公开(公告)号：US20220213325A1

公开(公告)日：2022-07-07

申请号：US17697077

申请日：2022-03-17

Applicant: TOPPAN Inc.

Inventor： Reiko IWATA ,  Yuri HIRAI ,  Hanae TAGAMI ,  Takenori GODA ,  Hiroyuki CHINONE

IPC: C09B67/20 ,  C09B23/16 ,  C08K5/529 ,  C08F20/18 ,  G02B5/20 ,  G02B1/04

Abstract: An infrared cut-off filter including a cyanine dye including a tris(pentafluoroethyl) trifluorophosphate anion and a cation having a polymethine and a nitrogen-containing heterocycle located at each end of the polymethine, and an acrylic polymer having a unit structure of formula (1).

公开(公告)号：US20230411640A1

公开(公告)日：2023-12-21

申请号：US18241791

申请日：2023-09-01

Applicant: TOPPAN INC.

Inventor： Hiroyuki CHINONE

IPC: H01M4/92 ,  H01M8/1004

CPC classification number: H01M4/926 ,  H01M8/1004 ,  H01M2008/1095

Abstract: A membrane electrode assembly includes: a polymer electrolyte membrane; a pair of electrode catalyst layers in contact with the surfaces of the polymer electrolyte membrane with the polymer electrolyte membrane therebetween; and a gas diffusion layer laminated on each of the pair of electrode catalyst layers. Each electrode catalyst layer includes catalytic substances, carbon particles, polymer electrolyte aggregates, and fibrous substances, and the gas diffusion layer has a Gurley value, which represents the air permeability in the thickness direction, of 1.0 second or more and 3.0 seconds or less.

公开(公告)号：US20230275239A1

公开(公告)日：2023-08-31

申请号：US18122438

申请日：2023-03-16

Applicant: TOPPAN INC.

Inventor： Hiroyuki CHINONE ,  Madoka OZAWA

IPC: H01M4/92 ,  H01M8/1018 ,  H01M8/1065

CPC classification number: H01M4/926 ,  H01M8/1018 ,  H01M8/1065 ,  H01M2008/1095

Abstract: An object is to provide an electrode catalyst layer, a membrane electrode assembly, and a polymer electrolyte fuel cell that can suppress decrease in durability of the membrane electrode assembly and decrease in power generation performance of the polymer electrolyte fuel cell by suppressing crack generation in the electrode catalyst layer. An electrode catalyst layer according to one aspect of the present invention is an electrode catalyst layer including at least: a catalytic substance; aggregates of polymer electrolytes; and polymer electrolyte fibers. In the electrode catalyst layer, an amount of phosphorus and an amount of platinum defined via elemental analysis by energy dispersive X-ray spectroscopy (EDX) satisfy a following equation (1). 0