Featured patents

Optical Disc and Optical Disc Device
US 08842509 B2, Sept. 23, 2014, Of record carrier, Masaharu Ogawa et al. / Mitsubishi Electric Corporation (Tokyo, JP)
An optical data storage medium comprising:…

Method for Controlling Writing in a Thermally-Assisted Recording (TAR) Disk Drive With Thermal Fly-Height Control
US 08743667 B1, June 3, 2014, Near field optic, Hans Juergen Richter et al. / HGST Netherlands B.V. (Amsterdam, NL)
A method for writing to a magnetic recording layer in a thermally-assisted…

Topographic Feedforward System
US 08737183 B1, May 27, 2014, Transducer location indicating, Roderick A. Hyde et al. / Elwha, LLC (Bellevue, US)
A system for controlling a read/write head configured to interact…

Read Signal Evaluation Method, Information Recording and Reading Method, and Information Recording and Reading Apparatus
US 08705328 B2, April 22, 2014, For phase, timing, or rate processing, Atsushi Kikugawa / Hitachi Consumer Electronics Co., Ltd. (Tokyo, JP)
A signal evaluation method comprising the steps of:…

Adhesive Structure of Optical Device, Adhesion Method, and Optical Pickup Device
US 08711666 B2, April 29, 2014, Having particular optical element or particular placement thereof in radiation beam path to or from storage medium, Hiroaki Furuichi et al. / Hitachi Media Electronics Co., Ltd. (Iwate, JP)
An adhesive structure of an optical device, comprising:…

High Data Density Optical Recording Medium
US 08693301 B2, April 8, 2014, Electrical modification or sensing of storage medium, Joachim Knittel et al. / Thomson Licensing (Boulogne-Billancourt, FR)
A disk-shaped rotatable optical recording medium, comprising:…

Objective Lens, Optical Pickup Apparatus, and Optical Information Recording Reproducing Apparatus
US 08599671 B2, Dec. 3, 2013, Lens section, Kentarou Nakamura / Konica Minolta Opto, Inc. (Tokyo, JP)
An objective lens for use in an optical pickup apparatus which comprises…

Optical Read/Write Apparatus
US 08582408 B2, Nov. 12, 2013, Energy producing device, Yuichi Takahashi et al. / Panasonic Corporation (Osaka, JP)
An optical read/write apparatus comprising:…

Energy-Assisted Magnetic Recording Head Having Multiple Cores of Different Lengths
US 08588039 B1, Nov. 19, 2013, Near field optic, Kuochou Tai et al. / Western Digital (Fremont), LLC (Fremont, US
A waveguide for use in an energy assisted magnetic recording (EAMR) transducer…

Optical Disc Apparatus and Recording Method
US 08547806 B2, Oct. 1, 2013, Monitoring signal error or verification, Tomo Kishigami et al. / Mitsubishi Electric Corporation (Tokyo, JP)
An optical disc apparatus comprising:…

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