Seagate Technology was granted a patent for improved heat-assisted magnetic recording.

{
  "signal_id": "9f366084-fe17-58e4-86a2-b22bab93f0ff",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-30T17:27:32+00:00",
  "company": {
    "name": "Seagate",
    "domain": "seagate.com"
  },
  "data": {
    "cpc": [
      {
        "code": "G11B 5/4866"
      },
      {
        "code": "G11B 5/7366"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Engineering",
      "Storage"
    ],
    "detail": "In September 2026 Seagate Technology patented a multilayer optical waveguide for hard-disk recording heads, improving light delivery to nanoscale write components.",
    "summary": "Seagate Technology was granted a patent for improved heat-assisted magnetic recording.",
    "event_at": "2026-09-29",
    "inventors": [
      {
        "name": "Chubing Peng",
        "status": "resolved",
        "is_primary": true,
        "linkedin_url": "https://www.linkedin.com/in/chubing-peng-77b93423"
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-09-29",
    "source_url": "https://patents.google.com/patent/US12749503",
    "cpc_primary": {
      "code": "G11B 5/4866"
    },
    "patent_title": "Waveguide multilayer core structure for use in heat assisted magnetic recording",
    "patent_number": "US12749503",
    "uspto_assignee": "Seagate Technology LLC",
    "patent_abstract": "Described are recording heads for heat assisted magnetic recording that include a light delivery waveguide that delivers light for excitation of a near-field transducer, where the waveguide has a multilayer core. The multilayer core includes a top outer layer nearest to the near-field transducer that has a lower refractive index than an inner layer of multilayer core. The described waveguides having a multilayer core can improve NFT coupling efficiency, which in turn can allow the use of lower optical power density, and thus provide better reliability for recording head components such as the near-field transducer.",
    "precision_class": "structural",
    "invention_explanation": "A recording-head light guide with layered materials that focuses more light onto the tiny heating element used to write data.",
    "technologies_mentioned": [
      "heat-assisted magnetic recording",
      "optical waveguides",
      "hard-disk drives",
      "near-field transducers"
    ]
  }
}

curl https://signals.autobound.ai/v1/signals/9f366084-fe17-58e4-86a2-b22bab93f0ff \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"seagate.com","limit":20}'