TH

Takahiro Hirai

KT Kabushiki Kaisha Toshiba: 3 patents #139 of 2,065Top 7%
📍 Ibaraki, JP: #54 of 769 inventorsTop 8%
Overall (2002): #20,316 of 266,432Top 8%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6468440 Magnet powder and method for producing the same, and bonded magnet using the same Shinya Sakurada, Tomohisa Arai, Masami Okamura, Keisuke Hashimoto 2002-10-22
6416593 Magnetic material and manufacturing method thereof, and bonded magnet using the same Shinya Sakurada, Tomohisa Arai, Masami Okamura, Keisuke Hashimoto 2002-07-09
6406559 Magnetic material and manufacturing method thereof, and bonded magnet using the same Shinya Sakurada, Keisuke Hashimoto, Tomohisa Arai 2002-06-18