Hitoshi Igarashi
96Patents
11h-index
99Co-inventors
81Inventor score
Filing activity: Feb 9, 1977 → May 19, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6250750A | Ink cartridge and loading mechanism for ink cartridge | Performing Operations; Transporting | 104 | Expired |
| US4331477A | Porous titanium-aluminum alloy and method for producing the same | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6270184A | Recording head position adjusting mechanism in ink jet recording apparatus | Performing Operations; Transporting | 23 | Expired |
| US6619778B2 | Carriage motor control in a printer | Performing Operations; Transporting | 19 | Expired |
| US7237858B2 | Printing apparatus, printing method, storage medium, and computer system | Performing Operations; Transporting | 14 | Expired |
| US6809489B1 | Print control unit and print control method, and storage medium storing print control program | Performing Operations; Transporting | 13 | Expired |
| USD944319S1 | Printing workroom interior | General | 12 | Active |
| US6747429B2 | Print control system, print control method, and recording medium having recorded print control program | Performing Operations; Transporting | 12 | Expired |
| US7401879B2 | Liquid ejection apparatus | Performing Operations; Transporting | 11 | Expired |
| USD316563S | Printer | General | 11 | Expired |
| US6528962B1 | Control unit and method for controlling motor for use in printer, and storage medium storing control program | Performing Operations; Transporting | 11 | Expired |
| US5506063A | Soft magnetic film of iron and process of formation thereof | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6877837B1 | Control unit and method for controlling motor for use in printer, and storage medium storing control program | Physics | 9 | Expired |
| US6390698B1 | Apparatus and method of detecting home position of carriage and storage medium storing home position detection program | Performing Operations; Transporting | 9 | Expired |
| US5796445A | Stress mitigating method for video display terminal | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8328318B2 | Printing method and printing apparatus | Performing Operations; Transporting | 8 | Active |
| US4517727A | Method of producing a porous body for electrolytic capacitor having a lead wire | Electricity | 8 | Expired |
| US4961659A | Printer case | Performing Operations; Transporting | 7 | Expired |
| US6450612B2 | Recording head position adjusting mechanism in ink jet recording apparatus | Performing Operations; Transporting | 7 | Expired |
| US4086857A | Sectional assembly | Human Necessities | 7 | Expired |
| US8147023B2 | Printing apparatus and printing method | Performing Operations; Transporting | 7 | Active |
| US5769547A | Thermal printer with pad for cleaning transfer sheet | Performing Operations; Transporting | 7 | Expired |
| US8419154B2 | Motor control device, fluid ejection device, and motor control method | Performing Operations; Transporting | 7 | Active |
| US7731330B2 | Position detecting device, liquid ejecting apparatus and method of detecting smear of scale | Performing Operations; Transporting | 7 | Active |
| US4468719A | Porous body for a solid electrolytic capacitor and process for producing the same | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.