P

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 patents
US6728034B1Apr 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 patents

MINAMIO MASANORI

1 patent

MATSUSHITA ELECTRONICS IND CO

1 patent

PANASONIC IP MAN CO LTD

1 patent

NALUX CO LTD

1 patent