MK

Masaki Kumagai

SI Sumitomo Light Metal Industries: 13 patents #1 of 254Top 1%
UA Uacj: 3 patents #55 of 238Top 25%
Kawasaki: 2 patents #1,008 of 2,943Top 35%
OB Obara: 2 patents #12 of 35Top 35%
DE Denso: 1 patents #6,940 of 11,792Top 60%
Overall (All Time): #275,253 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
10016837 Method of joining heat-treatable aluminum alloy members by friction stir welding Tadashi Minoda, Koji Tanaka 2018-07-10
9302343 Process for spot-joining stacked metal foils Hideki Okada, Arinobu Mori, Kenji Hayafuji 2016-04-05
9193320 Impact absorbing member and bumper device Yutaka Yamada, Sunao Tanaka, Koshi Okada, Takuya Fukunaga 2015-11-24
8742294 MIG welded joint between aluminum and steel members and MIG welding process Toshihiko Fukuda 2014-06-03
8028888 Method of joining together end portions of superposed members 2011-10-04
7810700 Heat treating friction stir welded aluminum alloy members and joined product Tadashi Minoda, Koji Tanaka 2010-10-12
7802716 Method of manufacturing heat exchanger tube and heat exchanger Hiroshi Nishikawa, Kenta Gotyo, Takashi Hattori, Yasunaga Itoh 2010-09-28
7802713 Friction stir spot joining device Kazumi Fukuhara, Toshihiko Fukuda, Yoshio Sato, Kenta Aoki 2010-09-28
7800011 MIG welded joint between aluminum and steel members and MIG welding process Toshihiko Fukuda 2010-09-21
7654435 Rotary tool for friction stir spot welding and method of friction stir spot welding using the same Kenta Aoki 2010-02-02
6921010 Method of joining together two planar members by friction stir welding, and tab plate used in the same method Sunao Tanaka 2005-07-26
6892928 Method of manufacturing tubular body, by friction stir welding Sunao Tanaka 2005-05-17
5451366 Product of a halogen containing Ti-Al system intermetallic compound having a superior oxidation and wear resistance Kazuhisa Shibue, Mok Soon KIM, Tsutomu Furuyama 1995-09-19
5391854 Method of spot welding aluminum alloys Keizo Namba, Hiromichi Sano, Koichi Maeda 1995-02-21
5382929 Monolithic crystal filter Kiyohisa Inao, Koji Mizuki, Takeo Seki 1995-01-17
5372663 Powder processing of titanium aluminide having superior oxidation resistance Kazuhisa Shibue, Mok Soon KIM 1994-12-13
5334814 Electrode for spot welding Tadashi Nosetani, Keizo Namba, Hiromichi Sano, Makoto Yonemitsu, Masanori Tsunekawa 1994-08-02