Seiji Sawada
49Patents
18h-index
54Co-inventors
84Inventor score
Filing activity: Apr 21, 1993 → Jun 4, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5404338A | Synchronous type semiconductor memory device operating in synchronization with an external clock signal | Mechanical Engineering; Lighting; Heating | 165 | Expired |
| US5815462A | Synchronous semiconductor memory device and synchronous memory module | Physics | 121 | Expired |
| US5814685A | Ink jet recording liquid | Emerging Cross-Sectional Technologies | 113 | Expired |
| US5471430A | Test circuit for refresh counter of clock synchronous type semiconductor memory device | Physics | 76 | Expired |
| US5587950A | Test circuit in clock synchronous semiconductor memory device | Physics | 61 | Expired |
| US5772746A | Ink jet recording liquid | Chemistry; Metallurgy | 60 | Expired |
| US5511029A | Test circuit in clock synchronous semiconductor memory device | Physics | 58 | Expired |
| US5748560A | Synchronous semiconductor memory device with auto precharge operation easily controlled | Physics | 56 | Expired |
| US5517462A | Synchronous type semiconductor memory device operating in synchronization with an external clock signal | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US6426900B1 | Synchronous semiconductor memory device performing data output in synchronization with external clock | Electricity | 39 | Expired |
| US5716435A | Recording fluid for ink-jet printing and process for the production thereof | Chemistry; Metallurgy | 37 | Expired |
| US5903514A | Multi-bank synchronous semiconductor memory device | Physics | 36 | Expired |
| US5808961A | Internal clock generating circuit for clock synchronous type semiconductor memory device | Physics | 32 | Expired |
| US5365481A | Semiconductor memory device having test mode and method of setting test mode | Physics | 29 | Expired |
| US5972087A | Water-based ink-jet recording fluid | Chemistry; Metallurgy | 28 | Expired |
| US6031024A | Inkjet recording liquid and process for the production thereof | Chemistry; Metallurgy | 26 | Expired |
| US6894945B2 | Clock synchronous semiconductor memory device | Physics | 25 | Expired |
| US5703831A | Synchronous semiconductor memory device having internal circuitry enabled only when commands are applied in normal sequence | Physics | 20 | Expired |
| US5691661A | Pulse generating circuit and a semiconductor memory device provided with the same | Electricity | 18 | Expired |
| US7035366B2 | Delay locked loop circuit and its control method | Electricity | 15 | Expired |
| US6002615A | Clock shift circuit and synchronous semiconductor memory device using the same | Physics | 14 | Expired |
| US6014340A | Synchronous semiconductor memory device having internal circuitry enabled only when commands are applied in normal sequence | Physics | 13 | Expired |
| US5465063A | Pulse generating circuit with temperature compensation | Electricity | 12 | Expired |
| US6049488A | Clock synchronous semiconductor memory device capable of preventing outputting of invalid data | Physics | 12 | Expired |
| US5818768A | Operation mode setting circuit in semiconductor device | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.