P

Inventor

SAITO ATSUSHI

JP251 patents
⚠️ This page may combine multiple inventors who share the name “SAITO ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

19 patents
US5377178ADec 27, 1994

Data recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronization

HITACHI LTD198 citations99
US4866692ASep 12, 1989

Method and apparatus for information recording and reproduction of a pit-shape-forming optical recording type

HITACHI LTD153 citations99
US6005599ADec 21, 1999

Video storage and delivery apparatus and system

HITACHI LTD267 citations98
US5642343AJun 24, 1997

Magnetooptic disc apparatus and recording medium

HITACHI LTD117 citations98
US5418770AMay 23, 1995

Method of and apparatus for correcting edge interval of pit in optical recording/read-out apparatus

HITACHI LTD120 citations98
US5333126AJul 26, 1994

Information recording method and optical disk apparatus using same

HITACHI LTD144 citations98
US6519715B1Feb 11, 2003

Signal processing apparatus and a data recording and reproducing apparatus including local memory processor

HITACHI LTD51 citations96
US6243340B1Jun 5, 2001

Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessed

HITACHI LTD68 citations96
US5848045ADec 8, 1998

Method for recording and reading an optical disk

HITACHI LTD70 citations96
US4985881AJan 15, 1991

Record carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameter

HITACHI LTD46 citations96
US4894816AJan 16, 1990

Optical information recording apparatus

HITACHI LTD68 citations96
US5703855ADec 30, 1997

Optical disk apparatus and recording and reading method for an optical disk using the same

HITACHI LTD61 citations95
US5513165AApr 30, 1996

Method for controlling the farm of a magnetic domain of a magneto-optical disk using pre-write testing

HITACHI LTD90 citations95
US5229986AJul 20, 1993

Data recording/reproducing device

HITACHI LTD44 citations95
US6463022B1Oct 8, 2002

Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same

HITACHI LTD28 citations93
US6345023B1Feb 5, 2002

Optical disc apparatus with different frequencies of wobble signal and clock signal for rotation control

HITACHI LTD39 citations93
US5572503ANov 5, 1996

Correcting non-linear distortions of optical information with a non-linear equalizer

HITACHI LTD32 citations93
US5559777ASep 24, 1996

Optical recording method employing pit edge recording on recording medium divided into a plurality of zones wherein recording parameters vary from zone to zone

HITACHI LTD41 citations93
US5463600AOct 31, 1995

Magneto-optical recording system using recording waveform having a plurality of power levels providing high recording density

HITACHI LTD40 citations93

CANON KK

16 patents
US6012795AJan 11, 2000

Ink amount detecting device and recording apparatus provided with such a device

CANON KK88 citations98
US5859653AJan 12, 1999

Ink jet recording apparatus for maintaining constant distance between recording head and recording medium

CANON KK120 citations98
US5760900AJun 2, 1998

Method and apparatus for optically measuring specimen

CANON KK275 citations98
US5480775AJan 2, 1996

Method for measuring a specimen by the use of fluorescent light

CANON KK127 citations98
US6092891AJul 25, 2000

Fixing mechanism and ink jet recording apparatus using the fixing mechanism

CANON KK78 citations96
US6056386AMay 2, 2000

Testing for normal print discharge

CANON KK47 citations96
US5689290ANov 18, 1997

Liquid level detecting mechanism and ink jet recording apparatus having the mechanism

CANON KK88 citations96
US5559536ASep 24, 1996

Recovery device having a protruding portion providing reduced pressure for improved recovery and method using same

CANON KK61 citations96
US5508722AApr 16, 1996

Ink jet apparatus and method for detecting ink nondischarge based on ink temperature

CANON KK43 citations96
US5481290AJan 2, 1996

Recording apparatus

CANON KK89 citations96
US4947191AAug 7, 1990

Ink jet recording apparatus

CANON KK66 citations96
US4908636AMar 13, 1990

Recovery device having a protruding portion providing reduced pressure for improved recovery and method using same

CANON KK42 citations96
US4737801AApr 12, 1988

Ink supply device and an ink jet recording apparatus having the ink supply device

CANON KK106 citations96
US8876280B2Nov 4, 2014

Printing apparatus

CANON KK20 citations93
US5988787ANov 23, 1999

Ink jet apparatus having a recording unit cartridge including a recording head, ink supply system and ink collecting member

CANON KK52 citations93
US5659343AAug 19, 1997

Method of forming an ink jet recording head having an orifice plate with positioning openings for precisely locating discharge ports in a recording apparatus

CANON KK21 citations93

NEC CORP

5 patents

SEIKO EPSON CORP

3 patents

SEIKO PRECISION KK

2 patents

HITACHI GLOBAL STORAGE TECH

2 patents

SUNSTAR ENGINEERING INC

1 patent

ADVANTEST CORP

1 patent

MURATA MANUFACTURING CO

1 patent

Showing the top 50 of 251 patents by PatentIndex Score.