Ichiro Hashimoto
18Patents
8h-index
44Co-inventors
68Inventor score
Filing activity: May 10, 1985 → Jan 5, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4707129A | Three dimensional position measurement system using an interferometer | Physics | 57 | Expired |
| US5574322A | Motor, a printer having such a motor and a disk drive system having such a motor | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5239218A | Step motor and method for recording position signal of motor rotor | Electricity | 16 | Expired |
| US4890024A | Low-speed high-torque motor | Electricity | 14 | Expired |
| US5469008A | Motor with a bearing lubricated by magnetic fluid | Physics | 14 | Expired |
| US7420758B2 | Head system, recording and reproduction system, and magnetic recording method | Physics | 13 | Expired |
| US5541462A | Rotary body bearing apparatus, motor and polygon mirror motor | Electricity | 12 | Expired |
| US4998034A | Low speed high torque motor with production method | Electricity | 8 | Expired |
| US6515833B1 | Rotating drum assembly and magnetic recording/reproducing apparatus having a tape-contact piece | Physics | 6 | Expired |
| US5033344A | Pipe cutting apparatus | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7225144B2 | Server device and recording medium for same | Physics | 4 | Expired |
| US5060500A | Apparatus for automatically forming a pointed end of raw pipe to be drawn | Performing Operations; Transporting | 4 | Expired |
| US5069095A | Pipe centering apparatus | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6751057B2 | Magnetic recording/reproducing apparatus and rotary head drum device | Physics | 0 | Expired |
| US6771471B2 | Rotary head drum apparatus and magnetic recording and playback apparatus | Physics | 0 | Expired |
| US5391851A | Multi-point welding method and catalyst support produced thereby | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US5069055A | Automatic plug-inserting apparatus in a pipe-drawing equipment | Performing Operations; Transporting | 0 | Expired |
| US7206996B2 | Portal site providing system | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.