Inventor
NISHIWAKI SEIJI
JP102 patents
⚠️ This page may combine multiple inventors who share the name “NISHIWAKI SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
27 patentsUS5343038AAug 30, 1994
Scanning laser microscope with photo coupling and detecting unit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD81 citations96
US5200939AApr 6, 1993
Optical head apparatus including a waveguide layer with concentric or spiral periodic structure
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD73 citations95
US6459664B1Oct 1, 2002
Optical disc tilt control apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations93
US6327238B1Dec 4, 2001
Optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations93
US6307827B1Oct 23, 2001
Optical device and information recording and reproducing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations93
US5307184AApr 26, 1994
Exposure apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations93
US5181265AJan 19, 1993
Optical coupling apparatus for introducing and coupling an incident light into a wave guide
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations93
US6618343B1Sep 9, 2003
Optical information processor and optical element
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US6496453B2Dec 17, 2002
Optical pickup
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US5193130AMar 9, 1993
Light deflecting device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US7239588B2Jul 3, 2007
Method and apparatus for detecting foreign body on object surface, and optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations84
US7157690B2Jan 2, 2007
Imaging device with triangular photodetector array for use in imaging
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations84
US5892741AApr 6, 1999
Information recording medium and tracking error signal detection apparatus and magnetic recording apparatus and method of adjusting the magnetic recording apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US4991919AFeb 12, 1991
Optical head apparatus including concentric, periodic grating in a waveguide
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations81
US7126904B2Oct 24, 2006
Optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6594042B2Jul 15, 2003
Optical element, optical pickup, information recording and reproducing method, and polarizing hologram
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6567372B2May 20, 2003
Optical disk and optical disk apparatus with tracks and grooves
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6009054ADec 28, 1999
Information recording medium and tracking error signal detection apparatus and magnetic recording apparatus and method of adjusting the magnetic recording apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US5745221AApr 28, 1998
Exposure equipment
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US5684900ANov 4, 1997
Wavelength locking device, beam collimating device, and optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US5159650AOct 27, 1992
Optical disk apparatus for recording and reproducing ultra-high density signals
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US5142394AAug 25, 1992
Twisted nematic polarizing element with a concentric circle orientation surface and optical head device incorporating the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6888787B2May 3, 2005
Optical information processor and optical element
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations73
US6704254B1Mar 9, 2004
Optical disk device, control method of optical system, medium, and information aggregate
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US6674709B1Jan 6, 2004
Optical head apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73
US5495462AFeb 27, 1996
Light beam splitting apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations71
US7443440B2Oct 28, 2008
Color separator and imager
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63
PANASONIC CORP
11 patentsUS9316786B2Apr 19, 2016
Light-trapping sheet and rod, and light-receiving device and light-emitting device using the same
PANASONIC CORP33 citations94
US9103978B2Aug 11, 2015
Light-trapping sheet, and light-receiving device and light-emitting device using the same
PANASONIC CORP39 citations94
US8934743B2Jan 13, 2015
Light-receiving device having light-trapping sheet
PANASONIC CORP41 citations94
US8384818B2Feb 26, 2013
Solid-state imaging device including arrays of optical elements and photosensitive cells
PANASONIC CORP31 citations92
US9099370B2Aug 4, 2015
Solid-state imaging element and imaging device
PANASONIC CORP12 citations84
US7924327B2Apr 12, 2011
Imaging apparatus and method for producing the same, portable equipment, and imaging sensor and method for producing the same
PANASONIC CORP8 citations84
US9673241B2Jun 6, 2017
Light-condensing unit, solid-state image sensor, and image capture device
PANASONIC CORP3 citations73
US8045432B2Oct 25, 2011
Optical disc device
PANASONIC CORP4 citations63
US7952777B2May 31, 2011
Three-dimensional video display apparatus
PANASONIC CORP2 citations63
US7692875B2Apr 6, 2010
Optical pickup and optical disk device having this pickup
PANASONIC CORP2 citations63
US7505389B2Mar 17, 2009
Information processing device and information recording medium
PANASONIC CORP4 citations63
NISHIWAKI SEIJI
5 patentsUS9188717B2Nov 17, 2015
Light acquisition sheet and rod, and light receiving device and light emitting device each using the light acquisition sheet or rod
NISHIWAKI SEIJI37 citations94
US8076745B2Dec 13, 2011
Imaging photodetection device
NISHIWAKI SEIJI14 citations84
US8294076B2Oct 23, 2012
Imaging device with columnar or plate-like transparent refractive index layers
NISHIWAKI SEIJI10 citations83
US8993871B2Mar 31, 2015
Condensing lens array, and solar cell provided with same
NISHIWAKI SEIJI3 citations63
US8529114B2Sep 10, 2013
Sheet and light emitting device
NISHIWAKI SEIJI4 citations63
PANASONIC IP MAN CO LTD
3 patentsUS10088293B2Oct 2, 2018
Light detection device including light detector, light coupling layer, and light shielding film, and light detection system including same
PANASONIC IP MAN CO LTD2 citations73
US11450706B2Sep 20, 2022
Structural body, imaging device and method for manufacturing the structural body
PANASONIC IP MAN CO LTD2 citations72
US9494742B2Nov 15, 2016
Light capturing sheet, light capturing rod, light receiving device using light capturing sheet or light capturing rod, light emitting device using light capturing sheet or light capturing rod, and optical-fiber amplifier using light capturing sheet or light capturing rod
PANASONIC IP MAN CO LTD2 citations63
HIRAMOTO MASAO
1 patentWAKABAYASHI SHIN-ICHI
1 patentNAGASHIMA MICHIYOSHI
1 patentMATSUZAKI JYUNPEI
1 patentShowing the top 50 of 102 patents by PatentIndex Score.