LexDanaLexDanabeta
Inventor

Ichiro Tamai

Inventor
Yokohama, JP

Overview

36→
Patents
1999–2016
Patent span
Physics
Primary field (CPC G)

Patents· 36 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer44%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
Y10TTechnical subjects covered by former us classification22%
B82YSpecific uses or applications of nanostructures6%
C23CCoating metallic material5%
PatentTitleYear
9,406,327'Granular media with a high-Hk assist layer for microwave-assisted magnetic recording'20169,058,831'Perpendicular magnetic recording medium with grain boundary controlling layers'20158,771,849'Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the same'20148,705,208'Perpendicular magnetic recording medium (PMRM) and magnetic storage device using the same'20148,703,307'Perpendicular magnetic recording medium and magnetic storage apparatus using the same'20148,592,060'Perpendicular magnetic recording media having low medium noise and systems using the same'20138,440,332'Perpendicular magnetic recording medium and magnetic storage device using the same'20137,875,373'Perpendicular magnetic recording medium and magnetic storage apparatus using the same'20117,701,667'Perpendicular magnetic recording medium and magnetic storage apparatus using the same'20107,651,795'Perpendicular magnetic recording medium and manufacturing of the same'20107,625,646'Perpendicular magnetic recording medium and method of manufacturing it'20097,625,644'Perpendicular magnetic recording medium and manufacturing of the same'20097,556,871'Magnetic recording medium containing first and second recording layers, each layer containing a columnar structure'20097,510,789'Perpendicular magnetic recording media'20097,182,974'Magnetic recording medium and its manufacturing method and magnetic recording system using such a magnetic recording medium'20077,115,329'Magnetic recording medium and magnetic storage device'20067,056,604'Magnetic recording media and magnetic recording system using the same'20067,050,253'Magnetic recording media and magnetic storage apparatus using the same'20067,033,686'Perpendicular magnetic recording medium and method of manufacturing it'20066,924,048'Magnetic recording medium and a magnetic storage apparatus'20056,916,557'Perpendicular magnetic recording media'20056,881,504'Perpendicular magnetic recording medium and magnetic storage apparatus using the same'20056,709,768'Magnetic recording medium and its manufacturing method and magnetic recording system using such a magnetic recording medium'20046,638,648'Perpendicular magnetic recording medium and magnetic storage apparatus using the same'20036,605,374'Magnetic recording medium and magnetic recording system using such a magnetic recording medium'20036,596,420'Magnetic recording media and magnetic recording system using the same'20036,574,060'Magnetic storage apparatus'20036,569,545'Magnetic recording medium and a magnetic storage apparatus'20036,403,240'Magnetic recording media and magnetic recording system using the same'20026,403,242'Magnetic recording medium and magnetic recording system using such a magnetic recording medium'20026,221,508'Magnetic recording media'20016,177,208'Magnetic recording system and magnetic recording medium used therefor'20016,080,476'Magnetic recording medium and magnetic recording system using such a magnetic recording medium'20006,001,447'Longitudinal magnetic recording media and magnetic storage apparatus using the same'19995,922,456'Longitudal magnetic recording medium having a multi-layered underlayer and magnetic storage apparatus using such magnetic recording medium'19995,919,581'Magnetic recording system and magnetic recording medium used therefor'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2005Patents assigned to HITACHI LTD (14)· patent assignee history
1999–2006Based in Yokohama, JP· patent location history
2003–2009Based in Hachioji, JP· patent location history
2004–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (14)· patent assignee history
2006–2016Based in Odawara, JP· patent location history
2009–2015Based in Kanagawa, JP· patent location history
2013–2016Patents assigned to HGST Netherlands BV (7)· patent assignee history
2013–2015Patents assigned to TAMAI ICHIRO (6)· patent assignee history
2013–2015Patents assigned to TANAHASHI KIWAMU (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI GLOBAL STORAGE TECH142004–2010
HITACHI LTD141999–2005
HGST Netherlands BV72013–2016
TAMAI ICHIROself62013–2015
TANAHASHI KIWAMU42013–2015
Locations
LocationPatentsSpan
Yokohama, JP131999–2006
Kanagawa, JP92009–2015
Hachioji, JP92003–2009
Odawara, JP52006–2016