HITACHI MAXELL, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology MATTERS Rank in Class
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 469 38
 
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 246 27
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 241 39
 
 
G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR 197 20
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 150 244
 
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 64 60
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 58 114
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 56 126
 
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 52 65
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 50 81
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0056,474 MAGNETIC TAPE, ITS CLEANING METHOD, AND OPTICAL SERVOTRACK FORMING/CLEANING APPARATUS Oct 31, 14 Feb 26, 15 [G11B]
2015/0049,166 WIDE-ANGLE LENS AND IMAGING DEVICE Feb 22, 13 Feb 19, 15 [G03B, H04N, G02B]
2015/0009,368 IMAGING DEVICE Sep 14, 12 Jan 08, 15 [H04N]
2015/0002,435 PROJECTOR, FIGURE INPUT/DISPLAY APPARATUS, PORTABLE TERMINAL, AND PROGRAM Feb 13, 12 Jan 01, 15 [G09G, G06F]
2015/0002,829 PROJECTION-TYPE IMAGE DISPLAY DEVICE Feb 09, 12 Jan 01, 15 [G03B]
2015/0003,809 CONTENT RECEIVING DEVICE, CONTENT RECEIVING METHOD AND DIGITAL BROADCAST TRANSMITTING AND RECEIVING SYSTEM Feb 01, 12 Jan 01, 15 [H04N, G11B, G06K]
2014/0347,494 IMAGING LENS AND IMAGING DEVICE Feb 22, 13 Nov 27, 14 [H04N, G02B]
2014/0344,696 CONTENT DISPLAY DEVICE Feb 24, 12 Nov 20, 14 [G06F]
2014/0333,590 DIGITAL PEN Feb 01, 12 Nov 13, 14 [G06T, G06F]
2014/0333,904 PROJECTOR DEVICE Nov 21, 11 Nov 13, 14 [G03B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,965,176 Video displaying system and reproducing apparatus Jun 13, 11 Feb 24, 15 [H04N]
8,957,880 Image display apparatus having back light with multiple light sources and configured to control luminance for each of a plurality of areas that exceed the number of light sources Jun 25, 09 Feb 17, 15 [F21V, G09G, G06F]
D722636 Projector Sep 24, 13 Feb 17, 15 [1602]
8,947,324 Display apparatus Jul 11, 08 Feb 03, 15 [G09G]
8,948,257 Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus, and program Sep 30, 10 Feb 03, 15 [H04N]
8,941,724 Receiver Sep 29, 11 Jan 27, 15 [H04N]
8,942,475 Image signal processing device to emphasize contrast May 24, 10 Jan 27, 15 [H04N, G06K]
8,928,646 Capacitive-load driving circuit and plasma display apparatus using the same Dec 14, 11 Jan 06, 15 [H05B, G09G, H01J]
8,929,439 Compressed image noise removal device and reproduction device Jun 08, 09 Jan 06, 15 [H04N]
8,920,949 Battery unit Jan 06, 12 Dec 30, 14 [H01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
2012/0220,048 MAGNETIC MARKER PARTICLE AND METHOD FOR PRODUCING THE SAME Jun 02, 11 Aug 30, 12 [H01F, G01N, B82Y]
2012/0094,184 SEPARATOR FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING SAME Jun 10, 10 Apr 19, 12 [C08K, H01M, C08L]
2012/0061,608 FUNCTIONAL PARTICLE WITH ROUGH-SURFACED POLYMER COATING Sep 08, 11 Mar 15, 12 [H01F]
2011/0273,658 POLARIZATION SPLIT ELEMENT AND METHOD FOR MANUFACTURING THE SAME Mar 05, 10 Nov 10, 11 [G02F]
2011/0216,255 POLARIZATION DIFFRACTION GRATING, METHOD FOR MANUFACTURING THE SAME, AND OPTICAL PICKUP APPARATUS USING THE POLARIZATION DIFFRACTION GRATING Feb 28, 11 Sep 08, 11 [G02B, G02F]
2011/0211,438 COLLIMATING LENS UNIT AND OPTICAL PICKUP DEVICE USING THE SAME Feb 09, 11 Sep 01, 11 [G11B]
2011/0157,521 LIQUID CRYSTAL DISPLAY Jul 22, 09 Jun 30, 11 [G02F]
2011/0089,118 SURFACE-ROUGHENED HIGH-DENSITY FUNCTIONAL PARTICLE, METHOD FOR PRODUCING THE SAME AND METHOD FOR TREATING TARGET SUBSTANCE WITH THE SAME Apr 24, 09 Apr 21, 11 [B32B, B01D]
2011/0085,432 GRATING ELEMENT, OPTICAL PICKUP OPTICAL SYSTEM AND METHOD OF DESIGNING GRATING ELEMENT Oct 29, 09 Apr 14, 11 [G02B, G11B, B32B]
2011/0020,550 PROCESS FOR PRODUCING COMPOSITE MATERIAL COMPRISING RESIN MOLDED PRODUCT Mar 12, 09 Jan 27, 11 [C23C]
7,871,717 Optical film and method for producing the same Oct 23, 06 Jan 18, 11 [B05D, B32B]
2010/0320,635 METHOD FOR PRODUCING POLYMER MEMBER HAVING PLATED FILM Jun 16, 10 Dec 23, 10 [B05D, B29C]
7,855,940 Pickup lens with phase compensator and optical pickup apparatus using the same Jul 28, 09 Dec 21, 10 [G11B]
7,829,061 Zirconium oxide hydrate particles and method for producing the same Jul 02, 08 Nov 09, 10 [C01G]
7,801,010 Coupling lens and optical pickup device Nov 21, 07 Sep 21, 10 [G11B]
2010/0227,201 MAGNETIC RECORDING MEDIUM Mar 02, 10 Sep 09, 10 [G11B]
7,768,885 Method for evaluating optical recording medium, optical recording medium, and information-recording/reproducing apparatus Mar 27, 06 Aug 03, 10 [G11B]
7,748,638 Non-contact IC module Jan 11, 08 Jul 06, 10 [G06K]
7,736,558 Imprint manufacture method Jan 07, 04 Jun 15, 10 [B29C, B29B]
2010/0141,734 Imaging apparatus and optical axis correction method of imaging apparatus Oct 27, 09 Jun 10, 10 [H04N]

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