ME

Masakuni Ezumi

HI Hitachi: 9 patents #32 of 3,950Top 1%
Overall (2002): #2,124 of 266,432Top 1%
9
Patents 2002

Issued Patents 2002

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6494011 Hollow extruded frame member for friction stir welding Akihiro Satou, Kazusige Fukuyori, Takeshi Kawasaki 2002-12-17
6474533 Friction stir welding method Kazusige Fukuyori, Yoshihiko Ina, Tetsuya Matsunaga 2002-11-05
6471112 Friction stir welding method Akihiro Satou, Kazusige Fukuyori 2002-10-29
6422449 Method of mending a friction stir welding portion Kazusige Fukuyori, Akihiro Satou 2002-07-23
6419144 Method of forming structural body using friction stir welding, and structural body formed Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2002-07-16
6382498 Friction stir welding method including positioning of rotary tool, and structural body formed thereby Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2002-05-07
6378754 Friction stir welding method including removal of protruding portion, and structural body formed thereby Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2002-04-30
6378264 Structure body and method of manufacture thereof Takeshi Kawasaki, Masaki Yono, Toshiaki Sagawa 2002-04-30
6354483 Friction stir welding method Kazushige Fukuyori, Tetsuya Matsunaga 2002-03-12