HT

Hiroyuki Tomizawa

HI Hitachi: 8 patents #5,191 of 28,497Top 20%
NC Neomax Co.: 4 patents #16 of 95Top 20%
SC Sumitomo Special Metals Co.: 1 patents #136 of 262Top 55%
📍 Ibaraki, JP: #755 of 6,779 inventorsTop 15%
Overall (All Time): #385,598 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
8092619 R-T-Cu-Mn-B type sintered magnet Futoshi Kuniyoshi, Rintaro Ishii 2012-01-10
7892365 Rare earth element-iron-boron alloy, and magnetically anisotropic permanent magnet powder and method for production thereof Yuji Kaneko 2011-02-22
7867343 Rare earth magnet and method for production thereof Yuji Kaneko 2011-01-11
7789933 R-T-B based sintered magnet 2010-09-07
7740715 R-T-B based sintered magnet 2010-06-22
7578892 Magnetic alloy material and method of making the magnetic alloy material Satoshi Hirosawa, Ryosuke Kogure 2009-08-25
7550047 Rare earth element-iron-boron alloy and magnetically anisotropic permanent magnet powder and method for production thereof Yuji Kaneko 2009-06-23
7534311 R-t-b sintered magnet and rare earth alloy Yutaka Matsuura 2009-05-19
7316752 R-T-B-C based rare-earth magnetic powder and bonded magnet Yuji Kaneko 2008-01-08
7258751 Rare earth magnet and method for production thereof Yuji Kaneko 2007-08-21
7172659 Method for producing quenched R-T-B—C alloy magnet Koji Nakahara, Yuji Kaneko 2007-02-06
6818041 Magnetic alloy powder for permanent magnet and method for producing the same Yuji Kaneko 2004-11-16
5200001 Permanent magnet Satoshi Hirosawa, Atsushi Hanaki, Shuji Mino 1993-04-06