Inventor
YAJIMA KOICHI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “YAJIMA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
6 patentsUS5049208ASep 17, 1991
Permanent magnets
TDK CORP79 citations95
US5022939AJun 11, 1991
Permanent magnets
TDK CORP62 citations95
US5595608AJan 21, 1997
Preparation of permanent magnet
TDK CORP77 citations94
US5154978AOct 13, 1992
Highly corrosion-resistant rare-earth-iron magnets
TDK CORP74 citations93
US5431747AJul 11, 1995
Master alloy for magnet production and a permanent alloy
TDK CORP34 citations89
US5181973AJan 26, 1993
Sintered permanent magnet
TDK CORP8 citations74
DISCO CORP
5 patentsUS6852608B2Feb 8, 2005
Production method for semiconductor chip
DISCO CORP25 citations91
US6939741B2Sep 6, 2005
IC chip manufacturing method
DISCO CORP22 citations90
US6927416B2Aug 9, 2005
Wafer support plate
DISCO CORP14 citations83
US7172950B2Feb 6, 2007
Method for manufacturing semiconductor chip
DISCO CORP12 citations80
US6982211B2Jan 3, 2006
Water jet processing method
DISCO CORP2 citations60
SHOWA DENKO KK
3 patentsUS6045629AApr 4, 2000
Alloy used for production of a rare-earth magnet and method for producing the same
SHOWA DENKO KK21 citations92
US5948179ASep 7, 1999
Alloy used for production of a rare-earth magnet and method for producing the same
SHOWA DENKO KK12 citations73
US6328825B1Dec 11, 2001
Alloy used for production of a rare-earth magnet and method for producing the same
SHOWA DENKO KK6 citations62