Inventor

SASANO TOMOHIKO

JP15 patents

⚠️ This page may combine multiple inventors who share the name “SASANO TOMOHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

12 patents

US6833667B2Dec 21, 2004

Organic electroluminescence element and image forming apparatus or portable terminal unit using thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD69 citations96

US6504975B1Jan 7, 2003

Coupling lens and semiconductor laser module

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations92

US6490100B1Dec 3, 2002

Objective lens and optical head device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92

US7177101B2Feb 13, 2007

Optical head apparatus and optical information recording and reproduction apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations84

US6807017B2Oct 19, 2004

Objective lens and optical head device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74

US6590717B2Jul 8, 2003

Optical system for optical disk, optical head unit for optical disk, and optical drive device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74

US6349000B1Feb 19, 2002

Device for calculating diffraction efficiencies of a diffraction lens, lens with grating element, and optical system for reading

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74

US6606198B2Aug 12, 2003

Lens array

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71

US7099260B2Aug 29, 2006

Objective lens for optical disk

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63

US7046350B2May 16, 2006

Device for calculating diffraction efficiencies of a diffraction lens, lens with grating element, and optical system for reading

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63

US6829209B1Dec 7, 2004

Objective for optical disk, optical head device and optical information recording/reproducing apparatus both comprising the same, mold for forming lens, method for machining mold for forming lens, and shape measuring instrument

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63

US6627869B2Sep 30, 2003

Beam shaper, and semiconductor laser source device and optical head using the beam shaper

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63

PANASONIC CORP

3 patents

US7782540B2Aug 24, 2010

Optical head apparatus and optical information recording and reproduction apparatus

PANASONIC CORP2 citations63

US7602561B2Oct 13, 2009

Optical head apparatus and optical information recording and reproduction apparatus

PANASONIC CORP1 citations63

USRE40954ENov 10, 2009

Objective lens and optical head device

PANASONIC CORP0 citations52