Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Takahashi; Toyokazu
Address:
Tokyo, JP
No. of patents:
2
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
Correlating trace data streams
Systems and methods for controlling phasing of advancing substrates in absorbent article converting lines
Light-emitting diode package and method for manufacturing the same
Liquid crystal panel and liquid crystal display
Three-dimensional holographic display using active shutter
Method and system for parallelizing data copy in a distributed file system
Prioritizing application data for transmission in a wireless user device
  Randomly Featured Patents
Pesticidal substituted 2-hydroxylaminopyrimidinyl phosphorus esters
Laser annealing method and laser annealing device
System and method for object identification and behavior characterization using video analysis
Position selectable delay generator for mechanism trigger
Peptides suitable for use in antigen specific immunosuppressive therapy
Foam buffing pad of string-like construction
Latch structure
Insulated skylight panel
Video signal digital slicing circuit
Apparatus for manipulating a workpiece or the like