Hiroshi Koshikawa
76Patents
29h-index
86Co-inventors
91Inventor score
Filing activity: Oct 14, 1997 → Apr 4, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6719415B1 | Ink container, valve unit, ink container manufacturing method, ink jet head cartridge and recording apparatus | Performing Operations; Transporting | 134 | Expired |
| US6702427B2 | Liquid container and recording apparatus | Performing Operations; Transporting | 90 | Expired |
| US6598963B1 | Liquid supplying system and liquid supply container | Performing Operations; Transporting | 74 | Expired |
| US6505923B1 | Liquid supply system, liquid supply container and negative pressure generating member container used for the same system, and ink jet recording apparatus using the same system | Performing Operations; Transporting | 73 | Expired |
| US6824258B2 | Liquid container, liquid supply system and ink jet recording apparatus utilizing the same, and method of mounting liquid container on recording apparatus | Performing Operations; Transporting | 73 | Expired |
| US6443567B1 | Liquid ejecting cartridge and recording device using same | Performing Operations; Transporting | 67 | Expired |
| US6742857B2 | Liquid container and ink jet recording apparatus employing liquid container | Performing Operations; Transporting | 64 | Expired |
| US6454400B1 | Liquid container, cartridge including liquid container, printing apparatus using cartridge and liquid discharge printing apparatus | Performing Operations; Transporting | 61 | Expired |
| US6450631B1 | Storing method of ink tank and ink jet head cartridge, and ink tank and storing container used in the same method | Performing Operations; Transporting | 60 | Expired |
| US6511167B1 | Ink container, holder for ink container, ink jet recording apparatus having holder and mounting method for mounting ink container to holder | Performing Operations; Transporting | 50 | Expired |
| US9597884B2 | Ink cartridge and ink jet printer | Performing Operations; Transporting | 46 | Active |
| US6402298B1 | Ink tank module, ink tank coupling member, and inkjet recording apparatus | Performing Operations; Transporting | 45 | Expired |
| US6530654B2 | Ink container, valve unit for ink container, ink jet head cartridge having ink container and ink jet recording apparatus | Performing Operations; Transporting | 44 | Expired |
| US6471343B1 | Ink supply system and ink jet recording apparatus | Performing Operations; Transporting | 41 | Expired |
| US6543886B1 | Liquid supply method, liquid supply container, negative pressure generating member container, and liquid container | Performing Operations; Transporting | 39 | Expired |
| US6390601B1 | Ink tank, ink jet head cartridge, and ink jet recording apparatus | Performing Operations; Transporting | 39 | Expired |
| US6540342B2 | Liquid container and method for disconnecting liquid container | Performing Operations; Transporting | 37 | Expired |
| US6705715B2 | Liquid container, cartridge including liquid container, printing apparatus using cartridge and liquid-discharge printing apparatus | Performing Operations; Transporting | 37 | Expired |
| US6382783B1 | Liquid supply method, capillary force generating member container used for method thereof, and liquid supply container | Performing Operations; Transporting | 36 | Expired |
| US9333758B2 | Liquid storage container and liquid ejection apparatus | Performing Operations; Transporting | 35 | Active |
| US6712458B2 | Liquid container, elastic member for liquid container, and recording apparatus | Performing Operations; Transporting | 35 | Expired |
| US6709092B2 | Recording liquid feed path, recording liquid container, and recording liquid feed device having same, as well as surface modifying method for the recording liquid feed device | Performing Operations; Transporting | 31 | Expired |
| US6550898B2 | Liquid supply system, liquid supply container, capillary force generating member container, ink jet cartridge and ink jet recording apparatus | Performing Operations; Transporting | 31 | Expired |
| US6350025B1 | Ink tank with improved handling, tank holder for installation of such ink tank, ink jet cartridge, and ink jet recording apparatus | Performing Operations; Transporting | 31 | Expired |
| US9840082B2 | Ink cartridge and ink jet printer | Performing Operations; Transporting | 31 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.