Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Tachikawa; Yoshihiko
Address:
Tokyo, JP
No. of patents:
3
Patents:












Patent Number Title Of Patent Date Issued
6008487 Optical-fiber inspection device December 28, 1999
In the primary invention of this application, an optical-fiber inspection device which detects the distance to a reflection point within the DUT and the amount of reflected light by dividing into two a laser beam which is possible to be frequency-swept, making one of the divided light be
5933235 Optical spectrum analyzer and spectrometer August 3, 1999
A first invention of the present application is an optical spectrum analyzer comprising a spectrometer apparatus an arithmetic unit for calculating the center wavelength from output signals from photo detector devices of a device array included in the spectrometer apparatus and from
5844235 Optical frequency domain reflectometer for use as an optical fiber testing device December 1, 1998
In the primary invention of this application, an optical-fiber inspection device which detects the distance to a reflection point within the DUT and the amount of reflected light by dividing into two a laser beam which is possible to be frequency-swept, making one of the divided light be










 
 
  Recently Added Patents
Electronic control apparatus
Laser receiver for detecting a relative position
Phenethanolamine derivatives for treatment of respiratory diseases
Pulsed plasma with low wafer temperature for ultra thin layer etches
Monitoring system
Request routing based on class
Methods and systems for aggregating and graphically representing information associated with a telecommunications circuit
  Randomly Featured Patents
Electro-hydraulic lift mechanism for lawn mower deck
Sensor processor for high-speed mail-handling machine
Method of operating a photometric analysis apparatus
Battery charger with improved terminal protection
2-Oxabicyclooctane derivatives in augmenting or enhancing the aroma or taste of foodstuffs
Method of simulated engraved printing
Method for the treatment of ammonia-containing waste water
X-ray fluoroscopy system for reducing dosage employing iterative power ratio estimation
Fruit-flavored candy product
Methods for fabricating magnetic transducers using post-deposition tilting