Inventor
SHIBATA RYUUJI
JP6 patents
Patents
6 patentsUS5081052AJan 14, 1992
ROM and process for producing the same
HITACHI LTD46 citations92
US4939386AJul 3, 1990
Semiconductor integrated circuit device with MISFETS using two drain impurities
HITACHI LTD28 citations92
US4805143AFeb 14, 1989
Read-only memory
HITACHI LTD27 citations92
US5398206AMar 14, 1995
Semiconductor memory device with data error compensation
HITACHI LTD9 citations73
US5275959AJan 4, 1994
Process for producing ROM
HITACHI LTD11 citations73
US4912674AMar 27, 1990
Read-only memory
HITACHI LTD15 citations73