公开(公告)号：US11502307B2

公开(公告)日：2022-11-15

申请号：US17022297

申请日：2020-09-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOHO TITANIUM CO., LTD.

Inventor： Hiroyuki Kawai ,  Yosuke Inoue

IPC: H01M4/88

Abstract: A manufacturing method of a gas diffusion layer with a microporous layer includes coating a gas diffusion layer containing titanium with a precursor containing an electroconductive material, a water-repellent resin, and a polyethylene oxide, and heating the gas diffusion layer coated with the precursor to form a microporous layer containing the electroconductive material and the water-repellent resin on a surface of the gas diffusion layer. The heating atmosphere is a non-oxidation atmosphere where an oxygen concentration is no more than 0.3% by volume.

公开(公告)号：US20210108287A1

公开(公告)日：2021-04-15

申请号：US16498790

申请日：2018-02-19

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Yosuke Inoue ,  Masanori Yamaguchi

IPC: C22B34/12 ,  C22B5/04

Abstract: Provided is sponge titanium produced by the Kroll method, in which the total of a chlorine content and a magnesium content is 350 ppm by mass or lower, and a filling density is 1.65 g/cm3 to 1.95 g/cm3. The present invention can provide sponge titanium for large ingot production that is difficult to cause problems due to chloride inclusion at the time of melting production of the large ingot by a melting method not associated with compression molding and has easy component control and also provide a method for industrially efficiently producing the sponge titanium.