Nec

NEC N820. Released 2003, Q4. 4MB storage, no card slot. 110g, 24mm thickness

NEC N21i. Released 2002. No card slot. 120g, 24.7mm thickness

NEC e808y. Released 2003, Q3. 64MB storage, no card slot. 190g, 20mm thickness

NEC DB2000. Released 1999. No card slot. 130g, 19mm thickness

NEC N850. Released 2005, Q1. 26MB storage, no card slot. 95g, 24mm thickness

NEC N500i. Released 2006, February. 54MB storage, no card slot. 99g, 25mm thickness

NEC e338. Released 2004, Q3. No card slot. 114g, 23.3mm thickness