Inventor
YAMAMOTO KATSUTOSHI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO KATSUTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DAIKIN IND LTD
27 patentsUS5772884AJun 30, 1998
Porous polytetrafluoroethylene film and process for preparation thereof
DAIKIN IND LTD108 citations97
US5234739AAug 10, 1993
Polytetrafluoroethylene porous film and preparation and use thereof
DAIKIN IND LTD120 citations97
US5562986AOct 8, 1996
Polytetrafluoroethylene fibers, polytetrafluoroethylene materials and process for preparation of the same
DAIKIN IND LTD55 citations96
US5409515AApr 25, 1995
Filter apparatus and filter element
DAIKIN IND LTD66 citations96
US5225131AJul 6, 1993
Process for producing multilayer polytetrafluoroethylene porous membrane and semisintered polytetrafluoroethylene multilayer structure
DAIKIN IND LTD85 citations96
US5217666AJun 8, 1993
Process for producing porous polytetrafluoroethylene film
DAIKIN IND LTD54 citations96
US5064593ANov 12, 1991
Process for producing multilayer polytetrafluoroethylene porous membrane
DAIKIN IND LTD85 citations96
US4830062AMay 16, 1989
Porous heat-shrinkable tetrafluoroethylene polymer tube and process for producing the same
DAIKIN IND LTD66 citations96
US4596837AJun 24, 1986
Semisintered polytetrafluoroethylene article and production thereof
DAIKIN IND LTD94 citations96
US6479143B1Nov 12, 2002
Heat-meltable fluororesin fibers
DAIKIN IND LTD50 citations92
US6416896B1Jul 9, 2002
Material for electrode comprising a non-woven fabric composed of a fluorine-containing resin fiber
DAIKIN IND LTD38 citations92
US6235388B1May 22, 2001
Fibrous materials of fluororesins and deodorant and antibacterial fabrics made by using the same
DAIKIN IND LTD46 citations92
US6156681ADec 5, 2000
Multi layered felt, member formed of same, and method of manufacturing same
DAIKIN IND LTD31 citations92
US6133165AOct 17, 2000
Bulky polytetrafluoroethylene filament and split yarn, method of producting thereof, method of producing cotton-like materials by using said filament or split yarn and filter cloth for dust collection
DAIKIN IND LTD40 citations92
US5912077AJun 15, 1999
Cotton-like mixed materials, non-woven fabrics obtained therefrom and process for production thereof
DAIKIN IND LTD31 citations92
US5834528ANov 10, 1998
Polytetrafluoroethylene porous composite film
DAIKIN IND LTD43 citations92
US5807633ASep 15, 1998
Polytetrafluoroethylene composite fiber, cotton-like materials obtained therefrom and processes for production thereof
DAIKIN IND LTD21 citations92
US5171805ADec 15, 1992
Modified polytetrafluoroethylene and process for preparing the same
DAIKIN IND LTD24 citations91
US4440879AApr 3, 1984
Process for preparing filler-containing polytetrafluoroethylene fine powder
DAIKIN IND LTD28 citations91
US5688836ANov 18, 1997
Polytetrafluoroethylene porous material and process for production of the same
DAIKIN IND LTD23 citations90
US4159370AJun 26, 1979
Polytetrafluoroethylene fine powder and process for producing the same
DAIKIN IND LTD34 citations87
US4451616AMay 29, 1984
Process for preparation of filter-containing polytetrafluoroethylene fine powder
DAIKIN IND LTD21 citations80
US6117556ASep 12, 2000
Tape for sealing screw joints
DAIKIN IND LTD12 citations74
US6987224B2Jan 17, 2006
Polytetrafluoroethylene mixed powder used for insulation of product for high frequency signal transmission and product for high frequency signal transmission using the same
DAIKIN IND LTD7 citations73
US5998022ADec 7, 1999
Polytetrafluoroethylene cotton-like materials
DAIKIN IND LTD7 citations73
USD366106SJan 9, 1996
Air filter
DAIKIN IND LTD9 citations73
US6355135B1Mar 12, 2002
Method of laminating gas permeable sheet material
DAIKIN IND LTD4 citations62