Inventor

NAKANO YUKIO

JP85 patents

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

NAKANO YUKIO

HITACHI LTD

System and method for implementing hash-based load-balancing query processing in a multiprocessor database system

System and method for implementing parallel operations in a database management system

Database management system and method for query process for the same

Multimedia bidirectional broadcast system

Database management system with rebalance architectures

Database management system and query operation therefor, including processing plural database operation requests based on key range of hash code

Communication network system and method of controlling a communication network

Optical fiber transmission system and supervision method of the same

Self-healing network, method for transmission line switching thereof, and transmission equipment thereof

Querying parallel database system that execute stored procedures using abstract data type attributes, retrieving location information of data, sub-data between first and second server

Multiplex transmission apparatuses, multiplex transmission networks, and operation method therefor

Self-healing network, method for transmission line switching thereof, and transmission equipment thereof

Parallel database management method and parallel database management system

Database processing method and apparatus using handle

Parallel database system retrieval method of a relational database management system using initial data retrieval query and subsequent sub-data utilization query processing for minimizing query time

Optical transmission system constructing method and system

Failure restoration method in a mesh network

Multiplex transmission apparatuses, multiplex transmission networks, and operation method therefor

Multiplex type transmitting apparatus

Method of processing inclusively STM signals and ATM signals and switching system employing the same

ATM switch and control method thereof

Switch for self-healing ring

Optical wavelength multiplexing communication system

Method and apparatus for transmission of failure information of virtual path in ATM network

Hit-less protection switching method and apparatus for ATM transmission lines

Method of modifying virtual path capacity

Parallel transmission system

Database system

Database processing method and apparatus for processing data by analyzing query input

Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code

Database processing method, apparatus for implementing same, and medium containing processing program therefor

Routine executing method in database system

Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal

Routine executing method in database system

Optical wavelength multiplexing system

Optical repeater and optical transmitter

Routing method and apparatus for switching between routing and conversion tables based on selection information included in cells to be routed

Transmission method and circuit of virtual container using asynchronous transfer mode

Atm switch and atm multiplexer

Method of phase-converting frame and apparatus using same

Diagnostic method of equipment and system using the same

Input/output processing method in a database management system

Method, system and program for creating an index

Database processing method and apparatus using handle

ATM switch and control method thereof

Optical multiplex transmission equipment and method

Method of modifying virtual path capacity

Circuit switching method and apparatus for time division network with various transmission speeds

NIPPON TELEGRAPH & TELEPHONE

High throughput supervisory system for ATM switching systems transporting STM-N signals

CENTRAL RES INST ELECT

System and method for estimating power consumption of electric apparatus, and abnormality alarm system utilizing the same