Inventor
KOJIMA KOUKI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “KOJIMA KOUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
8 patentsUS5923636AJul 13, 1999
Optical pickup
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations92
US5422870AJun 6, 1995
Optical pickup for information recording/reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations91
US5986994ANov 16, 1999
Light pickup of thin type
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations72
US5621716AApr 15, 1997
Optical pickup having a transparent lens member with two reflecting surfaces
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations72
US5377177ADec 27, 1994
Optical pickup having first and second reflecting surfaces and hologram
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations70
US6804186B2Oct 12, 2004
Optical pickup of tilt control type
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US6084847AJul 4, 2000
Light pickup
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations61
US5566157AOct 15, 1996
Optical pickup for information recording/reproducing apparatus having polygon prism, hologram, and grating lens
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations61