P

Inventor

TOKUNAGA MASAAKI

JP52 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI METALS LTD

21 patents
US4983232AJan 8, 1991

Anisotropic magnetic powder and magnet thereof and method of producing same

HITACHI METALS LTD37 citations95
US5472525ADec 5, 1995

Nd-Fe-B system permanent magnet

HITACHI METALS LTD27 citations92
US5230751AJul 27, 1993

Permanent magnet with good thermal stability

HITACHI METALS LTD22 citations92
US5223047AJun 29, 1993

Permanent magnet with good thermal stability

HITACHI METALS LTD21 citations92
US4888068ADec 19, 1989

Process for manufacturing permanent magnet

HITACHI METALS LTD26 citations91
US5041172AAug 20, 1991

Permanent magnet having good thermal stability and method for manufacturing same

HITACHI METALS LTD25 citations90
US4814139AMar 21, 1989

Permanent magnet having good thermal stability and method for manufacturing same

HITACHI METALS LTD25 citations90
US4837109AJun 6, 1989

Method of producing neodymium-iron-boron permanent magnet

HITACHI METALS LTD22 citations81
US4284440AAug 18, 1981

Rare earth metal-cobalt permanent magnet alloy

HITACHI METALS LTD26 citations80
US5125990AJun 30, 1992

Magnetically anisotropic hot-worked magnet and method of producing same

HITACHI METALS LTD10 citations74
US5026419AJun 25, 1991

Magnetically anisotropic hotworked magnet and method of producing same

HITACHI METALS LTD8 citations74
US4978398ADec 18, 1990

Magnetically anisotropic hot-worked magnet and method of producing same

HITACHI METALS LTD11 citations74
US5162063ANov 10, 1992

Magnetically anisotropic r-t-b magnet

HITACHI METALS LTD8 citations73
US5096509AMar 17, 1992

Anisotropic magnetic powder and magnet thereof and method of producing same

HITACHI METALS LTD9 citations73
US3997371ADec 14, 1976

Permanent magnet

HITACHI METALS LTD10 citations73
US4172717AOct 30, 1979

Permanent magnet alloy

HITACHI METALS LTD12 citations71
US5098486AMar 24, 1992

Magnetically anisotropic hotworked magnet and method of producing same

HITACHI METALS LTD5 citations63
US4952251AAug 28, 1990

Magnetically anisotropic hotworked magnet and method of producing same

HITACHI METALS LTD4 citations63
USRE38042EMar 25, 2003

Anisotropic magnetic powder and magnet thereof and method of producing same

HITACHI METALS LTD6 citations62
USRE38021EMar 11, 2003

Anisotropic magnetic powder and magnet thereof and method of producing same

HITACHI METALS LTD2 citations62
US5286308AFeb 15, 1994

Magnetically anisotropic R-T-B magnet

HITACHI METALS LTD2 citations62

FUJI XEROX CO LTD

10 patents

PANASONIC IP MAN CO LTD

4 patents

HORII KIYOHITO

3 patents

TOKUNAGA MASAAKI

3 patents

SATO KOICHI

2 patents

YOSHINO NAOTO

1 patent

KANEKO ATSUSHI

1 patent

YAMADA MASATOSHI

1 patent

KOMIYAMA TSUTOMU

1 patent

ICHIKAWA TOMOYA

1 patent

YAMANAKA KAZUMI

1 patent

YAGATA KAZUYUKI

1 patent

Showing the top 50 of 52 patents by PatentIndex Score.