P

Inventor

SUMIYOSHI TAKASHI

JP31 patents
⚠️ This page may combine multiple inventors who share the name “SUMIYOSHI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

21 patents
US5638508AJun 10, 1997

Method and a system for processing a log record

HITACHI LTD197 citations97
US5274809ADec 28, 1993

Task execution control method for a multiprocessor system with enhanced post/wait procedure

HITACHI LTD145 citations97
US5065311ANov 12, 1991

Distributed data base system of composite subsystem type, and method fault recovery for the system

HITACHI LTD120 citations96
US5333314AJul 26, 1994

Distributed data base system of composite subsystem type, and method of fault recovery for the system

HITACHI LTD104 citations95
US7333488B2Feb 19, 2008

Multicast delivery control apparatus and method

HITACHI LTD26 citations92
US5377352ADec 27, 1994

Method of scheduling tasks with priority to interrupted task locking shared resource

HITACHI LTD48 citations92
US5329628AJul 12, 1994

Database system providing direct access for reads and indirect locked access for writes and reads in which an error was detected in previous attempt

HITACHI LTD27 citations92
US4652940AMar 24, 1987

Method of identifying magnetic tape as tape for journal

HITACHI LTD41 citations92
US7826393B2Nov 2, 2010

Management computer and computer system for setting port configuration information

HITACHI LTD10 citations83
US10629222B2Apr 21, 2020

Sound signal procession method and device

HITACHI LTD17 citations82
US4733349AMar 22, 1988

Method for recording and managing processing history information using a plurality of storage devices

HITACHI LTD22 citations82
US10732643B2Aug 4, 2020

Control system, moving object, and control apparatus

HITACHI LTD2 citations72
US9989626B2Jun 5, 2018

Mobile robot and sound source position estimation system

HITACHI LTD6 citations72
US5062046AOct 29, 1991

Multiple processor system having a correspondence table for transferring processing control between instruction processors

HITACHI LTD9 citations72
US10691898B2Jun 23, 2020

Synchronization method for visual information and auditory information and information processing device

HITACHI LTD2 citations68
US7801060B2Sep 21, 2010

Network management apparatus and network system

HITACHI LTD3 citations62
US11605377B2Mar 14, 2023

Dialog device, dialog method, and dialog computer program

HITACHI LTD0 citations56
US12499905B2Dec 16, 2025

Emotion recognition system and emotion recognition method

HITACHI LTD0 citations52
US12086731B2Sep 10, 2024

Workshop assistance system and workshop assistance method

HITACHI LTD0 citations48
US7864703B2Jan 4, 2011

Packet communication device

HITACHI LTD0 citations42
US10339381B2Jul 2, 2019

Control apparatus, control system, and control method

HITACHI LTD0 citations40

SHIMADZU CORP

6 patents

SUMITOMO ELECTRIC INDUSTRIES

3 patents

SUMIYOSHI TAKASHI

1 patent