Hiroki Koike
60Patents
14h-index
67Co-inventors
87Inventor score
Filing activity: Sep 5, 1991 → Jun 1, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5926413A | Ferroelectric memory device | Physics | 86 | Expired |
| US5544106A | Semiconductor memory device with redundant decoder available for test sequence on redundant memory cells | Physics | 76 | Expired |
| US5600587A | Ferroelectric random-access memory | Physics | 66 | Expired |
| US5615144A | Non-volatile ferroelectric memory device with leakage preventing function | Physics | 42 | Expired |
| US5574679A | Memory data protection for a ferroelectric memory | Physics | 41 | Expired |
| US5671174A | Ferroelectric memory device | Physics | 41 | Expired |
| US5694353A | Non-volatile ferroelectric memory device equipped with reference voltage generator for exactly regulating reference voltage to the mid point between two logic level and method of reading out data bit therefrom | Physics | 38 | Expired |
| US7534914B2 | Substituted methyl aryl or heteroaryl amide compounds | Chemistry; Metallurgy | 32 | Active |
| US5617349A | Ferroelectric memory and method for controlling operation of the same | Physics | 30 | Expired |
| US6869960B2 | N-substituted spiropiperidine compounds as ligands for ORL-1 receptor | Chemistry; Metallurgy | 24 | Expired |
| US5668753A | Ferroelectric memory and method for controlling operation of the same | Physics | 23 | Expired |
| US7448487B2 | Transporting apparatus | Physics | 23 | Active |
| US5337282A | Dynamic random access memory device with refreshing system powered with external power source in trimming stage instead of built-in step-down circuit | Physics | 22 | Expired |
| US6288950A | Semiconductor memory device capable of generating offset voltage independent of bit line voltage | Physics | 21 | Expired |
| US5202854A | Semiconductor memory circuit | Physics | 14 | Expired |
| US5392242A | Semiconductor memory device with single data line pair shared between memory cell arrays | Physics | 13 | Expired |
| US6608070B1 | 2,3-substituted indole compounds as anti-inflammatory and analgesic agents | Chemistry; Metallurgy | 13 | Expired |
| US5940316A | Ferroelectric memory device using a ferroelectric material and method of reading data from the ferroelectric memory device | Physics | 12 | Expired |
| US8084476B2 | Substituted methyl aryl or heteroaryl amide compounds | Chemistry; Metallurgy | 12 | Active |
| US8234941B2 | Specimen analyzing apparatus and specimen analyzing method | Physics | 11 | Active |
| US5473195A | Semiconductor integrated circuit device having parallel signal wirings variable in either width or interval | Electricity | 9 | Expired |
| US7723321B2 | Chromane substituted benzimidazole derivatives | Chemistry; Metallurgy | 8 | Active |
| US8329102B2 | Conveying device and sample processing method | Physics | 7 | Active |
| US9466363B2 | Integrated circuit | Electricity | 7 | Active |
| US5557235A | Semiconductor device comprising a grounding pad near a reference signal pad and a capacitor between the pads | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.