Ryuji Imai
10Patents
8h-index
17Co-inventors
65Inventor score
Filing activity: Oct 2, 1985 → Sep 11, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5468997A | Integrated circuit package having a multilayered wiring portion formed on an insulating substrate | Electricity | 79 | Expired |
| US5901050A | Wired base plate and package for electronic parts | Electricity | 63 | Expired |
| US5479138A | Multi-layer wiring board | Electricity | 33 | Expired |
| US5331204A | Integrated circuit package in which impendance between signal pads and signal lines is matched by reducing the size of a ground plane | Electricity | 24 | Expired |
| US4685357A | Continuously variable transmission hydraulic control system having two pressure regulating valves | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5442145A | Input/output terminal for electronic circuit device | Electricity | 13 | Expired |
| US4642069A | Hydraulic control system for continuously variable transmission | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5196089A | Multilayer ceramic substrate for mounting of semiconductor device | Electricity | 9 | Expired |
| US5721453A | Integrated circuit package | Electricity | 8 | Expired |
| US6941210B2 | Apparatus and method for controlling ignition timing during shift in vehicular automatic transmission | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.