KT

Kiyonori Tokuno

NM Nippon Steel & Sumitomo Metal: 10 patents #63 of 1,491Top 5%
NS Nippon Steel: 4 patents #672 of 4,423Top 20%
Overall (All Time): #342,384 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
11760887 Titanium material Michio Kaneko, Takao Wada, Mitsuyuki Hasegawa, Kazuo Yamagishi, Mitsuru Nakayama 2023-09-19
10305119 Titanium material or titanium alloy material having surface electrical conductivity and method for producing the same, and fuel cell separator and fuel cell using the same Kazuhiro Takahashi, Taku Kagawa, Masanari Kimoto, Junko IMAMURA, Atsuhiko Kuroda 2019-05-28
10074857 Titanium or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and manufacturing method therefor Hiroshi Kihira, Yuuichi Yosida, Taku Kagawa, Takumi Nishimoto, Koki Tanaka +3 more 2018-09-11
10033052 Titanium material or titanium alloy material having surface electrical conductivity, and fuel cell separator and fuel cell using the same Kazuhiro Takahashi, Taku Kagawa, Masanari Kimoto, Junko IMAMURA, Atsuhiko Kuroda 2018-07-24
9947942 Titanium material or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and fuel cell Kazuhiro Takahashi, Taku Kagawa, Hiroshi Kihira, Takumi Nishimoto, Koki Tanaka 2018-04-17
9885102 Colored pure titanium or titanium alloy having low susceptibility to discoloration in atmospheric environment Michio Kaneko, Takao Wada, Mitsuyuki Hasegawa, Kazuo Yamagishi 2018-02-06
9065081 Titanium material for solid polymer fuel cell separator use and method of production of same Koki Tanaka, Kazuhiro Takahashi, Hiroshi Kihira 2015-06-23
9011976 Titanium sheet covered with protective film superior in high temperature oxidation resistance and high temperature salt damage resistance, automobile exhaust system using same, and methods of production of same Hiroaki Otsuka, Hideki Fujii, Yoshiaki Itami, Takashi Domoto 2015-04-21
8865612 Titanium-based material having visible light response and excellent in photocatalytic activity and method of production of same Michio Kaneko, Hiroshi Shimizu, Kazuo Yamagishi, Asami Shimomura, Mituyuki Hasegawa +1 more 2014-10-21
8785031 Polymer electrolyte fuel cell separator made of pure titanium or titanium alloy and method of production of same Michio Kaneko, Kazuhiro Takahashi, Hiroshi Kihira, Wataru Hisada 2014-07-22
8603268 Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of same Kazuhiro Takahashi, Hiroshi Kihira, Koki Tanaka, Michio Kaneko 2013-12-10
7594973 Titanium material less susceptible to discoloration and method for production thereof Kazuhiro Takahashi, Teruhiko Hayashi, Michio Kaneko, Junichi Tamenari, Kinichi Kimura 2009-09-29
7547671 Discoloration removal cleaning agent for titanium and titanium alloy building materials, and discoloration removal cleaning method Michio Kaneko, Hiroshi Shimizu, Takateru Dekura 2009-06-16
6863987 Titanium resistant to discoloration in atmospheric environment and process of production of same Michio Kaneko, Teruhiko Hayashi, Kazuhiro Takahashi, Junichi Tamenari, Kinichi Kimura +2 more 2005-03-08