Inventor

SHIMBO ISAO

JP3 patents

Patents

3 patents

US5379451AJan 3, 1995

Mobile communication system and location registration method in mobile communication system

HITACHI LTD299 citations98

US5838770ANov 17, 1998

Portable telephone system

HITACHI LTD19 citations90

US5579370ANov 26, 1996

Portable telephone system

HITACHI LTD27 citations90