公开(公告)号：EP2626228A4

公开(公告)日：2018-04-18

申请号：EP11830665

申请日：2011-10-04

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： YOSIDA YUUICHI ,  YAMAMOTO SHUJI ,  SETO ATSUSHI

IPC分类号： B60K15/03

CPC分类号： B60K15/03 ,  B60K2015/03032 ,  B60K2015/03105 ,  B60K2015/03111 ,  B60K2015/0346

摘要： A fuel tank for a vehicle is formed of a tank main body in which an upper tank and a lower tank (120) are mutually joined to form a closed space in which fuel is housed, and a sub-tank (130) fixed to a bottom surface part of the lower tank (120) by spot welding (150), in which a plurality of rows of the spot welding (150) are set along a longitudinal direction of the lower tank (120) with an interval therebetween in a width direction of the sub-tank (130), at least one bead (142) positioned between the rows of the spot welding (150) and extending continuously along the longitudinal direction of the lower tank is formed on the bottom surface part of the lower tank (120), and a lower surface of the sub-tank (130) has no portion that is not brought into contact with the bottom surface part of the lower tank (120) except for the bead (142).

公开(公告)号：EP2926939A4

公开(公告)日：2016-08-03

申请号：EP13858775

申请日：2013-11-28

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： TSUCHIYA SHOKO ,  KODAMA SHINJI ,  YOSIDA YUUICHI ,  ISHIDA YOSHINARI ,  OGAWA MASAHIRO

IPC分类号： B23K31/00 ,  B23K9/00 ,  B23K9/02 ,  B23K9/025 ,  B23K9/028 ,  B23K9/23 ,  B23K101/18 ,  B23K103/04 ,  B60G7/00

CPC分类号： B23K9/0043 ,  B23K9/025 ,  B23K9/028 ,  B23K9/23 ,  B23K2201/006 ,  B23K2201/18 ,  B23K2203/04 ,  B23K2203/05 ,  B60G2206/8201 ,  Y10T403/479

公开(公告)号：EP2882019A4

公开(公告)日：2016-03-30

申请号：EP13826045

申请日：2013-07-30

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： KIHIRA HIROSHI ,  YOSIDA YUUICHI ,  KAGAWA TAKU ,  NISHIMOTO TAKUMI ,  TANAKA KOKI ,  KIMURA MASAO ,  TOKUNO KIYONORI ,  TAKAHASHI KAZUHIRO ,  DOMOTO TAKASHI

IPC分类号： H01M8/02 ,  C23C22/24 ,  C23C26/00 ,  C23C28/04 ,  C25D11/26 ,  H01M8/0206 ,  H01M8/0208 ,  H01M8/0228 ,  H01M8/10

CPC分类号： H01M8/0228 ,  C23C14/34 ,  C23C22/24 ,  C23C22/54 ,  C23C28/042 ,  C23C28/322 ,  C23C28/324 ,  C23C28/3455 ,  C25D11/00 ,  C25D11/26 ,  H01M8/0206 ,  H01M8/0208 ,  Y02P70/56

摘要： [Object] To provide a titanium or titanium alloy material for a separator of a polymer electrolyte fuel cell having high contact conductivity with carbon and high durability. [Solution] The titanium or titanium alloy material includes an oxide film formed on a titanium or titanium alloy substrate by stabilization treatment performed after passivation treatment, and one or more kinds of conductive materials selected from carbide, nitride, carbonitride, and boride of tantalum, titanium, vanadium, zirconium, and chromium, the conductive materials being dispersed in the oxide film and having a major axis diameter from 1 nm to 100 nm. A contact resistance value with a carbon paper is 20 m©·cm 2 or less at a surface pressure of 10 kgf/cm 2 before and after an accelerated deterioration test in which the titanium or titanium alloy material is immersed in a sulfuric acid aqueous solution having an adjusted pH of 4 at 80 °C for four days.