P

Inventor

TAKAHASHI MASATOSHI

JP111 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI MASATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJI PHOTO FILM CO LTD

21 patents
US6228461B1May 8, 2001

Magnetic recording tape

FUJI PHOTO FILM CO LTD132 citations97
US5827599AOct 27, 1998

Magnetic recording tape having a backcoat and specified edge profile

FUJI PHOTO FILM CO LTD23 citations89
US6444290B1Sep 3, 2002

Magnetic recording medium comprising a support containing a specific size filler and having a specific concentration of surface protrusions

FUJI PHOTO FILM CO LTD14 citations83
US6291052B1Sep 18, 2001

Magnetic recording medium

FUJI PHOTO FILM CO LTD15 citations83
US4786557ANov 22, 1988

Magnetic recording medium of continuous form

FUJI PHOTO FILM CO LTD23 citations82
US4693929ASep 15, 1987

Magnetic recording medium

FUJI PHOTO FILM CO LTD24 citations82
US7169438B2Jan 30, 2007

Magnetic recording medium

FUJI PHOTO FILM CO LTD5 citations74
US6316077B1Nov 13, 2001

Magnetic recording medium

FUJI PHOTO FILM CO LTD12 citations74
US5370932ADec 6, 1994

Magnetic recording medium

FUJI PHOTO FILM CO LTD8 citations74
US5153053AOct 6, 1992

Magnetic recording medium comprising a lower magnetic layer containing an amine modified vinyl chloride copolymer and an upper magnetic layer containing a vinyl chloride copolymer with a polar group

FUJI PHOTO FILM CO LTD15 citations74
US4988562AJan 29, 1991

Magnetic recording media

FUJI PHOTO FILM CO LTD17 citations74
US4880692ANov 14, 1989

Magnetic recording medium

FUJI PHOTO FILM CO LTD10 citations74
US4803121AFeb 7, 1989

Magnetic recording medium

FUJI PHOTO FILM CO LTD10 citations74
US4780353AOct 25, 1988

Magnetic recording medium

FUJI PHOTO FILM CO LTD8 citations74
US4731278AMar 15, 1988

Magnetic recording medium

FUJI PHOTO FILM CO LTD9 citations74
US6767610B2Jul 27, 2004

Magnetic tape having specific surface recording density and comprising a support having specific surface roughness

FUJI PHOTO FILM CO LTD9 citations73
US5795645AAug 18, 1998

Magnetic recording medium

FUJI PHOTO FILM CO LTD9 citations73
US4686139AAug 11, 1987

Magnetic recording medium

FUJI PHOTO FILM CO LTD9 citations73
US5922483AJul 13, 1999

Magnetic recording medium

FUJI PHOTO FILM CO LTD14 citations72
US5578376ANov 26, 1996

Magnetic recording medium having a magnetic layer comprising a specified ferromagnetic metal powder and a specified polyurethane binder

FUJI PHOTO FILM CO LTD15 citations72
US5089331AFeb 18, 1992

Magnetic recording medium

FUJI PHOTO FILM CO LTD8 citations70

SANYO ELECTRIC CO

12 patents

SHINETSU CHEMICAL CO

4 patents

HITACHI LTD

3 patents

SHINETSU HANDOTAI KK

2 patents

ASAHI TECHNO GLASS CORP

2 patents

SUMITOMO RUBBER IND

1 patent

HITACHI ULSI SYS CO LTD

1 patent

SONY CORP

1 patent

DUPLO CORP

1 patent

LION CORP

1 patent

LION FAT OIL CO LTD

1 patent

Showing the top 50 of 111 patents by PatentIndex Score.