound | Chemistry; Metallurgy | 1 | Expired |
| US6414203B1 | Method of treating 1,1,1,3,3-pentafluoropropane | Performing Operations; Transporting | 1 | Expired |
| US5434321A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 1 | Expired |
| US5220084A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 1 | Expired |
| US7557227B2 | Process for producing hexafluoropropylene oxide | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.