P

Inventor

HAGIWARA ATSUSHI

JP38 patents
⚠️ This page may combine multiple inventors who share the name “HAGIWARA ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NISSHIN SPINNING

27 patents
US6348279B1Feb 19, 2002

Separator for polymeric electrolyte fuel cell having a roughened surface

NISSHIN SPINNING58 citations96
US6242124B1Jun 5, 2001

Separator for polymer electrolyte fuel cells and processes for production thereof

NISSHIN SPINNING52 citations96
US5706165AJan 6, 1998

Electric double-layer capacitor

NISSHIN SPINNING89 citations96
US5786555AJul 28, 1998

Polarizable electrode for electric double-layer capacitor, and electric double-layer capacitor using said polarizable electrode

NISSHIN SPINNING70 citations95
US6881512B2Apr 19, 2005

Separator for fuel cell, process for production thereof, and solid polymer type fuel cell using said separator

NISSHIN SPINNING34 citations93
US6444344B1Sep 3, 2002

Material for fuel cell separator and fuel cell separator made from said material

NISSHIN SPINNING39 citations93
US5796574AAug 18, 1998

Vitreous carbon-active carbon composite material, process for producing said composite material, and polarizable electrode using said composite material for use in electric double layer capacitor

NISSHIN SPINNING25 citations93
US6939638B2Sep 6, 2005

Fuel cell separator, process for production thereof, and polymer electrolyte fuel cell

NISSHIN SPINNING28 citations92
US6764624B2Jul 20, 2004

Method of producing fuel cell separator, fuel cell separator, and polymer electrolyte fuel cell

NISSHIN SPINNING22 citations92
US6436567B1Aug 20, 2002

Separator for fuel cells

NISSHIN SPINNING21 citations92
US6024900AFeb 15, 2000

Process for production of a carbon composite material

NISSHIN SPINNING18 citations92
US5776372AJul 7, 1998

Carbon composite material

NISSHIN SPINNING35 citations92
US6884535B2Apr 26, 2005

Fuel cell separator

NISSHIN SPINNING16 citations84
US6803139B2Oct 12, 2004

Electrically conductive resinous composition, fuel cell separator and production thereof, and polymer electrolyte fuel cell

NISSHIN SPINNING15 citations84
US6686083B1Feb 3, 2004

Carbonaceous composite material, process for production thereof, fuel cell separator, and polymer electrolyte fuel cell

NISSHIN SPINNING15 citations84
US6461755B1Oct 8, 2002

Electroconductive resin composition, fuel cell separator made of said electroconductive resin composition, process for production of said fuel cell separator, and solid polymer type fuel cell using said fuel cell separator

NISSHIN SPINNING14 citations84
US6746792B2Jun 8, 2004

Fuel cell separator composition, fuel cell separator and method of manufacture, and solid polymer fuel cell

NISSHIN SPINNING16 citations83
US6494926B1Dec 17, 2002

Fuel cell separator and production method thereof

NISSHIN SPINNING7 citations74
US5972538AOct 26, 1999

Current collector for molten salt battery, process for producing material for said current collector, and molten salt battery using said current collector

NISSHIN SPINNING12 citations74
US5838531ANov 17, 1998

Polarizable electrode for electric double-layer capacitor, and electric double-layer capacitor using polarizable electrode

NISSHIN SPINNING10 citations74
US6815112B2Nov 9, 2004

Fuel cell separator and polymer electrolyte fuel cell

NISSHIN SPINNING8 citations72
US6569372B1May 27, 2003

Fuel cell separator production system and method, and fuel cell separator

NISSHIN SPINNING10 citations71
US6579083B2Jun 17, 2003

Mold for producing fuel cell separator

NISSHIN SPINNING7 citations70
US6998189B2Feb 14, 2006

Fuel cell separator and process for producing the same

NISSHIN SPINNING5 citations63
US6397901B1Jun 4, 2002

Powder material supply device for producing fuel cell separator

NISSHIN SPINNING6 citations63
US5989464ANov 23, 1999

Process for producing vitreous carbon-active carbon composite material

NISSHIN SPINNING4 citations63
US6593021B1Jul 15, 2003

Fuel cell separator and fuel cell of solid polymer type

NISSHIN SPINNING3 citations61

HAGIWARA ATSUSHI

4 patents

AMGEN INC

2 patents

JAPAN TOBACCO INC

2 patents

TANAKA SHINYA

2 patents

TULARIK INC

1 patent