Minoru Usui
145Patents
29h-index
101Co-inventors
93Inventor score
Filing activity: Dec 8, 1981 → Oct 5, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6502917B1 | Ink-jet printing apparatus and ink cartridge therefor | Textiles; Paper | 193 | Expired |
| US5255016A | Ink jet printer recording head | Performing Operations; Transporting | 101 | Expired |
| US6470744B1 | Liquid detecting piezoelectric device, liquid container and mounting module member | Performing Operations; Transporting | 71 | Expired |
| US5963234A | Laminated ink jet recording head having flow path unit with recess that confronts but does not communicate with common ink chamber | Performing Operations; Transporting | 70 | Expired |
| US6585358B2 | Ink cartridge for ink jet recording apparatus, connection unit and ink jet recording apparatus | Performing Operations; Transporting | 69 | Expired |
| US6302531A | Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unit | Mechanical Engineering; Lighting; Heating | 62 | Expired |
| US6796627B2 | Ink jet recording apparatus, method of replenishing ink to subtank in the apparatus, and method of checking the replenished amount of ink | Performing Operations; Transporting | 58 | Expired |
| US6312115A | Ink cartridge for ink jet recorder and method of manufacturing same | Performing Operations; Transporting | 57 | Expired |
| US5748214A | Ink jet recording head | Performing Operations; Transporting | 57 | Expired |
| US5446485A | Drop-on-demand ink-jet printing head | Performing Operations; Transporting | 56 | Expired |
| US6536861B1 | Liquid container having liquid consumption detecting device | Performing Operations; Transporting | 55 | Expired |
| US4769639A | Liquid crystal drive circuit for driving a liquid crystal display element having scanning and signal electrodes arranged in matrix form | Physics | 55 | Expired |
| US4775891A | Image display using liquid crystal display panel | Physics | 54 | Expired |
| US4816816A | Liquid-crystal display apparatus | Physics | 52 | Expired |
| US5889539A | Ink jet print head | Performing Operations; Transporting | 46 | Expired |
| US5465102A | Image display apparatus | Physics | 42 | Expired |
| US5347294A | Image display apparatus | Physics | 40 | Expired |
| US6102517A | Ink-jet recording apparatus for ink cartridge | Performing Operations; Transporting | 40 | Expired |
| US6550902B2 | Ink-jet printing apparatus and ink cartridge therefor | Textiles; Paper | 40 | Expired |
| US6786581B1 | Ink-jet printing apparatus and ink cartridge | Performing Operations; Transporting | 40 | Expired |
| US6634738B1 | Ink cartridge for ink-jet printing apparatus | Performing Operations; Transporting | 40 | Expired |
| US5376944A | Liquid crystal display device with scanning electrode selection means | Physics | 39 | Expired |
| US6799820B1 | Liquid container having a liquid detecting device | Performing Operations; Transporting | 38 | Expired |
| US5844533A | Gray scale liquid crystal display | Physics | 37 | Expired |
| US5710584A | Ink jet recording head utilizing a vibration plate having diaphragm portions and thick wall portions | Performing Operations; Transporting | 34 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.