Resources Contact Us Home
Takahashi; Toyokazu
Tokyo, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8125876 Objective lens, optical pickup apparatus using the same, optical recording/reproduction apparatu February 28, 2012
Provided is an objective lens for which expressions 0.83<(p.sub.M/p.sub.L)<1.17 and 0.83<(p.sub.M/p.sub.T)<1.17 or expressions 0.80<(p.sub.M/p.sub.L)<1.20 and 0.86<(p.sub.M/p.sub.T)<1.14 are satisfied, where p.sub.L is the ratio of fifth-order spherical aberra
7826328 Optical pickup device and optical disk apparatus using the same November 2, 2010
An optical pickup device includes: a light source that emits a light beam; a divergence-angle converting lens that converts an angle of divergence of the light beam emitted from the light source and emits the light beam; and an object lens displaceable in a tracking direction that receiv

  Recently Added Patents
Method for controlled layer transfer
Apparatus and method of managing radio bearer in wireless communication system
Light-reflective anisotropic conductive paste and light-emitting device
Method for generating optical codes for a print-context
Methods of establishing virtual circuits and of providing a virtual private network service through a shared network, and provider edge device for such network
Fractal method for detecting and filling data gaps within LiDAR data
Integrated circuit packaging system with interconnects and method of manufacture thereof
  Randomly Featured Patents
Optical systems using volume holographic elements to provide arbitrary space-time characteristics, including frequency-and/or spatially-dependent delay lines, chirped pulse compressors, pulse
Protective shoe
Brochure inventory and distribution tracking system
Apparatus for melt mixing synthetic polymers
Microbial 11.alpha.-hydroxylation of steroids
Surface display assemblies
System for damping engine speed oscillations
Foldable picnic table with telescoping pedestals and bench supports
Multipurpose learning device