Inventor
UTSUMI SHIGEO
JP31 patents
⚠️ This page may combine multiple inventors who share the name “UTSUMI SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DIAFOIL CO LTD
25 patentsUS4814426AMar 21, 1989
Shrinkable polyester film for packaging
DIAFOIL CO LTD61 citations96
US4799772AJan 24, 1989
Uniaxially high-oriented polyethylene naphthalate film for liquid crystal panel substrates
DIAFOIL CO LTD51 citations96
US4756953AJul 12, 1988
Uniaxially high-oriented polyethylene naphthalate film for polarizing plates
DIAFOIL CO LTD80 citations96
US4990400AFeb 5, 1991
Polyester films, magnetic recording media and film capacitors produced therefrom
DIAFOIL CO LTD45 citations94
US5070180ADec 3, 1991
Shrinkable copolyester film
DIAFOIL CO LTD38 citations92
US4985538AJan 15, 1991
Shrinkable polyester film
DIAFOIL CO LTD42 citations92
US4985537AJan 15, 1991
Process of making a biaxially stretched polyester film and biaxially stretched polyester film
DIAFOIL CO LTD23 citations92
US4876137AOct 24, 1989
Polyethylene naphthalate film for high-density magnetic recording media of floppy disk
DIAFOIL CO LTD32 citations92
US4804736AFeb 14, 1989
Polyethylene-2,6-naphthalate film for magnetic recording tapes
DIAFOIL CO LTD28 citations92
US4677188AJun 30, 1987
Transparent slippery biaxially stretched polyester film
DIAFOIL CO LTD39 citations91
US4725479AFeb 16, 1988
Polyethylene naphthalate film for membrane switch
DIAFOIL CO LTD18 citations82
US5093064AMar 3, 1992
Low-shrinkage polyester film and preparation thereof
DIAFOIL CO LTD17 citations81
US4814221AMar 21, 1989
Polyethylene-2,6-naphthalate film for capacitor
DIAFOIL CO LTD16 citations74
US4812360AMar 14, 1989
Thermal transfer (printing) material
DIAFOIL CO LTD8 citations74
US4781963ANov 1, 1988
Magnetic recording medium
DIAFOIL CO LTD9 citations74
US4960636AOct 2, 1990
Biaxially oriented polyester film for floppy disk
DIAFOIL CO LTD9 citations73
US4769190ASep 6, 1988
Process for producing polyphenylene sulfide film
DIAFOIL CO LTD11 citations73
US4865898ASep 12, 1989
Polyester film for magnetic recording media
DIAFOIL CO LTD18 citations72
US4680217AJul 14, 1987
Polyester film for magnetic recording media
DIAFOIL CO LTD19 citations71
US4617164AOct 14, 1986
Process for stretching polyester films
DIAFOIL CO LTD13 citations71
US4610833ASep 9, 1986
Process for preparing biaxially stretched polyester films
DIAFOIL CO LTD13 citations71
US4977020ADec 11, 1990
Transfer material for use with printer
DIAFOIL CO LTD2 citations63
USRE34727ESep 13, 1994
Low-shrinkage polyester film and preparation thereof
DIAFOIL CO LTD4 citations62
US5045379ASep 3, 1991
Polyester film for high density magnetic recording medium
DIAFOIL CO LTD6 citations62
US4708902ANov 24, 1987
Polyester films suitable for use in magnetic recording media
DIAFOIL CO LTD3 citations56
DIAFOIL HOECHST CO LTD
4 patentsUS5441800AAug 15, 1995
Laminated polyester film for magnetic tape
DIAFOIL HOECHST CO LTD13 citations74
US5366783ANov 22, 1994
Laminated polyester film for magnetic tape having specific surface properties
DIAFOIL HOECHST CO LTD13 citations71
US5318823AJun 7, 1994
Polyester multilayered film for high-density magnetic disc
DIAFOIL HOECHST CO LTD8 citations71
US5510192AApr 23, 1996
Polyethylene naphthalate multilayered film for high density magnetic recording medium
DIAFOIL HOECHST CO LTD3 citations60