Koji Shirai
27Patents
9h-index
28Co-inventors
75Inventor score
Filing activity: Nov 27, 1985 → May 22, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5422505A | FET having gate insulating films whose thickness is different depending on portions | Electricity | 43 | Expired |
| US6731958B1 | Portable radio communication apparatus with improved power-saving function | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5191401A | MOS transistor with high breakdown voltage | Electricity | 26 | Expired |
| US4878096A | Semiconductor device IC with DMOS using self-aligned back gate region | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5059547A | Method of manufacturing double diffused MOSFET with potential biases | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6307224A | Double diffused mosfet | Electricity | 11 | Expired |
| US4884116A | Double diffused mosfet with potential biases | Electricity | 9 | Expired |
| US5087954A | MOS-type integrated circuit | Electricity | 9 | Expired |
| US5202573A | Dual anode MOS SCR with anti crosstalk collecting region | Electricity | 9 | Expired |
| US8304827B2 | Semiconductor device having on a substrate a diode formed by making use of a DMOS structure | Electricity | 7 | Active |
| US5108944A | Method of manufacturing a semiconductor device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5008724A | Semiconductor device | Electricity | 6 | Expired |
| US5306938A | Lateral MOSFET | Electricity | 6 | Expired |
| US4707720A | Semiconductor memory device | Electricity | 6 | Expired |
| US5122855A | Semiconductor device with latch-up prevention structure | Electricity | 4 | Expired |
| US5677571A | Semiconductor package having reinforced lead pins | Electricity | 3 | Expired |
| US6417558B1 | Semiconductor device having a reduced parasitic capacitance bonding pad structure | Electricity | 2 | Expired |
| US5075754A | Semiconductor device having improved withstanding voltage characteristics | Electricity | 1 | Expired |
| US9508459B2 | Method to prevent stress corrosion cracking of storage canister and storage canister | Physics | 1 | Active |
| US7584011B2 | Method for optimizing an industrial product, system for optimizing an industrial product and method for manufacturing an industrial product | Emerging Cross-Sectional Technologies | 1 | Active |
| US8779523B2 | Semiconductor device | Electricity | 1 | Active |
| US7027810B2 | Method of determining electric field state of mobile station also in view of electric field state of uplink | Electricity | 1 | Expired |
| US7349750B2 | Method for optimizing an industrial product, system for optimizing an industrial product and method for manufacturing an industrial product | Emerging Cross-Sectional Technologies | 1 | Active |
| US11377549B2 | Hot melt composition | Electricity | 0 | Active |
| US8421153B2 | Semiconductor device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.