Keiichi Murai
47Patents
14h-index
89Co-inventors
84Inventor score
Filing activity: Sep 30, 1977 → May 4, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5506611A | Replaceable ink cartridge having surface wiring resistance pattern | Performing Operations; Transporting | 272 | Expired |
| US5451251A | Ink, and ink-jet recording method and instrument using the same | Chemistry; Metallurgy | 101 | Expired |
| US5575849A | Apparatus for producing a substrate having a surface with a plurality of spherical dimples for photoconductive members | Performing Operations; Transporting | 85 | Expired |
| US5716740A | Method for manufacturing a color filter in which light irradiation alters the ink absorption of portions of a resin layer and in which coloring is done by ink jets | Performing Operations; Transporting | 58 | Expired |
| US6312084A | Ink jet recording apparatus and ink cartridge for the apparatus | Performing Operations; Transporting | 56 | Expired |
| US6062674A | Method and apparatus for ink-jet printing | Performing Operations; Transporting | 44 | Expired |
| US5365255A | Manufacturing method for ink jet recording head and ink jet recording head | Performing Operations; Transporting | 30 | Expired |
| US6794427B2 | Liquid composition and ink set, and image-forming process and apparatus using the same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4183748A | Method of removing surface ionic impurities on inorganic photoconductive material | Physics | 22 | Expired |
| US5594479A | Method for manufacturing ink jet recording head having water-repellent material | Performing Operations; Transporting | 19 | Expired |
| US4279500A | Electrophotographic apparatus and an abrading means | Physics | 18 | Expired |
| US4735883A | Surface treated metal member, preparation method thereof and photoconductive member by use thereof | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5510818A | Transfer-molding resin composition for use to manufacture ink jet recording head, and ink jet recording head manufactured by using the same | Performing Operations; Transporting | 15 | Expired |
| US5758417A | Method of manufacturing an ink jet head having a coated surface | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5112656A | Coating method suitable for use in production of photosensitive member for electrophotography | Performing Operations; Transporting | 14 | Expired |
| US5482660A | Method for fabricating an ink jet head having improved discharge port formation face | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5289213A | Liquid jet recording apparatus with humidifying means | Performing Operations; Transporting | 14 | Expired |
| US5948290A | Method of fabricating an ink jet recording head | Performing Operations; Transporting | 13 | Expired |
| US6686104B1 | Color filter, method for manufacturing it, and liquid crystal panel | Performing Operations; Transporting | 12 | Expired |
| US5796415A | Manufacturing method for ink jet recording head and ink jet recording head | Performing Operations; Transporting | 12 | Expired |
| US6180294A | Color filter having substrate and ink absorptive resin layer | Performing Operations; Transporting | 12 | Expired |
| US6926392B2 | Liquid ejection head | Performing Operations; Transporting | 11 | Expired |
| US4732834A | Light receiving members | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6094247A | Color filter substrate with light-screening members arranged on the resin layer patterns and production method thereof | Physics | 10 | Expired |
| US4797327A | Surface treated metal member, preparation method thereof and photoconductive member by use thereof | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.