Junji Ogawa
126Patents
22h-index
109Co-inventors
93Inventor score
Filing activity: Feb 15, 1980 → Sep 1, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9405478B2 | Storage apparatus provided with a plurality of nonvolatile semiconductor storage media and storage control method | Physics | 307 | Active |
| US9183136B2 | Storage control apparatus and storage control method | Physics | 168 | Active |
| US6205076A | Destructive read type memory circuit, restoring circuit for the same and sense amplifier | Physics | 114 | Expired |
| US6247138A | Timing signal generating circuit, semiconductor integrated circuit device and semiconductor integrated circuit system to which the timing signal generating circuit is applied, and signal transmission system | Electricity | 107 | Expired |
| US7069380B2 | File access method in storage-device system, and programs for the file access | Emerging Cross-Sectional Technologies | 95 | Expired |
| US4733376A | Semiconductor memory device having serial data input circuit and serial data output circuit | Physics | 87 | Expired |
| US6185256A | Signal transmission system using PRD method, receiver circuit for use in the signal transmission system, and semiconductor memory device to which the signal transmission system is applied | Physics | 72 | Expired |
| US6484268B2 | Signal transmission system having a timing adjustment circuit | Electricity | 72 | Expired |
| US6493394B2 | SIGNAL TRANSMISSION SYSTEM FOR TRANSMITTING SIGNALS BETWEEN LSI CHIPS, RECEIVER CIRCUIT FOR USE IN THE SIGNAL TRANSMISSION SYSTEM, AND SEMICONDUCTOR MEMORY DEVICE APPLYING THE SIGNAL TRANSMISSION SYSTEM | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5029581A | Laser therapeutic apparatus | Human Necessities | 50 | Expired |
| US6157688A | Signal transmission system for transmitting signals between LSI chips, receiver circuit for use in the signal transmission system, and semiconductor memory device applying the signal transmission system | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5822257A | Semiconductor memory device capable of relieving fixed-failure memory cells and refresh-failure memory cells | Physics | 41 | Expired |
| US5973750A | Television channel selection monitoring apparatus | Electricity | 37 | Expired |
| US7421547B2 | Storage system and storage control method without requiring formatting of storage device | Physics | 33 | Active |
| US4720815A | Semiconductor memory device in form of shift register with two-phase clock signal supply | Physics | 31 | Expired |
| US7136963B2 | Storage capable of cache assignment modification | Physics | 31 | Expired |
| US8832371B2 | Storage system with multiple flash memory packages and data control method therefor | Physics | 30 | Active |
| US4283866A | Convertible bucket attachment capable of excavation and clasping | Fixed Constructions | 27 | Expired |
| US5909142A | Semiconductor integrated circuit device having burn-in test capability and method for using the same | Physics | 26 | Expired |
| US7496781B2 | Timing signal generating circuit with a master circuit and slave circuits | Electricity | 23 | Expired |
| US4752914A | Semiconductor integrated circuit with redundant circuit replacement | Physics | 22 | Expired |
| US4616343A | Semiconductor memory device | Physics | 22 | Expired |
| US4811297A | Boundary-free semiconductor memory device | Physics | 21 | Expired |
| US4740922A | Semiconductor memory device having a read-modify-write configuration | Physics | 19 | Expired |
| US5767712A | Semiconductor device | Electricity | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.