ME

Masakuni Ezumi

HI Hitachi: 61 patents #158 of 28,497Top 1%
Overall (All Time): #37,090 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 26–50 of 62 patents

Patent #TitleCo-InventorsDate
6622904 Friction stir bonding method Kazushige Fukuyori 2003-09-23
6619534 Friction stir welding method using members which overlap and have protrusion at the weld location prior to the welding Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2003-09-16
6613447 Structural body formed by friction stir welding and having protrusion at the weld provided prior to the welding Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2003-09-02
6607837 Structural body formed by friction stir welding method Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2003-08-19
6595403 Friction stir welding method Hisanori Okamura, Masahiko Sakamoto, Kinya Aota, Isao Funyu, Kouichi Watanabe +2 more 2003-07-22
6585443 Structural body formed by friction stir welding two members, one of which has a protruding portion Kinya Aota, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou 2003-07-01
6582831 Friction stir welded body and frame member therefor Kazushige Fukuyori, Tetsuya Matsunaga 2003-06-24
6557746 Friction stir bonding method Kazushige Fukuyori, Tetsuya Matsunaga 2003-05-06
6536651 Friction stir welding method Kazushige Fukuyori 2003-03-25
6533493 Structural body Kinya Aota, Yasuo Ishimaru, Takeshi Kawasaki 2003-03-18
6532712 Structural body and method of manufacture thereof Takeshi Kawasaki, Masaki Yono, Toshiaki Sagawa 2003-03-18
6530713 Structural body Kinya Aota, Yasuo Ishimaru, Takeshi Kawasaki 2003-03-11
6530513 Friction stir welding method, and method for manufacturing car body Kazushige Fukuyori 2003-03-11
6527470 Structural body and friction stir welding method Kinya Aota, Yasuo Ishimaru, Takeshi Kawasaki 2003-03-04
6513698 Method of manufacture of a structural body Kazusige Fukuyori, Akihiro Satou 2003-02-04
6502739 Method of manufacture of a structural body Kazusige Fukuyori, Akihiro Satou 2003-01-07
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