Inventor
JOHN T. CONTRERAS
Inventor
US
Overview
Patents· 12 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 transducer61%
H03FAmplifiers11%
G01KMeasuring temperature6%
G06FElectric digital data processing6%
H01LSemiconductor devices6%
H03MCoding6%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%
PatentTitleYear
12,445,142Channel circuit with asynchronous sampling from an oversampled analog-to-digital converter202512,347,472Positive laser bias electrical control architecture for dark laser heating in heat assisted magnetic recording202512,347,467DC and synchronized energy assisted perpendicular magnetic recording (EPMR) driver circuit for hard disk drive (HDD)202512,347,465Differential sense of embedded contact sensor (ECS) and near-field temperature sensor (NTS) utilizing chopping amplifier202512,183,372System controlled RF signal source architecture with transducer near pole-tip for microwave assisted magnetic recording202412,140,485Alternating-bias signal resistance detection for resistive temperature detectors in disk drives202412,125,509Dark laser heating by positive pulse biasing in heat assisted magnetic recording202412,100,422Multiple-actuator HDD assembly utilizing multiple-preamp architecture with single point termination202411,615,804Disk drive biasing two write assist elements using three terminal control circuitry202311,361,786Data storage device employing amplifier feedback for impedance matching202211,362,063Semiconductor device with die-skipping wire bonds202211,295,764Data storage device transmitting configuration data to a preamp circuit over a read line2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to WESTERN DIGITAL TECH INC (12)· patent assignee history
2022–2025Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTERN DIGITAL TECH INC | 12 | 2022–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 12 | 2022–2025 |