Inventor
UKAI HIRATAKA
JP8 patents
⚠️ This page may combine multiple inventors who share the name “UKAI HIRATAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
7 patentsUS6472651B1Oct 29, 2002
Optical information storage device having phase compensating mechanism and polarization plane rotating mechanism
FUJITSU LTD61 citations94
US6411581B1Jun 25, 2002
Optical memory apparatus having planar printed circuit board mounted therein
FUJITSU LTD20 citations90
US6141309AOct 31, 2000
Optical memory apparatus having a supporting base with an integral, fixed optical part mounting portion
FUJITSU LTD20 citations90
US6167018ADec 26, 2000
Optical information storage apparatus having cylindrical lens for eliminating astigmatism generated by polarization beam splitter and newly generating astigmatism
FUJITSU LTD11 citations73
US6131840AOct 17, 2000
Mechanism for preventing uneven take-up of tape
FUJITSU LTD7 citations72
US6388972B1May 14, 2002
Optical memory apparatus having turn table unit mounted by a plate having an integral guide portion to a supporting base
FUJITSU LTD7 citations71
US6738334B1May 18, 2004
Optical memory apparatus having a base with a unitary and integral optical component mounting portion and a precision mounting surface for mounting an optical component
FUJITSU LTD3 citations60