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 patentsUS4983232AJan 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 patentsUS6571073B1May 27, 2003
Subunit attaching structure and subunit attaching/removing method in image forming apparatus
FUJI XEROX CO LTD41 citations92
US5758252AMay 26, 1998
Image forming apparatus with improved transportation of curled sheets
FUJI XEROX CO LTD19 citations84
US5659863AAug 19, 1997
Imaging forming apparatus with detecting capabilities of a condition of a transfer material carrier
FUJI XEROX CO LTD7 citations74
US5617197AApr 1, 1997
Image forming apparatus having a device for stripping a transfer member carried on a transfer drum
FUJI XEROX CO LTD13 citations74
US5594536AJan 14, 1997
Reliable transfer film attachment structure
FUJI XEROX CO LTD10 citations74
US5822665AOct 13, 1998
Image forming apparatus having means for preventing vibration of a transfer film caused from the operation of a separating device
FUJI XEROX CO LTD11 citations73
US5809391ASep 15, 1998
Image forming apparatus enabling easy and reliable recovery from a pop jam
FUJI XEROX CO LTD14 citations73
US5737681AApr 7, 1998
Image forming apparatus having curling device for holding transfer material and method of curling sheet
FUJI XEROX CO LTD9 citations73
US5659836AAug 19, 1997
Transfer drum having a low-reflectivity area
FUJI XEROX CO LTD3 citations63
US7844199B2Nov 30, 2010
Image forming apparatus having detachable intermediate transfer body
FUJI XEROX CO LTD5 citations62
PANASONIC IP MAN CO LTD
4 patentsUS9764543B2Sep 19, 2017
Paste supply apparatus and screen printing machine
PANASONIC IP MAN CO LTD0 citations42
US9566779B2Feb 14, 2017
Paste supply apparatus, screen printing apparatus, paste supply method and screen printing method
PANASONIC IP MAN CO LTD0 citations42
US9393775B2Jul 19, 2016
Screen printing machine and screen printing method
PANASONIC IP MAN CO LTD0 citations42
US9352548B2May 31, 2016
Paste supply apparatus and screen printing machine
PANASONIC IP MAN CO LTD0 citations42
HORII KIYOHITO
3 patentsUS8693925B2Apr 8, 2014
Powder container and image forming apparatus for causing restraining portion to contact restrained portion
HORII KIYOHITO12 citations80
US8626036B2Jan 7, 2014
Powder container and image forming apparatus having an opening/closing member
HORII KIYOHITO2 citations59
US8577240B2Nov 5, 2013
Sensor member and image forming apparatus
HORII KIYOHITO0 citations39
TOKUNAGA MASAAKI
3 patentsUS8774674B2Jul 8, 2014
Image forming apparatus and transport guiding device having a smoothly operating door
TOKUNAGA MASAAKI4 citations70
US8630562B2Jan 14, 2014
Image forming apparatus
TOKUNAGA MASAAKI2 citations60
US8306455B2Nov 6, 2012
Transfer device and image forming apparatus
TOKUNAGA MASAAKI0 citations50
SATO KOICHI
2 patentsYOSHINO NAOTO
1 patentKANEKO ATSUSHI
1 patentYAMADA MASATOSHI
1 patentKOMIYAMA TSUTOMU
1 patentICHIKAWA TOMOYA
1 patentYAMANAKA KAZUMI
1 patentYAGATA KAZUYUKI
1 patentShowing the top 50 of 52 patents by PatentIndex Score.