Atmel:
AT24C01B - 01B
AT24C02B - 02B
AT24C04B - 04B
AT24C08B - 08B
AT24C16B - 16B
AT24C32C - 32C
AT24C64C - 64C
AT24C128B - 2DB
AT24C128C - 2DC
AT24C256B - 2EB
AT24C256C - 2EC
AT24C512B - 2FB
AT24C1024B - 2GB
AT25C512 - 5F
AT93C46D - 46D
AT93C46E - 46E
AT34C02C - 34C
AT24HC02B - H2B 
AT24HC04B - H4B

A21SC=S200=24C02
95P08=95040
16811G=Yazaki AD=93c46
Yazaki AB = 59c11 = ER5911
ST632565=at25c04

Seiko Instruments:
S-29130 = S130 = 93c46 = AD0970
S-29131 = S131 = 93c46-Rotate
S-29220 = S220 = 93c56 = RA57 ?
S-29221 = S221 = 93c56-Rotate
S-29230 = S230 = 93c56
S-29231 = S231 = 93c56-Rotate
S-29330 = S330 = 93C66 = B58608
S-29430 = S430 = 93C76
S-29530 = S530 = 93C86
S-29630 = S630 = 4096Bytes

NEC:
uPC6252 = 24c02
uPC6253 = 24c01
uPC6254 = 24c04

GRO-001 - 93C46
GRN-001 - 93C46
GRN-002 - 93C46
GRS-003 - 24C02
GRX-003 - 24C02
GRN-004 - 24C04
GRN-008 - 24C04
GRX-006 - 24C04
GRX-007 - 24C04

77002 - 24C16
77011MC - 93C46
77017MC - 93C46

9355092 - 24C04
9355093 - 24C08
9375365 - 24C16