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Inventor

Pierre Asselin

Inventor
Richfield, MN, US

Overview

16→
Patents
1983–2021
Patent span
Physics
Primary field (CPC G)

Patents· 16 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 transducer50%
G02BOptical elements, systems or apparatus19%
B82YSpecific uses or applications of nanostructures8%
D04HMaking textile fabrics, e.g. from fibres or filamentary material8%
Y10TTechnical subjects covered by former us classification8%
G01RMeasuring electric variables4%
H02KDynamo-electric machines4%
PatentTitleYear
10,971,179Compact mode converter having first and second straight portions for a heat-assisted magnetic recording device20219,946,016Waveguide with shaped assistant layer20189,633,683'Mode conversion via tapered waveguide'20179,558,764'Waveguide of a write head with reduced cross sectional area proximate a near-field transducer'20179,449,627'Angled waveguide'20169,396,749'Waveguide core layer with reduced downtrack thickness proximate a near-field transducer'20169,218,836'Heat assisted magnetic recording head having dual waveguides'20159,013,815'Automated cluster size measurement'20158,873,352'Light mitigation layer between write pole and waveguide'20148,625,213'Automated cluster size measurement'20146,356,410'Method and structure for defining track width on a recording head'20026,105,238'Method and structure for defining track width on a recording head'20005,604,651'Read head with 4-point magnetoresistive sensing'19975,296,767'Efficient magnetic motor armatures'19945,031,289'Transfer device for compression and introduction device for tufting machine'19914,384,393'Felting machine for non-woven fabrics'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1991Patents assigned to ASSELIN ETS (2)· patent assignee history
1983–1991Based in Elbeuf, FR· patent location history
1994Patents assigned to APPLIED MAGNETICS CORP (1)· patent assignee history
1994–1997Based in Santa Barbara, CA, US· patent location history
1997Patents assigned to APPLIED MAGENTICS CORP (1)· patent assignee history
2000–2002Patents assigned to MATSUSHITA KOTOBUKI ELECT IND (2)· patent assignee history
2000–2002Based in Westminster, CO, US· patent location history
2014–2021Patents assigned to SEAGATE TECHNOLOGY LLC (10)· patent assignee history
2014–2021Based in Richfield, MN, US· patent location history
2014–2015Based in Edina, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEAGATE TECHNOLOGY LLC102014–2021
ASSELIN ETS21983–1991
MATSUSHITA KOTOBUKI ELECT IND22000–2002
APPLIED MAGENTICS CORP11997
APPLIED MAGNETICS CORP11994
Locations
LocationPatentsSpan
Richfield, Minnesota, US82014–2021
Edina, Minnesota, US22014–2015
Westminster, CO, US22000–2002
Santa Barbara, California, US21994–1997
Elbeuf, FR21983–1991