Hiroshi Ishiwata
38Patents
12h-index
42Co-inventors
81Inventor score
Filing activity: May 12, 1986 → May 11, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5751475A | Phase contrast microscope | Physics | 64 | Expired |
| US6031838A | ATM switching system | Electricity | 39 | Expired |
| US4953959A | Objective lens for optical disks | Physics | 32 | Expired |
| US5969855A | Microscope apparatus | Physics | 31 | Expired |
| US5808791A | Microscope apparatus | Physics | 18 | Expired |
| US5357933A | Fuel injection device | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6369375B1 | Detection apparatus having an object gradient detection | Physics | 17 | Expired |
| US4730586A | Fuel injection apparatus for internal combustion engines | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5443047A | Fuel injection system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5566921A | Solenoid valve | Electricity | 14 | Expired |
| US6741356B1 | Method for detecting physical amount of object and optical apparatus using the same | Physics | 14 | Expired |
| US8259167B2 | Scattering medium internal observation apparatus, image pickup system, image pickup method and endoscope apparatus | Human Necessities | 13 | Active |
| US4737086A | Fuel injection pump having variable prestroke mechanism | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US8174686B2 | Focal position determining method, focal position determining apparatus, feeble light detecting apparatus and feeble light detecting method | Physics | 12 | Active |
| US5482016A | Pilot injection control system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6404545B1 | Optical apparatus and microscope | Physics | 10 | Expired |
| US5592915A | Pilot injection controller in fuel injection system and method of controlling pilot injection quantity | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7564622B2 | Methods for implement microscopy and microscopic measurement as well as microscope and apparatus for implementing them | Physics | 8 | Expired |
| US7202439B2 | Small-hole electrical discharge machining device and multiple diesinking-and-small-hole electrical discharge machining device, and method for multiple diesinking-and-small-hole electrical discharge machining with the same device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4902113A | Objective lens and imaging optical system for optical information recording and readout device | Physics | 7 | Expired |
| US6323998A | Microscope apparatus | Physics | 6 | Expired |
| US5460132A | Fuel injection pump and prestroke controller therefor | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US10114207B2 | Apparatus and method for obtaining three-dimensional information | Physics | 4 | Active |
| US5080564A | Prestroke control device for fuel injection pumps | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US5647323A | Fuel injection system | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.