Inventor
YANAGISAWA HIROSHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “YANAGISAWA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
9 patentsUS4725892AFeb 16, 1988
Method and apparatus for enlarging or reducing an image on the basis of precalculated reference pel contribution rate data and two-dimensional reference window shifting amount data stored in a table memory
IBM68 citations95
US4682869AJul 28, 1987
Image processing system and method
IBM56 citations95
US6466387B1Oct 15, 2002
Data recording disk and disk drive device for reducing wasted space on a data recording disk
IBM32 citations92
US5905603AMay 18, 1999
Magnetic recording medium magnetic head positioning method, and magnetic recording apparatus
IBM17 citations83
US4598283AJul 1, 1986
Method for converting the number of bits of input bit stream
IBM21 citations79
US4982292AJan 1, 1991
Method and apparatus for processing pel signals of an image
IBM15 citations73
US5576908ANov 19, 1996
Actuator and file level initialization of magnetoresistive transducers
IBM11 citations68
US5808822ASep 15, 1998
Apparatus and method for correcting a read signal in a disk drive system based upon a front peak, a back peak and a peak of interest
IBM3 citations62
US4703364AOct 27, 1987
Processor synchronous image scanner controlling method
IBM5 citations60
HITACHI GLOBAL STORAGE TECH
5 patentsUS7019933B2Mar 28, 2006
Servo information write method, servo control method, data storage device, and program
HITACHI GLOBAL STORAGE TECH21 citations91
US7486467B2Feb 3, 2009
Magnetic disk drive and method for registering defective sector using timing control of pattern writing
HITACHI GLOBAL STORAGE TECH11 citations83
US7286316B2Oct 23, 2007
Method and data storage device for writing patterns onto recording disk
HITACHI GLOBAL STORAGE TECH8 citations73
US7457065B2Nov 25, 2008
Systems and methods for hard disk drive optimization and manufacturing
HITACHI GLOBAL STORAGE TECH2 citations63
US7532424B2May 12, 2009
Method of writing pattern on media and data storage device
HITACHI GLOBAL STORAGE TECH6 citations59
UBE INDUSTRIES
4 patentsUS5478784ADec 26, 1995
Silicon nitride powder and silicon nitride-containing aqueous slurry
UBE INDUSTRIES7 citations74
US4507494AMar 26, 1985
Process for the production of a diester of oxalic acid
UBE INDUSTRIES11 citations71
US4410722AOct 18, 1983
Process for preparing oxalic acid diesters using platinum group metals supported on alumina
UBE INDUSTRIES16 citations71
US4384133AMay 17, 1983
Process for the preparation of oxalic acid diesters
UBE INDUSTRIES7 citations71