KY

Kenji Yamaga

Tdk: 27 patents #163 of 3,796Top 5%
HI Hitachi: 20 patents #1,757 of 28,497Top 7%
Overall (All Time): #60,795 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDate
10702944 Alloy structure and method for producing alloy structure Takahiko Kato, Kousuke Kuwabara, Tadashi Fujieda, Kinya Aota, Isamu Takahashi +2 more 2020-07-07
10576538 Alloy structure and method for producing alloy structure Takahiko Kato, Kousuke Kuwabara, Tadashi Fujieda, Kinya Aota, Isamu Takahashi +2 more 2020-03-03
8647784 Fuel cell stack start method preventing cathode deterioration Katsunori Nishimura, Osamu Kubota, Ko Takahashi 2014-02-11
8257874 Fuel cell with cooling method at start up Hironori Sasaki 2012-09-04
8197987 Separator for fuel cell Hironori Sasaki, Katsunori Nishimura 2012-06-12
8137856 Fuel cell Tsutomu Okusawa, Masaya Kozakai 2012-03-20
7952984 Optical recording medium and method of recording and reproducing of optical recording medium Koji Mishima, Daisuke Yoshitoku 2011-05-31
7932015 Optical recording medium Koji Mishima, Hiroyasu Inoue, Tsuyoshi Komaki, Daisuke Yoshitoku, Hitoshi Arai +1 more 2011-04-26
7745032 Fuel cell with humidifier Katsunori Nishimura, Jinichi Imahashi, Masahiro Komachiya, Makoto Morishima 2010-06-29
7745035 Separator and fuel cell using thereof Hiroshi Yamauchi, Ko Takahashi 2010-06-29
7678486 Separator for fuel cell and fuel cell containing the separator Hiroshi Yamauchi, Ko Takahashi 2010-03-16
7680018 Optical recording medium, and manufacturing method and manufacturing device thereof Tomoki Ushida, Mamoru Usami 2010-03-16
7560185 Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell Toru Koyama, Toshiyuki Kobayashi, Tomoichi Kamo, Kazutoshi Higashiyama 2009-07-14
7553574 Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell Toru Koyama, Toshiyuki Kobayashi, Tomoichi Kamo, Kazutoshi Higashiyama 2009-06-30
7541107 Solid polyelectrolyte, assembly of membrane and electrodes, amd fuel cell Tohru Koyama, Toshiyuki Kobayashi, Tomoichi Kamo, Kazutoshi Higashiyama 2009-06-02
7524548 Optical recording medium Hiroshi Shingai, Hironori Kakiuchi, Hideaki Miura 2009-04-28
7517574 Optical recording medium and method for manufacturing the same Daisuke Yoshitoku, Koji Mishima 2009-04-14
7507457 Optical recording medium and method of manufacturing the same Koji Mishima, Daisuke Yoshitoku 2009-03-24
7502309 Optical recording medium having a relationship between convex width and track pitch Tsuyoshi Komaki 2009-03-10
7458088 Intermediate for optical recording medium and method of manufacturing the optical recording medium Junichi Ide, Mamoru Usami, Tomoki Ushida, Atsushi Koyama 2008-11-25
7447139 Light-receiving element, optical head, optical recording/reproducing apparatus, and method of optical recording and reproduction Giichi Shibuya, Teiichiro Oka, Koji Mishima, Daisuke Yoshitoku 2008-11-04
7399511 Optical recording medium Koji Mishima, Daisuke Yoshitoku 2008-07-15
7385911 Optical recording medium having multiple layers of different thermal conductivities Daisuke Yoshitoku, Koji Mishima, Tsuyoshi Komaki, Shigeru Yamatsu 2008-06-10
7368156 Method for manufacturing discoid optical record medium and discoid optical record medium Mamoru Usami, Tomoki Ushida, Yoshimi Sakai 2008-05-06
7357970 Optical recording medium Daisuke Yoshitoku, Koji Mishima, Hitoshi Arai 2008-04-15