Tsuyoshi Orikasa
55Patents
20h-index
87Co-inventors
87Inventor score
Filing activity: Oct 14, 1987 → Aug 24, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5262802A | Recording head assembly with single sealing member for ejection outlets and for an air vent | Chemistry; Metallurgy | 107 | Expired |
| US5657539A | Process for producing an ink jet recording head | Emerging Cross-Sectional Technologies | 80 | Expired |
| US5389957A | Ink jet head with contoured outlet surface | Performing Operations; Transporting | 80 | Expired |
| US5237342A | Ink jet head and ink jet recording apparatus having an ink container filled with porous material | Performing Operations; Transporting | 67 | Expired |
| US6116714A | Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing head | Performing Operations; Transporting | 62 | Expired |
| US5485184A | Ink jet recording head and ink jet apparatus having same | Performing Operations; Transporting | 52 | Expired |
| US5280299A | Ink filling method for ink jet recording apparatus | Performing Operations; Transporting | 46 | Expired |
| US5567373A | Method and apparatus for manufacturing a liquid container having plural porous members | Performing Operations; Transporting | 36 | Expired |
| US5940957A | Laser process for making a filter for an ink jet | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5148192A | Liquid jet recording head with nonlinear liquid passages and liquid jet recording apparatus having same | Performing Operations; Transporting | 31 | Expired |
| US5815184A | Ink container having plural porous members for storing ink and ink jet apparatus having said ink container | Performing Operations; Transporting | 30 | Expired |
| US5189443A | Recording head having stress-minimizing construction | Performing Operations; Transporting | 26 | Expired |
| US5162818A | Ink jet recording head having a window for observation of electrical connection | Performing Operations; Transporting | 26 | Expired |
| US5389954A | Laser process apparatus for forming holes in a workpiece | Performing Operations; Transporting | 25 | Expired |
| US5933163A | Ink jet recording apparatus | Performing Operations; Transporting | 25 | Expired |
| US5371528A | Liquid jet head with nonlinear liquid passages having a diverging portion | Performing Operations; Transporting | 25 | Expired |
| US5850238A | Recording head with cover | Chemistry; Metallurgy | 23 | Expired |
| US4890378A | Method for manufacturing a magnetic head core having a magnetic film | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5243755A | Ink-jet head assembling apparatus and method | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6151051A | Detachable ink jet unit and ink jet apparatus | Performing Operations; Transporting | 20 | Expired |
| US6113223A | Ink jet recording head with ink chamber having slanted surfaces to aid bubble removal | Performing Operations; Transporting | 18 | Expired |
| US5500666A | Capping member for indirectly venting the interior of an ink container, and recording cartridge and apparatus using same | Performing Operations; Transporting | 17 | Expired |
| US5373633A | Assembling method and apparatus for ink-jet head | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6168264A | Manufacturing method for the liquid ejection head | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5216448A | Ink jet recording head carriage and an apparatus with same | Performing Operations; Transporting | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.