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
Solar cell with hyperpolarizable absorber
Preparation and use of meristematic cells belonging to the Dendrobium phalaenopsis, Ansellia, Polyrrhiza, Vanilla, Cattleya and Vanda genera with high content of phenylpropanoids, hydrosoluble
Harmonic sensor
Power management implementation in an optical link
Deflection device for a scanner with Lissajous scanning
Method and device for generating low-jitter clock
Light-reflective anisotropic conductive paste and light-emitting device
  Randomly Featured Patents
Methods to treat urinary incontinence
Air bridge structures and methods of making and using air bridge structures
Video structuring by probabilistic merging of video segments
RFID tag mounting package and manufacturing method thereof
Intelligent data inventory and asset management system method and apparatus
Externally adjustable load plus pump control assembly
Non-dispersive infrared gas analyzer
Cervical plate/screw system for immobilizing vertebral bodies
Earth-boring particle-matrix rotary drill bit and method of making the same
HA-1 antigen