Inventor

Yasushi Kawashimo

Inventor

Hirakata, JP

Overview

1999–2006

Patent span

Physics

Primary field (CPC G)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary

G06FElectric digital data processing50%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests50%

PatentTitleYear

7,039,636'Document retrieval method and document retrieval system'2006 6,826,567'Registration method and search method for structured documents'2004 6,496,820'Method and search method for structured documents'2002 6,473,754'METHOD AND SYSTEM FOR EXTRACTING CHARACTERISTIC STRING, METHOD AND SYSTEM FOR SEARCHING FOR RELEVANT DOCUMENT USING THE SAME, STORAGE MEDIUM FOR STORING CHARACTERISTIC STRING EXTRACTION PROGRAM, AND STORAGE MEDIUM FOR STORING RELEVANT DOCUMENT SEARCHING PROGRAM'2002 6,003,043'Text data registering and retrieving system including a database storing a plurality of document files therin and a plural-character occurrence table for a text index and an update text buffer to retrieve a target document in cooperation with the database'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2006Patents assigned to HITACHI LTD (5)· patent assignee history

1999–2006Based in Hirakata, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	5	1999–2006

Locations

Location	Patents	Span
Hirakata, JP	5	1999–2006