Ishizaka; Chikara

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ishizaka; Chikara.The latest application filed is for "alloy for r-t-b based sintered magnet and r-t-b based sintered magnet".

Company Profile

2.37.46

Ishizaka; Chikara - Tokyo JP
Ishizaka; Chikara - Chuo-ku JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Rare earth based magnet Grant 10,546,672 - Kato , et al. Ja	2020-01-28
R-T-B based sintered magnet and motor Grant 10,530,198 - Tsukamoto , et al. J	2020-01-07
Motor Grant 10,523,101 - Iwasaki , et al. Dec	2019-12-31
Rare earth based magnet Grant 10,256,016 - Fujikawa , et al.	2019-04-09
Alloy for R-T-B based sintered magnet and R-T-B based sintered magnet Grant 10,242,777 - Iwasaki , et al.	2019-03-26
Alloy For R-t-b Based Sintered Magnet And R-t-b Based Sintered Magnet App 20190074114 - IWASAKI; Makoto ; et al.	2019-03-07
Rare earth based magnet Grant 10,109,402 - Kato , et al. October 23, 2	2018-10-23
R-T-B based sintered magnet Grant 10,096,410 - Miwa , et al. October 9, 2	2018-10-09
Rare earth based magnet Grant 10,096,412 - Kato , et al. October 9, 2	2018-10-09
Rare earth based magnet Grant 10,090,087 - Fujikawa , et al. October 2, 2	2018-10-02
Rare earth based magnet Grant 10,083,783 - Fujikawa , et al. September 25, 2	2018-09-25
Rare earth based magnet Grant 10,020,099 - Kato , et al. July 10, 2	2018-07-10
Sintered magnet Grant 9,997,284 - Miwa , et al. June 12, 2	2018-06-12
Motor App 20170346432 - IWASAKI; Makoto ; et al.	2017-11-30
R-T-B based sintered magnet Grant 9,773,599 - Miwa , et al. September 26, 2	2017-09-26
Alloy For R-t-b Based Sintered Magnet And R-t-b Based Sintered Magnet App 20170221616 - IWASAKI; Makoto ; et al.	2017-08-03
R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing same Grant 9,620,268 - Tsubokura , et al. April 11, 2	2017-04-11
R-T-B based sintered magnet and production method for same, and rotary machine Grant 9,613,737 - Kato , et al. April 4, 2	2017-04-04
R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing same Grant 9,607,742 - Ishiyama , et al. March 28, 2	2017-03-28
R-t-b Based Sintered Magnet And Motor App 20170076846 - TSUKAMOTO; Naoto ; et al.	2017-03-16
Rare earth based magnet Grant 9,548,149 - Kato , et al. January 17, 2	2017-01-17
R-T-B based sintered magnet Grant 9,514,869 - Miwa , et al. December 6, 2	2016-12-06
Rare earth sintered magnet, method for producing the same, motor, and automobile Grant 9,350,203 - Baba , et al. May 24, 2	2016-05-24
R-t-b Based Sintered Magnet App 20160086701 - MIWA; Masashi ; et al.	2016-03-24
Rare Earth Based Magnet App 20150310972 - KATO; Eiji ; et al.	2015-10-29
Rare Earth Based Magnet App 20150270041 - KATO; Eiji ; et al.	2015-09-24
R-t-b Based Sintered Magnet App 20150235750 - Miwa; Masashi ; et al.	2015-08-20
Rare Earth Based Magnet App 20150179317 - FUJIKAWA; Yoshinori ; et al.	2015-06-25
Rare Earth Based Magnet App 20150179319 - FUJIKAWA; Yoshinori ; et al.	2015-06-25
Rare Earth Based Magnet App 20150179318 - FUJIKAWA; Yoshinori ; et al.	2015-06-25
Sintered Magnet App 20150170810 - Miwa; Masashi ; et al.	2015-06-18
R-t-b Based Sintered Magnet App 20150155083 - Miwa; Masashi ; et al.	2015-06-04
Rare Earth Sintered Magnet, Method For Producing Same, Motor And Automobile App 20140335268 - Tanaka; Satoshi ; et al.	2014-11-13
R-t-b Based Alloy Strip, And R-t-b Based Sintered Magnet And Method For Producing Same App 20140308152 - Tsubokura; Taeko ; et al.	2014-10-16
Rare Earth Based Magnet App 20140290803 - KATO; Eiji ; et al.	2014-10-02
Rare Earth Based Magnet App 20140292453 - KATO; Eiji ; et al.	2014-10-02
Rare Earth Based Magnet App 20140292454 - KATO; Eiji ; et al.	2014-10-02
R-t-b Based Sintered Magnet And Production Method For Same, And Rotary Machine App 20140286816 - Kato; Eiji ; et al.	2014-09-25
R-t-b Based Alloy Strip, And R-t-b Based Sintered Magnet And Method For Producing Same App 20140286815 - Ishiyama; Tamotsu ; et al.	2014-09-25
R-t-b Sintered Magnet And Method For Production Thereof, And Rotary Machine App 20140247100 - Tsubokura; Taeko ; et al.	2014-09-04
Rare earth sintered magnet, method for producing same, motor and automobile Grant 8,823,478 - Tanaka , et al. September 2, 2	2014-09-02
Rare Earth Sintered Magnet, Method For Producing Same, Motor And Automobile App 20130049910 - Tanaka; Satoshi ; et al.	2013-02-28
Rare Earth Sintered Magnet, Method For Producing The Same, Motor, And Automobile App 20130026870 - Baba; Fumitaka ; et al.	2013-01-31
Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereof Grant 8,157,927 - Enokido , et al. April 17, 2	2012-04-17
R-T-B system sintered magnet Grant 8,123,832 - Kato , et al. February 28, 2	2012-02-28
Method for Producing Sintered Magnet and alloy for sintered magnet App 20110274898 - Hidaka; Tetsuya ; et al.	2011-11-10
Method for producing sintered magnet and alloy for sintered magnet Grant 7,955,442 - Hidaka , et al. June 7, 2	2011-06-07
Method for producing raw material powder for rare earth sintered magnet, method for producing rare earth sintered magnet, granule and sintered body Grant 7,858,023 - Enokido , et al. December 28, 2	2010-12-28
Rare earth sintered magnet Grant 7,740,716 - Enokido , et al. June 22, 2	2010-06-22
Raw Material Alloy For R-t-b System Sintered Magnet, R-t-b System Sintered Magnet And Production Method Thereof App 20100111746 - Enokido; Yasushi ; et al.	2010-05-06
R-T-B Based Rare Earth Permanent Magnet and Method for Production Thereof App 20100040501 - KATO; Eiji ; et al.	2010-02-18
R-T-B based rare earth permanent magnet and method for production thereof Grant 7,618,497 - Kato , et al. November 17, 2	2009-11-17
Rare Earth Sintered Magnet App 20090178735 - Enokido; Yasushi ; et al.	2009-07-16
R-t-b System Sintered Magnet App 20090019969 - Kato; Eiji ; et al.	2009-01-22
Method for compacting magnetic powder in magnetic field, and method for producing rare-earth sintered magnet Grant 7,416,613 - Chou , et al. August 26, 2	2008-08-26
Method For Producing Raw Material Powder For Rare Earth Sintered Magnet, Method For Producing Rare Earth Sintered Magnet, Granule And Sintered Body App 20080053273 - Enokido; Yasushi ; et al.	2008-03-06
R-T-B system rare earth permanent magnet Grant 7,314,531 - Ishizaka , et al. January 1, 2	2008-01-01
R-T-B system rare earth permanent magnet Grant 7,311,788 - Nishizawa , et al. December 25, 2	2007-12-25
Rare Earth Sintered Magnet, Raw Material Alloy Powder For Rare Earth Sintered Magnet, And Process For Producing Rare Earth Sintered Magnet App 20070221296 - Enokido; Yasushi ; et al.	2007-09-27
Method for manufacturing R-T-B system rare earth permanent magnet Grant 7,255,751 - Nishizawa , et al. August 14, 2	2007-08-14
Method for manufacturing R-T-B system rare earth permanent magnet Grant 7,255,752 - Ishizaka , et al. August 14, 2	2007-08-14
Rare earth sintered magnet, and method for improving mechanical strength and corrosion resistance thereof Grant 7,208,056 - Iwasaki , et al. April 24, 2	2007-04-24
R-T-B system rare earth permanent magnet and compound for magnet Grant 7,192,493 - Nishizawa , et al. March 20, 2	2007-03-20
R-t-b based rare earth permanent magnet and method for production thereof App 20060231165 - Kato; Eiji ; et al.	2006-10-19
Method for producing sintered rare earth element magnet App 20060207689 - Iwasaki; Makoto ; et al.	2006-09-21
Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereof App 20060165550 - Enokido; Yasushi ; et al.	2006-07-27
Method for compacting magnetic powder in magnetic field, and method for producing rare-earth sintered magnet App 20050183792 - Chou, Tsutomu ; et al.	2005-08-25
Method for producing sintered magnet and alloy for sintered magnet App 20050183791 - Hidaka, Tetsuya ; et al.	2005-08-25
Rare earth sintered magnet, and method for improving mechanical strength and corrosion resistance thereof App 20050173025 - Iwasaki, Makoto ; et al.	2005-08-11
Rare earth permanent magnet Grant 6,833,036 - Nakane , et al. December 21, 2	2004-12-21
R-T-B system rare earth permanent magnet Grant 6,811,620 - Ishizaka , et al. November 2, 2	2004-11-02
R-T-B system rare earth permanent magnet App 20040187969 - Ishizaka, Chikara ; et al.	2004-09-30
Method for manufacturing R-T-B system rare earth permanent magnet App 20040187962 - Ishizaka, Chikara ; et al.	2004-09-30
R-t-b System Rare Earth Permanent Magnet App 20040187970 - Ishizaka, Chikara ; et al.	2004-09-30
R-T-B system rare earth permanent magnet App 20040177899 - Nishizawa, Gouichi ; et al.	2004-09-16
Method for manufacturing R-T-B system rare earth permanent magnet App 20040166013 - Nishizawa, Gouichi ; et al.	2004-08-26
R-T-B system rare earth permanent magnet and compound for magnet App 20040118484 - Nishizawa, Gouichi ; et al.	2004-06-24
Rare earth permanent magnet App 20030141951 - Nakane, Makoto ; et al.	2003-07-31