Inventor

Tadataka Matsubayashi

Inventor

Yokohama, JP

Overview

20→

Patents

2002–2010

Patent span

Physics

Primary field (CPC G)

Patents· 20 as inventor

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

G06Fprimary

G06FElectric digital data processing51%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests49%

PatentTitleYear

7,752,216'Retrieval apparatus, retrieval method and retrieval program'2010 7,689,545'System and method to enable parallel text search using in-charge index ranges'2010 7,620,614'Method, program and apparatus for document retrieval system'2009 7,558,802'Information retrieving system'2009 7,440,938'Method and apparatus for calculating similarity among documents'2008 7,333,983'Method of and an apparatus for retrieving and delivering documents and a recording media on which a program for retrieving and delivering documents are stored'2008 7,231,388'Similar document retrieving method and system'2007 7,200,587'Method of searching similar document, system for performing the same and program for processing the same'2007 7,130,849'Similarity-based search method by relevance feedback'2006 7,054,860'Method and system for retrieving a document and computer readable storage medium'2006 7,039,636'Document retrieval method and document retrieval system'2006 6,865,571'Document retrieval method and system and computer readable storage medium'2005 6,826,567'Registration method and search method for structured documents'2004 6,757,676'Text mining method and apparatus allowing a user to analyze contents of a document set from plural analysis axes'2004 6,738,786'Data display method and apparatus for use in text mining'2004 6,665,667'Method of and an apparatus for retrieving and delivering documents and a recording media on which a program for retrieving and delivering documents are stored'2003 6,665,668'Document retrieval method and system and computer readable storage medium'2003 6,549,898'Method of and an apparatus for retrieving and delivering documents and a recording media on which a program for retrieving and delivering documents are stored'2003 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

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2010Patents assigned to HITACHI LTD (20)· patent assignee history

2002–2004Based in Osaka, JP· patent location history

2003–2008Based in Yokohama, JP· patent location history

2006–2008Based in Kawasaki, JP· patent location history

2006Based in Yokohoma, JP· patent location history

2009–2010Based in Machida, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	20	2002–2010

Locations

Location	Patents	Span
Yokohama, JP	10	2003–2008
Machida, JP	4	2009–2010
Osaka, JP	3	2002–2004
Kawasaki, JP	2	2006–2008
Yokohoma, JP	1	2006