| Patent | Date |
|---|
Magnetic recording medium
Grant 6,376,083 - Murayama , et al. April 23, 2 | 2002-04-23 |
Radiation-setting composition containing (meth)acrylic copolymers containing acid groups
Grant 6,191,184 - Suzuki , et al. February 20, 2 | 2001-02-20 |
Magnetic recording medium
Grant 5,747,157 - Hashimoto , et al. May 5, 1 | 1998-05-05 |
Magnetic recording medium comprising ferromagnetic powder and a specified polyurethane resin
Grant 5,702,821 - Murayama , et al. December 30, 1 | 1997-12-30 |
Magnetic recording medium having a magnetic layer comprising a specified ferromagnetic metal powder and a specified polyurethane binder
Grant 5,578,376 - Hashimoto , et al. November 26, 1 | 1996-11-26 |
Magnetic recording medium having a magnetic layer containing ferromagnetic powder and a polyurethane resin obtained from a polyolefin polyol or a polybutadiene polyol
Grant 5,525,418 - Hashimoto , et al. June 11, 1 | 1996-06-11 |
Magnetic recording medium having a vinyl-chloride resin and a urethane resin binder system each of which resins contain three percent or less of a low molecular weight resin fraction
Grant 5,153,063 - Okita , et al. October 6, 1 | 1992-10-06 |
Magnetic recording medium having two magnetic layers each containing a specified polyurethane resin
Grant 5,141,808 - Hashimoto , et al. August 25, 1 | 1992-08-25 |
Magnetic recording medium having a surface with pores of specified average inlet diameter and wide pore size distribution controlled by calender treatment
Grant 5,126,215 - Aonuma , et al. June 30, 1 | 1992-06-30 |
Magnetic recording medium having a backcoat layer comprising non-magnetic particles dispersed in a vinyl copolymer containing a dialkylaminoalkyl group
Grant 5,098,783 - Watanabe , et al. * March 24, 1 | 1992-03-24 |
Magnetic recording medium lubricated by a three component fatty acid ester-fatty acid amide composition
Grant 5,091,268 - Nishikawa , et al. February 25, 1 | 1992-02-25 |
Magnetic recording medium comprising a polyurethane resin having a thio, thiocarboxy or dithiocarboxy group; a vinyl chloride resin containing a polar group and a hyroxy group; and a polyisocyanate compound
Grant 5,084,341 - Hashimoto , et al. January 28, 1 | 1992-01-28 |
Magnetic recording medium containing a binder which is chemically bonded to crosslinked resin fine particles contained in the magnetic layer
Grant 5,079,085 - Hashimoto , et al. January 7, 1 | 1992-01-07 |
Magnetic recording medium comprising a polar group containing resin or compound and a methyl iso ester lubricant prepared from a methyl iso acid or methyl iso alcohol or both
Grant 5,061,564 - Ohya , et al. October 29, 1 | 1991-10-29 |
Magnetic recording medium containing an organic silicone compound having branched chaw saturated hydrocarbon groups
Grant 5,051,318 - Nishikawa , et al. September 24, 1 | 1991-09-24 |
Method for preparing a magnetic recording medium
Grant 4,976,989 - Aonuma , et al. December 11, 1 | 1990-12-11 |
Magnetic recording medium
Grant 4,880,693 - Ryoke , et al. * November 14, 1 | 1989-11-14 |
Magnetic recording medium
Grant 4,837,081 - Yamada , et al. June 6, 1 | 1989-06-06 |
Magnetic recording medium
Grant 4,812,351 - Okita , et al. March 14, 1 | 1989-03-14 |
Magnetic recording medium
Grant 4,781,965 - Hashimoto , et al. * November 1, 1 | 1988-11-01 |
Magnetic recording medium
Grant 4,713,287 - Nishikawa , et al. December 15, 1 | 1987-12-15 |
Process for preparing a magnetic recording medium
Grant 4,707,380 - Hashimoto , et al. November 17, 1 | 1987-11-17 |
Magnetic recording medium and process for producing the same
Grant 4,693,927 - Nishikawa , et al. September 15, 1 | 1987-09-15 |
Magnetic recording medium
Grant 4,664,965 - Okita , et al. May 12, 1 | 1987-05-12 |
Magnetic recording medium
Grant 4,664,964 - Okita , et al. May 12, 1 | 1987-05-12 |
Magnetic recording material
Grant 4,657,817 - Okita , et al. April 14, 1 | 1987-04-14 |
Magnetic recording medium
Grant 4,619,856 - Kamada , et al. October 28, 1 | 1986-10-28 |
Antistatic plastic films
Grant 4,571,361 - Kawaguchi , et al. February 18, 1 | 1986-02-18 |
Magnetic recording medium having binder cured by electron beam radiation
Grant 4,560,616 - Okita , et al. December 24, 1 | 1985-12-24 |
Method for surface treatment of ferromagnetic fine powder and forming a magnetic recording device
Grant 4,533,565 - Okita August 6, 1 | 1985-08-06 |
Magnetic recording medium
Grant 4,486,500 - Naruo , et al. December 4, 1 | 1984-12-04 |
Magnetic recording material
Grant 4,468,436 - Okita , et al. August 28, 1 | 1984-08-28 |
Magnetic recording medium and process for producing the same
Grant 4,448,848 - Okita , et al. May 15, 1 | 1984-05-15 |
Magnetic recording medium
Grant 4,443,514 - Yamamoto , et al. April 17, 1 | 1984-04-17 |
Process for producing magnetic recording material
Grant 4,428,974 - Okita , et al. January 31, 1 | 1984-01-31 |
Process for producing a magnetic recording medium
Grant 4,407,853 - Okita , et al. October 4, 1 | 1983-10-04 |
Magnetic recording medium
Grant 4,391,874 - Yamamoto , et al. July 5, 1 | 1983-07-05 |
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