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
Method and apparatus for radio antenna frequency tuning
Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system
Large scale data storage system with fault tolerance
Electronic system auto-mute control circuit and control method thereof
Managing deduplication density
Stool
Vibration power generator and vibration power generation device, and communication device and electronic equipment with vibration power generation device
  Randomly Featured Patents
Measuring system for recording absolute angular or position values
Circuit substrate including printed circuit board having heat-shielding portion
2,3-dihydro-1-(2,2,2,-trifluoroethyl)-2-oxo-5-phenyl-1H-1,4-benzo diazepines
Decoupling unit for bus systems that blocks abnormal dominant signals from passing between connected bus systems
Electronic instrument and reproduction system
Polyphenylene ether/polystyrene blends with improved processability
Ultraviolet curable epoxy-polyester powder paints
Method of making thermoplastic composite layered squeeze tube
Latch assembly
Two-stage adjustable hydrotherapeutic jet and method