Magnetic tape recording system having tape with defined...

Details Magnetic tape recording system having tape with defined... Magnetic tape recording system having tape with defined...

2005-09-22

2008-09-09

Rickman, Holly (Department: 1794)

Dynamic magnetic information storage or retrieval

Record medium

Tape

C428S842000

Reexamination Certificate

active

07423840

ABSTRACT:
A magnetic recording tape exhibits reduced magnetic flux modulation and improved signal-to-noise ratio. Providing a magnetic recording layer with a more uniform thickness can improve the magnetic flux modulation characteristic. For example, the magnetic recording tape may have a coercivity of greater than or equal to 2000 Oe with a magnetic flux modulation characteristic having a one sigma standard deviation of less than 0.06. In some cases, the magnetic flux modulation characteristic may have a one sigma standard deviation of less than 0.05, or even 0.04. Reduced magnetic flux modulation can support increased storage densities.

REFERENCES:
patent: 2761419 (1956-09-01), Mercier et al.
patent: 3782947 (1974-01-01), Krall
patent: 4113903 (1978-09-01), Choinski
patent: 4203769 (1980-05-01), Guestaux
patent: 4731292 (1988-03-01), Sasaki et al.
patent: 4784907 (1988-11-01), Matsufuji et al.
patent: 4784914 (1988-11-01), Matsufuji et al.
patent: 4837045 (1989-06-01), Nakajima
patent: 4842900 (1989-06-01), Miyamoto
patent: 4854262 (1989-08-01), Chino et al.
patent: 4984533 (1991-01-01), Takahashi et al.
patent: 5030484 (1991-07-01), Chino et al.
patent: 5034271 (1991-07-01), Miyoshi et al.
patent: 5072688 (1991-12-01), Chino et al.
patent: 5083524 (1992-01-01), Hiraki et al.
patent: 5099786 (1992-03-01), Shibata et al.
patent: 5108787 (1992-04-01), Hiraki et al.
patent: 5119757 (1992-06-01), Chino et al.
patent: 5165999 (1992-11-01), Ushimaru et al.
patent: 5203922 (1993-04-01), Shibata et al.
patent: 5258231 (1993-11-01), Okita et al.
patent: 5294525 (1994-03-01), Yamauchi et al.
patent: 5395743 (1995-03-01), Brick et al.
patent: 5413900 (1995-05-01), Yokota
patent: 5496607 (1996-03-01), Inaba et al.
patent: 5501903 (1996-03-01), Erkkila et al.
patent: 5510187 (1996-04-01), Kumar et al.
patent: 5514528 (1996-05-01), Chen et al.
patent: 5593734 (1997-01-01), Yuan et al.
patent: 5597680 (1997-01-01), Wang et al.
patent: 5681687 (1997-10-01), Lelental et al.
patent: 5709985 (1998-01-01), Morrison et al.
patent: 5712345 (1998-01-01), Erkkila et al.
patent: 5725665 (1998-03-01), Yapel et al.
patent: 5735969 (1998-04-01), Lown et al.
patent: 5756272 (1998-05-01), Landry-Coltrain et al.
patent: 5759666 (1998-06-01), Carlson et al.
patent: 5763046 (1998-06-01), Ejiri et al.
patent: 5763076 (1998-06-01), Coons, III et al.
patent: 5772857 (1998-06-01), Zhang
patent: 5784914 (1998-07-01), Cianl
patent: 5798136 (1998-08-01), Landry-Coltrain et al.
patent: 5804360 (1998-09-01), Schell et al.
patent: 5821027 (1998-10-01), Landry-Coltrain et al.
patent: 5834174 (1998-11-01), Smith et al.
patent: 5837324 (1998-11-01), Yapel et al.
patent: 5843530 (1998-12-01), Jerry et al.
patent: 5846699 (1998-12-01), Wang et al.
patent: 5849363 (1998-12-01), Yapel et al.
patent: 5853819 (1998-12-01), Lelental et al.
patent: 5861195 (1999-01-01), Bhave et al.
patent: 5866312 (1999-02-01), Wang et al.
patent: 5932330 (1999-08-01), Ohkubo et al.
patent: 5998549 (1999-12-01), Milbourn et al.
patent: 6012327 (2000-01-01), Seth et al.
patent: 6120853 (2000-09-01), Naruse et al.
patent: 6136428 (2000-10-01), Thuong et al.
patent: 6139982 (2000-10-01), Bottomley et al.
patent: 6214530 (2001-04-01), Morrison et al.
patent: 6280813 (2001-08-01), Carey et al.
patent: 6541132 (2003-04-01), Noguchi et al.
patent: 6610426 (2003-08-01), Hashimoto et al.
patent: 6960385 (2005-11-01), Huelsman et al.
patent: 2002/0150792 (2002-10-01), Kolb et al.
patent: 2004/0072024 (2004-04-01), Mori et al.
patent: 2006/0019126 (2006-01-01), Huelsman et al.
patent: 0 313 043 (1989-04-01), None
patent: 0 538 724 (1993-04-01), None
patent: 0 603 582 (1997-02-01), None
patent: WO 96/08319 (1996-03-01), None
patent: WO 96/24088 (1996-08-01), None
patent: WO 98/43746 (1998-10-01), None
Streitwieser, Jr. et al., Introduction to Organic Chemistry, McMillan Publishing Co., Inc. (NY, NY 1976) pp. 947-949.
Cohen et al., Modern Coating & Drying Technology, VCH Publishers, (1992), pp. 9, 119-120, 142-145, 156-159, and 162-163.
Miyamoto, “On the Difference of Three Die Coating Methods: History and Characteristics of Die Coating Methods,” 10thInternational Coating Science and Technology Symposium, Technical Session 5: Coating Fundamentals, Sep. 26, 2000, Scottsdale, Arizona.

Affiliated with

Also associated with

Rating

Magnetic tape recording system having tape with defined... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic tape recording system having tape with defined..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic tape recording system having tape with defined... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3968883