YJ

Yu Hong Ja

RR Read Rite: 4 patents #55 of 240Top 25%
Overall (All Time): #761,931 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6018604 Optical isolator using a beam aperture method 2000-01-25
5973851 Optical air-path isolator using a beam aperture method 1999-10-26
5968626 Transmissive optical and magneto-optical data storage media and method of making the same 1999-10-19
5966363 Optical and magneto-optic data storage systems utilizing transmissive media 1999-10-12
5894465 Transmissive data storage media and an optical head using holographic or acousto-optical deflection 1999-04-13
5742581 Transmissive optical and magneto-optical data storage media 1998-04-21
5740148 Stationary optical data storage system using holographic or acousto-optical deflection 1998-04-14