Inventor
YONEYAMA TETSUHITO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “YONEYAMA TETSUHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
10 patentsUS5665177ASep 9, 1997
Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder
TDK CORP51 citations96
US5209789AMay 11, 1993
Permanent magnet material and method for making
TDK CORP47 citations96
US5049208ASep 17, 1991
Permanent magnets
TDK CORP79 citations95
US5022939AJun 11, 1991
Permanent magnets
TDK CORP62 citations95
US5916376AJun 29, 1999
Preparation of magnet
TDK CORP20 citations92
US5750044AMay 12, 1998
Magnet and bonded magnet
TDK CORP49 citations92
US4836868AJun 6, 1989
Permanent magnet and method of producing same
TDK CORP66 citations92
US5993939ANov 30, 1999
Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder
TDK CORP14 citations82
US5309977AMay 10, 1994
Permanent magnet material and method for making
TDK CORP14 citations73
US5229219AJul 20, 1993
Magnetic recording medium comprising a magnetic layer containing a specified magnetic ferrite powder and having a curie temperature up to 180° C.
TDK CORP0 citations47