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Inventor

Kiyotake Kumazawa

Inventor
Tokyo, JP

Overview

9→
Patents
1987–2014
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

G06Fprimary
G06FElectric digital data processing80%
G05BControl or regulating systems in general10%
H04LTransmission of digital information, e.g. telegraphic communication10%
PatentTitleYear
8,819,205'Content transfer system, content transfer method and home server'20148,775,600'Storage system and data management method in storage system'20148,364,645'Data management system and data management method'20138,239,508'Storage system and data management method in storage system'20127,877,359'Backup executability judging system'20117,865,537'File sharing system and file sharing method'20117,827,149'Electronic appliance service system'20107,730,071'Data management system and data management method'20104,703,242'Control method and apparatus for positioning servo system'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2014Patents assigned to HITACHI LTD (9)· patent assignee history
1987–2014Based in Tokyo, JP· patent location history
2012–2014Patents assigned to IWASAKI MASAAKI (4)· patent assignee history
2012–2014Patents assigned to KUMAZAWA KIYOTAKE (4)· patent assignee history
2012–2014Patents assigned to IWAMI NAOKO (3)· patent assignee history
2012–2014Patents assigned to KODAMA SHOJI (3)· patent assignee history
2014Based in Chiyoda-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD91987–2014
IWASAKI MASAAKI42012–2014
KUMAZAWA KIYOTAKEself42012–2014
IWAMI NAOKO32012–2014
KODAMA SHOJI32012–2014
Locations
LocationPatentsSpan
Tokyo, JP81987–2014
Chiyoda-ku, JP12014