Inventor

YAHAGI MASAHIKO

JP41 patents

⚠️ This page may combine multiple inventors who share the name “YAHAGI MASAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAHAGI MASAHIKO

NEC CORP

Transmission power control apparatus for a mobile communication system

Cellular communicating network and method for locating mobile stations using hierarchically arranged databases

System and method of authenticating a service request in a mobile communication system

Communication restriction control system and communication restriction control method

Multi-network communications system

Cellular telephone exchange system which allows setting of connections between the base station transmitter-receivers and base station controllers base on movement of the mobile station

Mobile communication system and a mobile station paging method

Mobile radio telecommunications system with a battery saving

Mobile communication system having variable coverage areas

CDMA communication system capable of controlling transmission power in each base station without interference

Communication channel assigning system

ISDN-served cell-site stations with means for distributing calls to mobile switching systems

Mobile terminal management system, mobile terminal, agent, and program

Content distribution system, network, and channel switching control method

Mobile communication system and a method thereof

Signal transmission system in a mobile communication network

Base station coverage area control system

Mobile communication system, mobile terminal, base station, radio network controller, information rate control method therefor and program therefor

Connection between mobile stations using different speech coding rules

Mobile communication method and system

Mobile communication method for completing calls utilizing a mobility manager and system therefor

Relocation control of substrate channels

Apparatus and method for mobile communication network which ensures that a user who is out of a service area can receive an incoming call from another service area

Mobile communication system making use of ISDN switched network

Simultaneous paging signal sending system, sending method used therefor, and recording medium on which control program therefor is recorded

Mobile communication system, mobile terminal, base station, radio network controller, information rate control method therefor and program therefor

Mobile communication system and method for determining base station antenna proximity state

Content distribution system, network, and channel switching control method

Content distribution system, method for distributing content and computer program thereof

Content distribution system, method for distributing content and computer program thereof

Mobile communication system capable of avoiding local congestion

User fee charging system in which traffic is determined through sampling operation

YAHAGI MASAHIKO

Broadcast system, broadcast management device, broadcast method, and terminal

Mobile communication system, mobile terminal, base station, radio network controller, information rate control method therefor and program therefor

Mobile communications system and control method thereof

Broadcast system, broadcast control apparatus, and broadcast method

OKAMOTO TSUKASA

Wireless communication system, control apparatus, communication method switching method, and program

Wireless communication system, control apparatus, communication method switching method, and program

Wireless communication system, router apparatus, wireless communication method, and program

KATAYAMA HIDEYUKI

Access method for communication terminal

Timing of synchronizing signal