Inventor
IKEDA HIROYUKI
JP141 patents
⚠️ This page may combine multiple inventors who share the name “IKEDA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
17 patentsUS5088817AFeb 18, 1992
Biological object detection apparatus
FUJITSU LTD175 citations99
US5077803ADec 31, 1991
Biological detecting system and fingerprint collating system employing same
FUJITSU LTD162 citations99
US5109428AApr 28, 1992
Minutia data extraction in fingerprint identification
FUJITSU LTD205 citations98
US4728186AMar 1, 1988
Uneven-surface data detection apparatus
FUJITSU LTD142 citations97
US5266788ANov 30, 1993
Laser scanner for bar code reader having a transparent light guide plate
FUJITSU LTD73 citations96
US4924085AMay 8, 1990
Uneven-surface data detection apparatus
FUJITSU LTD140 citations96
US4647143AMar 3, 1987
Light-beam scanning apparatus
FUJITSU LTD101 citations96
US5231277AJul 27, 1993
Optical scanner using plannar reflecting holograms
FUJITSU LTD24 citations93
US4848862AJul 18, 1989
Laser beam scanner
FUJITSU LTD44 citations93
US4832464AMay 23, 1989
Optical system with grating lens assembly for correcting wavelength aberrations
FUJITSU LTD46 citations93
US4810046AMar 7, 1989
Light beam scanning apparatus
FUJITSU LTD40 citations93
US4957336ASep 18, 1990
Laser beam scanner and its fabricating method
FUJITSU LTD51 citations92
US4165464AAug 21, 1979
Light scanning system
FUJITSU LTD39 citations92
US4639070AJan 27, 1987
Beam scanning type information readout device
FUJITSU LTD34 citations90
US4948213AAug 14, 1990
Beam scanner
FUJITSU LTD22 citations81
US4235504ANov 25, 1980
Holographic disk scanner
FUJITSU LTD20 citations81
US4904033AFeb 27, 1990
Method for constructing holograms
FUJITSU LTD21 citations80
SONY CORP
6 patentsUS6150692ANov 21, 2000
Thin film semiconductor device for active matrix panel
SONY CORP97 citations97
US6683595B2Jan 27, 2004
Liquid crystal display apparatus and driving method
SONY CORP22 citations93
US6476416B1Nov 5, 2002
Thin-film semiconductor apparatus, display apparatus using such semiconductor apparatus, and method of manufacturing such display apparatus
SONY CORP35 citations93
US5670795ASep 23, 1997
Thin-film transistor array for display
SONY CORP19 citations93
US6440824B1Aug 27, 2002
Method of crystallizing a semiconductor thin film, and method of manufacturing a thin-film semiconductor device
SONY CORP35 citations92
US7057597B2Jun 6, 2006
Liquid crystal display apparatus and driving method
SONY CORP15 citations84
OPTEX CO LTD
5 patentsUSD854436SJul 23, 2019
Human body detectors
OPTEX CO LTD20 citations93
US6414314B1Jul 2, 2002
Passive-type infrared detector with elongated detection areas
OPTEX CO LTD21 citations93
US6317040B1Nov 13, 2001
Intruder detecting method and apparatus therefor
OPTEX CO LTD31 citations93
USD415442SOct 19, 1999
Intruder detection sensor
OPTEX CO LTD28 citations93
USD417165SNov 30, 1999
Infrared rays sensor
OPTEX CO LTD34 citations92
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
4 patentsUS6731446B2May 4, 2004
Method for forming a magnetic pattern in a magnetic recording medium, method for producing a magnetic recording medium, magnetic pattern forming device, magnetic recording medium and magnetic recording device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD67 citations95
US6816330B2Nov 9, 2004
Method for forming a magnetic pattern in a magnetic recording medium, magnetic recording medium magnetic recording device and photomask
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations91
US6781779B2Aug 24, 2004
Magnetic recording medium, its production method and magnetic recording apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations84
US6744583B2Jun 1, 2004
Method for forming a magnetic pattern in a magnetic recording medium, a magnetic pattern forming device, a magnetic recording medium and a magnetic recording device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations83
RISO KAGAKU CORP
3 patentsUS5992748ANov 30, 1999
Two-dimensional color code, preparing and restoring method for the code and apparatus therefor
RISO KAGAKU CORP59 citations96
US5662039ASep 2, 1997
Recording apparatus for selectively supplying a solvent to perforate a stencil sheet
RISO KAGAKU CORP19 citations93
US5713278AFeb 3, 1998
Plate-making method and apparatus for stencil sheet
RISO KAGAKU CORP18 citations84
IBM
2 patentsNSK LTD
2 patentsLAUREL BANK MACHINE CO
1 patentNIPPON MEKTRON KK
1 patentMITSUBISHI CHEM CORP
1 patentKITAGAWA IND CO LTD
1 patentMITSUBISHI MINING & CEMENT CO
1 patentSUMITOMO HEAVY INDUSTRIES
1 patentUBE INDUSTRIES
1 patentMITSUBISHI RAYON CO
1 patentRENESAS TECH CORP
1 patentTOUYA TAKANAO
1 patentIKEDA HIROYUKI
1 patentShowing the top 50 of 141 patents by PatentIndex Score.