Inventor
IJIMA SHINICHI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “IJIMA SHINICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
12 patentsUS6728034B1Apr 27, 2004
Diffractive optical element that polarizes light and an optical pickup using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92
US6597642B1Jul 22, 2003
Photodetector unit, and optical pickup, optical reproduction apparatus, and optical recording apparatus equipped with the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6665238B2Dec 16, 2003
Lens driving device, an optical pickup including the lens driving device, and a production method for the lens driving device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6510121B2Jan 21, 2003
Objective lens driving device including a damping member which has an opening on a main surface to allow an optical axis of a lens to pass through, and optical pickup using the object lens driving device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US7139235B2Nov 21, 2006
Optical element with diffraction grating, semiconductor device, and optical information recording device employing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US6735024B2May 11, 2004
Optical pickup with improved optical properties
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US6728035B2Apr 27, 2004
Optical device with diffraction grating having plural grating regions
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US6501601B1Dec 31, 2002
Optical device with diffraction grating having plural grating regions
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73
US6587283B2Jul 1, 2003
Optical-component-integrated optical pickup
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US6614743B1Sep 2, 2003
Semiconductor laser device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations59
US7014798B2Mar 21, 2006
Method for manufacturing an optical pickup
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations58
US6947213B2Sep 20, 2005
Diffractive optical element that polarizes light and an optical pickup using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
PANASONIC CORP
3 patentsUS7822090B2Oct 26, 2010
Semiconductor device
PANASONIC CORP12 citations84
US7970033B2Jun 28, 2011
Semiconductor device and electronic equipment using same
PANASONIC CORP0 citations52
US7830773B2Nov 9, 2010
Optical pickup for recording and reproducing information with a plurality of types of optical information recording mediums
PANASONIC CORP0 citations39