Inventor
Donghong Li
Inventor
Pleasanton, CA, US
Overview
Patents· 26 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 transducer30%
Y10TTechnical subjects covered by former us classification26%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C08LCompositions of macromolecular compounds3%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
E04BGeneral building constructions3%
H01FMagnets3%
A61KPreparations for medical, dental or toiletry purposes2%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%
PatentTitleYear
11,086,174Display substrate, display module and control method202110,662,214Compound of 4'-thionucleoside, as well as preparation method therefor, pharmaceutical composition thereof and application thereof20209,934,794Writer having a recessed trailing shield and nonmagnetic refill20189,738,796'Acoustically transparent coating'20179,683,143'Joint finishing adhesive'20179,520,146'Method of forming a fully wrapped-around shielded PMR writer pole'20169,508,363'Method for fabricating a magnetic write pole having a leading edge bevel'20169,082,426'Methods for manufacturing electronic lapping guides for writer heads that closely track pole formation of the writer heads'20159,042,052'Magnetic writer having a partially shunted coil'20159,001,467'Method for fabricating side shields in a magnetic writer'20158,982,508'Method for providing a side shield for a magnetic recording transducer'20158,914,969'Method for providing a monolithic shield for a magnetic recording transducer'20148,908,333'Shield designed for middle shields in a multiple sensor array'20148,835,546'Finishing glaze for decorative texturing medium'20148,813,324'Method for providing a piezoelectric multilayer'20148,533,937'Method of forming a fully wrapped-around shielded PMR writer pole'20138,419,954'Method for providing a side shield for a magnetic recording transducer'20138,284,517'Perpendicular magnetic recording head'20128,166,632'Method for providing a perpendicular magnetic recording (PMR) transducer'20128,136,224'Method and system for providing a perpendicular magnetic recording head utilizing a mask having an undercut line'20128,074,345'Method of measuring a bevel angle in a write head'20117,975,366'Method of manufacturing a magnetic write head mold for neck height equalization'20117,950,138'Method of forming a pole tip region in a main pole layer of a perpendicular magnetic recording (PMR) write head'20117,672,079'Pole width control on plated bevel main pole design of a perpendicular magnetic recording head'20107,394,621'Using bilayer lithography process to define neck height for PMR'20087,313,863'Method to form a cavity having inner walls of varying slope'2008Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2011Patents assigned to HEADWAY TECHNOLOGIES INC (5)· patent assignee history
2008–2012Based in Fremont, CA, US· patent location history
2008–2011Based in Milpitas, CA, US· patent location history
2011–2018Patents assigned to WESTERN DIGITAL FREMONT LLC (14)· patent assignee history
2011–2014Patents assigned to LI DONGHONG (8)· patent assignee history
2011–2018Based in Pleasanton, CA, US· patent location history
2012Patents assigned to HONG LIUBO (3)· patent assignee history
2012Patents assigned to SHEN YONG (3)· patent assignee history
2014–2017Based in Buffalo Grove, IL, US· patent location history
2021Based in Xiamen, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTERN DIGITAL FREMONT LLC | 14 | 2011–2018 |
| LI DONGHONGself | 8 | 2011–2014 |
| HEADWAY TECHNOLOGIES INC | 5 | 2008–2011 |
| HONG LIUBO | 3 | 2012 |
| SHEN YONG | 3 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pleasanton, California, US | 15 | 2011–2018 |
| Fremont, California, US | 4 | 2008–2012 |
| Buffalo Grove, Illinois, US | 3 | 2014–2017 |
| Milpitas, California, US | 2 | 2008–2011 |
| Xiamen, CN | 1 | 2021 |